2026 Missouri Elections
Key 2026 state and federal election dates for Missouri, plus voter registration and absentee resources.
Next election in Missouri
General Election
- In-person early voting
- October 20, 2026 – November 2, 2026
- Missouri allows voters to cast a no-excuse absentee ballot in person from the second Tuesday before an election through the day before Election Day at a location designated by their local election authority.
Registration & mail ballot deadlines (3)
- Voter registration deadline
- October 6, 2026
- Voter registration closes 28 days before the election; Missouri has no same-day registration.
- Absentee ballot request (excuse required)
- October 27, 2026
- Mailed absentee ballots still require an excuse (notarization typically required), with applications due about a week before Election Day.
- Mail ballot return
- Must be received by November 3, 2026
- Absentee ballots must be received by the local election authority by 7 p.m. on Election Day.
Key dates
State & Federal Elections
Early voting, mail ballot, and registration deadlines below are calculated from Missouri's standing rules for each election date. Always confirm with your county election office.
Tuesday, August 4, 2026 · Primary Election · CompletedShow detailsHide details
- In-person early voting
- July 21, 2026 – August 3, 2026
- Missouri allows voters to cast a no-excuse absentee ballot in person from the second Tuesday before an election through the day before Election Day at a location designated by their local election authority.
Registration & mail ballot deadlines (3)
- Voter registration deadline
- July 7, 2026
- Voter registration closes 28 days before the election; Missouri has no same-day registration.
- Absentee ballot request (excuse required)
- July 28, 2026
- Mailed absentee ballots still require an excuse (notarization typically required), with applications due about a week before Election Day.
- Mail ballot return
- Must be received by August 4, 2026
- Absentee ballots must be received by the local election authority by 7 p.m. on Election Day.
- 22 days away
General Election
NOV032026Tuesday- In-person early voting
- October 20, 2026 – November 2, 2026
- Missouri allows voters to cast a no-excuse absentee ballot in person from the second Tuesday before an election through the day before Election Day at a location designated by their local election authority.
Registration & mail ballot deadlines (3)
- Voter registration deadline
- October 6, 2026
- Voter registration closes 28 days before the election; Missouri has no same-day registration.
- Absentee ballot request (excuse required)
- October 27, 2026
- Mailed absentee ballots still require an excuse (notarization typically required), with applications due about a week before Election Day.
- Mail ballot return
- Must be received by November 3, 2026
- Absentee ballots must be received by the local election authority by 7 p.m. on Election Day.
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Dates are subject to change. Always confirm with official state and county election sources. Back to state directory