Colorado Lease Termination Notice Forms

Last Updated: December 28, 2023 by Roberto Valenzuela

A Colorado lease termination notice is a document which officially announces the upcoming end of a rental tenancy. Either a landlord or tenant may give notice, in most cases at least 28 to 91 days in advance.

Types of Colorado Lease Termination Notice Forms

Notice Form Lease Length
1 Day Notice To Vacate Less than one week
3 Day Notice To Terminate Tenancy More than one week,

but less than one month

At-will tenants

21 Day Notice To Vacate One month or longer,

but less than six months

28 Day Notice To Vacate Six months or longer,

but less than one year

91 Day Notice To Vacate One year or more

Colorado 1 Day Notice To Vacate

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A Colorado 1 Day Notice To Vacate terminates a tenancy of less than one (1) week, or a situation without a written lease that falls within that period of time. The non-terminating party must receive notice at least one (1) calendar day before the termination date.

Colorado 3 Day Notice To Terminate Tenancy

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A Colorado 3 Day Notice To Terminate Tenancy terminates a tenancy at will or a tenancy of more than one (1) week, but less than one (1) month, as well as situations with an expired lease or no written lease that fall within those periods of time. The non-terminating party must receive notice at least three (3) calendar days before the date of termination.

Colorado 21 Day Notice To Vacate

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A Colorado 21 Day Notice To Vacate terminates a tenancy of one (1) month or longer, but less than six (6) months, as well as an expired lease of under six months or a situation without a written lease where the tenant pays rent monthly. The non-terminating party must receive notice within twenty-one (21) days of the date of termination.

Colorado 28 Day Notice To Vacate

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A Colorado 28 Day Notice To Vacate terminates a tenancy of six (6) months or longer, but less than one (1) year, as well as an expired lease or a situation without a written lease which has lasted more than six months. The non-terminating party must receive notice within twenty-eight (28) calendar days of the date of termination.

Colorado 91 Day Notice To Vacate

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A Colorado 91 Day Notice To Vacate terminates a tenancy of one (1) year or longer. The non-terminating party must receive notice within ninety-one (91) calendar days of the date of termination.

How To Write a Lease Termination Notice in Colorado

To ensure the legal compliance of a lease termination notice:

  1. Use the full name of the receiving party, and address of record, if known
  2. Specify the termination date of the lease or tenancy
  3. Fill in the full address of the rental premises
  4. Provide updated/current address and phone number information
  5. Print name and sign the notice
  6. Complete the certificate of service by indicating the date and method of notice delivery, along with printed name and signature

It is easy to lose an otherwise justified legal action because of improper notice. Check carefully to ensure enough time after notice is delivered, not when it’s sent.

How To Calculate Expiration Date in Colorado

The “clock” for a lease termination notice period starts “ticking” the day after the notice gets delivered (served). For example, to give at least 30 days of notice and terminate a tenancy as of June 30th, delivery of the termination letter must be no later than May 31st. 

In most jurisdictions, if the last day of a notice period is a Saturday, Sunday, or legal holiday, the notice period continues to run until the end of the next day that is not a Saturday, Sunday, or legal holiday.

How To Serve a Lease Termination Notice in Colorado

Colorado landlords and tenants may deliver a lease termination notice using any of these methods:

  1. Hand delivery to the other party
  2. Hand delivery to a person over age 15 who can accept the notice on behalf of the other party
  3. Posting the notice in a conspicuous place on the premises, such as the entry door

Mailed notice extends the notice period by three (3) calendar days, to account for variable delivery times.

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