Missouri Voting Guide
A task-focused dashboard for registration, deadlines, ID rules, ballot tools, and official election authority links for the 2026 midterms.
Not an official government website. Election laws and deadlines can change. Use this guide as a starting point, then confirm legally binding details with the official source links on this page.
State Voting Summary
In Missouri, the next general election is scheduled for November 3, 2026. To participate, voters must meet the following registration deadlines — online: 27 days before Election Day; mail: Must be postmarked 27 days before Election Day; in-person: 27 days before Election Day.
Early voting schedule: In Missouri, early voting dates and locations are managed by Missouri Secretary of State Elections & Voting. Please visit their website to see if in-person absentee or advance voting is available.. Absentee ballot request deadline: To find the final day to request an absentee ballot in Missouri, please consult Missouri Secretary of State Elections & Voting.. Ballot return deadline: Ensure your ballot is counted in Missouri by confirming the return deadline on the Missouri Secretary of State Elections & Voting website..
ID requirement for Missouri: If you're voting in Missouri, you may need to show ID. A complete list of acceptable documents is provided by Missouri Secretary of State Elections & Voting.. Always verify these dates and rules directly with the official Missouri election authority before Election Day.
Quick actions
Registration sourcevote.govPolling place sourcesos.mo.govBallot information sourcesos.mo.govCandidate information sourcesos.mo.govVoter Registration
- Online
- 27 days before Election Day
- By mail
- Must be postmarked 27 days before Election Day
- In person
- 27 days before Election Day
- Eligibility
- U.S. citizen, resident of Missouri, and 18 by Election Day; confirm special circumstances with the official source.Verify at official source
Election Dates and Ballot Timing
General Election
November 3, 2026
Primary Election
August 4, 2026
- Primary
- August 4, 2026
- General
- November 3, 2026
- Early voting
- In Missouri, early voting dates and locations are managed by Missouri Secretary of State Elections & Voting. Please visit their website to see if in-person absentee or advance voting is available.Verify at official source
- Ballot request
- To find the final day to request an absentee ballot in Missouri, please consult Missouri Secretary of State Elections & Voting.Verify at official source
- Ballot return
- Ensure your ballot is counted in Missouri by confirming the return deadline on the Missouri Secretary of State Elections & Voting website.Verify at official source
How to Vote and ID Rules
Accepted ID guidance
If you're voting in Missouri, you may need to show ID. A complete list of acceptable documents is provided by Missouri Secretary of State Elections & Voting.
Verify at official sourceMail voting guidance
If you plan to vote absentee in Missouri, confirm the eligibility and return methods with Missouri Secretary of State Elections & Voting.
Verify at official sourceEverything you need to prep and track your absentee ballot securely.
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Ballot and Candidate Tools
Federal races: U.S. House; no regularly scheduled U.S. Senate race listed by the FEC for 2026.Verified official source
Statewide/local races: Statewide, legislative, judicial, and local offices vary by state and district; confirm your sample ballot with the official election authority.Verify at official source
Frequently Asked Questions
What is the voter registration deadline in Missouri for the 2026 midterms?
Vote.gov lists these registration timing rules for Missouri: online - 27 days before Election Day; by mail - Must be postmarked 27 days before Election Day; in person - 27 days before Election Day. Eligibility rules state: U.S. citizen, resident of Missouri, and 18 by Election Day; confirm special circumstances with the official source.. Check with Missouri Secretary of State Elections & Voting for full details.
When does early voting start in Missouri?
For the primary election on August 4, 2026, and the general election, In Missouri, early voting dates and locations are managed by Missouri Secretary of State Elections & Voting. Please visit their website to see if in-person absentee or advance voting is available.
Do I need an ID to vote in Missouri?
For ID requirements: If you're voting in Missouri, you may need to show ID. A complete list of acceptable documents is provided by Missouri Secretary of State Elections & Voting.
How do I request an absentee or mail ballot in Missouri?
If you plan to vote absentee in Missouri, confirm the eligibility and return methods with Missouri Secretary of State Elections & Voting. Regarding timing: To find the final day to request an absentee ballot in Missouri, please consult Missouri Secretary of State Elections & Voting. And for returns: Ensure your ballot is counted in Missouri by confirming the return deadline on the Missouri Secretary of State Elections & Voting website.