Early &
Mail-in Voting
in Colorado

Warning: 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 Colorado.

Note - this information below may change for your state due to ongoing litigation and legislation. This page will be updated within 24 hours of any change.

Vote Before Election Day

Vote Early In Person
Early Voting Begins
Early Voting Ends

Vote By Mail Deadlines

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

In-Person Early Voting

You can vote early in your state before Election Day. Early voting begins on 10/30/2023 and ends on 11/06/2023

You can return your mail-in ballot to your early voting site.

You can register to vote, vote early in person, or return your mail-in ballot at a Voter Service and Polling Center near you. Click here to find your Voter Service and Polling Center.

How Vote By Mail Works in Colorado

Colorado has a one step vote by mail process. It is a vote-by-mail state, meaning that all registered voters receive a ballot in the mail. The deadline to register to vote and receive a ballot in the mail is October 30th, 8 days before Election Day. After you complete your ballot, be sure to return it ASAP!

  • Return in person by Election Day, November 7th at 7 p.m. You can return to any county drop boxes, Voter Service and Polling Center, and your county election office.
  • Or stamp and return your ballot by mail - your ballot must be mailed so that it is received by Election Day, November 7th. We recommend mailing your ballot at least two weeks before as the post office is not always reliable. The best intentions or postmark will not matter if your ballot is received after Election Day - your ballot will not count.
Need your ballot sent to a different address? Apply for a ballot here ASAP (deadline is 8 days before Election Day) and follow the steps listed above. Don't worry if you miss the voter registration mail-in ballot deadline - you may still register to vote through Election Day and vote in person at a vote center in your county.

Look Up Ballot Drop Off Locations

You may vote by mail for any reason

You don’t need an excuse to request an absentee ballot. You can vote by mail for any reason.

Remember to Sign Your Return Ballot

After completing your ballot, put it into the return envelope provided by the state. Sign the self-affirmation on the return envelope. Be sure that your signature matches your signature on file with the state! If you registered online or at the DMV, check the signature on your license. If the signature does not match, your ballot could be tossed and will not count.

Use The Right Form of ID

Colorado voters must show valid photo ID when voting in person. Info here on what qualifies. You do not need to submit a copy of your photo ID when voting by mail, but signature must match the signature on voter registration form.

How You Can Return Your Mail-in Ballot

By Mail

You must add a stamp when mailing in your ballot.

In Person

  • Drop box
  • Early voting locations
  • Polling place

Any designated person can drop off a ballot for you.

Look Up Ballot Drop Off Locations

Make Sure Your Mail-in Vote Counts

Click here to track your ballot. Colorado offers electronic, barcode ballot tracking services so you can make sure your ballot gets counted.

Haven't used your ballot?

If you decide to vote in person rather than vote by mail, go to a Voter Service and Polling Center in your county to vote in person. If possible, bring your ballot to discard at the Voter Service Center. Even if you do not return the mail ballot, you may still vote in person.

Election Protection Hotline

The national, nonpartisan Election Protection coalition was formed to ensure that all voters have an equal opportunity to participate in the political process. Made up of more than 100 local, state and national partners, Election Protection works year-round to advance and defend the right to vote.

Call 866-OUR-VOTE if you need assistance.

More about voting in Colorado

Find your polling place, ID laws, and more about voting for the first time below.

Voting Info for Colorado First Time Voter Info