Montana (MT)

Eligibility

Age: 18 (may register at 17 if turning 18 by election day)

ID Requirements

To Register: MT driver's license, state ID number, or last 4 of SSN. Without these, can provide: military ID, tribal photo ID, U.S. passport, MT concealed carry permit, or any other photo ID (including student ID) plus a document showing name and address (utility bill, bank statement, paycheck, government document).

To Vote: Photo ID required (effective May 2025). Non-photo ID is no longer accepted.

Registration Methods

• Online: This state does not offer online voter registration. Residents must register by mail or in person.
• Mail: Residents can register to vote by completing a paper registration form and submitting it by mail to the appropriate election office.
• In Person: Residents can register to vote by visiting a designated government office, such as a county clerk's office or DMV, and completing a registration form on site.

Early Voting ⓘ

A period before Election Day during which voters can cast their ballots in person at designated polling locations. The length of the early voting period varies by state.

In-person absentee voting available at county election offices before election day.

Mail-In / Absentee Voting ⓘ

A voting method where ballots are automatically mailed to all registered voters without requiring a specific request. States that use this approach conduct elections primarily or entirely by mail.

No-excuse absentee voting. Counties with fewer than 800 voters may conduct all-mail elections.

Felony Voting Rules ⓘ

State laws governing whether and when people with felony convictions can vote. Policies range from no restrictions to permanent disenfranchisement, with most states restoring rights at some point after sentencing.

Rights restored upon release from incarceration. People on probation and parole may vote.

Documentation Needed

• Valid ID with name
• Proof of residency for late registration

Sources

• Montana Official Election Website
• Vote.org - Montana