Colorado Voting Guide

In Colorado, the next general election is scheduled for November 3, 2026. To participate, voters must meet the following registration deadlines — online: 8 days before Election Day — Open until Oct. 26; mail: Must be postmarked 8 days before Election Day — Open until Oct. 26; in-person: Available up to and including on Election Day — Same-day registration at voter service centers through Nov. 3.

Early voting schedule: Colorado mails a ballot to every active voter (mailed Oct. 2 to 9). Voter service and polling centers open for in-person voting by Oct. 19 and stay open until 7 p.m. on Election Day. Absentee ballot request deadline: No request is needed, because every active registered voter is mailed a ballot by Oct. 9. Register or update your record by Oct. 26 to get one in the mail. Ballot return deadline: Your county clerk must have your ballot by 7 p.m. on Nov. 3, and a postmark does not count. Oct. 26 is the last suggested day to mail it.

ID requirement for Colorado: In-person voters show ID, and Colorado accepts many kinds, not only photo ID: a Colorado driver's license or ID card, U.S. passport, military or tribal ID, Medicare or Medicaid card, birth certificate, or a recent utility bill, bank statement, paycheck, or government document with your name and Colorado address. Always verify these dates and rules directly with the official Colorado election authority before Election Day.