All 64 Colorado counties and county equivalents. 0 have been checked against the county's own schedule; the rest follow the state schedule below.
| Instalment | Due | Notes |
|---|---|---|
| First half | March 1, 2027 | First half is due by the last day of February; paying the full amount by April 30 avoids interest. |
| Annual (single payment) | May 1, 2027 | Optional single payment of the full year's tax; no delinquent interest if paid by this date. |
| Second half | June 16, 2027 | Second half is due by June 15; the unpaid balance becomes delinquent June 16. |
Colorado property tax is billed and collected county by county, so the collector — not the state — issues the bill. All 64 counties follow the same statutory schedule, adjusting only when a date falls on a weekend or holiday.
StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.