MT
Same-Day Registration
Montana Registration Deadlines
Montana offers same-day voter registration. You can register and vote on Election Day.
Online
30 days before election
30 days before election
Postmarked by deadline
In-Person
Election Day
Same-day registration available
Upcoming Elections in Montana
2026 Primary Elections
99 days
Tuesday, June 2, 2026
Online: May 3
Mail: May 3
2026 Midterm Elections
253 days
Tuesday, November 3, 2026
Online: Oct 4
Mail: Oct 4
Official Information
Montana Voter Registration
Last updated: January 15, 2025
Related Resources
Ready to Register?
Visit your state's official election website to register to vote or check your registration status.
Register NowMontana Features
Same-day registration available
No automatic registration
Online registration available