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How to send a rent increase notice in Colorado

In Colorado, a rent increase notice may be delivered by First-Class mail, hand delivery; certified mail is not a listed method. The notice period is 60 days.

Last reviewed September 21, 2026 · Business research, not legal advice.
RequirementColorado rent increase notice
Delivery methodFirst-Class mail, hand delivery
Notice period60 days (calendar days)
Deemed receivedWhen it is mailed
If refused or unclaimedkeep the certified record.
Statutes
C.R.S. §38-12-701 (secondary source)

Part of this rule relies on secondary sources rather than the statute itself, and has not yet been confirmed by a lawyer.

Step by step

  1. Write the notice with every required element (the Colorado template in Cortul already has them).
  2. Verify the recipient's mailing address with USPS.
  3. Send it by a method the law allows, and keep a mailed copy.
  4. Keep the mailing and tracking records, and your own record of any service you did yourself.
  5. Calendar the deadline from the mailing date.