Key takeaways
- Dealers usually arrange loans through outside lenders and can add a markup to the lender's buy rate.
- A bank or credit union preapproval gives you a benchmark the dealer has to beat.
- Manufacturer 0% APR offers can be excellent, but often require giving up a cash rebate. Run the numbers both ways.
- Compare APR, term and total amount financed, not just the monthly payment.
In this guide
In the dealer financing vs. bank loan decision, the cheaper option is whichever gives you the lowest APR on the same amount and term with no added products. Dealers can offer manufacturer-subsidized rates banks can't, but can also mark up the lender's rate. A bank or credit union preapproval tells you which is which.
Both routes end in the same kind of loan. The difference is who you're dealing with and how the price of the loan is set.
How dealer financing actually works
Most dealers don't lend their own money. When you apply in the finance office, the dealer sends your application to several outside lenders, which may include banks, credit unions and the automaker's own finance company (often called a captive lender). Those lenders respond with approvals and a wholesale rate, commonly called the buy rate.
The dealer then presents you with a contract rate. That rate can be the buy rate itself, or it can be higher. The difference, often called the dealer reserve or dealer markup, is typically shared between the dealer and the lender as compensation for arranging the loan. Lenders commonly cap how much a dealer can add, often at a couple of percentage points, and caps vary by lender and loan.
This is legal and widespread, and it's disclosed in the sense that your contract shows the APR you agreed to. It isn't disclosed in the sense that you're rarely told what the buy rate was.
That small monthly difference is exactly why markups often go unnoticed.
How bank and credit union loans work
With direct lending, you apply to the bank, credit union or online lender yourself. There's no intermediary adding a margin, and you usually get the rate the lender's pricing model gives your credit profile. You can do this before you shop by getting preapproved for an auto loan, which gives you a specific APR and a maximum amount.
Direct lenders do have trade-offs. They may restrict the age or mileage of the car, require more documentation, or take longer to fund. Some won't finance private-party purchases. And they can't offer the manufacturer-subsidized promotions that dealers sometimes can.
Dealer financing vs. bank loan: side by side
| Factor | Dealer-arranged financing | Bank or credit union loan |
|---|---|---|
| Convenience | One-stop at the dealership | Separate application, usually before shopping |
| Rate markup | Possible above the lender's buy rate | Generally none |
| Promotional rates (0%, low APR) | Available on select new models | Not available |
| Negotiating leverage | Low without an outside offer | High; you shop like a cash buyer |
| Credit range served | Wide, including subprime lenders | Varies; credit unions can be flexible |
| Add-on pressure | Finance office often sells products | Less common |
| Vehicle restrictions | Few | May limit age, mileage or seller type |
0% APR financing vs. a cash rebate
Automakers sometimes offer a choice on new cars: take a promotional low or 0% APR, or take a cash rebate and arrange your own financing. You usually can't have both. Which is better depends on the size of the rebate and the rate you can get elsewhere.
A few things to keep in mind with promotional offers:
- They usually require top-tier credit. Advertised deals often apply only to buyers in the highest credit tiers; see how auto loan rates vary by credit score.
- Terms may be short. A 0% deal limited to 36 months means a much higher payment.
- The price is still negotiable. A promotional rate doesn't mean the sticker price is fixed.
- Watch for inflated add-ons. A great rate on a loan padded with extras isn't a great loan.
Add-ons in the finance office
Whichever loan you choose, the finance office will likely offer extended service contracts, tire and wheel protection, paint sealant and gap coverage. These are optional. Anything you add increases the amount financed and accrues interest for the whole term.
Gap coverage deserves a real look if you're putting little down or taking a long term, because you can owe more than the car is worth for years. But compare the dealer's price with gap insurance from your auto insurer, which is often cheaper.
How to decide
- Get one to three outside preapprovals within about two weeks.
- Negotiate the out-the-door price.
- Ask the dealer to beat your best preapproval on the same term.
- If a manufacturer promotion exists, compare it against taking the rebate plus your outside loan.
- Choose the offer with the lowest total cost, not the lowest payment.
If you take dealer financing and later find a better rate, you can often refinance the car loan with a bank or credit union, as long as your contract has no prepayment penalty. For a refresher on how rate and term affect the total, see how auto loans work.
The bottom line
Dealer financing can be the best deal available, particularly with manufacturer promotions, but the quoted rate may include a markup over what the lender approved. Getting a bank or credit union preapproval first turns the comparison into a simple test: whichever offer has the lower total cost on the same terms wins.
Frequently asked questions
Is it better to finance through the dealer or a bank?
Neither is always better. Dealers can offer manufacturer-subsidized rates that banks cannot match, especially on new cars for buyers with strong credit. But dealer-arranged loans can also include a rate markup. The only reliable way to decide is to get a preapproval from a bank or credit union first and ask the dealer to beat it on the same term and amount.
Can you negotiate the interest rate at a dealership?
Often, yes. When a dealer arranges a loan through an outside lender, the rate you are quoted may include a markup above the lender's buy rate, and that markup can usually be reduced. Having an outside preapproval in hand gives you the leverage to ask. Manufacturer promotional rates are typically fixed, but the vehicle price and add-ons remain negotiable.
Can I refinance a dealer car loan with my bank later?
Usually, yes. Many borrowers take dealer financing and later refinance with a bank or credit union, especially if rates drop or their credit improves. Check your contract for prepayment penalties first, and make sure the car still meets the new lender's age, mileage and value rules. Refinancing into a longer term can raise total interest even at a lower rate.
Why do dealers push their own financing?
Dealers commonly earn compensation from arranging financing, including part of any rate markup and sometimes a flat fee from the lender. The finance office also sells add-ons such as service contracts and gap coverage, which can be rolled into the loan. None of this makes dealer financing bad, but it is a reason to compare offers carefully.
Official Resources & Further Reading
Use these resources to check current guidance. Requirements and availability may vary by state and provider.
This guide is for general educational purposes and is not individualized financial, legal, tax or insurance advice. Product terms, rates and availability vary by provider and location. How we make money.
