Illinois Vehicle Sales Tax Calculator
Illinois charges 6.25%–11.5% in vehicle sales tax depending on your county. Use this guide to calculate your exact tax bill before you buy.
Illinois charges 6.25% state tax plus local taxes. Chicago reaches 11.5% combined (one of the highest in the country). Suburban Cook County is typically 9%–10.25%. Downstate areas are generally 6.25%–8.25%. Rate is based on where the vehicle is registered.
Estimate Your Tax Bill
Use this formula to estimate your tax. Actual amount determined at registration.
Trade-In Tax Credit
Illinois allows a trade-in credit effective January 2020. Tax is calculated on the net price after deducting the trade-in allowance (capped at $10,000 credit per trade-in as of 2023 law — verify current cap year of purchase). This was a major reform from prior law that taxed the full price.
Maximum Tax Cap
Illinois caps the trade-in credit at $10,000 per vehicle (as of current law). On a $15,000 trade-in, you can only deduct $10,000 from the taxable price. Verify the current cap with IDOR as legislation may have updated it.
Out-of-State Purchases & Use Tax
Illinois applies use tax on vehicles purchased out-of-state. Credit is given for taxes paid to other states. Chicago's high combined rate frequently makes out-of-state purchases look attractive, but use tax applies when you register in Illinois.
Private Party Sale Tax Rules
Illinois private party sales are subject to the Private Party Vehicle Use Tax — a flat fee structure rather than a percentage. Fees range from $25 for vehicles under $15,000 to $1,500 for vehicles $200,000+. This flat-fee approach is unusual and can be more or less expensive than a percentage depending on vehicle value.
Common Tax Exemptions in Illinois
- ✓Family transfers qualifying under 35 ILCS 105/7
- ✓Inheritance
- ✓Transfers between spouses
- ✓Non-profit organizations
Illinois private party sales use a FLAT FEE structure, not a percentage. A $25,000 private sale pays a flat $390 fee (not 6.25% = $1,562). For higher-value vehicles, the flat fee is dramatically cheaper than a percentage. Always use the flat fee table for private party calculations.
Illinois Vehicle Tax FAQ
What is the vehicle sales tax rate in Illinois?
Illinois vehicle sales tax is 6.25%–11.5%. Illinois charges 6.25% state tax plus local taxes. Chicago reaches 11.5% combined (one of the highest in the country). Suburban Cook County is typically 9%–10.25%. Downstate areas are generally 6.25%–8.25%. Rate is based on where the vehicle is registered.
Does Illinois give a trade-in credit on vehicle taxes?
Yes. Illinois allows a trade-in credit effective January 2020. Tax is calculated on the net price after deducting the trade-in allowance (capped at $10,000 credit per trade-in as of 2023 law — verify current cap year of purchase). This was a major reform from prior law that taxed the full price.
How is vehicle tax calculated on a private party sale in Illinois?
Illinois private party sales are subject to the Private Party Vehicle Use Tax — a flat fee structure rather than a percentage. Fees range from $25 for vehicles under $15,000 to $1,500 for vehicles $200,000+. This flat-fee approach is unusual and can be more or less expensive than a percentage depending on vehicle value.
What vehicles are exempt from sales tax in Illinois?
Common exemptions include: Family transfers qualifying under 35 ILCS 105/7, Inheritance, Transfers between spouses, Non-profit organizations. Verify current exemptions with Illinois Secretary of State.
Does Illinois charge use tax on out-of-state vehicle purchases?
Yes. Illinois applies use tax on vehicles purchased out-of-state. Credit is given for taxes paid to other states. Chicago's high combined rate frequently makes out-of-state purchases look attractive, but use tax applies when you register in Illinois.
Is there a maximum vehicle tax cap in Illinois?
Yes — $10,000 trade-in cap. Illinois caps the trade-in credit at $10,000 per vehicle (as of current law). On a $15,000 trade-in, you can only deduct $10,000 from the taxable price. Verify the current cap with IDOR as legislation may have updated it.