Primary Offering Prospectus (Form 424B2)

Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The initial estimated value of the Notes as of the pricing date is expected to be between $920.00 and $980.00 per $1,000.00 in principal amount of Notes, which is less than the public offering price listed below. The actual value of your Notes at any time will reflect many factors and cannot be predicted with accuracy. See "Risk Factors" beginning on page PS-11 of this pricing supplement and "Structuring the Notes" on page PS-31 of this pricing supplement for additional information.

There are important differences between the Notes and a conventional debt security. Potential purchasers of the Notes should consider the information in "Risk Factors" beginning on page PS-11of this pricing supplement, page PS-5 of the accompanying product supplement, page S-7 of the accompanying prospectus supplement, and page 7 of the accompanying prospectus.

None of the Securities and Exchange Commission (the "SEC"), any state securities commission, or any other regulatory body has approved or disapproved of these securities or determined if this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The Notes and the related guarantee:

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Terms of the Notes

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

* Subject to change.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Observation Dates, Contingent Payment Dates and Call Payment Dates

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

* The Observation Dates are subject to postponement as set forth in "Description of the Notes-Certain Terms of the Notes-Events Relating to Observation Dates" beginning on page PS-21 of the accompanying product supplement.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Any payments on the Notes depend on the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor, and on the performance of the Underlyings. The economic terms of the Notes are based on BAC's internal funding rate, which is the rate it would pay to borrow funds through the issuance of market-linked notes, and the economic terms of certain related hedging arrangements BAC's affiliates enter into. BAC's internal funding rate is typically lower than the rate it would pay when it issues conventional fixed or floating rate debt securities. This difference in funding rate, as well as the underwriting discount, if any, the referral fee and the hedging related charges described below (see "Risk Factors" beginning on page PS-11), will reduce the economic terms of the Notes to you and the initial estimated value of the Notes. Due to these factors, the public offering price you pay to purchase the Notes will be greater than the initial estimated value of the Notes as of the pricing date.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The initial estimated value range of the Notes is set forth on the cover page of this pricing supplement. The final pricing supplement will set forth the initial estimated value of the Notes as of the pricing date. For more information about the initial estimated value and the structuring of the Notes, see "Risk Factors" beginning on page PS-11 and "Structuring the Notes" on page PS-31.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Contingent Coupon Payment and Redemption Amount Determination

On each Contingent Payment Date, if the Notes have not been previously called, you may receive a

Contingent Coupon Payment per $1,000.00 in principal amount of Notes determined as follows:

Assuming the Notes have not been called, on the Maturity Date, you will receive a cash payment per $1,000.00 in principal amount of Notes determined as follows:

All payments described above are subject to the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Total Contingent Coupon Payment Examples

The table below illustrates the hypothetical total Contingent Coupon Payments per $1,000.00 in principal amount of Notes over the term of the Notes, based on the Contingent Coupon Payment of $12.084, depending on how many Contingent Coupon Payments are payable prior to an Optional Early Redemption or maturity. Depending on the performance of the Underlyings, you may not receive any Contingent Coupon Payments during the term of the Notes.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Hypothetical Payout Profile and Examples of Payments at Maturity

Contingent Income Issuer Callable Yield Notes Table

The following table is for purposes of illustration only. It assumes the Notes have not been called prior to maturity and is based on hypothetical values and shows hypothetical returns on the Notes. The table illustrates the calculation of the Redemption Amount and the return on the Notes based on a hypothetical Starting Value of 100 for the Least Performing Underlying, a hypothetical Coupon Barrier of 60 for the Least Performing Underlying, a hypothetical Threshold Value of 50 for the Least Performing Underlying, the Contingent Coupon Payment of $12.084 per $1,000.00 in principal amount of Notes and a range of hypothetical Ending Values of the Least Performing Underlying. The actual amount you receive and the resulting return will depend on the actual Starting Values, Coupon Barriers, Threshold Values, Observation Values and Ending Values of the Underlyings, whether the Notes are called prior to maturity, and whether you hold the Notes to maturity. The following examples do not take into account any tax consequences from investing in the Notes.

For recent actual values of the Underlyings, see "The Underlyings" section below. The Ending Value of each Underlying will not include any income generated by dividends or other distributions paid with respect to shares or units of that Underlying or on the securities or assets included in that Underlying, as applicable. In addition, all payments on the Notes are subject to Issuer and Guarantor credit risk.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Risk Factors

Your investment in the Notes entails significant risks, many of which differ from those of a conventional debt security. Your decision to purchase the Notes should be made only after carefully considering the risks of an investment in the Notes, including those discussed below, with your advisors in light of your particular circumstances. The Notes are not an appropriate investment for you if you are not knowledgeable about significant elements of the Notes or financial matters in general. You should carefully review the more detailed explanation of risks relating to the Notes in the "Risk Factors" sections beginning on page PS-5 of the accompanying product supplement, page S-7 of the accompanying prospectus supplement and page 7 of the accompanying prospectus, each as identified on page PS-36 below.

Structure-related Risks

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Valuation and Market-related Risks

Conflict-related Risks

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Underlying-related Risks

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Prices of securities in foreign countries are subject to political, economic, financial and social factors that apply in those geographical regions. These factors, which could negatively affect those securities markets, include the possibility of recent or future changes in a foreign government's economic and fiscal policies, the possible imposition of, or changes in, currency exchange laws or other laws or restrictions applicable to foreign companies or investments in foreign equity securities and the possibility of fluctuations in the rate of exchange between currencies, the possibility of outbreaks of hostility and political instability and the possibility of natural disaster or adverse public health developments in the region. Moreover, foreign economies may differ favorably or unfavorably from the U.S. economy in important respects such as growth of gross national product, rate of inflation, capital reinvestment, resources and self-sufficiency.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Tax-related Risks

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The Underlyings

All disclosures contained in this pricing supplement regarding the Underlyings, including, without limitation, their make-up, method of calculation, and changes in their components, have been derived from publicly available sources. The information reflects the policies of, and is subject to change by, the investment advisor of the KWEB, the investment advisor of the SMH and the investment advisor of the SLV (collectively, the "Investment Advisors"). The Investment Advisors, which license the copyright and all other rights to the respective Underlyings, have no obligation to continue to publish, and may discontinue publication of, the Underlyings. The consequences of any Investment Advisor discontinuing publication of the applicable Underlying are discussed in "Description of the Notes - Anti-Dilution and Discontinuance Adjustments Relating to ETFs - Discontinuance of or Material Change to an ETF" in the accompanying product supplement. None of us, the Guarantor, the calculation agent, or BofAS accepts any responsibility for the calculation, maintenance or publication of any Underlying or any successor underlying. None of us, the Guarantor, BofAS or any of our other affiliates makes any representation to you as to the future performance of the Underlyings. You should make your own investigation into the Underlyings.

The KraneShares CSI China Internet ETF

The KraneShares CSI China Internet ETF seeks to provide investment results that correspond generally to the price and yield performance, before fees and expenses, of the CSI Overseas China Internet Index. The CSI Overseas China Internet Index is designed to measure the equity market performance of investable publicly traded "China-based companies" whose primary business or businesses are in the Internet and Internet-related sectors, and are listed outside of mainland China, as determined by the index provider, China Securities Index Co., Ltd. ("CSI"). The returns of the KWEB may be affected by certain management fees and other expenses, which are detailed in its prospectus. Shares of the KraneShares CSI China Internet ETF are listed and trade on the NYSE Arca under the ticker symbol "KWEB".

The KWEB uses a representative sampling strategy to try to track the CSI Overseas China Internet Index, and generally does not hold all of the equity securities held by the CSI Overseas China Internet Index. The KWEB invests in a representative sample of securities in the CSI Overseas China Internet Index that collectively have a similar investment profile as the CSI Overseas China Internet Index. Under normal circumstances, the KWEB will invest at least 80% of its assets in the securities of the CSI Overseas China Internet Index and in depositary receipts representing such securities. The KWEB may invest up to 20% of its assets in instruments that are not included in the CSI Overseas China Internet Index, but that Krane believes will help the KWEB track the CSI Overseas China Internet Index. These investments may include equity securities and depositary receipts of issuers whose securities are not constituents of the CSI Overseas China Internet Index, derivative instruments (including swaps, futures, forwards, structured notes and options), other investment companies (including exchange traded funds or "ETFs") and cash or cash equivalents (including money market funds). The other investment companies in which the KWEB may invest may be advised, sponsored or otherwise serviced by Krane and/or its affiliates.

Correlation

The CSI Overseas China Internet Index is a theoretical financial calculation, while the KWEB is an actual investment portfolio. The performance of the KWEB and the CSI Overseas China Internet Index may vary somewhat due to transaction costs, market impact, corporate actions (such as mergers and spin-offs), and timing variances and differences between the KWEB and the CSI Overseas China Internet Index resulting from the KWEB's use of representative sampling or from legal restrictions (such as diversification requirements) that apply to the KWEB but not to the CSI Overseas China Internet Index. The KWEB, using representative sampling, can be expected to have a greater tracking error (i.e., the correlation is weaker) than a fund using replication indexing strategy. Replication is an indexing strategy in which a fund invests in substantially all of the securities in its underlying index in approximately the same proportions as in the underlying index.

Description of the CSI Overseas China Internet Index

The CSI Overseas China Internet Index is a free-float adjusted market capitalization weighted index consisting of overseas-listed securities of China-based companies assigned to one of the following categories: Internet Software & Services; Home Entertainment Software; Internet Retail; Internet Service; and Mobile Internet.

Index Construction

Constituent Selection

The universe of securities eligible for inclusion in the CSI Overseas China Internet Index consists of securities that satisfy the following conditions:

Hong Kong-listed securities that meet any of the following conditions will be excluded from the eligible universe:

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Then, to select index constituents, all securities that had an average daily trading value in the past year of less than 3 million USD or an average daily market capitalization in the past year of less than 2 billion USD are removed from the eligible universe. From the remaining securities, securities are chosen for inclusion in the CSI Overseas China Internet Index if they are classified in one of the following sectors, as determined by CSI: Internet Software & Services (which includes companies that develop and market internet software and/or provide internet services); Home Entertainment Software (which includes manufacturers of home entertainment software and educational software primarily for home use); Internet Retail (which includes companies providing retail services primarily on the internet); Internet Service (which includes companies providing commercial services primarily on the internet); and Mobile Internet (which includes companies developing and marketing mobile internet software and/or providing mobile internet services).

Constituent Weightings

The constituents are ranked by adjusted USD market capitalization subject to a cap of 10%. The weight of constituents is determined according to the following methodology:

Index Calculation

The CSI Overseas China Internet Index is a free-float adjusted market capitalization weighted index. The CSI Overseas China Internet Index is calculated using the following formula:

Float Adjustment. CSI defines free-float of a constituent as the shares outstanding and tradable in the security market. The identification and calculation of free float by CSI is based on objective information including prospectuses and listing notices, periodic reports and temporary reports. CSI tracks the changes of free-float shares and adjusts free-float changes resulting from shareholder's behavior every six months. All restricted shares subject to a lock-in period are deemed as non free-float. Non-restricted shares shall be deemed as free float, if they fall into one of the following types of shares: (1) shares held by founders of the company or their families, and by senior executives, by directors, or by supervisors, etc.; (2) shares held by the government or its subsidiaries; (3) shares held by strategic investors for long-term strategic interest; and (4) shares held by employee share plans; provided, however, such non-restricted shares shall be deemed as non-free float if the holdings by shareholders or shareholders acting in concert are 5% or greater. Restricted shares after the lock-in period are treated in the same way as non-restricted shares.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The weight factor is a value between 0 and 1 and is determined as described under "- Constituent Weightings" above.

Exchange Rate. The price of each component stock and the total market capitalization as of the base date are converted into USD equivalents using the relevant exchange rates as of the applicable dates. Exchange rates are sourced from the data providers as designated by CSI from time to time. The real-time calculation of the CSI Overseas China Internet Index is based on the real-time price date published by the stock exchanges during trading hours through their quotation system. The real-time exchange rate is used to calculate the real-time index; the exchange rate at the index closing time is used to calculate the index closing level.

Divisor. The purpose of the index divisor is to maintain the continuity of an index level following a change to the constituent list, a capital change in the index constituents or an index constituent's market value changes due to non-trading factors. The new divisor is derived from the following formula:

The new divisor derived from this formula will be used for the future index calculation.

Index Maintenance

Index Reviews

The CSI Overseas China Internet Index is adjusted and rebalanced semi-annually during the last ten days of May and November of each year. The index rebalancing is effective as of the next trading day after the second Friday in June and December. The weight factor is assigned to each constituent at each rebalancing date and stays the same until the next rebalancing date.

Suspended Companies

At the periodic index review, if an index constituent is suspended, CSI will determine its treatment as follows:

For suspended companies that are not currently constituents of the CSI Overseas China Internet Index, CSI determines their treatment as follows:

Corporate Actions and Events

In the case of exceptional corporate events, CSI will review the CSI Overseas China Internet Index and make necessary ongoing adjustments between index reviews in order to maintain the representativeness of the index and ensure it is investable. Companies that are delisted or that file for bankruptcy or receive a bankruptcy order are deleted from the CSI Overseas China Internet Index. For corporate events resulting in a simultaneous change in the constituents' price and shares, such as bonus issue, rights issue, stock split and consolidation, etc., adjustments shall be implemented on the ex-right date.

Initial Public Offerings

Generally, IPOs are added to the index on the 11th trading day, provided that the security satisfies the index eligibility criteria and the size of the IPO is more than 10 billion USD.

Mergers and Acquisitions

When mergers and acquisitions take place between companies that are both constituents of the CSI Overseas China Internet Index or when a constituent company merges with a non-constituent company, the security of the resulting new company retains index eligibility and remains in the CSI Overseas China Internet Index if it meets the index eligibility criteria. Otherwise, the security will be deleted from the index as soon as practicable.

When a non-constituent company purchases or takes over a constituent company, if the security of the resulting new company meets the index eligibility criteria, the new security may be added to the CSI Overseas China Internet Index. Otherwise, the acquired constituent company will be deleted from the index as soon as practicable.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Index Governance

CSI annually reviews the index calculation and maintenance methodology and other index policy documents to ensure that the CSI Overseas China Internet Index continues to achieve the stated objectives. After the regular review is completed, an annual review report is produced and presented to the index oversight committee.

CSI may review index methodology documents outside the annual scheduled reviews based on, but not limited to, one of the following: underlying market environment review, market participant feedback, problems identified in index management or unusual corporate events treatment.

Historical Performance of the KWEB

The following graph sets forth the daily historical performance of the KWEB in the period from January 2, 2020 through December 3, 2025. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. On December 3, 2025, the Closing Market Price of the KWEB was $37.14.

This historical data on the KWEB is not necessarily indicative of the future performance of the KWEB or what the value of the Notes may be. Any historical upward or downward trend in the Closing Market Price of the KWEB during any period set forth above is not an indication that the Closing Market Price of the KWEB is more or less likely to increase or decrease at any time over the term of the Notes.

Before investing in the Notes, you should consult publicly available sources for the Closing Market Prices and trading pattern of the KWEB.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The VanEck^® Semiconductor ETF

The SMH is an exchange-traded fund that trades on the NYSE Arca, Inc. under the ticker symbol "SMH." The SMH seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the MVIS^® US Listed Semiconductor 25 Index ("MVSMH"). For more information about the MVSMH, please see "The MVIS^® US Listed Semiconductor 25 Index" below.

The SMH, using a "passive" or indexing investment approach, attempts to approximate the investment performance of the MVSMH by investing in a portfolio of securities that generally replicates the MVSMH.

The SMH's return may not match the return of the MVSMH for a number of reasons. For example, the SMH incurs a number of operating expenses not applicable to the MVSMH and incurs costs associated with buying and selling securities, especially when rebalancing the SMH's securities holdings to reflect changes in the composition of the MVSMH, which are not factored into the return of the MVSMH. Transaction costs, including brokerage costs, will decrease the SMH's net asset value to the extent not offset by the transaction fee payable by an authorized participant. Market disruptions and regulatory restrictions could have an adverse effect on the SMH's ability to adjust its exposure to the required levels in order to track the MVSMH. Errors in the MVSMH data, the MVSMH computations and/or the construction of the MVSMH in accordance with its methodology may occur from time to time and may not be identified and corrected by the MVSMH provider for a period of time or at all, which may have an adverse impact on the SMH and its shareholders. In addition, the SMH may not invest in certain securities included in the MVSMH, or invest in them in the exact proportions in which they are represented in the MVSMH. The SMH's performance may also deviate from the return of the MVSMH due to legal restrictions or limitations imposed by the governments of certain countries, certain listing standards of the SMH's listing exchange, a lack of liquidity on stock exchanges in which the securities trade, potential adverse tax consequences or other regulatory reasons (such as diversification requirements). The SMH may value certain of its investments and/or other assets based on fair value prices. To the extent the SMH calculates its net asset value based on fair value prices and the value of the MVSMH is based on securities' closing prices (i.e., the value of the MVSMH is not based on fair value prices), the SMH's ability to track the MVSMH may be adversely affected. In addition, any issues the SMH encounters with regard to currency convertibility (including the cost of borrowing funds, if any) and repatriation may also increase tracking risk. In light of the factors discussed above, the SMH's return may deviate significantly from the return of the MVSMH. Changes to the composition of the MVSMH in connection with a rebalancing or reconstitution of the MVSMH may cause the SMH to experience increased volatility, during which time the SMH's index tracking risk may be heightened.

The MVIS^® US Listed Semiconductor 25 Index

All information contained in this pricing supplement regarding the MVSMH, including, without limitation, its make-up, method of calculation and changes in its components, from publicly available information, without independent verification. This information reflects the policies of, and is subject to change by, MV Index Solutions GmbH ("MVIS"). The MVSMH was developed by MVIS and is maintained and published by MVIS. The MVSMH is calculated by Solactive AG. MVIS has no obligation to continue to publish, and may discontinue the publication of, the MVSMH.

The MVSMH is reported by Bloomberg L.P. under the ticker symbol "MVSMH."

The MVSMH is designed to track the performance of the largest and most liquid U.S.-listed companies that derive at least 50% (25% for current components) of their revenues from semiconductors. This includes companies engaged primarily in the production of semiconductors and semiconductor equipment. The MVSMH was launched on August 12, 2011 with a base index value of 1,000 as of September 29, 2000.

Index Composition and Maintenance

The Index Universe

The index universe includes only common stocks and stocks with similar characteristics from financial markets that are freely investable for foreign investors and that provide real-time and historical component and currency pricing. Limited partnerships are excluded. Companies from financial markets that are not freely investable for foreign investors or that do not provide real-time and historical component and currency pricing may still be eligible if they have a listing on an eligible exchange and if they meet all the size and liquidity requirements on that exchange.

Only stocks that have a full market capitalization exceeding US$50 million are eligible for the index universe.

Investable Index Universe

Companies with a free-float (or shares available to foreign investors) of less than 5% for existing index components or less than 10% for new components are ineligible for inclusion.

In addition to the above, stocks that are currently not in the MVSMH must meet the following size and liquidity requirements:

• a full market capitalization exceeding US$150 million;

• a three-month average-daily-trading volume of at least US$1 million at the current review and also at the previous two reviews; and

• at least 250,000 shares traded per month over the last six months at the current review and also at the previous two reviews.

For stocks already in the MVSMH the following applies:

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

• a full market capitalization exceeding US$75 million; and

• a three-month average-daily-trading volume of at least US$0.2 million in at least two of the latest three quarters (current review and also at previous two reviews)

• In addition, a three-month average-daily-trading volume of at least US$0.6 million at current review or at one of the previous two reviews; or

• at least 200,000 shares traded per month over the last six months at the current review or at one of the previous two reviews.

In case the number of investable stocks drops below the minimum component number for the respective index, current components remain investable.

Only one share line of each company is eligible. In case more than one share line fulfills the above size and liquidity rules, only the largest share line by free-float market capitalization is eligible. MVIS can, in exceptional cases (e.g., significantly higher liquidity), decide for a different share line.

In case the free-float market capitalization of a non-component share line:

• exceeds the free-float market capitalization of a share line of the same company which is an index component by at least 25%; and

• fulfills all size and liquidity eligibility criteria for non-components,

• the current component share line will be replaced by the larger one. MVIS can, in exceptional cases (e.g., significantly higher liquidity), decide to keep the current share line instead.

Index Constituent Selection

The MVSMH is reviewed on a semi-annual basis in March and September.

The target coverage of the MVSMH is 25 companies from the investable universe. MVSMH constituents are selected using the following procedure:

(1) The largest 50 stocks (by full market capitalization) from the investable universe qualify.

(2) The 50 stocks are ranked in two different ways - by free-float market capitalization in descending order (the largest company receives rank "1") and then by three-month average-daily-trading volume in descending order (the most liquid company receives rank "1"). These two ranks are added up.

(3) The 50 stocks are then ranked by the sum of their two ranks in Step 2 in ascending order. If two companies have the same sum of ranks, the larger company is placed on top.

a. Initially, the highest ranked 25 companies made up the MVSMH.

b. On-going, a 10-40 buffer is applied: the highest ranked 10 companies qualify. The remaining 15 companies are selected from the highest ranked remaining current MVSMH components ranked between 11 and 40. If the number of selected companies is still below 25, then the highest ranked remaining stocks are selected until 25 companies have been selected.

Review Schedule

The reviews for the MVSMH are based on the closing data on the last business day in February and August. If a company does not trade on the last business day in February or August, the last available price for this company will be used.

The underlying index data (e.g., new number of shares, new free-float factors and new weighting cap factors) is announced on the second Friday in March or September. The weighting cap factors are based on closing data of the Wednesday prior to the second Friday in March or September. Changes to the MVSMH are implemented and based on the closing prices of the third Friday in March or September. If the third Friday is not a business day, then the review will take place on the last business day before the third Friday. If a constituent of the MVSMH does not trade on the third Friday in March or September, then the last available price for that index constituent will be used. Changes become effective on the next business day. The component changes to the MVSMH are announced on the second Friday in March or September.

Ongoing Maintenance

In addition to the periodic reviews, the MVSMH is continually reviewed for corporate events (e.g., mergers, takeovers, spin-offs, delistings and bankruptcies) that affect the MVSMH components.

Deletions. For all corporate events that result in a stock deletion from the MVSMH, the deleted stock will be replaced with the highest ranked non-component on the most recent selection list immediately only if the number of components in the MVSMH would drop below 20. The replacement stock will be added at the same weight as the deleted stock. Only in case the number of components drop below its minimum due to a merger of two or more index components, the replacement stock will be added with its free-float market capitalization, weighted with the capping factor of the uncapped components in the small-weight group of the weighting scheme. In all other cases (i.e., there is not replacement), the additional weight resulting from the deletion will be redistributed proportionally across all other components of the MVSMH.

Changes to Free-Float Factor and Number of Shares. Changes to the number of shares or the free-float factors due to corporate actions like stock dividends, splits, rights issues, etc. are implemented immediately and will be effective the next trading day (i.e., the ex-date). Simple share/float changes are implemented after a 3-day notice period.

Initial Public Offerings (IPOs) and Spin-Offs. An IPO stock is eligible for fast-track addition to the index universe for the MVSMH once; either at the next

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

semi-annual review if it has been trading since at least the last trading day of the month prior to the review snapshot dates (i.e., the last trading day in February or August) or else at the then-following semi-annual review. In order to be added to the MVSMH the IPO stock has to meet the size and liquidity requirements:

• the IPO must have a full market capitalization exceeding US$150 million;

• the IPO must have a free-float factor of at least 10%;

• the IPO must have an average-daily-trading volume of at least US$1 million; and

• the IPO must have traded at least 250,000 shares per month (or per 22 days).

This rule is applicable for newly spun-off companies as well.

Changes due to Mergers & Takeovers. A merger or takeover is deemed successful if it has been declared wholly unconditional and has received approval of all regulatory agencies with jurisdiction over the transaction. The result of a merger or takeover is typically one surviving stock and one or more non-surviving stocks that may not necessarily be de-listed from the respective trading system(s).

If a MVSMH component merges with or takes over another MVSMH component: The surviving stock remains in the MVSMH and the other stock is deleted immediately from the MVSMH. Its shares and float are adjusted according to the terms of the merger/takeover. The index market capitalization of the merged company corresponds to the market capitalization of the two separate companies.

If a MVSMH component merges with or takes over a non-MVSMH component: If the surviving stock meets the MVSMH requirements, then it remains in the MVSMH and its shares (if the share change is greater than 10%) and float are adjusted according to the terms of the merger/takeover. If the surviving stock does not meet the MVSMH requirements, then it is deleted immediately from the MVSMH.

If a non-MVSMH component merges with or takes over a MVSMH component: If the surviving stock meets the MVSMH requirements, then it will be added to the MVSMH (shares (if the share change is greater than 10%) and float adjusted according to the terms of the merger/takeover) and will replace the current MVSMH component. If the surviving stock does not meet the MVSMH requirements, then it will not be added to the MVSMH and the current MVSMH component is deleted immediately from the MVSMH.

Changes due to Spin-Offs. Each spin-off stock is immediately added to the MVSMH for at least two trading days. If a spin-off company does not qualify for the MVSMH, it will be deleted based on its closing price. Shares and floats of the surviving companies are adjusted according to the terms of the spin-off. In case the number of MVSMH components drops below the minimum component number and no non-component stock is eligible as a replacement, the determination of the addition is subject to MVIS's decision.

Index Calculation

The value of the MVSMH is calculated using the Laspeyres' formula, rounded to two decimal places, with stock prices converted to U.S. dollars:

where (for all stocks (i) in the MVSMH):

· p _i = stock price (rounded to four decimal places);

· q _i = number of shares;

· ff _i = free-float factor (rounded to two decimal places);

· fx _i = exchange rate (local currency to U.S. Dollar) (rounded to 12 decimal places);

· cf _i = sector-weighting cap factor (if applicable, otherwise set to 1) (rounded to 16 decimal places);

· M = free-float market capitalization of the MVSMH; and

· D = divisor (rounded to six decimal places).

Free-Float

The MVSMH is free-float adjusted - that is, the number of shares outstanding is reduced to exclude closely held shares (amount larger than 5% of the company's full market capitalization) from the index calculation. At times, other adjustments are made to the share count to reflect foreign ownership limits. These are combined with the block-ownership adjustments into a single factor. To avoid unwanted double counting, either the block-ownership adjustment or the restricted stocks adjustment is applied, whichever produces the higher result. Free-float factors are reviewed quarterly.

Company-Weighting Cap Factors

Companies in the MVSMH are weighted according to their free-float market capitalization, as modified by the company-weighting cap factors. The MVSMH used the company-weighting cap factors to ensure diversification to avoid overweighting. The company-weighting cap factors are reviewed quarterly and applied, if necessary. The following weighting scheme applies to the MVSMH:

(1) All MVSMH components are weighted by their free-float market capitalization.

(2) All companies exceeding 4.5% but at least the largest five and at the maximum the largest 10 companies are grouped together (so called

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

"Large-Weights"). All other companies are grouped together as well (so called "Small-Weights").

(3) The aggregated weighting of the Large-Weights is capped at 50%:

a. Large-Weights: If the aggregated weighting of all companies in Large-Weight exceeds 50%, then a capping factor is calculated to bring the weighting down to 50%; at the same time, a second capping factor for the Small-Weights is calculated to increase the aggregated weight to 50%. These two factors are then applied to all companies in the Large-Weights or the Small-Weights respectively.

b. Large-Weights: The maximum weight for any single stock is 20% and the minimum weighting is 5%. If a stock is above the maximum or below the minimum weight, then the weight will be reduced to the maximum weight or increased to the minimum weight and the excess weight will be re-distributed proportionally across all other remaining MVSMH constituents in the Large-Weights.

c. Small-Weights: The maximum weight for any single stock is 4.5%. If a stock is above the maximum weight, then the weight will be reduced to the maximum weight and the excess weight will be re-distributed proportionally across all other remaining MVSMH constituents in the Small-Weights.

Divisor Adjustments

Index maintenance (reflecting changes in, e.g., shares outstanding, capital actions, addition or deletion of stocks to the MVSMH) should not change the level of the MVSMH. This is accomplished with an adjustment to the divisor. Any change to the stocks in the MVSMH that alters the total market value of the MVSMH while holding stock prices constant will require a divisor adjustment.

where ∆MC is the difference between closing market capitalization and adjusted closing market capitalization of the MVSMH.

Data Correction

Incorrect or missing input data will be corrected immediately.

Corporate Action Related Adjustments

Corporate actions range widely from routine share issuances or buy backs to unusual events like spin-offs or mergers. These are listed on the table below with notes about the necessary changes and whether the divisor will be adjusted. Implementation takes place on the ex-date.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

With corporate actions where cash dividends or other corporate assets are distributed to shareholders, the price of the stock will drop on the ex-dividend day (the first day when a new shareholder is eligible to receive the distribution). The effect of the divisor adjustment is to prevent this price drop from causing a corresponding drop in the MVSMH.

Corporate actions are announced at least four days prior to implementation.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Historical Performance of the SMH

The following graph sets forth the daily historical performance of the SMH in the period from January 2, 2020 through December 3, 2025. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. On December 3, 2025, the Closing Market Price of the SMH was $364.37.

This historical data on the SMH is not necessarily indicative of the future performance of the SMH or what the value of the Notes may be. Any historical upward or downward trend in the Closing Market Price of the SMH during any period set forth above is not an indication that the Closing Market Price of the SMH is more or less likely to increase or decrease at any time over the term of the Notes.

Before investing in the Notes, you should consult publicly available sources for the Closing Market Prices and trading pattern of the SMH.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

The iShares^® Silver Trust

The SLV trades under the ticker symbol "SLV" on NYSE Arca. iShares Delaware Trust Sponsor LLC ("iShares Delaware") is the sponsor of the SLV. The Bank of New York Mellon is the trustee of the SLV, and JPMorgan Chase Bank, N.A., London branch is the custodian of the SLV.

The SLV seeks to reflect generally the price of silver before the payment of its expenses and liabilities. The assets of the SLV consist primarily of silver held by the custodian on behalf of the SLV. The SLV issues shares ("Shares") in exchange for deposits of silver and distributes silver in connection with the redemption of Shares. The Shares of the SLV are intended to constitute a simple and cost-effective means of making an investment similar to an investment in silver.

The SLV issues Shares in blocks of 50,000 Shares (a block of 50,000 Shares is called a "Basket") to certain authorized participants, on an ongoing basis. Baskets are only issued or redeemed in exchange for an amount of silver determined by the trustee on each day that NYSE Arca is open for regular trading.

The Shares of the SLV represent units of fractional undivided beneficial interest in and ownership of the assets of the SLV. The SLV is a passive investment vehicle and the trustee of the SLV does not actively manage the silver held by the SLV. The trustee of the SLV sells silver held by the SLV to pay the SLV's expenses on an as-needed basis irrespective of then-current silver prices. Currently, the SLV's only ordinary recurring expense is expected to be iShares Delaware's fee, which is accrued daily at an annualized rate equal to 0.50% of the NAV of the SLV and is payable monthly in arrears. The trustee of the SLV will, when directed by iShares Delaware, and, in the absence of such direction, may, in its discretion, sell silver in such quantity and at such times as may be necessary to permit payment of iShares Delaware's fee and of SLV expenses or liabilities not assumed by iShares Delaware.

Information provided to or filed with the SEC by the SLV pursuant to the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended, can be located by reference to SEC file numbers 333-268747 and 001-32863, respectively, through the SEC's website at http://www.sec.gov. Information on that website is not included or incorporated by reference in this document. According to the SLV's prospectus, the SLV is not a mutual fund or any other type of investment company within the meaning of the Investment Company Act of 1940, as amended, and is not subject to regulation thereunder, the SLV is not a commodity pool within the meaning of the Commodity Exchange Act of 1936, as amended, and is not subject to regulation thereunder, and iShares Delaware is not subject to regulation by the Commodity Futures Trading Commission as a commodity pool operator or a commodity trading advisor.

Creation and Redemption

The SLV issues and redeems Baskets on a continuous basis. Baskets are only issued or redeemed in exchange for an amount of silver determined by the trustee on each day that NYSE Arca is open for regular trading. No Shares are issued unless the custodian has allocated to the SLV's account (except for an unallocated amount of silver not in excess of 1,100 ounces), the corresponding amount of silver. At the creation of the SLV, a Basket required delivery of 500,000 ounces of silver. The amount of silver necessary for the creation of a Basket, or to be received upon redemption of a Basket, will decrease over the life of the SLV, due to the payment or accrual of fees and other expenses or liabilities payable by the trust. Baskets may be created or redeemed only by Authorized Participants, who pay the trustee a transaction fee for each order to create or redeem Baskets.

Valuation of Silver; Computation of NAV

On each business day, as soon as practicable after 4:00 p.m. (New York time), the trustee evaluates the silver held by the SLV and determines the NAV of the SLV and the NAV per Share. For purposes of making these calculations, a business day means any day other than a day when NYSE Arca is closed for regular trading. The trustee values the silver held by the SLV using that day's LBMA Silver Price. LBMA Silver Price is the price per ounce, in U.S. dollars, of unallocated silver delivered in London determined by the ICE Benchmark Administration following an electronic auction consisting of one or more 30-second rounds starting at 12:00 p.m. (London time) on each day that the London silver market is open for business and published shortly thereafter. Once the value of the SLV's silver has been determined, the trustee subtracts all accrued fees, expenses and other liabilities of the SLV from the total value of the silver and all other assets of the SLV. The resulting figure is the NAV of the SLV. The trustee determines the NAV per Share by dividing the NAV of the SLV by the number of Shares outstanding on the day the computation is made.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Historical Performance of the SLV

The following graph sets forth the daily historical performance of the SLV in the period from January 2, 2020 through December 3, 2025. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. On December 3, 2025, the Closing Market Price of the SLV was $53.07.

This historical data on the SLV is not necessarily indicative of the future performance of the SLV or what the value of the Notes may be. Any historical upward or downward trend in the Closing Market Price of the SLV during any period set forth above is not an indication that the Closing Market Price of the SLV is more or less likely to increase or decrease at any time over the term of the Notes.

Before investing in the Notes, you should consult publicly available sources for the Closing Market Prices and trading pattern of the SLV.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Supplement to the Plan of Distribution; Role of BofAS and Conflicts of Interest

BofAS, a broker-dealer affiliate of ours, is a member of the Financial Industry Regulatory Authority, Inc. ("FINRA") and will participate as selling agent in the distribution of the Notes. Accordingly, the offering of the Notes will conform to the requirements of FINRA Rule 5121. BofAS may not make sales in this offering to any of its discretionary accounts without the prior written approval of the account holder.

We expect to deliver the Notes against payment therefor in New York, New York on a date that is greater than one business day following the pricing date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, if the initial settlement of the Notes occurs more than one business day from the pricing date, purchasers who wish to trade the Notes more than one business day prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

Under our distribution agreement with BofAS, BofAS will purchase the Notes from us as principal at the public offering price indicated on the cover of this pricing supplement, less the indicated underwriting discount, if any. BofAS will sell the Notes to other broker-dealers that will participate in the offering and that are not affiliated with us, at an agreed discount to the principal amount. Each of those broker-dealers may sell the Notes to one or more additional broker-dealers. BofAS has informed us that these discounts may vary from dealer to dealer and that not all dealers will purchase or repurchase the Notes at the same discount. Certain dealers who purchase the Notes for sale to certain fee-based advisory accounts may forgo some or all of their selling concessions, fees or commissions. The public offering price for investors purchasing the Notes in these fee-based advisory accounts may be as low as $990.00 per $1,000.00 in principal amount of Notes. In addition to the underwriting discount, if any, an affiliate of BofA Finance will pay a referral fee of up to $5.00 per $1,000.00 in principal amount of Notes in connection with the distribution of the Notes to other registered broker-dealers.

BofAS and any of our other broker-dealer affiliates may use this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for offers and sales in secondary market transactions and market-making transactions in the Notes. However, they are not obligated to engage in such secondary market transactions and/or market-making transactions. These broker-dealer affiliates may act as principal or agent in these transactions, and any such sales will be made at prices related to prevailing market conditions at the time of the sale.

At BofAS's discretion, for a short, undetermined initial period after the issuance of the Notes, BofAS may offer to buy the Notes in the secondary market at a price that may exceed the initial estimated value of the Notes. Any price offered by BofAS for the Notes will be based on then-prevailing market conditions and other considerations, including the performance of the Underlyings and the remaining term of the Notes. However, none of us, the Guarantor, BofAS or any of our other affiliates is obligated to purchase your Notes at any price or at any time, and we cannot assure you that any party will purchase your Notes at a price that equals or exceeds the initial estimated value of the Notes.

Any price that BofAS may pay to repurchase the Notes will depend upon then prevailing market conditions, the creditworthiness of us and the Guarantor, and transaction costs. At certain times, this price may be higher than or lower than the initial estimated value of the Notes.

European Economic Area and United Kingdom

None of this pricing supplement, the accompanying product supplement, the accompanying prospectus or the accompanying prospectus supplement is a prospectus for the purposes of the Prospectus Regulation (as defined below). This pricing supplement, the accompanying product supplement, the accompanying prospectus and the accompanying prospectus supplement have been prepared on the basis that any offer of Notes in any Member State of the European Economic Area (the "EEA") or in the United Kingdom (each, a "Relevant State") will only be made to a legal entity which is a qualified investor under the Prospectus Regulation ("Qualified Investors"). Accordingly any person making or intending to make an offer in that Relevant State of Notes which are the subject of the offering contemplated in this pricing supplement, the accompanying product supplement, the accompanying prospectus and the accompanying prospectus supplement may only do so with respect to Qualified Investors. Neither BofA Finance nor BAC has authorized, nor does it authorize, the making of any offer of Notes other than to Qualified Investors. The expression "Prospectus Regulation" means Regulation (EU) 2017/1129.

PROHIBITION OF SALES TO EEA AND UNITED KINGDOM RETAIL INVESTORS - The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the EEA or in the United Kingdom. For these purposes: (a) a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU, as amended ("MiFID II"); or (ii) a customer within the meaning of Directive (EU) 2016/97 (the Insurance Distribution Directive) where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in the Prospectus Regulation; and (b) the expression "offer" includes the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe for the Notes. Consequently no key information document required by Regulation (EU) No 1286/2014, as amended (the "PRIIPs Regulation") for offering or selling the Notes or otherwise making them available to retail investors in the EEA or in the United Kingdom has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the EEA or in the United Kingdom may be unlawful under the PRIIPs Regulation.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

United Kingdom

The communication of this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement, the accompanying prospectus and any other document or materials relating to the issue of the Notes offered hereby is not being made, and such documents and/or materials have not been approved, by an authorized person for the purposes of Section 21 of the United Kingdom's Financial Services and Markets Act 2000, as amended (the "FSMA"). Accordingly, such documents and/or materials are not being distributed to, and must not be passed on to, the general public in the United Kingdom. The communication of such documents and/or materials as a financial promotion is only being made to those persons in the United Kingdom who have professional experience in matters relating to investments and who fall within the definition of investment professionals (as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Financial Promotion Order")), or who fall within Article 49(2)(a) to (d) of the Financial Promotion Order, or who are any other persons to whom it may otherwise lawfully be made under the Financial Promotion Order (all such persons together being referred to as "Relevant Persons"). In the United Kingdom, the Notes offered hereby are only available to, and any investment or investment activity to which this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement and the accompanying prospectus relates will be engaged in only with, Relevant Persons. Any person in the United Kingdom that is not a relevant person should not act or rely on this pricing supplement, the accompanying product supplement, the accompanying prospectus supplement or the accompanying prospectus or any of their contents.

Any invitation or inducement to engage in investment activity (within the meaning of Section 21 of the FSMA) in connection with the issue or sale of the Notes may only be communicated or caused to be communicated in circumstances in which Section 21(1) of the FSMA does not apply to BofA Finance, as Issuer, or BAC, as Guarantor.

All applicable provisions of the FSMA must be complied with in respect to anything done by any person in relation to the Notes in, from or otherwise involving the United Kingdom.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Structuring the Notes

The Notes are our debt securities, the return on which is linked to the performance of the Underlyings. The related guarantee is BAC's obligation. As is the case for all of our and BAC's respective debt securities, including our market-linked notes, the economic terms of the Notes reflect our and BAC's actual or perceived creditworthiness at the time of pricing. In addition, because market-linked notes result in increased operational, funding and liability management costs to us and BAC, BAC typically borrows the funds under these types of notes at a rate, which we refer to in this pricing supplement as BAC's internal funding rate, that is more favorable to BAC than the rate that it might pay for a conventional fixed or floating rate debt security. This generally relatively lower internal funding rate, which is reflected in the economic terms of the Notes, along with the fees and charges associated with market-linked notes, typically results in the initial estimated value of the Notes on the pricing date being less than their public offering price.

In order to meet our payment obligations on the Notes, at the time we issue the Notes, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with BofAS or one of our other affiliates. The terms of these hedging arrangements are determined based upon terms provided by BofAS and its affiliates, and take into account a number of factors, including our and BAC's creditworthiness, interest rate movements, the volatility of the Underlyings, the tenor of the Notes and the hedging arrangements. The economic terms of the Notes and their initial estimated value depend in part on the terms of these hedging arrangements.

BofAS has advised us that the hedging arrangements will include hedging related charges, reflecting the costs associated with, and our affiliates' profit earned from, these hedging arrangements. Since hedging entails risk and may be influenced by unpredictable market forces, actual profits or losses from these hedging transactions may be more or less than any expected amounts.

For further information, see "Risk Factors" beginning on page PS-5 and "Supplemental Use of Proceeds" on page PS-18 of the accompanying product supplement.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

U.S. Federal Income Tax Summary

The following summary of the material U.S. federal income and estate tax considerations of the acquisition, ownership, and disposition of the Notes supplements, and to the extent inconsistent supersedes, the discussion under "U.S. Federal Income Tax Considerations" in the accompanying prospectus and is not exhaustive of all possible tax considerations. This summary is based upon the Internal Revenue Code of 1986, as amended (the "Code"), regulations promulgated under the Code by the U.S. Treasury Department ("Treasury") (including proposed and temporary regulations), rulings, current administrative interpretations and official pronouncements of the IRS, and judicial decisions, all as currently in effect and all of which are subject to differing interpretations or to change, possibly with retroactive effect. No assurance can be given that the IRS would not assert, or that a court would not sustain, a position contrary to any of the tax consequences described below. This summary does not include any description of the tax laws of any state or local governments, or of any foreign government, that may be applicable to a particular holder.

Although the Notes are issued by us, they will be treated as if they were issued by BAC for U.S. federal income tax purposes. Accordingly throughout this tax discussion, references to "we," "our" or "us" are generally to BAC unless the context requires otherwise.

This summary is directed solely to U.S. Holders and Non-U.S. Holders that, (each, as defined in the accompanying prospectus) except as otherwise specifically noted, will purchase the Notes upon original issuance and will hold the Notes as capital assets within the meaning of Section 1221 of the Code, which generally means property held for investment, and that are not excluded from the discussion under "U.S. Federal Income Tax Considerations" in the accompanying prospectus.

You should consult your own tax advisor concerning the U.S. federal income tax consequences to you of acquiring, owning, and disposing of the Notes, as well as any tax consequences arising under the laws of any state, local, foreign, or other tax jurisdiction and the possible effects of changes in U.S. federal or other tax laws.

General

Although there is no statutory, judicial, or administrative authority directly addressing the characterization of the Notes, we intend to treat the Notes for all tax purposes as contingent income-bearing single financial contracts with respect to the Underlyings and under the terms of the Notes, we and every investor in the Notes agree, in the absence of an administrative determination or judicial ruling to the contrary, to treat the Notes in accordance with such characterization. In the opinion of our counsel, Sidley Austin LLP, it is reasonable to treat the Notes as contingent income-bearing single financial contracts with respect to the Underlyings. This discussion assumes that the Notes constitute contingent income-bearing single financial contracts with respect to the Underlyings for U.S. federal income tax purposes. If the Notes did not constitute contingent income-bearing single financial contracts, the tax consequences described below would be materially different.

This characterization of the Notes is not binding on the IRS or the courts. No statutory, judicial, or administrative authority directly addresses the characterization of the Notes or any similar instruments for U.S. federal income tax purposes, and no ruling is being requested from the IRS with respect to their proper characterization and treatment. Due to the absence of authorities on point, significant aspects of the U.S. federal income tax consequences of an investment in the Notes are not certain, and no assurance can be given that the IRS or any court will agree with the characterization and tax treatment described in this pricing supplement. Accordingly, you are urged to consult your tax advisor regarding all aspects of the U.S. federal income tax consequences of an investment in the Notes, including possible alternative characterizations.

Unless otherwise stated, the following discussion is based on the characterization described above. The discussion in this section assumes that there is a significant possibility of a significant loss of principal on an investment in the Notes.

We will not attempt to ascertain whether the issuer of any Underlying would be treated as a "passive foreign investment company" ("PFIC"), within the meaning of Section 1297 of the Code, or a United States real property holding corporation, within the meaning of Section 897(c) of the Code. If the issuer of any Underlying were so treated, certain adverse U.S. federal income tax consequences could possibly apply to a holder of the Notes. You should refer to information filed with the SEC by the issuers of the Underlyings and consult your tax advisor regarding the possible consequences to you, if any, if the issuer of any Underlying is or becomes a PFIC or is or becomes a United States real property holding corporation.

U.S. Holders

Although the U.S. federal income tax treatment of any Contingent Coupon Payment on the Notes is uncertain, we intend to take the position, and the following discussion assumes, that any Contingent Coupon Payment constitutes taxable ordinary income to a U.S. Holder at the time received or accrued in accordance with the U.S. Holder's regular method of accounting. By purchasing the Notes you agree, in the absence of an administrative determination or judicial ruling to the contrary, to treat any Contingent Coupon Payment as described in the preceding sentence.

Upon receipt of a cash payment at maturity or upon a sale, exchange, or redemption of the Notes prior to maturity, a U.S. Holder generally will recognize capital gain or loss equal to the difference between the amount realized (other than amounts representing any Contingent Coupon Payment, which would be taxed as described above) and the U.S. Holder's tax basis in the Notes. A U.S. Holder's tax basis in the Notes will equal the amount paid by that holder to acquire them. Subject to the discussion below concerning the possible application of the "constructive ownership" rules of Section 1260 of the Code, this capital gain or loss generally will be long-term capital gain or loss if the U.S. Holder held the Notes for more than one year. The deductibility of capital losses is subject to limitations.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Possible Application of Section 1260 of the Code. Since the Underlyings are the type of financial assets described under Section 1260 of the Code (including, among others, any equity interest in pass-through entities such as exchange traded funds, regulated investment companies, real estate investment trusts, partnerships, and passive foreign investment companies, each a "Section 1260 Financial Asset"), while the matter is not entirely clear, there may exist a risk that an investment in the Notes will be treated , in whole or in part, as a "constructive ownership transaction" to which Section 1260 of the Code applies. If Section 1260 of the Code applies, all or a portion of any long-term capital gain recognized by a U.S. Holder in respect of the Notes will be recharacterized as ordinary income (the "Excess Gain"). In addition, an interest charge will also apply to any deemed underpayment of tax in respect of any Excess Gain to the extent such gain would have resulted in gross income inclusion for the U.S. Holder in taxable years prior to the taxable year of the sale, exchange, redemption, or settlement (assuming such income accrued at a constant rate equal to the applicable federal rate as of the date of sale, exchange, redemption, or settlement).

If an investment in the Notes is treated as a constructive ownership transaction, it is not clear to what extent any long-term capital gain of a U.S. Holder in respect of the Notes will be recharacterized as ordinary income. It is possible, for example, that the amount of the Excess Gain (if any) that would be recharacterized as ordinary income in respect of the Notes will equal the excess of (i) any long-term capital gain recognized by the U.S. Holder in respect of the Notes and attributable to Section 1260 Financial Assets, over (ii) the "net underlying long-term capital gain" (as defined in Section 1260 of the Code) such U.S. Holder would have had if such U.S. Holder had acquired an amount of the corresponding Section 1260 Financial Assets at fair market value on the original issue date for an amount equal to the portion of the issue price of the Notes attributable to the corresponding Section 1260 Financial Assets and sold such amount of Section 1260 Financial Assets at maturity or upon sale, exchange or redemption of the Notes at fair market value. Unless otherwise established by clear and convincing evidence, the net underlying long-term capital gain is treated as zero and therefore it is possible that all long-term capital gain recognized by a U.S. Holder in respect of the Notes will be recharacterized as ordinary income if Section 1260 of the Code applies to an investment in the Notes. U.S. Holders should consult their tax advisors regarding the potential application of Section 1260 of the Code to an investment in the Notes.

As described below, the IRS, as indicated in Notice 2008-2 (the "Notice"), is considering whether Section 1260 of the Code generally applies or should apply to the Notes, including in situations where the Underlyings are not the type of financial asset described under Section 1260 of the Code.

Alternative Tax Treatments. Due to the absence of authorities that directly address the proper tax treatment of the Notes, prospective investors are urged to consult their tax advisors regarding all possible alternative tax treatments of an investment in the Notes. In particular, the IRS could seek to subject the Notes to the Treasury regulations governing contingent payment debt instruments. If the IRS were successful in that regard, the timing and character of income on the Notes would be affected significantly. Among other things, a U.S. Holder would be required to accrue original issue discount every year at a "comparable yield" determined at the time of issuance. In addition, any gain realized by a U.S. Holder at maturity or upon a sale, exchange, or redemption of the Notes generally would be treated as ordinary income, and any loss realized at maturity or upon a sale, exchange, or redemption of the Notes generally would be treated as ordinary loss to the extent of the U.S. Holder's prior accruals of original issue discount, and as capital loss thereafter.

In addition, it is possible that the Notes could be treated as a unit consisting of a deposit and a put option written by the Note holder, in which case the timing and character of income on the Notes would be affected significantly.

The Notice sought comments from the public on the taxation of financial instruments currently taxed as "prepaid forward contracts." This Notice addresses instruments such as the Notes. According to the Notice, the IRS and Treasury are considering whether a holder of an instrument such as the Notes should be required to accrue ordinary income on a current basis, regardless of whether any payments are made prior to maturity. It is not possible to determine what guidance the IRS and Treasury will ultimately issue, if any. Any such future guidance may affect the amount, timing and character of income, gain, or loss in respect of the Notes, possibly with retroactive effect.

The IRS and Treasury are also considering additional issues, including whether additional gain or loss from such instruments should be treated as ordinary or capital, whether foreign holders of such instruments should be subject to withholding tax on any deemed income accruals, whether Section 1260 of the Code, concerning certain "constructive ownership transactions," generally applies or should generally apply to such instruments, and whether any of these determinations depend on the nature of the underlying asset.

In addition, proposed Treasury regulations require the accrual of income on a current basis for contingent payments made under certain notional principal contracts. The preamble to the regulations states that the "wait and see" method of accounting does not properly reflect the economic accrual of income on those contracts, and requires current accrual of income for some contracts already in existence. While the proposed regulations do not apply to prepaid forward contracts, the preamble to the proposed regulations expresses the view that similar timing issues exist in the case of prepaid forward contracts. If the IRS or Treasury publishes future guidance requiring current economic accrual for contingent payments on prepaid forward contracts, it is possible that you could be required to accrue income over the term of the Notes.

It is also possible that the IRS could assert that your Notes should be treated as partially giving rise to "collectibles" gain or loss if you have held your Notes for more than one year, although we do not think such a treatment would be appropriate in this case because a sale, exchange, or redemption of the Notes is not a sale, exchange, or redemption of a collectible but is rather a sale, exchange, or redemption of a derivative contract that reflects the value, in part, of a collectible. "Collectibles" gain is currently subject to tax at marginal rates of up to 28%.

Because of the absence of authority regarding the appropriate tax characterization of the Notes, it is also possible that the IRS could seek to characterize the Notes in a manner that results in tax consequences that are different from those described above. For example, the IRS could possibly

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

assert that any gain or loss that a holder may recognize at maturity or upon the sale, exchange, or redemption of the Notes should be treated as ordinary gain or loss.

Non-U.S. Holders

Because the U.S. federal income tax treatment of the Notes (including any Contingent Coupon Payment) is uncertain, we (or the applicable paying agent) will withhold U.S. federal income tax at a 30% rate (or at a lower rate under an applicable income tax treaty) on the entire amount of any Contingent Coupon Payment made unless such payments are effectively connected with the conduct by the Non-U.S. Holder of a trade or business in the U.S. (in which case, to avoid withholding, the Non-U.S. Holder will be required to provide a Form W-8ECI). We (or the applicable paying agent) will not pay any additional amounts in respect of such withholding. To claim benefits under an income tax treaty, a Non-U.S. Holder must obtain a taxpayer identification number and certify as to its eligibility under the appropriate treaty's limitations on benefits article, if applicable. In addition, special rules may apply to claims for treaty benefits made by Non-U.S. Holders that are entities rather than individuals. The availability of a lower rate of withholding under an applicable income tax treaty will depend on whether such rate applies to the characterization of the payments under U.S. federal income tax laws. A Non-U.S. Holder that is eligible for a reduced rate of U.S. federal withholding tax pursuant to an income tax treaty may obtain a refund of any excess amounts withheld by filing an appropriate claim for refund with the IRS.

Except as discussed below, a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax for amounts paid in respect of the Notes (not including, for the avoidance of doubt, amounts representing any Contingent Coupon Payment which would be subject to the rules discussed in the previous paragraph) upon the sale, exchange, or redemption of the Notes or their settlement at maturity, provided that the Non-U.S. Holder complies with applicable certification requirements and that the payment is not effectively connected with the conduct by the Non-U.S. Holder of a U.S. trade or business. Notwithstanding the foregoing, gain from the sale, exchange, or redemption of the Notes or their settlement at maturity may be subject to U.S. federal income tax if that Non-U.S. Holder is a non-resident alien individual and is present in the U.S. for 183 days or more during the taxable year of the sale, exchange, redemption, or settlement and certain other conditions are satisfied.

If a Non-U.S. Holder of the Notes is engaged in the conduct of a trade or business within the U.S. and if any Contingent Coupon Payment and gain realized on the settlement at maturity, or upon sale, exchange, or redemption of the Notes, is effectively connected with the conduct of such trade or business (and, if certain tax treaties apply, is attributable to a permanent establishment maintained by the Non-U.S. Holder in the U.S.), the Non-U.S. Holder, although exempt from U.S. federal withholding tax, generally will be subject to U.S. federal income tax on such Contingent Coupon Payment and gain on a net income basis in the same manner as if it were a U.S. Holder. Such Non-U.S. Holders should read the material under the heading "-U.S. Holders," for a description of the U.S. federal income tax consequences of acquiring, owning, and disposing of the Notes. In addition, if such Non-U.S. Holder is a foreign corporation, it may also be subject to a branch profits tax equal to 30% (or such lower rate provided by any applicable tax treaty) of a portion of its earnings and profits for the taxable year that are effectively connected with its conduct of a trade or business in the U.S., subject to certain adjustments.

A "dividend equivalent" payment is treated as a dividend from sources within the United States and such payments generally would be subject to a 30% U.S. withholding tax if paid to a Non-U.S. Holder. Under Treasury regulations, payments (including deemed payments) with respect to equity-linked instruments ("ELIs") that are "specified ELIs" may be treated as dividend equivalents if such specified ELIs reference an interest in an "underlying security," which is generally any interest in an entity taxable as a corporation for U.S. federal income tax purposes if a payment with respect to such interest could give rise to a U.S. source dividend. However, IRS guidance provides that withholding on dividend equivalent payments will not apply to specified ELIs that are not delta-one instruments and that are issued before January 1, 2027. Based on our determination that the Notes are not delta-one instruments, Non-U.S. Holders should not be subject to withholding on dividend equivalent payments, if any, under the Notes. However, it is possible that the Notes could be treated as deemed reissued for U.S. federal income tax purposes upon the occurrence of certain events affecting the Underlyings or the Notes, and following such occurrence the Notes could be treated as subject to withholding on dividend equivalent payments. Non-U.S. Holders that enter, or have entered, into other transactions in respect of the Underlyings or the Notes should consult their tax advisors as to the application of the dividend equivalent withholding tax in the context of the Notes and their other transactions. If any payments are treated as dividend equivalents subject to withholding, we (or the applicable paying agent) would be entitled to withhold taxes without being required to pay any additional amounts with respect to amounts so withheld.

As discussed above, alternative characterizations of the Notes for U.S. federal income tax purposes are possible. Should an alternative characterization, by reason of change or clarification of the law, by regulation or otherwise, cause payments as to the Notes to become subject to withholding tax in addition to the withholding tax described above, tax will be withheld at the applicable statutory rate. Prospective Non-U.S. Holders should consult their own tax advisors regarding the tax consequences of such alternative characterizations.

U.S. Federal Estate Tax. Under current law, while the matter is not entirely clear, individual Non-U.S. Holders, and entities whose property is potentially includible in those individuals' gross estates for U.S. federal estate tax purposes (for example, a trust funded by such an individual and with respect to which the individual has retained certain interests or powers), should note that, absent an applicable treaty benefit, a Note is likely to be treated as U.S. situs property, subject to U.S. federal estate tax. These individuals and entities should consult their own tax advisors regarding the U.S. federal estate tax consequences of investing in a Note.

Backup Withholding and Information Reporting

Please see the discussion under "U.S. Federal Income Tax Considerations - General - Backup Withholding and Information Reporting" in the

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

accompanying prospectus for a description of the applicability of the backup withholding and information reporting rules to payments made on the Notes.

Contingent Income Issuer Callable Yield Notes Linked to the Least Performing of the KraneShares CSI China Internet ETF, the VanEck^® Semiconductor ETF and the iShares^® Silver Trust

Where You Can Find More Information

The terms and risks of the Notes are contained in this pricing supplement and in the following related product supplement, prospectus supplement and prospectus, which can be accessed at the following links:

This pricing supplement and the accompanying product supplement, prospectus supplement and prospectus have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website at www.sec.gov or obtained from BofAS by calling 1-800-294-1322. Before you invest, you should read this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for information about us, BAC and this offering. Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus. Certain terms used but not defined in this pricing supplement have the meanings set forth in the accompanying product supplement or prospectus supplement. Unless otherwise indicated or unless the context requires otherwise, all references in this document to "we," "us," "our," or similar references are to BofA Finance, and not to BAC.

The Notes are our senior debt securities. Any payments on the Notes are fully and unconditionally guaranteed by BAC. The Notes and the related guarantee are not insured by the Federal Deposit Insurance Corporation or secured by collateral. The Notes will rank equally in right of payment with all of our other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law. The related guarantee will rank equally in right of payment with all of BAC's other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law, and senior to its subordinated obligations. Any payments due on the Notes, including any repayment of the principal amount, will be subject to the credit risk of BofA Finance, as Issuer, and BAC, as Guarantor.