Renewing an Emotional Support Animal Letter in Colorado
Colorado law does not stamp an expiration date on ESA documentation, yet lease renewals, moves and new property managers often bring the question back. Here is how to judge timing and refresh a letter properly in 2026.

What Colorado Law Says About Letter Age
Nothing in the 2026 assistance animal amendments or older Colorado statutes sets a shelf life for ESA documentation. Age matters in practice, not on paper.
The law lets a housing provider request reasonable documentation of a disability and the disability-related need for an animal when those are not obvious. Whether an older letter still counts as reasonable documentation is a practical judgment.
Six Moments When a Refresh Makes Sense
You do not need a new letter on a fixed schedule. These situations are the usual reasons to schedule a reassessment.
Moving to a new home
A new housing provider reviews your request from scratch.
Signing a new lease
Especially when the letter is more than a year old.
New owner or manager
Records may not transfer, so be ready to resubmit.
Adding or replacing an animal
The documentation should cover the animal you actually have.
Your condition changed
Improvement or worsening can both change the clinical picture.
Your clinician stopped practicing
A landlord cannot verify a letter from an inactive license.
How Old Is Your Letter?
Enter the date on your current ESA letter. The checker estimates its age and suggests a sensible next step. It does not judge whether your landlord must accept it.
Nothing you type leaves this page.
Already Approved? Renewing the Lease, Not the Request
For a tenant whose ESA was approved and whose situation has not changed, a lease renewal is not automatically a fresh accommodation request. Keep the conversation factual and in writing.
"Please send an updated ESA letter with your renewal."
"My accommodation was approved on [date] and nothing has changed. Could you explain in writing what new information you need?"
If the reason is reasonable, a refreshed letter may be the simplest path; if not, ask the Colorado Civil Rights Division.
Colorado's Meeting Rule Still Applies at Renewal
A renewal is a new written finding, so the licensing statutes matter again.
What the statutes require
- Mental health licensees (C.R.S. 12-245-229) and nurses (C.R.S. 12-255-133): must have met the patient in person.
- Physicians (C.R.S. 12-240-144): in person or by telemedicine.
- All of them: familiar with you and your condition, and qualified to decide.
Questions to ask before booking
- Does an earlier in-person visit with you satisfy the rule for this renewal?
- Is your license active and in good standing? You can verify it through DORA's online license lookup.
- If you practice from another state, which Colorado authorization or compact covers you?
The Renewal in Five Steps
Check the trigger
Move, new lease, new animal, changed condition or a landlord request.
Gather records
Old letter, the approval and any treatment notes you choose to share.
Reassessment
With a clinician who meets Colorado's rule for their license.
Review the letter
Date, license details and a clear statement of need.
Send and file
Ask for written confirmation and keep it with your lease.
What a Refreshed Letter Should Show
A Calendar That Keeps You Ahead
Renewal stress usually comes from timing. Working backward from your lease end date gives the clinician and landlord room to respond.
- 90 days before lease endCheck your letter's age and any renewal notice from the landlord.
- 60 days beforeBook a reassessment if a refresh looks sensible.
- 30 days beforeSend documentation and ask for written confirmation.
- Lease signingFile the approval with the new lease.
Moving Within Colorado?
A new city can mean new local agencies and building rules on top of state law. Start with the guide for where you are headed.
Reassessment Plans
Returning or new, start with the Free Screening. Current plans and prices follow.
Questions About Refreshing an ESA Letter
Do ESA letters expire in Colorado?
No Colorado statute puts an expiration date on ESA documentation. Many housing providers still look for a letter dated within about the past year, so an older letter can lead to questions.
How often should I renew my ESA letter?
Plan a review when you move, sign a new lease, add an animal or notice a change in your condition. Many people also book a yearly check-in because landlords tend to trust recent documentation.
Can my landlord ask for a new ESA letter when I renew my lease?
Colorado lets a housing provider request reasonable documentation when a need is not obvious. If your request was already approved and nothing has changed, ask in writing why an update is needed, and contact the Colorado Civil Rights Division if the demand seems unreasonable.
Does renewing require another in-person visit in Colorado?
Colorado bars mental health licensees and nurses from making the written finding unless they have met the patient in person, while physicians may also use telemedicine. Ask your clinician whether an earlier in-person meeting satisfies that rule for a renewal.
Can a different clinician renew my ESA letter?
Yes, but that clinician has to evaluate you independently and know your condition well enough to reach a finding. Bringing your earlier letter and treatment history helps.
What if my renewal evaluation does not support a new letter?
An honest reassessment can reach that result. Talk with the clinician about what changed, and do not present an old letter as if it were current.
Related Guides
General information about renewing ESA documentation in Colorado, current as of September 2026. It is not legal or medical advice. The letter-age checker is an estimate only. A clinician decides whether a renewed letter is appropriate.
Lease Coming Up? Get Your Documentation Current
Start with the free screening to see whether a reassessment makes sense for you.