Starting December 24, 2025, the United States Postal Service is making significant postmark changes. Here’s how this could impact your tax filings and how to protect your interests.
What’s Happening
The USPS is modernizing its mail processing system, which will change how postmarks are applied and dated on mail. This directly affects the IRS rule that allows taxpayers to meet filing deadlines based on the postmark date rather than when the IRS actually receives your documents.
Why This Matters to You
For years, the IRS has accepted the “timely mailing as timely filing” rule, meaning if your tax return or payment is postmarked by the deadline, you’re in compliance even if it arrives later. The new USPS system could affect how these postmarks work, potentially creating complications for deadline-sensitive filings.
How We’re Preparing
Our firm is taking proactive steps to ensure your filings remain compliant:
- We’re adjusting our internal deadlines to build in additional mailing time
- We’re reviewing all mail procedures to align with the new system
- We’re monitoring IRS guidance closely for any updates or clarifications
- For critical filings, we’re recommending certified mail to provide proof of timely mailing
What You Should Do
- Plan ahead: Get your tax documents to us earlier than usual, especially for deadlines in early 2026
- Consider e-filing: Where possible, we’ll recommend electronic filing to avoid postmark issues entirely
- Stay in communication: Let us know immediately if you have deadline-sensitive matters after December 24
We’re committed to navigating these changes seamlessly on your behalf. If you have questions or concerns about how these postmark changes might affect your specific situation, please don’t hesitate to reach out to us.
For tailored guidance, get in touch with us here or at [email protected].
