Late postmarks can put mailed ballots at risk

Why a late postmark matters

A voter may place a completed ballot in the mail close to Election Day, but that does not ensure the envelope will be postmarked immediately. The postmark is applied through postal processing and can show a later date than the day the voter deposited the ballot.

That difference matters when ballot acceptance depends on the postmark date. If the postmark falls after the required deadline, the ballot may be rejected even if the voter believed it was mailed on time. A voter’s intended mailing date does not change the date recorded on the envelope.

Mail pickup and processing time are therefore part of the voting timeline for anyone returning a ballot by mail. Waiting until Election Day, especially until late in the day, leaves less time for the envelope to enter processing and receive the needed postmark.

Steps voters can take

Voters returning ballots by mail should allow time before Election Day for pickup and postal processing. Depositing a ballot in a mailbox on Election Day should not be treated as a guarantee that it will carry an Election Day postmark.

Ballot instructions should be reviewed before the envelope is mailed. Voters who are close to the deadline should check with their election office about the applicable deadline and any accepted return methods rather than assuming a mailed ballot will qualify.

The key distinction is between when a voter places a ballot in the mail and the date postal processing records on it. Mailing earlier reduces the risk that those dates will differ in a way that causes rejection.