Ballot by Mail
ballotbymail.org · nonpartisan
ballotbymail.org · nonpartisan
November 3, 2026 general election
Voting by mail in Colorado
Yes. Your ballot comes to you. Every active registered voter is mailed a ballot automatically. Just make sure your registration and mailing address are current.
Key dates
| Register to vote by | Mon, Oct 26 (same-day registration also available) |
| Request your ballot by | Mon, Oct 26 (recommended) |
| Early in-person voting | Mon, Oct 19 – Tue, Nov 3 |
| Mail your ballot by | Tue, Oct 27 (USPS: allow 7 days) |
| Election Day | Tue, Nov 3 |
| Return rule | Received by 7 p.m. on Election Day. Postmarks don't count. |
| Fix a signature problem by | Wed, Nov 11 |
Steps
- Confirm your registration and mailing address are current.
- Watch for your ballot in the mail. Most states send them 2 to 3 weeks before Election Day.
- Fill it out in blue or black ink. Sign the envelope where it says to.
- Return it by drop box or in person if you can. Mail it at least a week early if not.
- Track it on your state's tracker until it shows received.
Don't get rejected
- Sign the envelope the way you signed your voter registration or driver's license. Your state compares them.
- Use the secrecy sleeve if one is included, then the return envelope. Don't tape anything.
- Keep the phone and email on your registration current. If there's a problem, that's how they reach you to fix it.
Official election office
https://www.sos.state.co.us/pubs/elections/
https://www.sos.state.co.us/pubs/elections/
Track your ballot
https://colorado.ballottrax.net/voter/
https://colorado.ballottrax.net/voter/
This page, with live updates
ballotbymail.org/state/co
ballotbymail.org/state/co
Trouble voting? 866-OUR-VOTE (English) · 888-VE-Y-VOTA (Español) · 888-API-VOTE (Asian languages) · 844-YALLA-US (العربية)
Rules checked 2026-09-09; deadlines checked 2026-09-09. Sources: NCSL, Vote.org, CEIR, state election offices. The official site wins if anything differs. Free to copy and post.