@jkblaw.bsky.social
RIP to the mailbox rule
As of 12/24/25, USPS changed policy on when they postmark mail. Mail dropped off is no longer guaranteed a same-day postmark. Tax returns & other time-sensitive items are now stamped when they reach a regional processing center, which may be days later. Plan deadlines accordingly to avoid penalties.
USPS Announces Changes to the Postmark Date System
The United States Postal Service (USPS) has adopted a final rule (FR Doc.
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December 30, 2025 at 12:29 AM
RIP to the mailbox rule