2026 voter guide
MT
How to vote in Montana in 2026
Every deadline, rule, and official link — kept simple. When you're ready, build a personal plan with calendar reminders in about a minute.
Key dates
- State Primary
- Tuesday, June 2, 2026
- General Election
- Tuesday, November 3, 2026
- Register by mail by
- Monday, October 5, 2026(postmarked)
- Register in person by
- Tuesday, November 3, 2026
- Request a mail ballot by
- Monday, November 2, 2026
Deadlines shown are for the November 3, 2026 general election.
Subscribe to these deadlines
One tap adds every Montana deadline to your calendar — and when rules change, the dates update on their own. No account, no email.
Register to vote
By mail: Postmarked 30 days before Election Day and received 27 days before Election Day. In person: Noon, the day before Election Day. Same-day registration available.
By mail
Print, sign, and mail the National Mail Voter Registration Form.
In person
At your local election office — or same-day at the polls.
Already registered? Double-check.
Vote by mail
Any registered voter can vote by mail in Montana. Received by noon, 1 day before before Election Day, but we recommend applying at least 7 days before Election Day
Returning it: Received by 8pm on Election Day.
Vote in person
Early voting
OfferedNo-excuse in-person absentee voting at your county election office starts Friday, October 9, 2026.
On Election Day — Tuesday, November 3, 2026 — vote at your assigned polling place or vote center.
On your 2026 ballot
No statewide measures are certified for Montana's 2026 ballot yet — states keep adding them through early September.
All 2026 ballot measures, state by state →
Statewide measures only, from Ballotpedia's certified list (checked Jul 6, 2026). Local measures appear on your county sample ballot.
Quick answers
Can I register to vote online in Montana?
No — Montana doesn't offer online registration. You can register by mail with the national form, or in person at your local election office.
Do I need an excuse to vote by mail?
No — any registered voter in Montana can request a mail ballot, no excuse needed.
Can I register on Election Day?
Yes — Montana offers same-day registration. By mail: Postmarked 30 days before Election Day and received 27 days before Election Day. In person: Noon, the day before Election Day. Same-day registration available.
When are the 2026 elections?
State Primary: Tuesday, June 2, 2026 · General Election: Tuesday, November 3, 2026
Turn this into your plan
Three questions, then every Montana deadline lands on your calendar with reminders.
Make your voting planCompiled from official state sources, vote.gov, and Ballotpedia (2026 calendars). Rules occasionally change — when it matters, confirm with the Montana election office. Found an error? Tell us.