Illinois Tenants’ Right to Repair Act: Notice, Cap, and Deduction

Illinois repair and deduct is a remedy under the Residential Tenants’ Right to Repair Act (765 ILCS 742) that lets you pay for a repair your landlord refuses to make and subtract the cost from your rent, up to $500 or half of one month’s rent, whichever is less. You have to give written notice first, wait 14 days, and hire a licensed, insured tradesperson who isn’t related to you. Skip any of those steps and a court can treat the money you held back as unpaid rent.¹

Whether Your Rental Qualifies

The Act covers most private residential rentals in Illinois, but a handful of housing types are carved out entirely: public housing funded under the United States Housing Act of 1937, condominiums, nonprofit residential cooperatives, commercial and industrial tenancies, owner-occupied buildings with six or fewer units, and mobile homes (which have their own statute at 765 ILCS 745). If your unit falls into any of those categories, the process below does not apply to you, though a local ordinance in your city may offer a separate repair remedy.¹

Repairs That Qualify and the Dollar Cap

Two things have to be true before you can use the remedy. The repair must be one the landlord is already legally required to make, either under the lease itself or under a statute, regulation, or local building code. And the reasonable cost must not exceed the lesser of $500 or half your monthly rent.¹

A broken furnace in winter typically qualifies because heat is required by municipal housing codes. A plumbing leak that violates code qualifies. Cosmetic complaints — outdated carpet, a countertop you dislike — do not, unless the lease specifically obligated the landlord to maintain or replace those items.

Work the cap against your own rent. At $900 rent, your maximum deduction is $450, because half a month is less than $500. At $1,400 rent, the cap holds at $500. Bigger repairs still need to happen, but you’ll need a different tool: withholding rent through the courts, calling in your local building department, or suing for breach of the lease.

Sending Written Notice

Before you hire anyone, send your landlord a written notice describing the problem and stating that you intend to have it repaired at the landlord’s expense if they don’t act. The statute requires the notice to go by registered mail, certified mail, or another restricted delivery service. Address it to the landlord at the address in the lease, or the last known address if the lease doesn’t list one.¹

The landlord then has 14 days to begin the repair. If they start work in that window, the process ends. If 14 days go by with nothing, you can hire someone.

Keep every scrap of paper. The certified mail receipt proves the landlord got the notice. A dated copy of the letter proves what you asked for. If there’s a fight later, that file is your defense.

Emergencies

You don’t have to wait 14 days for an emergency. The statute defines an emergency as a condition that will cause irreparable harm to the unit or its fixtures if not fixed immediately, or one that poses an immediate threat to occupant health or safety. A burst pipe, a gas leak, or a broken exterior lock all fit.¹

The Act does not give an exact shortened deadline. It says the landlord must act “more promptly as conditions require.” Send written notice anyway, then hire a professional as soon as the situation demands. Photograph or video the condition before the repair so the landlord cannot later argue it wasn’t truly urgent.

Choosing a Contractor

The person you hire has to be an “appropriate tradesman or supplier unrelated to the tenant.” You cannot do the work yourself, and you cannot hire a family member or anyone else related to you. If you do, the whole deduction is invalid.¹

Section 15 puts three duties on you when picking a contractor. The work must be done properly and in compliance with applicable building codes. The contractor must hold whatever license or certificate state or local law requires for that trade. And the contractor must carry enough insurance to cover any bodily injury or property damage from negligent or substandard work.¹

You are personally on the hook for any damage the contractor causes to the property. If the job goes wrong, that liability falls on you, not the landlord. Missing any of these requirements also knocks you out of the Act’s protection.

Taking the Deduction

Once the work is done, submit the paid bill to your landlord. The bill has to come from the tradesperson or supplier, not from you. If it doesn’t already show the contractor’s name, address, and phone number, add that information in writing when you send it.¹

The amount you subtract is capped two ways. It cannot exceed the lesser of $500 or half your monthly rent, and it also cannot exceed the “reasonable price then customarily charged” for that kind of repair in your area. A contractor may charge you $500, but if similar work usually runs $300 locally, the landlord can challenge the difference. A second quote before you commit is worth the phone call.

When rent is due, pay the balance and include a copy of the paid bill. Rent of $1,000 minus a $350 repair bill means you pay $650, with documentation. Keep copies of everything. Most fights start here, with the landlord claiming you simply underpaid. Your certified mail receipt, notice letter, and contractor invoice are what turn an “unpaid rent” claim into a valid deduction.

When the Remedy Won’t Work

You cannot use repair and deduct when the problem was caused by you, someone in your family, or a guest you let onto the premises. Damage from a party, a child, or a visitor is your problem, not the landlord’s, and this process doesn’t apply.¹

Section 20 adds real weight to the procedural rules. In an eviction or unpaid-rent lawsuit, you cannot raise your deduction as a defense unless you followed every step the Act requires: written notice by certified or registered mail, the 14-day wait (or a genuine emergency), an unrelated licensed and insured contractor, and a paid bill delivered to the landlord with full contact information. Miss one step and a court can treat the money you held back as rent you owe.¹

Retaliation Protections

A landlord cannot legally punish you for using this remedy. The Retaliatory Eviction Act (765 ILCS 720) makes it against public policy to terminate or refuse to renew a lease because a tenant reported building code or health violations to a government authority, and any lease clause purporting to allow that kind of eviction is void.²

A broader Landlord Retaliation Act also protects tenants who request repairs, contact government agencies, join tenants’ organizations, or exercise other legal rights. If the landlord takes adverse action within a year of your protected activity, the burden shifts to them to show a legitimate, non-retaliatory reason. If they can’t, a court can let you stay, end the lease on your terms, award two months’ rent or double your actual damages, and order the landlord to pay your attorney’s fees.

1
Justia Law. Illinois Code 765 ILCS 742 – Residential Tenants Right to Repair Act
2
Justia Law. Illinois Code 765 ILCS 720 – Retaliatory Eviction Act