Is Rental Arbitrage Legal in Illinois?
In Illinois, short-term rental rules are set locally by cities and counties. The state imposes a Hotel Operators' Occupation Tax (6%, effective 5.64% before local taxes) on all STR operators and hosting platforms. Cities vary widely: Chicago requires registration and allows up to 6 units per building; Naperville prohibits them entirely; Rockford requires permits and registries; Aurora allows them with a 3% local tax. Each city has distinct zoning, registration, occupancy and tax rules.
Requirements
- State-level: Illinois Department of Revenue Hotel Operators' Occupation Tax registration and monthly Form RHM-1 filing (effective 5.64% before local taxes; platforms as re-renters subject as of July 1, 2025)
- Local registration, permit or licensing, depending on city (check your city's rules)
- Chicago: Shared Housing Registration (before listing), Vacation Rental License (Municipal Code 4-6-300), registration number in ads and bookings
- Rockford: STR Permit (annual renewal, owner-only), guest registry, 24/7 local contact (within 50 miles, 60-minute response), neighbor notification before first rental each year, posted ordinance requirements in unit
Restrictions
- Local control; rules vary significantly by city
- Chicago: Combined shared housing and vacation rentals limited to no more than 6 units or 25% of dwelling units per building, whichever is less
- Naperville: Short-term rentals prohibited entirely; $1,000 per day and $2,500 per day for subsequent violation within 12 months
- Rockford: Owner-only; no signage advertising; cannot advertise hourly rates or under 24 hours; prohibited for weddings, conferences, parties, events; max 10 occupants; minimum 24-hour gap between rentals; parking limited to 4 vehicles; fines $50–$750 per violation
- Aurora: Residential registration through Non-Owner-Occupied Rental Licensing Program
Taxes and Fees
- Illinois Hotel Operators' Occupation Tax: 6% of gross receipts (effective 5.64% before local taxes); registered with Illinois Department of Revenue, Form RHM-1 monthly
- Chicago: 10.5% total (4.5% Hotel Accommodations Tax + 4% surcharge + 2% additional surcharge)
- Rockford: 6% total (1% Redevelopment Fund Tax + 5% Tourism/Hotel-Motel Tax)
- Aurora: 3% city hotel occupancy tax
- Hosting platforms classified as re-renters subject to tax as of July 1, 2025
Cities in Illinois
Next Step
Legal is one half of the decision. The other half is whether the deal earns enough to be worth the risk.
Sources
Frequently Asked Questions
- Who Sets Short-Term Rental Rules in Illinois?
- Cities. Chicago has its own registration system and building-level limits.
- Is Rental Arbitrage Legal in Chicago?
- Registration is required, and in buildings of 1 to 4 units a non-primary-residence unit needs a waiver. See the Chicago page.