Montana Election Dates and Deadlines
Welcome to the Montana Election Dates and Deadlines listing from U.S. Vote Foundation.
Here you can find out when Montana elections will be held at the local, state and federal election level. There are many different deadlines associated with Montana elections, such as voter registration deadlines, absentee ballot request and ballot return deadlines, date ranges for early voting, and in-person voting options. No matter the type of election, or whether you are voting at home or voting from abroad, this service will provide you with comprehensive election dates and deadlines for your voting state of Montana.
Montana Federal and State Elections
Tue Jun 2, 2026 - Montana Congressional Primary Election
Voter Registration Deadline
- Postmarked by
registration forms postmarked by this date and received within 3 days are accepted for regular registration
Sun May 3, 2026 - Submitted by
Mon May 4, 2026 - Late Registration: Must be received and verified by
Tue Jun 2, 2026 5:00PM
Absentee Ballot Request Deadline
- Received by
Mon Jun 1, 2026 12:00PM - Emergency Ballot Period
Voters with an illness or health emergency between Friday 5 PM before the election and before the close of polls on election day may request an absentee ballot. Contact your Local Election Office.
From Fri May 29, 2026 8:00PM UTC to Tue Jun 2, 2026 8:00PM UTC
Absentee Ballot Return Deadline
Received byTue Jun 2, 2026 8:00PM
Early Voting Available
In-person Absentee VotingFrom Mon May 4, 2026 to Mon Jun 1, 2026
Tue Jun 2, 2026 - Montana State Primary Election
Voter Registration Deadline
- Postmarked by
registration forms postmarked by this date and received within 3 days are accepted for regular registration
Sun May 3, 2026 - Submitted by
Mon May 4, 2026 - Late Registration: Must be received and verified by
Tue Jun 2, 2026 5:00PM
Absentee Ballot Request Deadline
- Received by
Mon Jun 1, 2026 12:00PM - Emergency Ballot Period
Voters with an illness or health emergency between Friday 5 PM before the election and before the close of polls on election day may request an absentee ballot. Contact your Local Election Office.
From Fri May 29, 2026 8:00PM UTC to Tue Jun 2, 2026 8:00PM UTC
Absentee Ballot Return Deadline
Received byTue Jun 2, 2026 8:00PM
Early Voting Available
In-person Absentee VotingFrom Mon May 4, 2026 to Mon Jun 1, 2026
Montana Local Elections
Montana Federal and State Elections
Tue Jun 2, 2026 - Montana Congressional Primary Election
Voter Registration Deadline
Received byTue Jun 2, 2026 8:00PM
Absentee Ballot Request Deadline
Received byTue Jun 2, 2026 8:00PM
Absentee Ballot Return Deadline
- Email, Online or Fax by
Tue Jun 2, 2026 8:00PM - Received by
Tue Jun 2, 2026 8:00PM - Postmarked On or Before Election Day and Received by
This is the deadline for submitting a federal write-in absentee ballot (FWAB).
Mon Jun 8, 2026 3:00PM
Tue Jun 2, 2026 - Montana State Primary Election
Voter Registration Deadline
Received byTue Jun 2, 2026 8:00PM
Absentee Ballot Request Deadline
Received byTue Jun 2, 2026 8:00PM
Absentee Ballot Return Deadline
- Email, Online or Fax by
Tue Jun 2, 2026 8:00PM - Received by
Tue Jun 2, 2026 8:00PM - Postmarked On or Before Election Day and Received by
This is the deadline for submitting a federal write-in absentee ballot (FWAB).
Mon Jun 8, 2026 3:00PM
Montana Local Elections
Go to the Sample Ballot Lookup for candidate names and to learn of any ballot measures and proposed state constitutional amendments on your ballot.
Select a State to View Election Dates and Deadlines
