How to spot a legitimate ESA letter service before you pay

What makes an ESA letter legitimate in 2026?

A legitimate letter is the written result of a clinical evaluation. A licensed mental health professional reviews your history and current symptoms, decides whether you have a disability related need for an animal, and puts that conclusion in writing with their name, license number, license type and issuing state. If the evaluation does not support a letter, a legitimate provider tells you so.

The bar went up this year. On May 22, 2026, HUD told its fair housing staff to find reasonable cause only for animals individually trained to do work or perform tasks, and the memo's appendix points to a complaint built on an online form letter that ended in a no cause finding. HUD also wrote that an entire industry has emerged to convert pets into emotional support animals, which tells you how closely letters are now being read.

The Fair Housing Act itself did not change, and state agencies in California, Massachusetts, South Carolina and Maryland have said their laws still protect untrained ESAs. Those agencies, colleges and courts still look at the letter, and they give it more weight when it reflects a real evaluation by someone licensed in your state. Our explainer on HUD's 2026 guidance walks through what changed.

What are the red flags of a fake ESA letter service?

Any one of these signs is worth a closer look. Two or more together usually mean the business is selling paper rather than clinical care.

• Approval is promised, or the site says nearly everyone qualifies, before a clinician has seen your answers.
• A letter is offered within minutes, or before any clinician contact, even in states that require a relationship period.
• The main product is a certificate, ID card, vest bundle or registry listing presented as the thing that makes your animal an ESA.
• No clinician name or license number appears anywhere, and the site will not say which state boards its clinicians are licensed with.
• Checkout adds a membership, subscription or annual auto renewal that is easy to miss.
• The refund policy is vague, or refunds apply only after a landlord rejects the letter in writing.
• The site says one letter works in every state, promises airline cabin access, or claims your animal can go anywhere a service dog can.

Why some states reject letters from paid letter websites

Several legislatures have written the letter mill problem directly into law. These rules do not ban telehealth. They target documents issued without a genuine clinical relationship or by businesses whose main product is the letter itself.

If your state appears below, the rules shape which providers can help you and how long the process takes. Check your state's page on our state law hub before you choose a service.

Questions to ask before you pay

A trustworthy service answers these questions on its website, before you enter a card number. If you have to dig through terms and conditions to find the refund rule or the clinician's state, treat that as an answer too.

• Who will evaluate me, and is that person licensed in my state?
• Will there be a phone or video conversation if my state or the clinician requires one?
• What is the total price, and is it a one time fee or a recurring charge?
• What happens to my payment if the clinician decides a letter is not appropriate?
• What will the letter show, and how can my housing provider verify it?
• How is my health information stored, and who can see it?

What does a real ESA letter show?

A real letter is short, specific and verifiable. It identifies the clinician, the license and the animal, and it states your disability related need without disclosing a diagnosis. Housing providers generally do not need your diagnosis, and several state laws, including Florida's, bar them from asking for it.

You can preview the format on our sample letter page. If a document is missing a license number or lists a license from a state where you do not live, ask questions before you rely on it.

• The clinician's full name and credentials
• License number, license type, issuing state and, where a state requires it, the license effective date
• The date the letter was signed
• A statement that you have a disability and a disability related need for the animal
• The animal or animals the letter covers
• Contact details for verification and the clinician's signature

How Pet ESA Service answers these questions

We built our process around the checklist above. The assessment is free and takes about 5 to 10 minutes, and you pay only when you choose an evaluation. A licensed mental health professional licensed in your state reviews your answers and connects with you by phone or video when your state's rules or their clinical judgment call for it.

Prices are one time with no subscription: $89 for one pet, $109 for two, $129 for three, $149 for four, $79 for a renewal and $99 for a psychiatric service dog evaluation. If the clinician does not approve your completed assessment, you receive a 100 percent refund of the evaluation payment. Payment pays for a clinician's time and judgment, never for a predetermined outcome. Every price is listed on our pricing page.

If you want to find out whether an evaluation makes sense for you, start the free assessment. You will see exactly what a clinician needs from you before you spend anything.