Welcome Montana voters! Below you will find your upcoming election dates, voter registration deadlines, state requirements for Voter ID, as well as information on online voter registration, automatic voter registration, vote-by-mail, early voting, and minor pre-registration.


Primary Election Dates & Registration Deadlines

Party Primaries
Registration Deadlines
Same Day Registration
Mail-In Online In-Person
June 5 May 7 (postmarked) N/A June 5 Yes


General Election Dates & Registration Deadlines

General Election Registration Deadlines
Same Day Registration
Mail-In Online In-Person
November 6 October 9 (postmarked) N/A November 6 Yes


Online Voter Registration

Montana does not have online voter registration, but a voter can complete a printable form online and then print, sign, and submit it. You can complete the PDF here.

Voter ID

Strict = if no identification, voter must take additional measures after Election Day to have ballot counted

Non-strict = if no identification, voter still has option to cast ballot that may be counted without additional measures by voter


Montana has non-strict, non-photo ID requirements. Here are the approved forms of ID in the state of Montana:

  • Photo ID showing the elector’s name
  • Utility bill
  • Bank statement
  • Paycheck
  • Voter registration confirmation
  • Government check
  • Other government document showing the elector’s current name and current address must be presented


Montana does have “no-excuse” vote-by-mail. Your ballot request must be received by 12:00 p.m. the day before Election Day (that late would need to pick up or return in person). Your ballot must be received by 8:00 p.m. on Election Day.

Early Voting

Montana has in-person early voting. Early voting begins as soon as ballots are available but no later than 30 days prior to Election Day (“in-person absentee” rather than “early” voting) and ends the day prior to Election Day. Early voting is located at County Election Offices. More information early voting is available here.

Automatic Voter Registration (Motor Voter)

Montana has no Automatic Voter Registration.

Minor Pre-Registration

No specific provision. Contact your state election officials for details.

Links to State-by-State Charts

2018 Election Dates & Deadlines

Online Voter Registration

Automatic Voter Registration

Vote By Mail

Early Voting

Voter ID

Content Updated Summer 2018


Voting Rights Updates

Get the latest updates on the ongoing struggle to defend voting rights and make it easier to vote.