The ACLU of Missouri works in the courts, legislature, and communities to defend and preserve the individual rights and liberties under the Constitution, including your right to vote. That includes making sure you have access to information about how to exercise your right to vote and where to get help if you experience a barrier or threat to this tool of democracy. 

Your vote is your voice. Voting is the cornerstone of our democracy and the fundamental right upon which all our civil liberties rest.  

Your vote will determine what laws and which lawmakers will impact taxes, health care, safety, education, justice, infrastructure and more. 

  1. Check your Missouri voter registration status 
  2. Register to vote here.
  3. Request your absentee or mail-in ballot here and mail it to your local election board
  4. Make a plan and Vote! Find your polling place

No-Excuse Absentee Voting 

Missourians now have two weeks of no-excuse in-person absentee voting. Voters will need to provide a non-expired state or federally issued photo identification when voting no- excuse in-person absentee. Contact your local election authority to learn how you can cast your no-excuse in-person ballot. 

Voter Registration Dates

Voter Registration  April 2, 2024 - Municipal Elections August 6, 2024 - Primary Election
Voter registration deadline  March 6 July 10
Absentee Voting*     
Mail request deadline received  March 19 (must be returned by March 20) July 23 (must be returned by July 24)
Mail return deadline  March 20 July 24
No Excuse In-Person Absentee March 19 - April 1 July23 -August 5
In-Person Voting**     
Polls are Open  6:00 a.m. until 7:00 p.m.  6:00 a.m. until 7:00 p.m. 
*Your Election Authority must receive the Request for Absentee Ballot no later than 5:00 p.m. on the Wednesday prior to Election Day. 
**Individuals arriving after the polling place has closed will not be allowed to vote. However, those individuals in line at 7:00 p.m. will be allowed to vote. 

Acceptable forms of Identification for Voting

While we are challenging the voter restrictions that recently went into effect, it is crucial that you are registered and have the proper identification in order to cast your ballot. 

You can vote an absentee ballot without your voter identification card as long as you are a registered voter. Voting absentee does not guarantee your vote will be counted. Provisional ballots will only be counted if you return to the polls with the proper identification or your signature must match the signature on record. 

Show one of the forms of acceptable identification and sign the poll book to ensure your vote is counted: 

  • Photo Identification issued by the State of Missouri, United States government or agency

The following identification cards are acceptable for voting. A valid driver license, a valid non-driver license, a valid passport and a valid military identification card.

Protection & Advocacy for Voter Accessibility

Protection & Advocacy for Voter Accessibility (PAVA) is part of the federally mandated system to protect the legal rights of persons with disabilities through legal-based advocacy. PAVA services are available to individuals in Missouri who have a disability and need help to fully participate in the voting process, including: 

  • Registering to vote 
  • Casting a ballot 
  • Accessing your polling place 

Questions or problems voting? Please call 866-OUR-VOTE (1-866-687-8683) or visit You may also report the issue to the ACLU of Missouri.

File a Complaint