Illinois Dealer Fee Checker
Use this Illinois dealer fee checker to organize a vehicle quote into government charges, dealer-controlled charges, optional products, and items needing review.
Last verified: October 2026
Direct answer
What the Illinois Dealer Fee Checker Does
The Illinois dealer fee checker separates entered quote items into government charges, dealer-controlled charges, optional products, and charges needing review. It also records whether each amount is already included in the advertised price so the same charge is not added twice.
The checker gives neutral review prompts. It does not decide whether every label is accurate or whether a charge is appropriate for a particular transaction.
2026 documentary figure
Illinois Documentary Service Fee: $377.63 Used by This Project
Illinois statute sets a $300 documentary-fee base beginning January 1, 2020 and requires an annual Consumer Price Index adjustment. The exact 2026 figure used by this project is $377.63.
The $377.63 figure is published by the Illinois Automobile Dealers Association from that CPI formula. The statute provides the official base and adjustment method; the project did not locate an Illinois state page publishing the exact 2026 number. The tool identifies this source distinction instead of presenting the industry calculation as a state-issued figure.
When an entered documentary fee exceeds the comparison figure, use the neutral description: Above the current documented maximum used by this tool.
Tax and fee type
The Documentary Fee Is Taxable and Is Not a Government Charge
Illinois ST-556 instructions include documentary fees in the taxable vehicle selling price. The fee is dealer-controlled, is not an official government charge, and is not required by Illinois law.
For a complete purchase estimate after reviewing the quote, enter the supported amounts in the Illinois Out-the-Door Price Calculator.
Electronic processing
The Optional ERT Fee Is Capped at $35
Illinois administrative rules allow a customer fee of up to $35 for the optional electronic registration and titling service. It must remain separate from the actual government title and registration charges.
The checker never inserts this fee automatically. Add an Optional ERT Fee row only when it appears on the quote. An amount above $35 or a quote describing the service as required is placed in the needs-review group.
Quote groups
Government Charges, Dealer-Controlled Charges, and Optional Products
Government charges
Vehicle tax and properly identified Illinois title or registration amounts belong in the government group. Estimate those independently with the Illinois Tax, Title & License Calculator.
Dealer-controlled charges
Documentary service, dealer preparation, destination or freight, advertising, accessories, and the optional ERT service are not reclassified as government charges merely because they appear near tax and title on a quote.
Optional products
Service contracts and GAP products are grouped separately so buyers can see which entered amounts are optional additions rather than state charges.
Advertised-price review
Required Charges Outside the Advertised Price Need a Clear Explanation
The Illinois advertised-price rule permits clearly disclosed taxes, title and license fees, and a documentary service fee to be excluded from the advertised price. Other costs that are necessary or usual before delivery generally belong in the advertised total.
If a quote marks another dealer charge as required but shows it outside the advertised price, the checker asks for a written breakdown. It uses neutral wording and does not make a legal conclusion.
Unclear quote items
Unknown Charges Go to Needs Review
An unfamiliar protection, compliance, inspection, filing, or service label does not reveal who receives the money, whether the item is optional, or whether it is already included elsewhere. Unknown rows therefore remain in Needs Review.
Ask the seller for the charge's written description, recipient, tax treatment, whether it is required by the dealer, and whether it is included in the advertised vehicle price.
Engine-backed quote
Example Illinois Dealer Quote Review
This example starts with a $30,000 advertised price and enters a $377.63 documentary fee, $35 Optional ERT Fee, $1,500 service contract, $2,000 vehicle-tax amount, and $199 unexplained protection charge.
- Advertised vehicle price
- $30,000.00
- Dealer-controlled charges
- $412.63
- Optional products
- $1,500.00
- Government charges
- $2,000.00
- Needs review
- $199.00
- Pre-government subtotal
- $32,111.63
The documentary fee matches the industry-published figure used by the tool. The Optional ERT Fee is at its $35 maximum, while the unexplained $199 item remains in Needs Review.
Illinois dealer-fee questions
Frequently asked questions
What documentary service fee figure does this tool use for Illinois in 2026?
The tool uses $377.63. That exact amount is industry-published from the statutory CPI formula; Illinois statute supplies the official $300 base and annual adjustment method.
Is the Illinois documentary service fee taxable?
Yes. Illinois ST-556 instructions include documentary fees in the taxable vehicle selling price.
Is the documentary fee an Illinois government charge?
No. It is a dealer-controlled charge, not an official government fee, and Illinois law does not require a seller to charge it.
What is the Illinois Optional ERT Fee maximum?
The current rule permits up to $35 for the optional electronic registration and titling service. It is separate from government title and registration fees.
Which charges may be excluded from an Illinois advertised vehicle price?
The state advertised-price rule permits clearly disclosed taxes, license and title fees, and a documentary service fee to be excluded. Other required dealer charges outside the price need a clear written explanation.
How should I handle an unknown dealer charge?
Ask for a written description, who receives the money, whether it is optional, its tax treatment, and whether it is already included in the advertised price. The checker keeps unclear items in Needs Review.