MO

Missouri Voter Registration Guide

Current voter registration requirements, birth certificate ordering information, voter ID rules, deadlines, and official election office links for Missouri.

POC: No current requirementPhoto ID required
Interactive map of the United States showing proof-of-citizenship law status by state
Active POC Law
POC Law (Not Enforced)
No POC Requirement
Voter ID Requirement
Photo ID is required for in-person voting; if a voter does not have valid photo ID, non-photo options may be used and, if needed, a provisional ballot route is available
Online Registration
Available
Registration Deadline
Voter registration must be completed by the fourth Wednesday prior to an election
Proof of Citizenship Law
No current requirement
NoteNo active statewide documentary proof-of-citizenship voter-registration requirement as of Mar 2026.

What to Do Now

  1. 1Check if you have one of the accepted documents (passport, birth certificate, naturalization certificate)
  2. 2If your name has changed, get a passport in your current legal name
  3. 3Order your birth certificate now if you don't have one
  4. 4Verify your voter registration is current
  5. 5Keep originals safe - the SAVE Act requires originals, not photocopies

Frequently Asked Questions