Colorado Pet and ESA Laws: What Landlords Can and Cannot Charge
Colorado is one of the few states that caps pet deposits and pet rent for actual pets, and it bars any charge for a service animal or ESA. Here is how to stay compliant in 2026.
Animals in a Colorado rental fall into two very different legal buckets. An ordinary pet is governed by the lease and Colorado law, so a landlord can set pet rules and charge a pet deposit within any limit. A service animal or emotional support animal is not a pet under the federal Fair Housing Act, so the pet rules, fees, and breed limits do not apply – and confusing the two is where most landlord liability arises.
This guide covers Colorado pet deposits and fees, the difference between service animals and emotional support animals, the federal rule that an assistance animal is not a pet, the documentation you can request, and when you may deny an animal. If you are placing a new tenant, our overview of how to screen tenants step by step pairs well with the rules below.
Video: a plain-language walkthrough of Colorado pet and assistance-animal rules – pet deposits, the Fair Housing Act, and emotional support animals.
Key Takeaways: Colorado Pet and ESA Laws
- Pet deposits are capped at three hundred dollars and must be refundable, under House Bill 23-1068, effective in 2024.
- Pet rent is capped at thirty-five dollars per month or one and one-half percent of the monthly rent, whichever is greater.
- No fees for an assistance animal. A service animal or ESA is not a pet, so no deposit, fee, or pet rent – even within the caps – and no breed or weight limit, may apply.
- The tenant stays liable for actual damage the animal causes, even though no advance fee may be charged.
Pet Policies and No-Pet Clauses in Colorado
For an ordinary pet, a Colorado landlord has broad discretion. You may adopt a no-pet policy, limit the number or type of pets, set reasonable rules on size or behavior, and require a pet agreement as part of the lease. A pet clause that is clear and applied consistently is enforceable, and a tenant who keeps a pet in violation of it can be required to remove the animal or face the lease consequences.
The critical exception, which the rest of this guide explains, is that an assistance animal – a service animal or an emotional support animal – is not a pet under federal law, so none of these pet rules apply to it. Our overview of how to screen tenants step by step is a useful companion when you place a new tenant in the unit.
Pet Deposits, Pet Fees, and Pet Rent in Colorado
Colorado is one of the few states that caps pet charges for actual pets. Under House Bill 23-1068, effective in 2024, a landlord may charge a pet deposit of no more than three hundred dollars, which must be refundable, and pet rent of no more than thirty-five dollars per month or one and one-half percent of the monthly rent, whichever is greater. The caps apply to ordinary pets, regardless of the unit’s rent.
Assistance animals are exempt from any charge at all. Because a service animal or ESA is not a pet under the Fair Housing Act, a Colorado landlord may not charge a pet deposit, fee, or pet rent for one – not even within the House Bill 23-1068 caps – or apply a breed or weight limit. Our overview of Colorado security deposit laws covers the security-deposit rules that do apply.
Service Animals Versus Emotional Support Animals
Two kinds of assistance animal matter here, and the difference drives the rules. A service animal is a dog – or in some cases a miniature horse – individually trained to perform tasks for a person with a disability, such as guiding, alerting, or retrieving. An emotional support animal, or ESA, is an animal that provides therapeutic support for a person with a mental or emotional disability but is not trained to perform a specific task.
For housing, federal fair housing law treats both as assistance animals entitled to a reasonable accommodation – the service-animal versus ESA distinction matters more for public-accommodation access than for the rental unit. In the home, a landlord’s obligations to a service animal and to an ESA are largely the same, which is the key point this guide builds on.
An Assistance Animal Is Not a Pet in Colorado
Under the federal Fair Housing Act, an assistance animal is not a pet, and that single rule drives the housing analysis. A Colorado landlord must make a reasonable accommodation to a no-pet policy to allow a tenant with a disability to keep an assistance animal, and may not charge a pet deposit, a pet fee, or pet rent for it. Breed, size, and weight restrictions that apply to pets do not apply to an assistance animal either.
The tenant is still responsible for the animal. If the assistance animal causes actual damage beyond ordinary wear, the landlord may charge for that damage just as for any tenant-caused damage, and the tenant remains liable for the animal’s behavior. What the landlord may not do is charge a fee in advance simply because the animal is there. For the federal baseline on protected characteristics, see our Fair Housing Act guide for landlords.
Documentation You Can Request in Colorado
What you may ask for depends on how obvious the need is. If a person’s disability and the animal’s role are readily apparent – a guide dog for a tenant who is blind – you may not demand documentation. If the disability or the disability-connected need for the animal is not obvious, you may request reliable documentation that the tenant has a disability and that the animal provides support connected to that disability, typically a letter from a licensed health professional who knows the tenant.
What you may not do is demand a specific certificate, a registration number, or detailed medical records, or insist the animal be certified or professionally trained. There is no official assistance-animal registry, and an ESA needs no task training. Verify the disability and the need through a legitimate provider, then grant the accommodation.
When You Can Deny an Assistance Animal in Colorado
A reasonable accommodation is not unlimited. A Colorado landlord may deny a specific assistance animal if it poses a direct threat to the health or safety of others that cannot be reduced by another accommodation, or if it would cause substantial physical damage to property that cannot be reduced – based on that animal’s actual conduct, not on its breed or on speculation. A landlord may also decline a request that imposes an undue financial or administrative burden or fundamentally alters the housing.
The denial must rest on an individualized assessment of the particular animal, supported by objective evidence. A blanket refusal of a breed, or a denial because the landlord doubts the need without engaging the documentation process, is where liability arises. When in doubt, engage the interactive process rather than refusing outright.
Misrepresentation and Colorado Law
Colorado relies on the federal framework and the documentation process for assistance animals rather than a standalone criminal misrepresentation statute. When the need is not obvious, a landlord may request reliable documentation that the tenant has a disability and that the animal provides support connected to it, typically a letter from a licensed professional.
The landlord may verify that the documentation is legitimate but may not demand registration, certification, or a specific form of proof. Evaluating the documentation, rather than refusing the animal, keeps the decision compliant – and the House Bill 23-1068 pet caps never apply to an assistance animal in the first place.
Pet Rules, Assistance Animals, and Fair Housing in Colorado
Assistance-animal rules are a subset of fair housing compliance. Refusing a reasonable accommodation, charging an assistance-animal tenant a fee a pet owner would pay, or applying a harsher standard because of disability is discrimination under the federal Fair Housing Act, which applies in Colorado regardless of the state’s own animal rules. The same is true if animal rules are used as a pretext to exclude families with children or another protected class.
The safeguard is a written policy applied uniformly: pet rules for pets, the accommodation process for assistance animals, and consistent treatment of every applicant. Apply the same even-handed discipline to animal requests that you apply to screening, and document each decision.
Screening and a Clear Animal Policy
A clear animal policy and good screening work together. Decide in advance how you handle pets and how you handle assistance-animal accommodations, put both in writing, and apply them the same way to everyone. That consistency is what keeps an animal decision defensible and a denial out of fair housing trouble.
Screening itself stays the same regardless of an animal: get written consent, pull a consumer report for a permissible purpose under the federal Fair Credit Reporting Act, and send an adverse action notice if the report drives a denial. Our Colorado tenant screening laws page and the broader tenant screening laws by state guide cover the screening half of the picture, whether you rent in Colorado or anywhere else.
A Compliant Colorado Pet and Assistance-Animal Process
Turn the rules into one repeatable sequence. First, set a written pet policy – whether pets are allowed, any deposit or fee within the legal limit, and the pet rules. Second, treat every assistance-animal request separately from the pet policy. Third, if the need is not obvious, request reliable documentation of the disability and the animal’s role, and nothing more. Fourth, grant the accommodation without a pet deposit, fee, or breed or weight limit, while holding the tenant responsible for any actual damage. Fifth, deny only on an individualized direct-threat or substantial-damage finding, and document it.
Handled this way, animal requests in Colorado are routine. The same discipline that keeps screening defensible – objective standards, applied uniformly, documented – keeps an assistance-animal decision defensible too, and it is the documented process, not an instinct about a particular animal, that decides a dispute.
Common Mistakes That Create Liability
The recurring Colorado errors are charging a pet deposit or pet rent for an assistance animal, applying a breed or weight limit to one, demanding certification or a registry number that does not exist, refusing an animal based on its breed rather than its actual conduct, and treating an ESA request as a pet request. Almost every one turns on the rule that an assistance animal is not a pet, which is where fair housing law actually bites.
An assistance animal is not a pet. In Colorado you may not charge a pet deposit, fee, or rent for a service animal or ESA, or apply breed or weight limits. Request documentation only when the need is not obvious, deny only on an individualized direct-threat finding, and keep the tenant liable for actual damage.
Documentation and Recordkeeping in Colorado
Because Colorado animal decisions are measured against the Fair Housing Act, your records are what prove you complied. Keep the written pet policy, every assistance-animal request and the documentation you relied on, your accommodation decision and its basis, and a record of any damage the animal actually caused. That file is the answer to a tenant who alleges a refused accommodation or an improper fee.
Keep your denials especially well documented – the individualized assessment, the objective evidence of a direct threat or substantial damage, and the interactive process you followed. If a tenant or a fair housing investigator questions a decision, that record is your strongest rebuttal.
Set one animal policy and one accommodation process, and apply them to every tenant. A consistent record of requests, documentation, and decisions gives you the evidence to answer a complaint or a fair housing inquiry. Our guide to verifying tenant income rounds out the financial side of managing a tenancy in Colorado.
Do
- ✓Put your pet policy – allowed or not, any deposit or fee within the legal limit, and the rules – in the written lease.
- ✓Treat every service-animal or ESA request as a reasonable-accommodation request, not a pet request.
- ✓Waive pet deposits, fees, and breed or weight limits for an assistance animal.
- ✓Request reliable documentation only when the disability or the animal’s role is not obvious.
- ✓Hold the tenant responsible for any actual damage the animal causes.
Avoid
- ✕Charge a pet deposit, pet fee, or pet rent for a service animal or emotional support animal.
- ✕Apply a breed, size, or weight restriction to an assistance animal.
- ✕Demand certification, registration, or a certificate that federal law does not require.
- ✕Deny an assistance animal based on its breed rather than its actual conduct.
- ✕Treat an ESA accommodation request as if it were a request to keep a pet.
Colorado Pet and ESA Laws: FAQ
Does Colorado cap pet deposits?
Yes. Under House Bill 23-1068, effective in 2024, a pet deposit may not exceed three hundred dollars and must be refundable. This cap applies to ordinary pets, not assistance animals.
How much pet rent can a Colorado landlord charge?
No more than thirty-five dollars per month or one and one-half percent of the monthly rent, whichever is greater, under House Bill 23-1068.
Can a Colorado landlord charge a fee for an emotional support animal?
No. An ESA is an assistance animal, not a pet, so no pet deposit, fee, or rent may be charged – not even within the House Bill 23-1068 caps – and no breed or weight limit applies.
Does the Colorado pet deposit cap apply to service animals?
No. The caps apply to ordinary pets. A service animal or ESA may not be charged any pet deposit or rent at all, because it is not a pet under the Fair Housing Act.
What documentation can a Colorado landlord request for an ESA?
When the need is not obvious, reliable documentation that the tenant has a disability and that the animal provides support connected to it, from a licensed professional. Registration or certification may not be demanded.
Can a Colorado landlord apply a no-pet policy to a service animal?
No. A service animal is not a pet, so the landlord must make a reasonable accommodation to a no-pet policy and may not charge a fee or apply a breed or weight limit.
Can a Colorado landlord deny an assistance animal?
Only on an individualized basis – if the specific animal poses a direct threat or would cause substantial damage that cannot be reduced – not because of its breed or general doubts about the need.
Can a Colorado landlord charge for damage caused by an assistance animal?
Yes. No advance pet deposit or fee may be charged, but the tenant remains liable for actual damage the animal causes beyond ordinary wear.
Can a Colorado landlord charge a pet deposit for an emotional support animal?
No. An emotional support animal is an assistance animal, not a pet, under the Fair Housing Act, so a Colorado landlord may not charge a pet deposit, pet fee, or pet rent for it. The tenant still remains liable for any actual damage the animal causes.
Can a Colorado landlord apply a no-pet policy to a service animal?
No. A service animal is not a pet, so a Colorado landlord must make a reasonable accommodation to a no-pet policy to allow it, without a pet fee or a breed or weight restriction.
Related Colorado Pet and ESA Guides
- Pet and ESA laws by state – compare Colorado to the rest of the country.
- Colorado security deposit laws – limits, deductions, and the return deadline.
- Colorado habitability laws – the repairs a landlord must make.
- Colorado rent increase laws – notice periods and the limits on raising rent.
- Colorado eviction notice laws – notice periods and the eviction timeline.
- Tenant screening laws by state – screen the tenant before they move in.
- Colorado tenant screening laws – what you can check before renting.
Screen Colorado Tenants Before They Move In
Pets or not, the right tenant matters most. Order FCRA-ready credit, criminal, and eviction reports and rent with confidence in Colorado.
Published by Tenant Screening Background Check · Editorial Team
Established 2004. Our editorial team has spent two decades helping landlords and property managers run lawful, FCRA-compliant tenant screening across all 50 states. We translate state landlord-tenant codes and federal screening rules into processes you can actually follow.
Legal Disclaimer
This article is for general informational purposes only and is not legal advice. Colorado and federal laws change, and how they apply depends on your specific facts. Before acting on any screening, fee, deposit, or fair housing question, consult a licensed attorney in Colorado. Reading this page does not create an attorney-client relationship.
