USPS Postmark Changes Are Here — and They Matter for IRS Deadlines (A Lot) If you’ve ever relied on “the mailbox rule” for a tax return, a Tax Court petition, or a last-minute payment (because you enjoy adrenaline and consequences), there’s a new wrinkle you need to know. As of December 24, 2025, the U.S. Postal Service added Domestic Mail Manual (DMM) § 608.11, “Postmarks and Postal Possession,” which formally clarifies what a USPS postmark date does—and does not—prove. Fe

ennessee taxpayers impacted by the April 2025 storms now have until November 3, 2025, to file federal tax returns and make payments. This IRS relief applies to individuals and businesses statewide and includes extensions for income taxes, estimated payments, and payroll returns. Special provisions cover casualty losses, retirement distributions, and penalty waivers. ExFed Tax can help you make sense of it all—because we used to be the IRS.

If you're sitting on an old shoebox full of unopened IRS mail and thinking, "I never filed my taxes, but I’ll get around to it... someday," this is your wake-up call. The IRS refund statute of limitations doesn’t wait around forever—and neither will your money.