The short answer is
Indiana law protects both service animals and emotional support animals (ESAs) under federal fair housing law, but the two aren't treated the same way—and that matters for your rental situation. Service animals get broader protections, while ESAs require documentation and landlord approval. Your state doesn't have a separate service animal statute that goes beyond federal law, so you're looking at the Fair Housing Act (FHA) as your main shield.
Here's what the law actually says
The federal Fair Housing Act—which Indiana landlords must follow—defines a service animal as a dog (sometimes a miniature horse) that's been trained to perform specific tasks related to a person's disability. The key phrase from the FHA is that the animal must have a "direct relationship" to the tenant's disability and perform "disability-related work or tasks." That means the dog alerts you to seizures, guides you if you're blind, or retrieves items if you use a wheelchair. The animal itself isn't what helps you—the training is what counts.
Emotional support animals (ESAs) are different. They provide comfort by their mere presence, not through trained tasks. Under the FHA, landlords must make reasonable accommodations for ESAs if you have a disability and the animal has a disability-related purpose. But here's where it gets tricky: landlords can ask for documentation. They can request a letter from a licensed mental health professional confirming you have a disability-related need for the animal.
Indiana doesn't have its own state-level service animal law that expands on the federal rules. Some neighboring states do—Ohio, for example, has specific protections under Ohio Revised Code §955.01 for service dogs—but Indiana legislators haven't created a separate statute. That actually means you're protected equally across all of Indiana under the FHA, regardless of whether your city or county tries to add local restrictions.
Why the difference between service animals and ESAs matters to your lease
Look, your landlord can charge a pet deposit for your regular dog. But they can't charge a pet deposit for your legitimate service animal. Not a dime. Under FHA rules, service animals aren't considered pets. If your landlord says "that'll be $300 for the dog," they're breaking federal law. Full stop.
With an ESA, the situation changes slightly. Your landlord can still require that you follow breed or size restrictions that apply to all tenants—though those restrictions have to be truly necessary and not discriminatory. But if you provide proper documentation from a licensed therapist or doctor saying you need that specific animal for a disability, the landlord has to make a reasonable accommodation. They can't charge you a pet fee for the ESA, and they can't enforce a "no animals" clause against you.
The practical difference: a service dog is essentially invisible to lease terms. An ESA requires a conversation and proof, but once you've provided legitimate documentation, your landlord's hands are tied.
What documentation do you actually need?
Here's the thing: for a service animal, your landlord ccan'task for documentation. They can observe the dog working and ask "Is that a service animal?" and "What task does it perform?" That's it. They can't demand a certification (because there's no official federal registry), a letter from a doctor, or proof of training. If you tell them it's a service animal, they have to accept that unless it's obvious the dog is just a pet.
For an ESA, your landlord can ask for a letter from a treating healthcare provider—a doctor, psychiatrist, therapist, or other licensed professional. The letter should confirm you have a disability-related condition and that the animal provides a necessary accommodation. Indiana doesn't regulate what that letter must contain, so you don't need a specific form. A genuine letter from your provider stating those facts is enough.
Here's what landlords in Indiana often get wrong: they sometimes ask for proof that the ESA is "trained" or "certified." That's not required. ESAs don't need training certificates. They don't go to obedience school. They just need to have a documented disability-related purpose.
What if your landlord says no?
If you've presented legitimate documentation for an ESA and your landlord refuses the accommodation, that's potential discrimination under the FHA. You'll want to document everything—keep copies of your letter, the lease, and any written communications from your landlord rejecting your request.
In Indiana, you can file a fair housing complaint with the Indiana Civil Rights Commission. Indiana Code §22-9-1-1 sets up the commission's authority to investigate discrimination claims. The filing deadline is typically one year from the date of the violation, though the federal FHA allows three years. You don't need a lawyer to file; the commission investigates at no cost to you. You can also file directly with the U.S. Department of Housing and Urban Development (HUD), which oversees federal fair housing law nationwide.
If your case goes to litigation, Indiana courts apply FHA standards. There's no separate Indiana statute that changes how courts weigh these cases, so your rights are the same as they'd be in Ohio, Kentucky, or Illinois—all neighbors that follow the same federal baseline.
A practical note about neighboring states
If you're moving to Indiana from Ohio or Kentucky, you might've heard about extra protections in those states. Ohio's service dog statute, for instance, includes criminal penalties for fraudulent misrepresentation of service animals. Indiana doesn't have that. What Indiana does have is the same federal protection everyone gets, applied consistently across the state without extra state-level complications. That's actually simpler for you.
The one place to watch: some Indiana municipalities have local ordinances about dangerous dogs or breed restrictions. Those still apply to service animals and ESAs only if they're not breed-neutral and disability-related. (More on this below.) If your ESA is a restricted breed and the local law is truly about public safety (not disability discrimination), your landlord might need to work with your city's rules. But the FHA still requires reasonable accommodation even in those situations.
Your next step
If you have a service animal, gather any documentation you have about the dog's training (even informal notes help) and include it with your rental application. If you have an ESA, contact your healthcare provider today and ask if they'll write a letter confirming your disability-related need for the animal. Give them a few days' notice and let them know you need it for a housing accommodation. Once you have that letter, provide it to your landlord in writing (email is fine) and keep a copy for yourself. Don't wait until after you've signed the lease or moved in—transparency upfront prevents conflicts later.