The Fair Housing Act, Illinois state rules, and what your landlord can and can’t do — in plain language.
If you rent in Illinois, two layers of law shape your rights: the federal Fair Housing Act and Illinois’s own rules. This page walks through both in plain English.
Under the federal Fair Housing Act, housing providers across Illinois — whether in Chicago, Springfield, or a small town — must reasonably accommodate a valid emotional support animal, no-pet policy or not, and may not apply pet fees, deposits, or breed and size limits to it. The only carve-outs are small owner-occupied buildings of four units or fewer and certain single-family homes rented without an agent.
Illinois' Assistance Animal Integrity Act (310 ILCS 120), in effect since January 1, 2020, covers emotional support animals in housing. When a disability or need is not obvious, a housing provider may request written documentation from someone with a genuine therapeutic relationship with the tenant (online certificates issued without a meaningful assessment do not qualify), but may not require a specific diagnosis, charge pet fees or deposits, or require special insurance for the animal. The Illinois Human Rights Act also covers these accommodations and is enforced by the Illinois Department of Human Rights.
Last checked: October 13, 2026
State enforcement agency: Illinois Department of Human Rights
Your letter must come from a mental health professional licensed in Illinois after a genuine evaluation. Landlords may confirm the license is active; they may not ask for your diagnosis. Once approved, your signed letter is typically delivered in 10–15 minutes.
ESA protections stop at the front door of your home: there are no ADA public-access rights and, since 2021, no airline obligation. No registry, ID card, or vest is legally required in Illinois — such items are optional and carry no legal weight.
The Illinois Department of Human Rights enforces one of the broader state fair-housing laws in the country, alongside HUD’s Region V office in Chicago. Keep dated copies of your letter and every exchange — documented requests are the ones that win.
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No. Emotional support animals aren’t service animals under the ADA, so stores, restaurants, and offices in Illinois aren’t required to admit them. Task-trained psychiatric service dogs are different.
It can carry real penalties — a growing number of states punish fraudulent assistance-animal claims. The safe path in Illinois is the honest one: a real evaluation and a genuine letter.
HOAs and condo boards in Illinois are covered by the Fair Housing Act just like landlords, so blanket pet bans must yield to a valid ESA accommodation.
There’s no fixed legal limit — each animal must be supported by a documented, distinct need determined during your evaluation.
You’re. The FHA removes pet fees, not accountability: damage your animal causes in a Illinois rental is yours to cover.
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