How to ask your therapist or doctor for an ESA letter

Why start with a provider who already knows you?

A clinician who already treats you knows your history, your symptoms and how they affect daily life. That is exactly what an ESA letter is meant to describe: a disability related need for the animal, written by someone with personal knowledge of it. Housing providers, colleges and state agencies tend to give that kind of letter real weight.

Timing matters more in 2026. HUD's May 22, 2026 enforcement memo says its fair housing office will find reasonable cause only for animals individually trained to do work or perform tasks, so untrained ESA requests now get closer, case by case scrutiny. A letter from a treating clinician is the kind of evidence state agencies and courts still rely on. Our guide to HUD's 2026 guidance covers what changed and what did not.

An existing relationship can also satisfy state rules. California (for emotional support dogs), Arkansas (for dogs) and Louisiana require a client provider relationship of at least 30 days, Montana's statute names a Montana licensed mental health professional with a 30 day relationship as one accepted source, and Iowa asks the provider to certify whether one existed. A therapist you have seen for months already clears that bar.

Which providers can you ask?

Any licensed professional who treats you and whose license covers assessing mental or emotional conditions may be able to help. That usually includes therapists such as LCSWs, LPCs, LMHCs and LMFTs, psychologists, psychiatrists, and many primary care physicians and nurse practitioners. A few states narrow the list, so check where you live on our state law hub.

The provider generally needs to be licensed in the state where you live now. If you moved recently and still see a clinician back home by video, ask whether they can legally document a need for someone located in your new state before you rely on their letter.

What should you say? A short script

Keep it simple and specific. You do not need to argue a legal case; you need to explain how the animal helps and what the letter is for. You can say something like this in a session or send it through your patient portal:

• The animal's name, species and how long you have had it
• Two or three concrete examples of how the animal helps with symptoms
• What the letter is for (a rental, college housing, a renewal) and any deadline
• Any form your housing provider or school asked you to use
• Your state's specific rules, if any, such as a required license or relationship period

"I want to ask about something connected to my treatment. My dog, Juniper, helps me manage my symptoms between our sessions. When things build up in the evening, having her with me helps me settle, and caring for her keeps me on a routine. I am applying for a new apartment and plan to ask the landlord for a reasonable accommodation. Would you be comfortable writing a letter confirming that I have a disability related need for her? I would prefer it not include my diagnosis."

Then let them respond. They may want to talk it through over a session, ask how long you have had the animal, or explain what they can and cannot put in writing. That conversation is part of a real evaluation, not a hurdle.

What should the letter include?

A useful letter is on the clinician's letterhead and includes their name, license type, license number, issuing state, date and signature. It states that you have a disability and a disability related need for the named animal, without disclosing your diagnosis.

Some states add items. California and Arkansas want the license effective date and jurisdiction, Louisiana wants the letter's own effective date, and Iowa's written finding includes issue and expiration dates plus a statement about whether a separate fee was paid for the finding. If your clinician has never written one, you can share our sample letter as a reference for format. The wording should still be theirs.

What if they say no?

A no is common, and it is often about policy rather than you. Many hospital systems, community clinics and group practices do not let staff write accommodation letters. Some clinicians feel they have not seen you long enough, or that the request falls outside the reason you see them.

Ask, politely, what would change their answer. They might be willing after a few more sessions, or they could refer you to a colleague. You can also ask whether they would complete a form your housing provider or school supplies, which some clinicians find easier than drafting a letter.

If the door stays closed, a separate evaluation is a reasonable next step. Pet ESA Service connects you with a licensed mental health professional licensed in your state, who reviews your assessment and talks with you by phone or video when your state's rules or their judgment call for it. Our page on how an online evaluation works explains each step.

What about states with waiting periods or license rules?

Some states make an existing provider especially valuable. Louisiana's Act 558 of 2024 requires a 30 day therapeutic relationship with at least two sessions, in person or remote, plus a Louisiana license or a compact license. California's Health and Safety Code 122318 requires a 30 day relationship and a clinical evaluation before a practitioner documents a need for an emotional support dog.

Colorado adds an in person rule: under C.R.S. 12-245-229, mental health licensees and nurses must have met you in person before making a written finding, while physicians may use telemedicine. Kentucky's KRS 383.085 looks for a Kentucky licensed provider with an active Kentucky practice. If you are starting fresh in one of these states, expect the process to take longer.

Ready for a next step?

If your current provider cannot help, or you do not have one, you can start the free assessment. It takes about 5 to 10 minutes, there is no payment to start, and a clinician licensed in your state decides whether documentation is appropriate. If they do not approve your completed assessment, you receive a full refund of the evaluation payment.