One of the most common questions people ask after getting their ESA letter is: does this expire? The short answer is that ESA letters don't have a legal expiration date written into federal law. The longer answer — and the more useful one — is that annual renewal is strongly recommended, and in some states it's connected to a legal requirement.
Here's everything you need to know about keeping your documentation current.
Do ESA Letters Legally Expire?
No federal law or regulation sets a specific expiration date for ESA letters. The Fair Housing Act doesn't say "your letter is only valid for 12 months." There's no national ESA registry that cancels documentation after a certain period.
However — and this is important — housing providers are permitted to request documentation that reflects a current, ongoing therapeutic relationship. A letter dated four years ago from a clinician you saw once raises legitimate questions: is your condition still the same? Is there still a genuine therapeutic need? Does the relationship reflected in that letter still exist?
Most housing providers — landlords, property managers, and housing authorities — now expect ESA letters to be dated within the past 12 months. Some explicitly state this policy. Others will simply push back on a letter that looks outdated when you try to use it at move-in or during a lease renewal.
So while "ESA letters don't expire" is technically accurate, treating your letter as permanent is a practical mistake. Annual renewal keeps you protected.
Why Annual Renewal Is Recommended
Beyond just satisfying housing provider expectations, annual renewal serves several genuinely useful purposes:
It documents an ongoing therapeutic need. The legitimacy of an ESA letter is grounded in a real clinical assessment of your current condition. A recent letter from a licensed professional reflects that your need has been assessed recently — not just at some point in the past. This matters legally if your accommodation is ever challenged.
It protects against landlord challenges. Landlords and property managers who are inclined to push back on ESA accommodations will look for weaknesses in your documentation. A letter dated 18 or 24 months ago is an easy target. A letter dated three weeks ago is much harder to challenge.
It reflects a current clinical relationship. Mental health treatment evolves. Your condition may be better managed, differently managed, or treated by a different provider than it was a year ago. A renewal reflects where things actually stand — which is both more accurate and more defensible.
It gives you a document ready when you need it. Renewal moments often come up suddenly: you're applying for a new apartment, your lease renews and your property manager asks for updated documentation, or you're in a dispute with a landlord and need your best documentation quickly. Having a current letter means you're never scrambling.
What Changes in a Renewal vs. the Original
A renewal letter is essentially an updated version of your original letter. What changes:
- The date. The letter reflects the current date and your current situation.
- The clinician's current assessment. A renewal involves a fresh evaluation of your therapeutic need, not simply a reissue of the old letter.
- Potentially the clinician. If you're working with a new therapist or if the clinician who issued your original letter is no longer available, a renewal may involve a new professional (though see the note on California below).
What stays the same:
- The format and function. Your renewal letter serves the same purpose as the original and contains the same key elements: the professional's credentials, their assessment of your disability-related need, and the ESA recommendation.
- What you're renewing. You're renewing your documentation, not your animal's status. ESAs don't have term-limited designations — the animal doesn't need to be re-evaluated. You do.
State-Specific Renewal Rules
Most states follow federal FHA standards without additional requirements, but a handful have their own rules that specifically affect how letters can be issued — and those rules apply to renewals as well.
California (AB 468)
California's AB 468, which went into effect in 2022, requires that an ESA letter be issued by a licensed mental health professional who has an established relationship with the patient — meaning the professional must have provided services to the person for at least 30 days before issuing the letter.
For renewals in California, this means your renewal letter must come from a provider with whom you have an active, ongoing relationship. You can't simply fill out a new intake form and get a same-day renewal. The 30-day relationship requirement applies each time. If you've maintained a relationship with the clinician who issued your original letter, this is straightforward — the relationship exists. If you're starting fresh with a new provider, plan for the timeline accordingly.
Arkansas, Montana, Iowa, and Louisiana
These states have similar 30-day relationship requirements. If you're in one of these states, the same principles apply: plan ahead for renewal, and make sure your ongoing therapeutic relationship is documented before you need the letter.
All Other States
In most states, the renewal process is more streamlined, especially when you have an established relationship with the same provider who issued your original letter.
How ESA Renewal Works
The renewal process is typically straightforward. You'll complete an updated assessment — similar to the original intake but focused on your current situation — and a licensed mental health professional reviews it. If your therapeutic need is ongoing and consistent, a renewal letter is issued.
Cost of Renewal
Renewal letters are generally priced lower than initial evaluations. The clinical relationship is established, the process is more efficient, and you're not starting from zero. Think of it the way you'd think of any annual check-in with a healthcare provider: it's not a full initial workup, but it's not nothing either. A licensed professional is still reviewing your situation and attesting to your current need.
What to Do If Your Therapist Is No Longer Available
Clinicians retire, move states, change practices, or sometimes close their telehealth services. If the professional who issued your original letter is no longer available, you'll need to establish a new relationship for your renewal.
In states without a 30-day requirement, this is relatively straightforward: you complete a new intake with a new clinician, they evaluate your situation, and they issue a new letter.
In California and other 30-day states, plan ahead. If you know your clinician is retiring or changing practices, try to start the new relationship before the old one ends. This gives you time to meet the 30-day threshold without a gap in your documentation.
If you're in this situation and unsure how to proceed, look for a telehealth ESA service that can connect you with a licensed professional in your state who can establish a relationship and issue a timely renewal.
When You Might Need a New Letter Sooner Than 12 Months
Annual renewal is the standard cadence, but a few situations might prompt you to get a new letter sooner:
You're moving to a new housing situation. A new landlord or property manager will want documentation that covers your request to them. If your letter is only a few months old, it's typically fine. If it's 11 months old, getting a fresh renewal before you apply for housing is worth considering.
Your landlord specifically requests updated documentation. A landlord can request that your documentation be reasonably current. If they ask for something more recent and your letter is approaching a year old, renewal makes sense.
There's a dispute about your accommodation. If your landlord is challenging your ESA accommodation and your letter is more than 12 months old, a fresh renewal strengthens your position significantly.
Your situation has changed significantly. If you've changed therapists, significantly changed your treatment, or had major changes in your mental health situation, a renewal that reflects your current state is both more accurate and more defensible.
Storing and Sharing Your Letter
A few practical notes on managing your documentation:
Store it digitally. Email a copy to yourself and save it to cloud storage (Google Drive, Dropbox, iCloud) so you can access it from any device. Don't rely solely on a single PDF on your laptop.
Keep the original. Don't give landlords your only copy. Provide a copy — emailed or printed — and keep the original accessible to you.
Know who to share it with. You submit your ESA letter to your landlord or property manager as part of a written accommodation request. You don't need to share it with neighbors, building staff, or anyone else. The landlord is the party with a legal obligation to review and respond to accommodation requests.
Keep a record of submission. Note the date you submitted your letter and accommodation request. If the landlord responds, keep that response. This paper trail matters if you ever need to escalate.
Don't post it publicly. Your ESA letter contains health-related information from a licensed clinician. It's a private document. Treat it with the same care you'd give any medical documentation.
Keeping your ESA letter current is one of the simplest things you can do to protect your housing rights. Annual renewal takes about the same amount of time as your original evaluation, and the peace of mind is worth it.
When it's time to renew — or if you're getting your first letter — start with FurryESA's free assessment. The assessment is free, the process is quick, and the letter arrives within 24–48 hours.