New USPS Postmark Policy May Affect Legal Filing Deadlines, Warn Ann Arbor Probate Attorneys

ANN ARBOR, Mich. - EntSun -- A recent policy change implemented by the United States Postal Service could impact how postmark dates are assigned to outgoing mail—potentially affecting time-sensitive legal filings.

Beginning in December 2025, USPS introduced Rule 608.11, which shifts postmarking responsibilities from local post offices to regional processing centers. Because mail may take additional time to reach those facilities, documents mailed on a particular day may receive a postmark dated one or more days later.

Pear Sperling Eggan & Daniels, P.C. probate attorneys in Ann Arbor (https://www.psedlaw.com/learn/more/new-usps-rul...) warn that this change may create complications for documents where the postmark determines whether a filing is considered timely.

"For many legal matters, including probate proceedings, the postmark date can serve as proof that documents were mailed before a required deadline," the firm explains. "If a postmark is applied later than expected, it could raise questions about whether the filing was submitted on time."

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Individuals sending time-sensitive documents are encouraged to plan ahead and consider visiting their local post office to request a manual timestamp or use certified or registered mail for documentation.

Pear Sperling Eggan & Daniels, P.C. helps individuals and families navigate probate proceedings, estate administration requirements, and filing deadlines. If you have questions about probate filings or estate administration timelines you should seek legal guidance to ensure all documentation is handled properly and submitted within required timeframes.

About Pear Sperling Eggan & Daniels, P.C.: Pear Sperling Eggan & Daniels, P.C. is one of the oldest law firms in Washtenaw County, Michigan. Founded in 1948, Pear Sperling has adapted with the ever-changing needs of clients and flourished into a well-respected and successful law firm, trusted by clients, judges and other attorneys. Top Rated Michigan Superlawyers^®, AV^® rated, and their attorneys are held to the highest rating possible based on peer review. https://www.psedlaw.com