What Is the Difference Between a Buy Rate and a Sell Rate on a Car Loan?
Car loan pricing works in two layers that most buyers never see separated. There’s the rate a lender is willing to accept, and there’s the rate that ends up on the contract, and the gap between them is where a meaningful part of dealer financing compensation lives.
The short answer
The buy rate is the interest rate a lender tells a dealership it will accept for financing a particular buyer’s loan. The sell rate is the rate the dealership actually offers that buyer, which can be marked up above the buy rate as compensation for arranging the deal. The difference between the two is often called dealer reserve, and it’s folded into the APR on the final paperwork rather than shown as a separate charge.
Why two rates exist
Lenders rely on dealerships to originate a large share of auto loans, so they offer a wholesale rate, the buy rate, in exchange for that volume of business. The dealership isn’t obligated to pass that rate straight through to the buyer. Instead, it generally has some room to add a markup before presenting the sell rate, similar to how a retailer might mark up a wholesale product price before selling it to a customer.
How the markup gets decided
The amount of markup isn’t fixed. It can depend on the lender’s own policies about how much reserve a dealership is allowed to add, how the finance and insurance office structures the deal, and how much negotiating happens before signing. That’s part of why two buyers with comparable credit scores can walk away with different final rates on similar vehicles.
Why the buy rate is hard to see
Dealerships generally aren’t required to disclose the buy rate itself, only the final APR in the contract. That makes it difficult to know exactly how much markup is included in any given offer. The most reliable way to get a sense of it is by comparing the dealer’s sell rate against an outside offer, such as a rate from getting preapproved before visiting the dealership, which reflects what a lender would accept without a dealer markup layered on top.
What to weigh before signing
- Ask the question anyway. Some buyers do successfully ask whether the quoted rate includes a markup, and dealerships aren’t prohibited from answering.
- Use an outside quote as leverage. A preapproved rate gives a concrete number to compare against, even if you ultimately finance through the dealership.
- Don’t assume credit score alone explains the rate. Two similar credit profiles can see different sell rates depending on how the deal was structured.
- Look at total loan cost. Comparing the full cost over the loan term, not just the monthly payment, shows the real effect of even a small markup.
The takeaway
The buy rate and sell rate exist because dealerships are compensated for arranging financing, which is a normal part of how that channel works. Knowing the two rates aren’t the same is what allows a buyer to ask sharper questions and use outside offers as a genuine point of comparison rather than accepting the first number on the table.