Last Updated on March 13, 2026
If you depend on an emotional support animal to feel safe, calm, and comforted in your everyday life, you need to make sure your paperwork is always up to date. Otherwise, you could face problems with your housing provider.
Many people assume that ESA approval is a one-time process, but that’s not how it works. Over time, landlords may request updated proof that your emotional support animal is still part of your treatment plan.
So, how long is an ESA letter good for? Let’s find out.
How Long Is an ESA Letter Good for and When Does It Expire?
According to an expert guide by EmotionalSupportAnimal, while federal housing laws don’t have a strict expiration date for ESA letters, they’re generally considered valid for one year from the date they’re issued.
Why one year? Because landlords and housing providers usually want to see recent documentation. A letter that’s two or three years old may raise questions about whether you still need the animal as part of your mental health care.
Even though the law doesn’t say ESA letters expire after 12 months, the standard practice is to renew them yearly. This shows you’re still under the care of a licensed mental health professional and continue to benefit from your emotional support animal.
What Happens if Your ESA Letter Expires and You Don’t Renew It?
Letting your ESA letter expire without renewing it can create unnecessary stress.
If you have an outdated letter, a landlord may request to see a new one before continuing your accommodation. In some cases, you might be given a deadline to provide a new letter. Until you do so, the housing provider may pause approval or question your eligibility.
When signing a new lease, an expired letter may prompt additional requests, extra verification steps, or temporary denial until proper paperwork is submitted. The housing provider could also treat your emotional support animal as a regular pet. That may mean pet fees, breed restrictions, or even being told the animal isn’t allowed.
What Makes an ESA Letter Valid?
An ESA letter must meet certain requirements to be accepted. A note that says you need a pet isn’t enough.
A valid ESA letter should be written by a licensed mental health professional (LMHP) on official letterhead. It has to include the provider’s license number and state of practice. More importantly, it should state that you have a mental or emotional condition recognized in the DSM and that your animal provides emotional support related to that condition.
If any of these details are missing, a landlord may question the letter’s legitimacy.
What Happens if You Move to Another State?
If you relocate to a different state, your existing ESA letter may not be accepted. Some housing providers and property managers require a letter from a licensed professional who’s authorized to practice in your current state.
It’s not a universal rule, but it’s common enough that you should check before assuming your old letter will carry over. If you’ve recently moved or are planning to, it’s a good idea to connect with a licensed mental health professional in your new state and get an updated letter that reflects your current location.
Do All Landlords Have the Right to Ask for an Updated Letter?
Yes, they do, especially when you’re renewing a lease or applying for new housing. Under housing laws, landlords can request documentation if your need for the animal isn’t obvious. They can’t ask for your full medical records or a specific diagnosis. However, they can ask for a current ESA letter.
If your letter is several years old, a landlord will most likely request updated paperwork. Renewing your letter in advance helps avoid last-minute complications.
How to Renew Your ESA Letter
Plan to schedule your ESA letter renewal appointment about 10 to 11 months after you receive your original letter. Setting a calendar reminder can help make sure you don’t miss the deadline.
If you have an ongoing relationship with a therapist, that makes things even easier. They already know your history and can quickly assess whether your ESA is still necessary for your well-being.
During the appointment, be honest about how you’re doing. Share how your ESA helps you in daily life. The provider will evaluate your current needs and, if appropriate, provide an updated ESA letter.
Once you receive your renewed letter, double-check that all the details are correct. Keep copies in a safe place and send one to your landlord if requested.
How Long Is an ESA Letter Good For: When Should You Renew Your ESA Letter?
You shouldn’t wait until you’re in the middle of a housing situation to realize your letter has expired. Mark your calendar and renew your ESA letter before the one-year mark, so you won’t have to worry about delays, lease issues, or uncomfortable conversations.
That’s the only way to fully benefit from the comfort and support your ESA provides.
