Mastodawn

Hey, #US public announcement: #Tax filing is almost upon us. If you are mailing dead trees to the #IRS, Thursday the 9th is your last day to drop it in the postal box and have it delivered in time, according to the Postal Service. (#USPS)

If mailing after the 9th, you need to go to the post office, and go to a clerk and have it manually postmarked, so as to avoid kerfuffle and fines in the future.

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J Ryan 1d ago

@MissConstrue a small edit to this excellent advice: the Post Office has changed how they apply postmarks. It is not when you hand the mail to the clerk, but when the item enters the mail handling system. Yes, this does affect vote-by-mail. Please note that the language in this source is designed to be confusing: https://about.usps.com/postal-bulletin/2026/pb22694/html/updt_002.htm

DMM Revision: Postmarks and Postal Possession

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J Ryan

@MissConstrue this source is clearer: https://www.currentfederaltaxdevelopments.com/blog/2025/12/8/usps-changes-to-postmark-date-system-taking-effect-december-24-2025

USPS Changes to Postmark Date System Taking Effect December 24, 2025 — Current Federal Tax Developments

Summary of the Final Rule The United States Postal Service (USPS) has adopted a final rule ( FR Doc. 2025-20740 ) adding Section 6 08.11, "Postmarks and Postal Possession," to the Domestic Mail Manual (DMM). The rule formally defines postmarks and identifies the types of markings that qu

Current Federal Tax Developments