Car Buying Costs in Illinois
Illinois charges a 6.25% sales tax on vehicle purchases. Illinois's state vehicle sales tax is 6.25%, but home-rule county/city taxes (e.g., Chicago and Cook County) push dealer purchases well above that; private-party buyers instead pay a flat Private Party Vehicle Use Tax (Form RUT-50) based on vehicle age/price, not a straight percentage. Registration typically costs $151, the title fee is $150, and dealer doc fees are capped at $377.63.
State Sales Tax
6.25%
Doc Fee Limit
$377.63
Registration
$151
Title Fee
$150
Illinois Cost Calculator
Estimate your total out-the-door cost
Illinois credits your trade-in against the taxable amount
Look up your county + city rate on the state tax authority site; many areas add tax on top of the 6.25% state rate.
Cost Breakdown
Estimates are based on typical Illinois fees. Excludes any local property/ad valorem taxes, EV surcharges, and manufacturer or dealer add-ons, so this is not a complete out-the-door price. Actual costs vary by county, city, and dealer — always ask for a complete itemized out-the-door quote before purchasing.
Illinois Car Purchase Fee Details
| Fee | Amount |
|---|---|
| State Sales Tax | 6.25% |
| Doc Fee | Up to $377.63 |
| Registration | $151 |
| Title Fee | $150 |
| Vehicle Inspection | Not Required |
| Emissions Test | Required |
Illinois Negotiation Tips
- 1.Illinois caps doc fees at $377.63 for 2026 - don't pay more
- 2.Watch for add-on fees that circumvent the doc fee cap
About This Data
Last reviewed: . Tax rates and fees change — always confirm with the Illinois Department of Revenue or DMV and your dealer's itemized quote before purchase.
Frequently Asked Questions About Buying a Car in Illinois
What is the car sales tax rate in Illinois?▼
Vehicle purchases in Illinois are subject to a 6.25% sales tax. Illinois's state vehicle sales tax is 6.25%, but home-rule county/city taxes (e.g., Chicago and Cook County) push dealer purchases well above that; private-party buyers instead pay a flat Private Party Vehicle Use Tax (Form RUT-50) based on vehicle age/price, not a straight percentage. Use our calculator above to estimate your total.
How much does it cost to register a car in Illinois?▼
Vehicle registration in Illinois typically costs $151. The title fee is $150. No vehicle inspection is required. An emissions test is required in certain areas.
Are dealer doc fees capped in Illinois?▼
Yes, Illinois caps dealer documentation fees at $377.63. Capped at $377.63 for 2026 (adjusted annually for inflation)
When is the best time to buy a car in Illinois?▼
There's no single best month — discounts depend on the dealer, the model, and current inventory. Shopping at the end of the month or quarter can help, as dealers work to meet sales targets, and outgoing model years are often discounted when the new year arrives. The most reliable approach is comparing itemized out-the-door quotes from multiple Illinois dealers.
Know the fees — now find the right price
Search live Illinois inventory, see what buyers actually paid, or have a dealer quote checked line by line.