The best way to finance a car involves getting preapproved from a bank or credit union first to compare rates, making a significant down payment (aim for 20% for new/10% for used) to lower loan amounts, choosing the shortest affordable loan term (like 36-48 months) to save on interest, and using a good credit score for better rates, while being wary of dealer add-ons and "spot delivery" deals.
For years, dealerships have been using a tactic called a “four square”—a sheet of paper divided into four boxes where the salesperson will write down your trade value, the purchase price of the vehicle you're buying, your down payment, and your monthly payment.
To get the best deal, avoid saying you love the car, are desperate for a vehicle, don't care about the total price (only monthly payments), or are an expert in your job/credit, as these reveal weaknesses; instead, focus negotiations on the out-the-door price, stay vague about your needs, and show you're willing to walk away to maintain leverage.
Paying cash may hinder your chances of getting the best deal
"When dealers are negotiating the purchase price, they anticipate making money on the back end, via financing," Bill explains. "So if you tell them up front you're paying cash, the dealer knows he has no opportunity to make money off you from financing.
It may be easier to secure a loan for a new car than it is for a used car, and new car loans often come with lower interest rates. Used cars can be a good fit if you're on a budget and they generally cost less to insure; however, interest rates for used car loans are often higher than for new car loans.
Dave Ramsey's core car buying rule is to pay cash for a reliable used car, avoiding debt and new car depreciation; he suggests only buying new if you're a millionaire, and generally, the total value of all your vehicles shouldn't exceed 50% of your annual income. His philosophy emphasizes buying what you can afford outright, viewing cars as depreciating assets that shouldn't trap you in debt.
You won't just be paying more in interest for a seven-year loan. You'll also be at greater risk of going upside-down on the loan, which means you owe more than your car is worth. This is because cars quickly depreciate in value. By extending the length of your loan, you could end up owing more than your car is worth.
A down payment between 10 and 20 percent of the vehicle price is the general recommendation, although you can put down more. One reason to make a down payment is to reduce the amount you must borrow. By reducing the amount financed, you save some even before you start negotiating the car price.
Yes, car interest rates saw a gradual decline through 2025, influenced by Federal Reserve rate cuts, with modest decreases seen by year-end, though significant drops were not expected immediately; strong credit scores yielded better rates, while those with poor credit saw less relief, with expectations for slow improvement into 2026.
To lower your car payment, you can refinance for a lower interest rate, extend the loan term (but pay more interest overall), negotiate with your lender for a loan modification, sell or trade in for a cheaper car, or remove optional add-ons like extended warranties from your loan. Making a larger down payment or extra principal payments reduces the total loan amount and interest, while switching to a lease might offer lower monthly costs but you don't own the car.
Simply put: You're missing out on scoring the best deal if you're hell-bent on lowering the price and paying in cash. If a dealership knows it can make money on the back end, it'll gladly give up more on the front end. It may even go into the red to sell you a car.
Key takeaways. Dealership car loans offer convenience, but you'll likely find better deals on interest rates by getting a loan from a bank, credit union or online lender. To secure the best auto loan rate, whether at the dealership or elsewhere, it is essential to arrange financing before visiting the car lot.
The Nine Worst Things to Do at the Car Dealership
Prioritize showcasing and promoting the 20% of vehicles that account for 80% of your sales. Train your sales team to focus on the 20% of sales techniques that result in 80% of successful deals. Prioritize the use of the 20% of promotional offers or incentives that drive 80% of your sales.
A little preparation, and knowing some of the common car dealer tricks used by salespeople, can help you close on a car with confidence.