Santander Drive Auto Receivables LLC

12/15/2025 | Press release | Distributed by Public on 12/15/2025 05:25

Asset-Backed Issuer Distribution Report (Form 10-D)

Santander Drive Auto Receivables Trust 2021-1

Class A-1 0.15838% Asset Backed Notes

Class A-2 0.29% Asset Backed Notes

Class A-3 0.32% Asset Backed Notes

Class B 0.50% Asset Backed Notes

Class C 0.75% Asset Backed Notes

Class D 1.13% Asset Backed Notes

Class E 2.51% Asset Backed Notes

Servicer's Certificate

This Servicer's Certificate has been prepared pursuant to Section 4.6 of the Sale and Servicing Agreement among Santander Drive Auto Receivables Trust 2021-1, as Issuer, Santander Consumer USA Inc. as Servicer, Santander Drive Auto Receivables LLC, as Seller, and Wells Fargo Bank, National Association, as Indenture Trustee, dated as of February 17, 2021. Defined terms have the meanings assigned to them in the Sale and Servicing Agreement or in other Transaction Documents.

Collection Period Beginning:

11/01/2025

Collection Period Ending:

11/30/2025

Previous Payment/Close Date:

11/17/2025

Payment Date

12/15/2025

Days of Interest for Period:

28

Days in Collection Period:

30

Months Seasoned:

58

Purchases

Units Cut-off Date Closing
Date
Original
Pool Balance

Initial Purchase

99,801 01/31/2021 02/17/2021 2,215,048,851.83

Total

99,801 2,215,048,851.83

I. PRINCIPAL BALANCE CALCULATION

{1} Beginning of period aggregate Principal Balance

{1} 119,288,871.44

{2} Payments Received

{2} 8,681,712.17

{3} Repurchased Receivables

{3} 6,539.20

{4} Defaulted Receivables

{4} 1,209,234.12

{5} Cram Down Losses and Other Principal Adjustments

{5} (12,192.57 )

{6} Other Receivables adjustments

{6} - 

{7} Total Principal distributable amount

{7} 9,885,292.92

{8} End of period aggregate Principal Balance

{8} 109,403,578.52

{9} Pool Factor

{9} 0.049391

II. NOTE BALANCE CALCULATION

Class A-1 Class A-2 Class A-3 Class B Class C Class D Class E Total

{10} Original Note Balance

{10} 224,000,000.00 600,000,000.00 279,090,000.00 199,360,000.00 320,080,000.00 274,660,000.00 162,810,000.00 2,060,000,000.00

{11} Beginning of period Note Balance

{11} -  -  -  -  -  -  73,537,807.16 73,537,807.16

{12} First Allocation of Principal

{12} -  -  -  -  -  -  -  - 

{13} Second Allocation of Principal

{13} -  -  -  -  -  -  -  - 

{14} Third Allocation of Principal

{14} -  -  -  -  -  -  -  - 

{15} Fourth Allocation of Principal

{15} -  -  -  -  -  -  -  - 

{16} Fifth Allocation of Principal

{16} -  -  -  -  -  -  -  - 

{17} Regular Allocation of Principal

{17} -  -  -  -  -  -  8,847,337.16 8,847,337.16

{18} Optional Purchase payment

{18} -  -  -  -  -  -  64,690,470.00 64,690,470.00

{19} End of period Note Balance

{19} -  -  -  -  -  -  -  - 

{20} Note Pool Factors

{20} -  -  -  -  -  -  -  - 

{21} Principal payment per $1,000

{21} -  -  -  -  -  -  451.68 35.70

III. RECONCILIATION OF COLLECTION ACCOUNT

Available Funds

{22} Principal Payments Received

{22} 8,681,712.17

{23} Net Liquidation Proceeds

{23} 706,603.09

{24} Principal on Repurchased Receivables

{24} 6,539.20

{25} Interest on Repurchased Receivables

{25} (5.19 )

{26} Interest collected on Receivables

{26} 1,356,235.01

{27} Other amounts received

{27} 13,935.22

{28} Optional Purchase Price

{28} 109,403,578.52

{29} Reserve Account Excess Amount

{29} 33,225,732.78

{30} Reserve Account Draw Amount

{30} - 

{31} Total Available Funds

{31} 153,394,330.80

Distributions

{32} Indenture Trustee Fee

{32} - 

{33} Owner Trustee Fee

{33} - 

{34} Asset Representations Reviewer Fee

{34} - 

Servicing Fee

Calculated Fee Carryover
Shortfall
Change from
prior period
Total

{35}

298,222.18 -  -  298,222.18 {35} 298,222.18

Class A Accrued Note Interest

Class Beginning
Note Balance
Interest Rate Days Days Basis Calculated
Interest

{36}

Class A-1 -  0.15838 % 28 ACT/360 -  {36} - 

{37}

Class A-2 -  0.29 % 30 30 / 360 -  {37} - 

{38}

Class A-3 -  0.32 % 30 30 / 360 -  {38} - 

Class A Accrued Note Interest

Class Carryover
Shortfall
Change from
prior period
Carryover
Shortfall per
$1,000

{39}

Class A-1 -  -  -  {39} - 

{40}

Class A-2 -  -  -  {40} - 

{41}

Class A-3 -  -  -  {41} - 

{42} First Allocation of Principal

{42} - 

Class B Accrued Note Interest

Class Beginning
Note Balance
Interest Rate Days Days Basis Calculated
Interest

{43}

Class B -  0.50 % 30 30 / 360 -  {43} - 

Class B Accrued Note Interest

Class Carryover
Shortfall
Change from
prior period
Carryover
Shortfall per
$1,000

{44}

Class B -  -  -  {44} - 

{45} Second Allocation of Principal

{45} - 

Class C Accrued Note Interest

Class

Beginning
Note Balance
Interest Rate Days Days
Basis
Calculated
Interest

{46}

Class C -  0.75 % 30 30 / 360 -  {46} - 

Class C Accrued Note Interest

Class

Carryover
Shortfall
Change from
prior period
Carryover
Shortfall
per $1,000

{47}

Class C -  -  -  {47} - 

{48} Third Allocation of Principal

{48} - 

Class D Accrued Note Interest

Class

Beginning
Note Balance
Interest Rate Days Days
Basis
Calculated
Interest

{49}

Class D -  1.13 % 30 30 / 360 -  {49} - 

Class D Accrued Note Interest

Class

Carryover
Shortfall
Change from
prior period
Carryover
Shortfall
per $1,000

{50}

Class D -  -  -  {50} - 

{51} Fourth Allocation of Principal

{51} - 

Class E Accrued Note Interest

Class

Beginning
Note Balance
Interest Rate Days Days
Basis
Calculated
Interest

{52}

Class E 73,537,807.16 2.51 % 30 30 / 360 153,816.58 {52} 153,816.58

Class E Accrued Note Interest

Class

Carryover
Shortfall
Change from
prior period
Carryover
Shortfall
per $1,000

{53}

Class E -  -  -  {53} - 

{54} Fifth Allocation of Principal

{54} - 

{55} Reserve Account deposit

{55} - 

{56} Regular Allocation of Principal

{56} 8,847,337.16

{57} Optional Purchase Amount

{57} 64,690,470.00

{58} Distribution to Residual Interestholder

{58} 79,404,484.88

{59} Total Distribution Amount

{59} 153,394,330.80

IV. RECONCILIATION OF RESERVE ACCOUNT

{60} Beginning of period Reserve Account balance

{60} 33,225,732.78

{61} Deposit to Reserve Account

{61} - 

{62} Release from Reserve Account

{62} (33,225,732.78 )

{63} End of period Reserve Account balance

{63} - 

{64} Specified Reserve Account Balance (1.50% of the Pool Balance as of the Cut-Off Date)

{64} 33,225,732.78

{65} Change in Reserve Account balance from prior period

{65} (33,225,732.78 )

V. OVERCOLLATERALIZATION

{66} Targeted Overcollateralization equal to the sum of:

{66} 44,713,108.52

{67} (a) Prior to the Class A-2 Notes being paid in full, 11.50% of the Principal Balance of the Receivables at the end of the Collection Period

{67} NA

{68} (a) Following the Class A-2 Notes having been paid in full, 10.5% of the Principal Balance of the Receivables at the end of the Collection Period and

{68} 11,487,375.74

{69} (b) 1.50% of the Principal Balance of the Receivables as of the Cut-off Date

{69} 33,225,732.78

{70} End of period Principal Balance of the Receivables

{70} 109,403,578.52

{71} End of period Note Balance

{71} - 

{72} Overcollateralization amount at the end of the Collection Period

{72} 109,403,578.52

{73} Overcollateralization % at the end of the Collection Period

{73} 100.00 %

VI. STATISTICAL DATA

Original Previous Current

{74} Principal Balance of the Receivables

{74} 2,215,048,851.83 119,288,871.44 109,403,578.52

{75} Weighted average coupon of the Receivables

{75} 14.84 % 14.35 % 14.37 %

{76} Weighted average original term of the Receivables

{76} 71.07 72.39 72.42

{77} Weighted average remaining term of the Receivables

{77} 67.04 15.92 15.13

{78} Number of Receivables

{78} 99,801 17,665 16,919

VII. DELINQUENCY

Units Dollars Percentage

Receivables with Scheduled Payment Delinquent

{79} 31-60 days

{79} 2,113 17,808,979.83 16.28 %

{80} 61-90 days

{80} 1,102 9,877,642.89 9.03 %

{81} 91-120 days

{81} 282 2,474,637.06 2.26 %

{82} 121 + days delinquent

{82} -  -  0.00 %

{83} Total

{83} 3,497 30,161,259.78 27.57 %

{84} Aggregate Principal Balance of 60 Day Delinquent Receivables (all Receivables that are 60 or more days delinquent as of End of Collection Period)

{84} 13,234,291.47

{85} Delinquency Percentage as of the End of the Collection Period

{85} 12.10 %

{86} Delinquency Trigger

{86} 24.00 %

{87} Delinquency Trigger Occurred

{87} No

VIII. REPOSSESSION INVENTORY

Units Dollars

{88} Beginning of period Repossessed Inventory

{88} 143 1,673,502.23

{89} Vehicles Repossessed in current period

{89} 129 1,414,188.83

{90} Repossessed vehicles sold in current period

{90} 77 872,939.83

{91} Repossessed vehicles reinstated in current period

{91} 27 249,983.44

{92} Repossessed vehicle adjustment in current period

{92} -  (0.00 )

{93} End of period Repossessed Inventory

{93} 168 1,964,767.79

IX. CUMULATIVE NET LOSS RATIO

Units (a) Dollars (a)

{94} Receivables becoming Defaulted Receivables during period

{94} 135 1,209,234.12

{95} Cram Down Losses occurring during period

{95} 7 (12,192.57 )

{96} Net Liquidation Proceeds collected during period

{96} 642 706,603.09

{97} Net losses during period

{97} 490,438.46

(a) Unit count represents # instances in period per loan per line item

Net Loss
for Period
Avg. Portfolio
Balance (b)
Net Loss
Ratio (c)

{98} Current Period Net Loss Ratio

{98} 490,438.46 114,346,224.98 0.43 %

{99} Prior Period Net Loss Ratio

{99} 819,693.26 124,921,905.18 0.66 %

{100} Second Prior Period Net Loss Ratio

{100} 178,289.40 136,030,701.22 0.13 %

{101} Third Prior Period Net Loss Ratio

{101} 168,976.80 147,318,600.04 0.11 %

{102} Rolling 3 prior month average Net Loss Ratio

{102} 0.30 %

(b) Average Portfolio Balance calculated using (Beginning of Period Aggregate Balance + End of Period Aggregate Balance)/2

(c) Net Loss Ratio calculated using Net Loss for Period/Average Portfolio Balance for Period

{103} Cumulative Net losses since Cut-off Date (beginning of period)

{103} 107,581,950.70

{104} Net losses during period

{104} 490,438.46

{105} Other Adjustments

{105} - 

{106} Cumulative Net losses since Cut-off Date (end of period)

{106} 108,072,389.16

{107} Cumulative Net Loss Ratio (Net losses since the Cut-off Date / Pool Balance as of the Cut-off Date)

{107} 4.88 %

IN WITNESS WHEREOF, the undersigned has duly executed and delivered this monthly Statement to Noteholders as dated below.

Santander Consumer USA Inc., as Servicer

By:

/s/ Craig Shmoldas

Name: Craig Shmoldas
Title: Senior Vice President
Date: December 10, 2025
Santander Drive Auto Receivables LLC published this content on December 15, 2025, and is solely responsible for the information contained herein. Distributed via Edgar on December 15, 2025 at 11:25 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]