Iowa Department of Revenue
04/03/2026 | Press release | Distributed by Public on 04/03/2026 12:53
USPS Postmark Changes: Impact on Filing and Payment Deadlines
The Iowa Department of Revenue has released new guidance related to the following:
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USPS Postmark Changes: Impact on Filing and Payment Deadlines
The United States Postal Service (USPS) updated its Domestic Mail Manual, effective December 24, 2025. This guidance explains how recent changes to USPS postmark policies may affect the timeliness of mailed returns, payments, and appeals.
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Iowa Department of Revenue published this content on April 03, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 03, 2026 at 18:53 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 If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]