What to know about USPS postmark changes and the impact on bills, taxes and election ballots

How changes to USPS postmarks could impact your tax returns, bills and more

USPS clarifies postmark rules that could affect mail deadlines

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A new U.S. Postal Service rule will affect the postmark dates on your mail

Some customers may not receive USPS same-day postmark. Here's how to make sure you get it

ABC World News Tonight on Instagram: "The U.S. Postal Service is rolling out changes for postmarks in the new year — clarifying the new rules saying postmarks will be added when an envelope is processed rather than the day that it gets submitted. @whitjohnsontv reports."