Illinois · IL
Buying a Used Car in Illinois
Title transfer, sales tax, inspection rules, and the state-specific risks you need to watch for before signing anything.
Illinois has emissions testing in the Chicago metro and East St. Louis areas, no statewide safety inspection, and a 6.25% state sales tax with significant local additions (Chicago combined rates can exceed 10%). The state's used-car market is dominated by Chicago-area private and dealer transactions, which makes title fraud and curbstoning meaningful concerns in dense neighborhoods. Illinois is squarely in the salt belt: heavy winter road salt, brine, and chemical de-icers cause aggressive undercarriage and frame corrosion. Vehicles 8+ years old often have rust issues that materially affect safety and resale. The state also sees plow-truck wear on commercial vehicles and a steady inflow of fleet vehicles ending up in private ownership.
Illinois at a Glance
Illinois used car buying: quick facts
Sales Tax
6.25% state + 0.25-4.5% local. Chicago combined rate is around 10.25%.
Lemon Law (Used)
New cars only
Inspection
Emissions only (Chicago metro and East St. Louis)
Title Transfer
Illinois title transfer process and fees
Illinois title transfer is handled by the Illinois Secretary of State (which administers DMV functions). The seller signs the title to the buyer with odometer disclosure, and the buyer submits the title with an Application for Vehicle Transaction(s) (Form VSD 190), proof of insurance, and ID. There's no inspection step, but emissions compliance is required for Chicago-area registrations.
Documents you'll need
- Original title signed by seller, with odometer disclosure
- Application for Vehicle Transaction(s) (Form VSD 190)
- Bill of sale
- Buyer's Illinois driver's license
- Proof of Illinois liability insurance
- Emissions certificate (Chicago metro and East St. Louis areas)
- Tax form RUT-50 (private-party purchases)
Time Window
20 days from purchase to title and register
Fees
Title fee: $165. Sales tax: 6.25% state + 0.25-4.5% local (Chicago combined ~10.25%). RUT-50 private-party use tax (Illinois DOR, tax.illinois.gov): vehicles under $15,000 taxed by age ($100–$465); $15,000+ taxed by price ($850–$10,100). Registration: $151/year for passenger vehicles.
Inspection Requirements
Illinois vehicle inspection and emissions requirements
Vehicles 4+ model years old in 11 counties around Chicago and East St. Louis must pass biennial emissions testing. Counties include Cook, DuPage, Kane, Lake, McHenry, Will, Madison, Monroe, St. Clair, and parts of others. There's no statewide safety inspection. Outside test areas, no inspection required.
What to Watch For
Illinois-specific risks
Buying patterns, geography, and weather create risks that are unique to Illinois. Here's what to scrutinize.
Severe salt-belt undercarriage rust: Illinois uses heavy road salt and brine. Frame, brake-line, fuel-line, and rocker corrosion is common on vehicles 8+ years old.
Curbstoning is reported in the Chicago area: unlicensed dealers posing as private sellers to skirt FTC dealer rules. Verify title is in seller's name.
Plow-truck and commercial fleet history: many Chicago-area trucks served as plow vehicles or commercial fleet; verify use history.
Emissions failure can be expensive in test counties; verify a current passing certificate before paying.
High RUT-50 use tax on private-party sales of newer vehicles can add $1,000+ to your cost.
Title-washed vehicles from southern flood states sometimes appear in Illinois; check NMVTIS for original brand.
Buying Tips
Illinois used car buying tips
Get an underbody inspection on a lift for any Illinois vehicle 8+ years old, frame and brake-line rust is a major condition issue.
For Chicago-area private-party deals, verify the seller's name on the title matches their ID.
Calculate RUT-50 use tax in advance; it's tiered by vehicle age and can be a significant surprise.
Pull NMVTIS. Illinois's import flow makes flood/salvage history checks recommended.
For Chicago metro registration, verify the emissions certificate is current.
Pre-purchase mechanic inspection is recommended; Illinois has no safety inspection.
For commercial-titled trucks, expect heavier real wear than the odometer suggests.
Legal & Regulatory
Illinois lemon law, insurance minimums, and registration fees
Lemon Law
New vehicles only
Illinois's New Vehicle Buyer Protection Act (815 ILCS 380) covers new vehicles only, within 12 months or 12,000 miles. Used vehicles are not covered. Used-vehicle dealer sales are subject to the FTC Used Car Rule and Illinois consumer protection laws. Private-party sales are as-is.
StatuteInsurance Minimums
Required liability
25/50/20, $25,000 bodily injury per person / $50,000 per accident / $20,000 property damage
- UM/UIM required at 25/50
Registration
Annual fees
$151 standard passenger vehicle registration; specialty plates and EVs add fees ($100 EV surcharge)
- Valid Illinois liability insurance
- Emissions compliance (test areas)
- Title in registrant's name
- Payment of registration fees
Always verify with the Illinois DMV before you buy
State laws, fees, tax rates, and inspection rules change frequently. The information on this page is provided as a general guide only and may not reflect the most recent changes. For decisions involving money, signatures, or deadlines, confirm directly with the Illinois DMV.
Visit Illinois Secretary of State (Vehicle Services)FAQ
Illinois used car buying FAQ
Do I need an emissions test to register a used car in Illinois?▾
Only if you register in 11 specific counties around Chicago or East St. Louis, and only for vehicles 4+ model years old. Outside those counties, no inspection is required. Tests are free at state stations.
What is RUT-50 and how does it work?▾
RUT-50 is the use tax on private-party vehicle purchases in Illinois. Vehicles under $15,000 are taxed by age ($100–$465); vehicles $15,000+ are taxed by price ($850–$10,100). The $25 flat rate applies only to motorcycles/ATVs, not cars. RUT-50 is paid at title transfer in addition to title and registration fees.
Does Illinois have a used-car lemon law?▾
No. Illinois's lemon law covers new vehicles only. Used-vehicle dealer sales fall under the FTC Used Car Rule and Illinois consumer protection law. Private-party sales are as-is.
What's the biggest used-car risk in Illinois?▾
Salt-belt undercarriage and frame rust on older vehicles. Chicago-area road treatment is aggressive, and rust can render vehicles unsafe and uneconomical to repair. Get a pre-purchase inspection on a lift.
How long do I have to title a vehicle in Illinois?▾
20 days from the purchase date. Beyond that, late penalties accrue.
TitlePull reports are for personal, non-commercial use only. They may not be used for credit, insurance, employment, or tenant screening decisions under the FCRA. Title and brand data is sourced from NMVTIS via VinData (VDP LLC), an Approved NMVTIS Data Provider.
Run a vehicle history report before signing anything
Title brands across all 50 states, odometer history, salvage and theft records, and active recalls, for any used car in Illinois. $9.99 flat. No subscription.
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Last updated July 26, 2026
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Regulatory information current as of June 2026. State requirements including tax rates, lemon law thresholds, insurance minimums, inspection programs, and DMV processes change. Verify current rules with the Illinois Secretary of State (Vehicle Services) (www.ilsos.gov/departments/vehicles/) and your insurance provider before relying on this information for a transaction. This page is informational and does not constitute legal, financial, or tax advice.