Vote early. Use a drop box.

To help election officials process ballots efficiently, return your mail-in ballot as early as you can. The best way to return your ballot is to use a secure ballot drop box in your county.

Key dates

Please see the Secretary of State’s Election Calendar for more details.

Friday, October 2: First day that mail ballots may be mailed to registered voters (except UOCAVA voters). Start to look for your ballot in the mail!

Friday, October 9:

• First day that drop boxes must begin to accept hand-delivered mail ballots from voters. Drop boxes will stay open for ballots through November 3rd at 7PM.

• The final deadline for county clerks to send mail ballots to each active eligible elector.

Monday, October 19:

• In person early voting begins! Voter Service and Polling Centers (VSPCs) will be open from 10/19 continuing through Election Day, except Sundays and the first Saturday of this period.

• Counting mail ballots begins. No results may be disclosed until after 7PM on Election Day.

Tuesday, October 20: This is the last day we recommend returning your mail ballot through USPS.

Monday, October 26: Last day to submit a voter registration application and still receive a ballot in the mail for the 2026 General Election. (Through the 8th day before an election). If you register online on 10/26, you will need to fill out your ballot and deliver it to a drop box or VSPC in person for it to count (cannot return it via USPS).

Tuesday, October 27-November 3: If the county clerk receives a voter registration application 7 days or less before the 2026 General Election, the clerk must process the application and inform the applicant that they will not receive a mail ballot. To receive a ballot, the applicant must visit a VSPC.

Tuesday, November 3: Election Day!

• All voting locations are open, and all ballots must be received by clerks’ offices by 7:00pm.

• You may register and vote in person on election day.

• *Ballots cast by military and overseas voters must be sent no later than 7:00pm on Election Day and received by the close of business on the 8th day after the election.

Check your registration

Take a minute to make sure your voter registration is up to date. At GoVoteColorado.gov, you can:

• Check your registration

• Update your address

• Change your party affiliation

• View your sample ballot

• Find a ballot drop box

• Find a Voter Service and Polling Center

Need help voting?

Call the Voter Assistance Hotline at 1-833-336-8683.

You can also email questions to voting@coloradodems.org

For ballot interpretation assistance, have your ballot with you and choose one of these options:

• Call the Colorado Secretary of State’s office at 303-860-6970

• Visit a Voter Service and Polling Center in person

• Call your county election office

Official voting information

For official voter registration, ballot and polling location information, visit GoVoteColorado.gov.