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Safe Mailing Tips: Navigating the USPS Rule Change for Tax Returns

The End of the "Mailbox Rule"?

Historically, under Internal Revenue Code Section 7502, taxpayers relied on the "timely mailing is timely filing" principle. Dropping your envelope in the post office box by the deadline guaranteed you were legally covered, regardless of IRS processing delays.

Home office desk showing tax preparation

However, a major USPS policy change implemented on December 24, 2025, now threatens this long-standing protection. Navigating these new mailing logistics is vital to avoid unexpected late penalties. Need help ensuring compliance? Contact our tax planning professionals today.

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