What Animals Can Be Emotional Support Animals?

Updated October 26, 2026 · 6 min read

Short answer

In housing, an emotional support animal can be any species, because the Fair Housing Act doesn't limit assistance animals to dogs. Dogs, cats, rabbits, birds, guinea pigs and other small household animals are all possible. The ADA and airline rules are narrower: only trained dogs (and, under the ADA, trained miniature horses) count as service animals there.

The answer to "can my animal be an ESA?" depends on where you want the animal to go. Housing law is broad. Air travel and public access rules are narrow. Most confusion comes from mixing the two.

In housing: any species can qualify

The Fair Housing Act doesn't define emotional support animals by species. The Justice Department's ADA guidance makes the point directly: the ADA's narrow definition of a service animal doesn't limit the broader definition of "assistance animal" under the Fair Housing Act.

That means a request to keep a cat, rabbit, bird or other animal as an emotional support animal is a reasonable accommodation request like any other. What matters is whether you have a disability and a disability-related need for the animal, documented by a licensed clinician when the disability isn't obvious.

Two points shape how that works in 2026:

HUD's May 2026 guidance presumes a request is reasonable only when the animal is trained to do disability-related tasks. HUD still accepts species other than dogs if they're trained for such a task. For an untrained ESA of any species, the request isn't presumed reasonable, so state law and your landlord matter more.
Every request is judged individually. The 2004 HUD and Justice Department joint statement says a landlord can refuse an accommodation that would impose an undue financial and administrative burden or fundamentally alter their operations, decided case by case.

Common emotional support animals

Dogs. The most familiar choice, with the most housing questions attached, such as breed and size rules. See our emotional support dog guide.
Cats. Quiet, indoor and well suited to apartments. See emotional support cats.
Rabbits. Gentle and quiet, and comfortable in smaller homes with the right setup.
Birds. Often affectionate and interactive. Some species are loud, which matters with shared walls.
Guinea pigs, hamsters and other small mammals. Modest space needs and quiet, which suits shared buildings.
Fish and turtles. Quiet and contained, though tanks need a stable spot and regular care.

HUD's own pet rule for federally assisted housing for older adults and people with disabilities gives a useful picture of everyday household animals. It defines a common household pet as a domesticated animal such as a dog, cat, bird, rodent (including a rabbit), fish or turtle, and excludes reptiles other than turtles. That rule is about pets. The same regulation says its pet rules don't apply to animals that assist, support or provide service to people with disabilities.

Less common animals

There is no federal list of approved ESA species. In practice, the more unusual the animal, the more questions a landlord is likely to ask, and the more the request depends on the details:

Safety. A venomous snake or a large animal raises different questions than a hamster.
The property. Space, noise, odor and potential damage all count in whether a request is reasonable.
Local law. Many cities and counties regulate livestock, exotic animals and wildlife. Check local rules before getting an animal that may not be practical, or permitted, where you live.
Your clinician's view. The letter documents your need for an animal. A clinician will consider whether the animal you have, or plan to get, fits that need.

If you have a less common animal, give the landlord a clear, practical request: what the animal is, how it's housed, how you'll keep it clean and quiet, and its vet records.

On planes: dogs only

The Department of Transportation's air travel rule defines a service animal as a dog, regardless of breed or type, that is individually trained to do work or perform tasks for a person with a disability. It allows airlines to recognize emotional support animals as pets. So a cat, rabbit or bird travels under the airline's pet policy, if the airline accepts that species at all. Our flying guide has the details.

In public places: trained dogs and miniature horses

Under the ADA, a service animal is a dog individually trained to do work or perform tasks related to a person's disability. The regulation says other species, whether wild or domestic, trained or untrained, aren't service animals. Emotional support, comfort and companionship don't count as tasks.

The ADA rules have one separate provision: businesses must make reasonable modifications to allow a miniature horse that has been individually trained to do work or perform tasks for a person with a disability, weighing factors like the horse's size and the facility. Miniature horses generally stand 24 to 34 inches at the shoulder and weigh 70 to 100 pounds.

So in stores, restaurants and other public places, an emotional support animal of any species has no ADA right of entry. Some state or local laws go further, so check yours. Our ADA guide explains public access in detail.

Does the animal need training?

Not to be an emotional support animal. An ESA helps through its presence, so no task training is required, whatever the species. Training changes the picture in two places, though. Under the ADA, a dog individually trained to perform disability-related tasks is a service animal with public access. And in housing, HUD's May 2026 guidance presumes a request is reasonable when the animal, of any species, is trained to do disability-related tasks. Basic manners still matter for every ESA: an animal that's quiet, clean and under control is far easier to keep in a rental.

Choosing the right animal

If you don't have an animal yet, think about fit before species:

How much time, space and money you can give it, including vet care.
Your housing: shared walls, outdoor space and what the building allows.
Allergies in your household.
How long the animal lives. Some birds and turtles live for decades.
What actually helps you. Some people need an animal they can hold or walk. Others are calmed by watching fish or caring for a small pet.

Frequently asked questions

Can a cat be an emotional support animal?

Yes. Under the Fair Housing Act, an emotional support animal can be any species, and cats are one of the most practical choices for apartments.

Can a rabbit or a bird be an emotional support animal?

Yes, for housing purposes. A request to keep a rabbit, bird or other small animal is handled like any other reasonable accommodation request. Airlines and businesses don't have to accept them as service animals.

Can a reptile be an emotional support animal?

Possibly. Federal housing law doesn't list approved species. A landlord can weigh safety, the property and local law, so an unusual animal may face more questions than a cat or dog.

Can I fly with an emotional support rabbit or cat?

Only as a pet. The Department of Transportation's rule defines a service animal as a trained dog and lets airlines treat emotional support animals as pets, so check the airline's pet policy.

Can I have more than one emotional support animal?

Yes, if each animal relates to your disability-related needs. Each one is part of the reasonable accommodation request. See our guide to multiple emotional support animals.

Does an emotional support animal need to be trained?

No. An ESA helps through its presence, so task training isn't required. An animal trained to perform disability-related tasks is treated differently: HUD presumes housing requests for trained animals reasonable, and trained dogs are service animals under the ADA.

Sources

Laws and agency positions change. We last checked this page against these sources on October 26, 2026. It is general information, not legal advice.

Find out whether you qualify for an ESA letter

Answer a few questions and a mental health professional licensed in your state reviews your assessment. If you're approved, your Fair Housing Act letter arrives as a PDF, typically within 24 to 48 hours of your evaluation.* $99 one-time, $25 per additional animal, $79 to renew each year. Full refund if you're not approved.

Apply Now Call (832) 979-0181

*Arkansas, California, Iowa, Louisiana and Montana require a 30-day client–provider relationship before a letter can be issued, so the letter issues after day 30.