Protect Your Timely Filing: Safe Mailing Tips for Tax Returns

Is Your Mailed Tax Return Truly on Time?

For years, Californians and taxpayers nationwide trusted the "Mailbox Rule." Under Internal Revenue Code Section 7502, simply dropping your return in the mail by tax day meant it was legally filed on time—even if the IRS processed it weeks later.

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However, a critical United States Postal Service (USPS) rule change implemented on December 24, 2025, threatens that long-standing protection. If you still mail paper returns, your "timely filing" status might now be at risk.

Don't risk late filing penalties over a post office technicality. Reach out to the team at Christiansen Accounting to ensure your returns are filed securely and correctly.

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