Pet Deposits, Pet Rent & ESA Rules in Connecticut 2026
State pet-deposit treatment, federal Fair Housing Act assistance-animal rules, and what Connecticut landlords can and cannot ask.
In Connecticut, how you handle an animal depends entirely on which of three categories it falls into: an ordinary pet, an ADA service animal, or an emotional support animal (ESA). Pets are a business decision you control. Service animals and ESAs are not pets in the eyes of the law, they are reasonable accommodations for a disability, governed by the federal Fair Housing Act and Connecticut's fair housing statute, CGS §46a-64c, which the Connecticut Commission on Human Rights and Opportunities (CHRO) enforces.
Connecticut does not force you to accept ordinary pets, and it has no unusual pet-specific landlord rules of its own. The friction almost always comes from the assistance-animal side, where the same pet policies you are free to set, no-pet clauses, breed limits, pet rent, pet deposits, cannot be applied. Getting the category right is what keeps you out of a discrimination complaint.
How Connecticut Treats Pet Deposits
Total security deposit capped at 2 months' rent (1 month if tenant is 62+). Pet deposits count toward this cap; no separate pet deposit allowance.
Ordinary pets: your policy, your call
Connecticut has no law requiring landlords to allow pets, and no state statute imposes special pet rules beyond ordinary contract and fair-housing limits. For a true pet, you may prohibit animals entirely, cap the number, restrict by breed or weight, and charge pet rent or a pet deposit. Put the terms in the lease and apply them consistently to every applicant.
One Connecticut-specific constraint: any pet deposit is still a security deposit and counts inside the statutory cap. Under CGS §47a-21, your total security deposit cannot exceed two months' rent, or one month's rent if the tenant is 62 or older. A separate 'pet deposit' stacked on top of a full two-month deposit is unlawful. None of these pet controls may be applied to a service animal or an approved ESA.
Service animals vs. emotional support animals
The two categories are governed by different laws, and the distinction drives what you can ask. Under the ADA (adopted into Connecticut law through CGS §22-345 and the public-accommodation statutes CGS §46a-44 and §46a-64), a service animal is a dog, or in limited cases a miniature horse, individually trained to perform a task for a person with a disability, such as a guide dog or a medical-alert dog. Connecticut's access statutes historically focus on people who are blind, deaf, or mobility-impaired.
An emotional support animal provides comfort by its presence but is not trained to perform a task. ESAs are not ADA service animals and carry no public-access rights, you are not required to admit one to a store or office. In housing, however, the Fair Housing Act treats both service animals and ESAs as assistance animals, and your accommodation duty under CGS §46a-64c is the same for each. ESAs are not limited to dogs; cats and other common household animals qualify.
No pet fees for assistance animals, but you can recover for damage
This is where most Connecticut landlords slip. Once an animal is an approved service animal or ESA, it is not a pet, so no pet rent, no pet deposit, and no pet fee may be charged, even if your lease has a no-pet clause or a breed restriction. You also cannot demand a higher security deposit because of the animal.
What you can do is charge for actual damage the animal causes, provided you charge all tenants for damage on the same basis. HUD's Assistance Animals Notice (FHEO-2020-01) is explicit on this point, and Connecticut's public-accommodation statutes similarly preserve a provider's right to recover for property damage caused by an animal. Document the move-in condition, and bill damage against the ordinary security deposit like any other tenant-caused harm, not as a pet penalty.
What you may ask for, and what you may not
For a service animal whose need is not obvious, you may ask only two questions: (1) is the animal required because of a disability, and (2) what work or task has it been trained to perform. You may not ask about the disability itself, demand the dog demonstrate the task, or require papers.
For an ESA, or any animal where the disability or the disability-related need is not apparent, you may request reliable documentation from a licensed health care provider who has a therapeutic relationship with the tenant, confirming the disability and the need for the animal. You may not require a specific diagnosis, medical records, a particular form, or any 'certification.' No registry, ID card, vest, or online certificate is recognized under the law as proof, those paid registrations mean nothing and are not required. Treat generic letters from sites whose only service is selling ESA letters, with no genuine evaluation, with appropriate skepticism, but do not reject a facially valid letter from a treating provider.
When you can lawfully deny an assistance animal
The accommodation duty is not absolute. Under FHA standards and CGS §46a-64c, you may deny a specific animal if it poses a direct threat to the health or safety of others, would cause substantial physical damage to property, or would impose an undue financial and administrative burden. The assessment must be based on the individual animal's actual conduct, documented aggression, history of biting, not on breed, size, or generalized fear. A blanket 'no pit bulls' or weight cap cannot be applied to an assistance animal.
Denials are where liability concentrates. A wrongful refusal is a discriminatory housing practice enforced by the CHRO, and a violation of §46a-64c is a Class D misdemeanor on top of any civil exposure. Before denying, respond promptly to the request, engage in the interactive process, request only the documentation the law permits, and keep a written record of the specific, individualized basis for your decision.
The Cost of Mishandling a Connecticut ESA Request
The most common mistake in Connecticut ESA cases is responding with a flat denial, "no pets means no pets", instead of engaging in the interactive process. The interactive process is itself a substantive duty. A landlord who refuses to consider the request, demands more documentation than HUD permits, or imposes a pet fee on an accepted assistance animal will lose at HUD even if the underlying accommodation could have been reasonably denied on its merits.
City-Level Eviction Risk in Connecticut
Pet-related eviction filings correlate with overall landlord-tenant litigation rates. View landlord risk and tenant-law profile by city:
Sources & Methodology
- Federal Fair Housing Act: 42 U.S.C. § 3604(f)(3)(B); 24 C.F.R. § 100.204; 24 C.F.R. § 180.671.
- HUD guidance: HUD FHEO Notice 2020-01 (Jan 28, 2020), assistance animals as a reasonable accommodation.
- ADA service animals: 28 C.F.R. § 36.302 (Title III, public accommodations).
- Connecticut pet deposit rule: C.G.S. § 47a-21(b).
Related Guides for Connecticut Landlords
This overview reflects Connecticut's fair housing statute (CGS §46a-64c), the state's service-animal access statutes (CGS §46a-44, §46a-64, and the definition in §22-345), the security-deposit cap in CGS §47a-21, the federal Fair Housing Act, and HUD's Assistance Animals Notice (FHEO-2020-01, January 28, 2020). Statutes and agency guidance change and individual accommodation requests turn on their specific facts. Confirm current requirements with the Connecticut Commission on Human Rights and Opportunities (CHRO) or a Connecticut housing attorney before denying a request or drafting policy. This page is general information, not legal advice.
Frequently Asked Questions
Can a Connecticut landlord charge a pet deposit or pet rent for an emotional support animal?
No. An approved ESA or service animal is treated as a reasonable accommodation, not a pet, so pet deposits, pet rent, and pet fees are prohibited under the FHA and CGS §46a-64c, even if your lease has a no-pet clause. You may still charge the tenant for actual damage the animal causes if you charge all tenants for damage on the same basis.
Do I have to allow pets in my Connecticut rental?
No. Connecticut has no law requiring landlords to allow pets. You may adopt a no-pet policy or set breed, weight, number, and fee terms for ordinary pets. Those restrictions cannot be applied to a service animal or an approved emotional support animal, which are not pets under the law.
What documentation can I request for an ESA?
If the disability or the need for the animal is not obvious, you may request reliable documentation from a licensed health care provider who has a therapeutic relationship with the tenant, confirming the disability and the disability-related need. You may not require a specific diagnosis, medical records, a particular form, or any registration or certificate. No 'service animal registry' or ID card is recognized as proof.
Can I deny an assistance animal because of its breed or size?
No. Denials must be based on the individual animal's actual conduct, for example a documented history of aggression, not on breed or weight. You may deny a specific animal only if it poses a direct threat to health or safety, would cause substantial physical property damage, or imposes an undue financial and administrative burden.
What's the difference between a service animal and an emotional support animal in Connecticut?
A service animal is a dog (or in limited cases a miniature horse) individually trained to perform a task for a person with a disability, and it carries ADA public-access rights under CGS §22-345, §46a-44, and §46a-64. An ESA provides comfort but is not task-trained and has no public-access rights. In housing, both are 'assistance animals' under the FHA and CGS §46a-64c, so your accommodation duty is the same for each.
What happens if I wrongfully refuse a tenant's assistance animal?
A wrongful refusal is a discriminatory housing practice enforced by the Connecticut Commission on Human Rights and Opportunities (CHRO). A violation of CGS §46a-64c is a Class D misdemeanor, and you may also face civil liability. Respond to requests promptly, ask only for permitted documentation, and document the individualized basis for any denial.
Federal authority: 42 U.S.C. § 3604(f)(3)(B); 24 C.F.R. § 100.204; HUD FHEO Notice 2020-01. State authority: C.G.S. § 47a-21(b). Last updated October 23, 2026. For informational purposes only, not legal advice. Pet and assistance-animal questions are highly fact-specific; consult a licensed Connecticut attorney before refusing any request.