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Montana registration starts closing Mon Oct 5.

Starts closing Mon Oct 5

OnlineNot offeredBy mailPostmarked Mon Oct 5In personAfter Oct 5, late registration in person at the county election office only (end date affected by ongoing litigation; confirm with your county)

Source: sosmt.gov · checked Sep 21, 2026

Check my registrationRegister on Vote.org

A student?

Register at school or at home, not both.

The form wants the building you sleep in, not your campus mailbox.

A parent, aunt, uncle?

Students ignore ads. They ignore you too, but less.

Get the text to send

On the move?

Your deadline belongs to your home state, not the parking lot you're texting from.

Voting by mail from elsewhere? Your absentee request deadline matters more. Find it at Vote.org, or FVAP.gov if you're overseas.