Key takeaway: To get an ESA letter, see a licensed mental-health professional, ideally one who already treats you, who evaluates whether you have a disability and whether an emotional support animal helps with it. If so, they write and sign the letter. No registration, test for the animal, or certificate is involved.
The letter is most useful for a housing accommodation request, and since HUD’s 2026 enforcement change, a letter from a clinician who knows you matters more than ever.[3] In some states, like California, the clinician must have treated you for at least 30 days first.[2]
How do you get an ESA letter?
Four steps: confirm you may qualify, get evaluated by a licensed clinician, receive a signed letter if appropriate, and use it in a written housing request.
- Check whether you may qualify. The letter is for a mental or emotional condition that substantially limits daily life. See who qualifies.
- Get a real evaluation. Ask your current therapist, psychiatrist, or counselor first. If you don’t have one, find a clinician licensed in your state who will actually assess you (see telehealth).
- Receive the letter, if appropriate. A good clinician can say no. If they say yes, the letter should include the details in our annotated ESA letter sample.
- Use it in writing. Send a reasonable-accommodation request to your landlord with the letter attached, and keep copies. Read ESA housing rights in 2026 before you do.
Who qualifies for an ESA letter?
You qualify when a licensed clinician finds that you have a disability, meaning a mental or emotional impairment that substantially limits a major life activity, and that an emotional support animal helps with it.
The Fair Housing Act defines a handicap as “a physical or mental impairment which substantially limits one or more of such person’s major life activities.”[1] There is no official list of qualifying diagnoses. Clinicians commonly write ESA letters for:
- Anxiety disorders, including generalized anxiety, panic disorder, and social anxiety
- Depression and other mood disorders
- Post-traumatic stress disorder (PTSD)
- Phobias and agoraphobia
- Obsessive-compulsive disorder, bipolar disorder, and some autism-spectrum and adjustment-related conditions
A diagnosis alone isn’t enough. The clinician has to connect your condition to what the animal does for you. That is why no online quiz can qualify you.
Who can write an ESA letter?
A licensed mental-health professional who is licensed in the state where you live and who has evaluated you. That usually means a psychologist, psychiatrist, licensed clinical social worker (LCSW), licensed marriage and family therapist (LMFT), licensed professional counselor (LPC or LMHC), or psychiatric nurse practitioner. Some primary-care physicians write them too.
State law can add requirements. In California, a practitioner documenting a need for an emotional support dog must hold a valid license in the client’s jurisdiction, list the license number, type, jurisdiction, and effective date, “establish a client-provider relationship with the individual for at least 30 days prior to providing the documentation,” and complete a clinical evaluation.[2] Our blog has a longer look at who can write an ESA letter, including nurses and physicians.
Can you get an ESA letter online?
Yes, through a real telehealth evaluation with a clinician licensed in your state. An instant letter based only on a quiz is a different thing and carries much less weight.
Remote care is legitimate. HUD’s 2020 guidance, now rescinded, put it this way: “many legitimate, licensed health care professionals deliver services remotely, including over the internet.” It contrasted that with documentation sold to “anyone who answers certain questions or participates in a short interview and pays a fee.”[4] The same line still separates useful letters from useless ones.
| Your own provider | Telehealth evaluation | Instant online letter | |
|---|---|---|---|
| Knows your history | Yes | Partly, from the evaluation | No |
| Licensed in your state | Usually | Should be; verify it | Often unclear |
| Meets 30-day rules (e.g., CA) | Usually | Only with an ongoing relationship | No |
| Weight with a skeptical landlord | Strongest | Moderate | Weakest |
How much does an ESA letter cost?
The cost follows the clinician’s time. If you already see a provider, asking can cost little or nothing beyond a regular visit. A telehealth evaluation typically costs about what a mental-health consultation costs, and prices vary widely, so compare what you get, not just the price.
Be skeptical of very cheap or “guaranteed” letters and of add-ons. Registrations, certificates, ID cards, and vests add cost without adding any legal value; see is ESA registration real? If you see a free fill-in-the-blank ESA letter PDF, remember that a letter you write yourself is not a clinician’s letter.
How long does it take to get an ESA letter?
From your own provider, it can be as quick as your next appointment. With a new clinician, expect at least an evaluation and follow-up, and in states with relationship rules, longer. California requires a client-provider relationship of at least 30 days before documentation for an emotional support dog.[2] If you need the letter for a move-in date, start early, and don’t trust anyone promising same-day approval with no real evaluation.
Letters don’t carry a federal expiration date, but landlords commonly ask for a recent one. Our blog covers how long an ESA letter is valid.
What are the red flags of a fake ESA letter service?
Walk away if the service promises guaranteed approval, skips a real evaluation, won’t name the clinician, or leads with registrations, IDs, and vests.
- “Instant” or guaranteed approval before anyone has evaluated you
- No named clinician whose license you can look up on your state board’s website
- A signer licensed in a different state from where you live
- Upsells for registration numbers, certificates, ID cards, or vests
- Promises that a letter will waive pet fees or let your pet go anywhere. Neither is true; see ESA housing rights in 2026
Some ESA sellers now face lawsuits over exactly these claims; see our fact-check of Support Pets.
What do you do once you have an ESA letter?
Attach it to a written reasonable-accommodation request to your landlord, keep copies of everything, and know what the letter can and can’t do in 2026.
The letter documents a disability-related need. It doesn’t register your pet, give it public-access rights, or get it into an airplane cabin; ESAs fly as pets. And since May 22, 2026, HUD says it will only find reasonable cause in animal-accommodation cases “involving animals trained to provide disability-related assistance,”[3] so a denial for an untrained ESA may need to be pursued through state law or a private lawsuit. If you need an animal for specific tasks, read about psychiatric service dogs.
Frequently asked questions about getting an ESA letter
Can my therapist write an ESA letter?
Yes. If you already see a licensed therapist and they believe an emotional support animal helps with a disability-related need, they are usually the best person to write it, because they know your history.
Can I get an ESA letter online?
Yes, through a real telehealth evaluation by a clinician licensed in your state. Letters issued after a quiz with no meaningful evaluation carry little weight, and in states like California they may not meet the law’s 30-day relationship rule.
What disabilities qualify for an emotional support animal?
There is no official list. Clinicians commonly write ESA letters for anxiety disorders, depression, PTSD, phobias, OCD, and bipolar disorder. What matters is that the condition substantially limits a major life activity and the animal helps with it.
Can I get an ESA letter for free?
Sometimes. If you already see a provider, asking may cost nothing beyond a regular visit. A fill-in-the-blank PDF you complete yourself is not an ESA letter, because no clinician evaluated you.
Do I need a new ESA letter after HUD’s 2026 change?
Not necessarily. A letter from a licensed clinician still documents your need. HUD’s change affects federal enforcement, not what the letter says. Many landlords ask for a recent letter, so a current one from a clinician who knows you is strongest.
Does an ESA letter need to name my diagnosis?
A letter usually does not need to name a specific diagnosis. It should state that you have a disability-related need for the animal and include the clinician’s license details, signature, and date.
Sources
We checked every quotation on this page against the source listed here. Laws and agency guidance change; dates show when each source was accessed or issued.
- Fair Housing Act definitions, 42 U.S.C. § 3602(h). Cornell LII.
- California Board of Behavioral Sciences, “Law Change Regarding Emotional Support Animals: What BBS Licensees Need to Know” (AB 468; Health and Safety Code §122318, effective Jan. 1, 2022).
- HUD Office of Fair Housing and Equal Opportunity, enforcement guidance on animal accommodations (May 22, 2026). PDF on hud.gov.
- HUD, FHEO Notice FHEO-2020-01 (Jan. 28, 2020), “Documentation from the Internet”; rescinded Sept. 17, 2025. Archived PDF.