Colorado Lease Termination Notice — Free Generator & 2026 Requirements
Updated July 2026 · Reviewed against Colorado statutes
A month-to-month tenancy in Colorado doesn't end until valid written notice is served — at least 21 days before the termination date. Generate a correctly formatted notice below, free.
| Required notice period | 21 days |
| Applies to | Month-to-month tenancies |
⚠ 21 days applies to month-to-month tenancies; longer tenancies require longer notice.
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Your notice
How to serve this notice in Colorado
Frequently asked questions
How much notice must a landlord give to end a month-to-month tenancy in Colorado?
At least 21 days' written notice. 21 days applies to month-to-month tenancies; longer tenancies require longer notice.
Does the termination date have to line up with the rent due date?
In many states the notice must expire at the end of a rental period (often the last day of a month). Setting the termination date to the end of a full rental period after the notice window is the safest practice.
Do I need a reason to end a month-to-month tenancy in Colorado?
Historically, most states allow no-cause termination of month-to-month tenancies with proper notice — but a growing number of states and cities require just cause. Verify current Colorado law and any local ordinances before serving notice.