Reviewing dealer add-ons before you sign your car loan

Check every optional product's price, terms, and effect on your total cost—not just the payment.

You’ve negotiated the vehicle price and the dealer hands you the financing paperwork. Scrolling through the pages, you notice line items for GAP coverage, an extended service contract, and window etching—products you don’t remember discussing in detail.

Each one adds to the amount you’ll borrow, and you’re not sure whether you need them or how much interest you’ll pay on them over the loan term.

Dealer add ons car loan packages are optional products or services offered when you finance a vehicle. They can include GAP coverage, service contracts, theft-deterrent systems, and surface-protection products.

When you agree to finance an add-on, the dealer adds its price to the amount you borrow, increasing the total you will repay. Depending on your loan terms, the interest rate, how long you keep the loan, and whether you cancel the product or pay off the balance early, you may pay more than the add-on’s upfront price.

Before you sign, review each add-on’s written terms, standalone price, and impact on your total repayment. This article walks through what to check, which questions to ask, and how to confirm that only the products you agreed to appear in your contract.

Add-ons are optional, and financing them increases what you pay.

Under FTC rules, dealers must disclose optional add-ons, provide clear pricing, and obtain your express, informed consent before charging you. If you choose to include one in your loan, you borrow more and the total repayment may increase depending on the loan terms.

What dealer add-ons are and why they appear in your loan

Dealer add-ons are products or services that a dealer may offer for purchase alongside the vehicle. Common examples include GAP coverage, extended warranties or service contracts, window etching, alarms, tire-and-wheel protection, credit insurance, rustproofing, fabric protection, and paint sealants.

When you agree to purchase an add-on and finance it, the dealer adds its price to the amount you borrow. That increase in principal means you may pay interest on the add-on over the entire loan term.

The total you repay can be higher than the product’s upfront price because interest accrues on the financed amount.

For example, if you finance a service contract and pay interest on it for five years, the total cost of that contract will exceed its initial price. Understanding this effect helps you decide whether to finance an add-on, pay for it separately, or decline it altogether.

Why the monthly payment number is not the full picture

A dealer may present a monthly payment that fits your budget. In some cases, that lower payment results from extending the loan term rather than reducing the total cost.

A longer term spreads payments over more months but increases the total interest you pay.

Before you agree, review your financing documents to check the vehicle’s cash price, the price of each add-on, the amount financed, the annual percentage rate, the loan term, the finance charge, and the total of payments. The monthly payment is only one piece of the picture.

Comparing these numbers helps you see how much the vehicle and each add-on will cost you over time. If an add-on’s financed cost is significantly higher than its upfront price, you can decide whether the product is worth that difference.

Watch out: A monthly payment that looks affordable may hide a longer term and a higher total cost. Always review the full repayment schedule before you sign.

Questions to ask before you agree to any add-on

Before you accept a dealer add-on, ask for the written terms and review them carefully. Key questions include:

  • What exactly does this product cover, and what is excluded?
  • How long does the coverage last?
  • Is there a deductible or waiting period?
  • Can I cancel the product, and how is any refund calculated?
  • What is the standalone price of this product, and how much interest will I pay if I finance it?

If the dealer cannot provide clear answers or written documentation, you can ask for time to review the terms before signing. You are not required to make a decision on the spot.

Some add-ons may duplicate coverage you already have. For example, if your auto insurance policy includes rental reimbursement, an additional rental-car product may be unnecessary.

Reviewing your existing coverage before you visit the dealer can help you identify overlaps.

What to check Why it matters
Coverage details and exclusions Helps you understand what the product actually protects and what it does not.
Cancellation and refund terms Tells you whether you can cancel later and how any refund is calculated.
Standalone price vs. financed cost Shows the total you will pay if you include the add-on in your loan.
Overlap with existing coverage Prevents you from paying twice for the same protection.

How to spot and stop unauthorized charges

Under the FTC’s prohibition of deceptive and unfair practices in motor vehicle sales, dealers must clearly and conspicuously disclose each optional add-on, its price, and the fact that it is optional. They must also obtain your express, informed consent before charging you for any add-on.

If you see a product or fee in the paperwork that you did not agree to, stop the signing process and request a corrected contract.

Read every page of the contract before you sign. Verify that the vehicle price, the price of each add-on, the amount financed, the annual percentage rate, the term, the finance charge, and the total of payments match what you agreed to.

If any number or product does not match, ask for an explanation and a corrected document.

Do not sign documents you have not read or do not understand. Do not assume an error can be corrected after signing.

Taking the time to review everything before you sign can help you identify or challenge unwanted charges before they become part of your loan.

Keep in mind: The signed documents typically govern the transaction. If you spot an error or unauthorized charge, address it before you sign rather than assuming you can fix it later.

How outside financing helps you compare

Getting financing options from a bank, credit union, or other lender before you visit the dealer may provide a comparison point. Preapproval terms can vary and may be subject to conditions, but having an offer in hand can help you evaluate the dealer’s financing proposal.

Ask the dealer for the full price breakdown—including the vehicle cost and any optional products—in writing before you finalize financing. This approach can help you identify which charges are for the vehicle and which are for optional add-ons.

Comparing the dealer’s offer to your preapproved rate, term, and total cost can reveal whether the dealer’s financing is competitive. If the dealer’s offer includes add-ons you do not want, you can ask for a revised proposal that excludes them.

State rules and where to verify your rights

Disclosure and cancellation requirements for dealer add-ons differ by state and product. Some states require dealers to provide specific disclosures about optional products, while others set cancellation deadlines or refund formulas.

To verify the rules that apply where you live, consult your state’s consumer protection office or attorney general. These agencies can provide information about state-specific requirements and help you understand your rights if a dealer includes an unauthorized charge in your contract.

Federal consumer guidance is available from the FTC’s Automobile Industry Pricing Transparency FAQs and the CFPB’s consumer guidance on auto loan payments and buying a car. These resources explain federal protections and industry obligations.

Confirming the rules in your state before you sign can help you know what to expect.

  • Have you reviewed the written terms of every add-on before you agreed to finance it?
  • Do you know the standalone price of each product and the total you will pay if you finance it?
  • Have you compared the dealer’s financing offer to preapproved options from other lenders?
  • Have you verified that no unauthorized products or fees appear in your contract?

Dealer add ons car loan packages can increase the amount you borrow and the total you repay. Before you sign, review each product’s price, terms, and effect on your loan balance.

Ask for written documentation, compare financing offers, and verify that only the products you agreed to appear in your contract.

If you have questions about a specific add-on or financing term, ask the dealer to explain it in writing. If the explanation is not clear or does not match the contract, consider getting more information before you move forward.

Taking these steps can help you make an informed decision and avoid paying for products you do not need or did not authorize.

* Dealer practices, product terms, and state requirements can change. For current federal consumer guidance, visit the FTC’s automobile pricing guidance, the CFPB’s auto loan resources, and the FTC’s consumer guidance on buying a car.