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Elections / Voter information

Voter information

How to register, how to check what is already on file, and which official office answers for it, in every state and the District of Columbia.

How to register in Montana

The channels this state runs, the cutoff rule for each one, and the official page that does it.

Three ways to register

Each cutoff below is Montana's own rule, counted back from Election Day - not a date. The date it lands on depends on the election, so confirm it for yours on Montana's registration page.

OnlineNot offeredMontana does not offer online registration. Use the mail or in-person route instead.
By mailMust be postmarked 30 days before Election DayPrint Montana's registration form, sign it, and mail it to your election office.Get Montana's form
In personAvailable up to and including on Election DayRegister at your state or local election office, the motor vehicles office, or many public assistance offices.Where to go

Same-day registration: you can still register in person through Election Day.

Check or update your registration

Already registered? Check your name, address and any recorded party affiliation before the deadline.

Check your Montana registration

Official resources

Sourced from the offices that run the election. Deadlines for a specific election, sample ballots, and polling places all live with them.

Registration channels, cutoff rules, and official links on this page are read from vote.gov's Montana page, last updated November 18, 2024. Cutoffs are stated as Montana's rule relative to Election Day; for the calendar date in a particular election, and for anything a rule change may have moved since that stamp, the Montana election office is authoritative.