30-Day Notice to Vacate for Colorado landlords

30-day termination notice for month-to-month tenancies Written to CO landlord-tenant law, with the notice period counted for you.

Colorado requirement: 21-Day Notice
Colorado requires 21-day notice to terminate month-to-month tenancies.

Pay or quit
10 days
Month-to-month
21 days
Rent increase notice
21 days
Max deposit
No limit
Deposit return
30 days
Colorado · CO21-Day Notice

When you need a 30-day notice to vacate.

  • Want to end month-to-month tenancy
  • Selling property and need tenant out
  • Moving family into rental
  • Tenant is problematic but not evictable

Colorado rules that apply here.

Colorado has no statewide rent control, but individual cities may still impose their own requirements.

  • 10-day notice for nonpayment
  • 21-day notice for month-to-month termination
  • No statewide rent control

What landlords ask about this in Colorado.

Do I need a reason to end a month-to-month tenancy?
Under Colorado law, generally no. But a growing number of cities require just cause, and rent-controlled areas almost always do. Retaliation and discrimination are prohibited reasons everywhere, whatever the local rule says.
Can the tenant leave before the notice period ends?
Yes. The notice sets the date by which they must be out, not a date they must stay until. Rent is still owed for the days they actually occupy the unit unless you agree otherwise in writing.
What if the tenant doesn’t leave when the notice expires?
The tenancy has ended but you still cannot remove them yourself. File for eviction and let the court order it. Serving the 21-day notice correctly in CO is what makes that filing hold up.
Is this enough notice in Colorado?
Colorado requires 21 days to end a month-to-month tenancy. Longer tenancies, rent-controlled units and certain cities require more. If the tenant has been there over a year, check the long-term rule before you serve.

This is general information about Colorado landlord-tenant law, not legal advice. Local ordinances can be stricter than the state rule, and if a dispute is already underway it is worth an hour of a lawyer’s time.

Generate your Colorado 30-day notice to vacate.

Free, no account, and dated against CO rules. Create an account only when you want the tenant details reused next month and the copies kept.