Colorado Lease Renewal / Rent Increase Notice

Colorado has no statutory requirement that landlords offer lease renewals or extend fixed-term tenancies. For month-to-month (periodic) tenancies, landlords must provide at least twenty-one (21) days' written notice to change lease terms or increase rent. Renewal or modification notices should clearly specify the new term dates, the updated rent amount, and any other changed conditions. C.R.S. § 13-40-107 governs termination and non-renewal notice periods for periodic tenancies. There is no statewide rent control or statutory cap on rent increases in Colorado.

Colorado Notice Requirements for Periodic Tenancies, C.R.S. § 13-40-107

A landlord who wishes to modify the terms of a month-to-month tenancy, including rent, must deliver written notice of the proposed change at least twenty-one (21) days before the change is to take effect. The notice must be served by a method that provides reasonable evidence of delivery.

• Colorado imposes no rent control, rent stabilization, or statutory limitation on the amount of any rent increase.
• Local governments generally may not impose rent caps on private residential property, though certain affordable or subsidized housing programs may have their own rules.
• If the existing tenancy is under a fixed-term lease, the terms of that lease control renewal, rent adjustments, and notice requirements. Review the lease first.
• Any change in terms or rent must not be retaliatory or discriminatory.

Current Tenancy Type: [[Month-to-Month / Fixed-Term Lease Ending [[Lease End Date]]]]

Notice Period Applied: 21 days (or as required by the governing lease)

Effective Date of New Terms / Rent: [[Effective Date of Changes]], -

Tenant, Landlord, and Property Identification

Property Address:
[[Full Street Address]]
[[City]], Colorado [[ZIP Code]]

Landlord / Authorized Agent:
Name: [[Landlord or Management Company Full Name]]
Mailing Address: [[Landlord Mailing Address]]
City/State/ZIP: [[City]], Colorado [[ZIP Code]]
Phone: [[Landlord Phone]] Email: [[Landlord Email]]

Tenant(s):
[[Tenant Full Name(s)]]

Current Lease / Rental Agreement Date: [[Original Lease or Tenancy Start Date]], -

Current Terms

• Monthly Rent: $[[Current Monthly Rent Amount]]
• Lease / Tenancy Type: [[Month-to-Month or Fixed Term Details]]
• Additional Recurring Charges: [[Current Pet Rent / Parking / Utilities / Other]]
• Security Deposit Held: $[[Current Security Deposit Amount]]
• Other Material Terms: [[List any other relevant current terms or "As stated in lease"]], -

Proposed New or Renewal Terms

The following terms will apply beginning on the Effective Date unless the tenant timely provides written notice of non-renewal or the parties execute a new written agreement.

New / Renewal Terms Effective [[Effective Date of Changes]]:

• New Monthly Rent: $[[New Monthly Rent Amount]]
• New Lease / Tenancy Type: [[New Term Type, e.g. Month-to-Month or [[New Fixed Term Length]]]
• New Lease Start Date: [[New Term Start Date]]
• New Lease End Date (if fixed): [[New Term End Date]]
• Changed Additional Charges: [[New or Unchanged Additional Monthly Charges]]
• Other Changed Conditions: [[Description of Any Other Modified Terms or "None"]]

Dollar Increase: $[[Dollar Increase Amount]] per month
Percentage Increase: [[Percentage Increase]]%

Payment Method and Address for New Rent: [[Payment Instructions]], -

Tenant Options and Response

The tenant is not obligated to accept the new or renewed terms.

1. The tenant may agree to the new terms by signing and returning a copy of this notice or by continuing to occupy the Premises after the effective date and paying the new rent.

2. The tenant may provide written notice of intent not to renew or accept the changed terms. Such notice must be given in accordance with the lease or Colorado law (typically 21 days for month-to-month).

3. If the tenant neither accepts nor provides timely notice of non-acceptance, the tenancy may convert to the new terms or may terminate at the end of the current period depending on the lease language and notice given.

Tenant Response Deadline: [[Response Deadline Date, at least 21 days before effective date]], -

Service of Notice

This notice may be delivered by:

1. Personal delivery to the tenant or a person of suitable age and discretion at the Premises.

2. First-class mail to the tenant at the Premises address (allow extra time for delivery).

3. Posting in a conspicuous place on the Premises combined with first-class mail.

4. Any method authorized by the lease or Colorado law.

Method of Delivery Used: [[Personal / Mail / Posting + Mail / Other]]

Date of Delivery / Mailing: [[Date Notice Delivered or Mailed]], -

Certificate of Delivery

I certify that on [[Date of Delivery]], I delivered or caused to be delivered this Colorado Lease Renewal / Rent Increase Notice to [[Tenant Full Name(s)]] at the property address above by the method checked:

☐ Personal delivery

☐ First-class mail

☐ Posting + first-class mail

☐ Other authorized method: [[Describe]]

________________________________________
Signature of Server / Landlord
[[Server or Landlord Full Name]]
Date: [[Certificate Date]], -

Pre-Delivery Checklist

1. Confirm whether current tenancy is month-to-month or governed by fixed lease terms.

2. Calculate and state the correct 21-day (or lease-required) notice period.

3. Itemize current rent and all proposed new amounts clearly.

4. Specify exact effective date that falls after the full notice period.

5. State any other changed conditions with specificity.

6. Retain copy of notice and proof of service.

7. Verify that proposed rent or terms are not retaliatory.

8. If property is subject to any affordable housing, subsidy, or local program rules, confirm compliance with those additional requirements., -

Colorado Lease Renewal / Rent Change Statutory Reference

Disclaimer and Sources

Template, not professional legal advice. This is a sample form only. Colorado does not require landlords to renew leases. Notice periods and procedures must be verified against the current version of C.R.S. § 13-40-107 and any applicable lease provisions or local program rules. Consult a licensed Colorado real estate attorney for advice specific to your situation. This notice does not create a new lease unless accepted by the tenant in writing or by conduct.

Sources (as of June 2026):
- Colorado Revised Statutes § 13-40-107 (Notice to terminate or modify periodic tenancy)
- C.R.S. § 38-12-103 (Security deposits)
- C.R.S. § 38-12-509 (Retaliatory conduct prohibited)
- Colorado Fair Housing laws and federal Fair Housing Act
- General guidance from Colorado Division of Housing and Colorado Bar Association resources, -

*End of Colorado Lease Renewal / Rent Increase Notice*