Does a Dealer Have to Disclose an Interest Rate Markup?

Updated July 9, 2026 5 min read

When a dealership arranges financing on a buyer’s behalf, the interest rate that ends up on the contract isn’t necessarily the same rate the lender originally offered.

The short answer

Dealers can add a markup to the wholesale interest rate a lender offers them, and general disclosure practice requires the final annual percentage rate to appear clearly on the loan contract, but dealers are generally not required to separately disclose the wholesale rate or the size of any markup itself. In practice, that means the rate a buyer signs for reflects both the lender’s underlying pricing and the dealer’s added margin, without a breakdown of the two.

Why this markup exists

When a dealership arranges financing through an outside lender rather than the buyer arranging it directly, the lender typically offers the dealer a wholesale, or “buy,” rate based on the buyer’s credit profile and loan term. The dealer is often permitted to mark that rate up before presenting it to the buyer as the final rate, and the difference functions as compensation to the dealer for arranging the loan, similar to a commission.

What’s typically disclosed and what isn’t

Why regulators haven’t required a full breakdown

Rules around dealer rate markups have been debated for years, with some proposals aimed at requiring a clearer split between the wholesale rate and the dealer’s markup. So far, general practice has settled on disclosing the final rate rather than its individual components, on the reasoning that the final APR is the number that determines what a borrower actually pays. Whether that’s the most useful way to disclose financing terms is a matter of ongoing discussion, but it reflects the current baseline a buyer is likely to encounter.

How to check for a markup in practice

Since the markup itself usually isn’t itemized, the practical way to gauge whether a quoted rate includes one is to compare it against offers from other sources. Getting a pre-approved rate from a bank, credit union, or online lender before visiting a dealership provides a benchmark; if the dealer’s financing offer comes in noticeably higher for a similar credit profile and loan term, that gap may reflect a markup, though it could also reflect differences in each lender’s own pricing.

A last word

Because markup practices and disclosure requirements can vary by lender, by state, and by the specific financing arrangement, the details of what a dealer must reveal aren’t the same in every situation. Shopping the rate independently before financing through a dealer remains the most reliable way to know whether the offered rate is competitive, regardless of what is or isn’t disclosed on the paperwork itself.