Voting in Missouri

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Election Dates

General Election Date
Voter Registration Deadline (by mail - postmarked)

Vote By Mail Deadlines

Deadline to Request Ballot (Received by)
Deadline to Return Ballot (Received By)

Early Voting Dates

Early Voting Begins
Early Voting Ends

Polling place hours: 6 a.m. to 7 p.m.

Register to Vote

How to Vote in Missouri

Learn about all the options to vote in Missouri to make a plan to vote that works for you!

Frequently Asked Questions

Missouri Board of Elections Phone Number: (573) 751-2301

Missouri Board of Elections Website

Having trouble at the polls?

Call or text: 1-866-OUR-VOTE

Register to Vote in Missouri

Whether you are registering to vote for the first time, or need to update your address, name or party affiliation - we've got you covered!

Am I Registered?

Not sure if you are eligible to vote due to a felony conviction?
Click here to learn more.

Vote By Mail

Request and track

Notice: Mail-in voting is a convenient and safe way to vote, but your ballot might not count if it’s submitted late or with errors. So follow the directions below on how to vote early or absentee and make your vote count in Missouri.

Vote By Mail Deadlines

Deadline to Request Ballot (Received by)
Deadline to Return Ballot (Received By)

Excuse required to vote by mail.

How Vote By Mail Works in Missouri

In Missouri, it is a two step process to vote by mail:

Step 1: Request your ballot NOW. You must have an excuse to qualify to vote with an absentee ballot. The deadline for your application to be received is March 22nd.

  • If you have never voted in Missouri before, include a copy of your photo ID with your application.

Step 2: Complete and return your ballot ASAP.

  • Sign your ballot in the presence of a notary. They must sign it, too.
  • Return in person to your local elections office on or before April 4th, Election Day, at 7 p.m. Find your local elections office here.
  • Or return your ballot by mail to your local election authority so that it is received by 7 p.m. on April 4th. We recommend mailing your ballot at least two weeks before as the post office is not always reliable. The best intentions will not matter if your ballot is received after April 4th - your ballot will not count.


Click Here to See Your Ballot

Witness or Notary Requirement

The absentee ballot envelope must be signed by a notary, election official, or other authorized oath administer.

Where to Sign Your Ballot

Remember to sign your return ballot.

Wait! Don't sign your ballot until you find a notary. You must sign the statement on the return envelope in the presence of a notary. They must sign the ballot, too.

How You Can Return Your Mail-in Ballot

If you return your ballot by mail, your postage is prepaid.

You can also drop off your ballot in person at your local elections office.

Can Someone Else Return Your Ballot For You?

Close relatives may return a ballot on your behalf.

Haven't used your ballot?

If you have an unused mail-in ballot and decide you would like to vote in person go to your polling site on Election Day. Bring your mail-in ballot if possible. The poll worker will confirm that your mail-in ballot was not used before allowing you to vote in person.

Opportunities to Fix Challenges to Your Ballot

Missouri does not offer voters a chance to address challenges to their ballot. Your ballot will not count if it is late, or you do not follow directions.

Voter ID

Do Voters Need ID?

Show one form of acceptable ID

  • A photo ID issued by Missouri, a Missouri agency, or local election authority in Missouri
  • A U.S. passport or other form of photo I.D. issued by the U.S. government


Voter ID in Missouri

Find Your Ballot

Enter your address below to see what you can expect on Election Day.


Automatic Registration

Your state automatically registers people to vote at the address on their drivers license or other state issued ID card. If you have moved but have not updated your ID with your new address, changed your name or want to add a political party selection, you must update your voter registration. Click here to check to see if you are registered to vote, and update your registration if needed.

Election Day Registration

You can register to vote and cast your ballot on Election Day at your polling place or local elections office. Bring a valid ID and proof of residence with you.

In-Person Absentee Voting

In-Person Absentee Dates

Voting Begins
Voting Ends

You can vote in-person absentee in Missouri

From October 25 to November 7, you may vote in person via a no-excuse absentee ballot at a location designated by your local election authority.


Some states have laws that specifically allow citizens to preregister at a certain age while others allow registration as long as you’re 18 by the next election. Preregistration means you’ll be automatically registered to vote on your 18th birthday without taking any additional steps.

In Missouri, you can preregister to vote if you are 17 and 6 months . Register to vote today!

In Missouri, you can preregister to vote if you are 18 by the next election. Register to vote today!

Some states even let you vote in their primaries at 17 if you’ll be 18 by the general election so you can participate in the whole process!

You can not vote in the Missouri primaries if you are 17 by the next election.