Voting Rules in Montana

Source: sosmt.gov · Last verified May 2026
Voter ID Requirement
Non-Strict Non-Photo ID

ID requested; non-photo accepted. Voters without ID may have another registered voter vouch for them.

Mail-In Ballot Eligibility
No Excuse Required

Any registered voter may request an absentee ballot. Permanent absentee lists available.

Early Voting
Available

In-person absentee voting available 30 days before Election Day.

Registration Deadline
30 Days Before Election Day (Online/Mail); Election Day Registration Available

Voter registration must be completed by October 4, 2026. Online registration is available.

Same-Day Registration
Yes

Election Day registration available at county election offices.

Polling Hours
7:00 AM – 8:00 PM

Polls are open from 7:00 AM – 8:00 PM on Election Day. If you are in line when polls close you are entitled to vote.

Candidates on the Ballot

Sources: Ballotpedia · Official state election filings

Candidate data will be added as 2026 races are formally declared.

Check back as filing deadlines approach · sosmt.gov

Upcoming Election Dates

Jun2
Primary Election Day
Republican and Democratic primaries · Determines nominees for the General Election
Upcoming
Oct4
Voter Registration Deadline
Last day to register for the November 2026 General Election · 30 days before Election Day (online/mail); Election Day registration available
Upcoming
Nov3
General Election Day
Polls open 7:00 AM – 8:00 PM · If you are in line when polls close you are entitled to vote
Upcoming

Polling Place Finder

Powered by Google Civic Information API · Official government data

Enter Your Address

Find your assigned polling location, hours, and early voting sites. Data is pulled directly from official government sources via the Google Civic Information API.

Powered by Google Civic Information API · Data sourced from official government records

Register to Vote in Montana

Source: votemt.gov

Official Montana Voter Registration

Register online, by mail, or in person at your local election office. You must be a U.S. citizen, a Montana resident, and at least 18 years old by Election Day.

Register at votemt.gov →
Deadline: 30 days before Election Day (online/mail); Election Day registration available
Online: Yes — votemt.gov/voter-registration
By Mail: Yes — received by deadline
In Person: Yes
Same-Day Reg: Yes
Citizenship: U.S. Citizen required