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IL tax and fee guide

Illinois Used Car Sales Tax And Fees Guide

Use this Illinois used-car tax and fee checklist to separate official title, registration, tax, plate, inspection, and dealer charges before buying.

Last reviewed: June 3, 2026

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Verify With Official Sources

Verify current tax, title, registration, inspection, plate, document, and deadline requirements with the linked official state sources before buying.

Tax And Fee Items To Verify

  • Private-party purchases may require Form RUT-50 and tax due with title paperwork.
  • Dealer and private-party transactions can use different tax processes.
  • Registration, plate, title, and local charges should be confirmed with official Secretary of State and Revenue guidance.

Dealer Quote Review

  • Ask for an itemized buyer's order before discussing monthly payment.
  • Separate government tax, title, registration, plate, and inspection charges from dealer documentation fees and optional add-ons.
  • Compare the dealer's state paperwork explanation with official Illinois sources when anything is unclear.
  • Recalculate the out-the-door price whenever the quote changes.

Common Fee Mistakes

  • Assuming the advertised price includes tax, title, registration, inspection, plate, dealer, or add-on charges.
  • Paying before the VIN, seller name, title assignment, odometer disclosure, and lien story line up.
  • Waiting until after payment to check the official Illinois title, registration, tax, or inspection process.

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