Auto Loan Down Payment: How Much Do You Need?

What is a down payment and why does it matter?

A down payment is the initial, upfront payment you make toward the total cost of the vehicle. It can be cash, the value of a trade-in, or a combination of both. For example, if you buy a car for $20,000 and pay $3,000 as a down payment, you borrow $17,000.

Making a larger down payment reduces the amount you need to borrow, which can reduce your monthly payment and the total cost of financing. It also lowers the loan-to-value (LTV) ratio—the total dollar value of the loan divided by the actual cash value of the vehicle—which may reduce the interest rate offered by lenders.

Sources: Consumer Financial Protection Bureau

Recommended down payment percentages

A common rule of thumb is to make a down payment of at least 20% for a new car and at least 10% for a used car. However, this is not a requirement, and actual averages are lower. An Edmunds analysis cited by Investopedia found the average down payment was about 11.7%.

In the fourth quarter of 2024, the average down payment for new cars was $6,856 and for used cars $4,219, according to Edmunds data cited by Bankrate.

Sources: Investopedia, Skyla Credit Union, Bankrate

How down payment affects monthly payments and interest

A larger down payment reduces the amount financed, which directly lowers your monthly payment and total interest paid. For example, on a $30,000 auto loan with a 6.60% annual interest rate and a 48-month term, a 20% down payment ($6,000) results in a monthly payment of $570 and total interest of $3,373, compared to $713 per month and $4,216 in interest with no down payment.

Similarly, the CFPB's auto loan worksheet shows that a $3,000 down payment on a $20,000 car with a 3.5% APR and a 48-month term results in a monthly payment of $353.22 and total interest of $1,155.

Sources: Bankrate, Consumer Financial Protection Bureau

Trade-offs and small down payments

Putting more money down has several benefits: it lowers your monthly payment, reduces total interest, may help you qualify for a lower interest rate, and reduces the risk of owing more than the car is worth (negative equity).

The trade-off is that you tie up cash that could be used elsewhere. A small down payment—such as 5% to 10% of the car’s price—still reduces the amount financed, but it leaves you with higher monthly payments, more total interest, and a greater chance of negative equity than a larger down payment. It may be acceptable if you have limited savings or a very low interest rate.

For leases, making a large down payment is generally not recommended, as you could lose that money if the vehicle is totaled or stolen.

Sources: Consumer Financial Protection Bureau, Investopedia

Zero-down loans: pros and cautions

Zero-down auto loans are possible and can preserve your cash for emergency savings or other priorities. They may be worth considering if you qualify for a 0% APR manufacturer promotion and can manage the higher monthly payment.

However, they are generally not recommended because they can lead to higher interest rates, higher monthly payments, and increased risk of negative equity, especially with longer loan terms. The CFPB warns that longer loan terms can put you at risk of negative equity, which is a particular concern with minimal down payments.

Sources: Investopedia, Skyla Credit Union, Consumer Financial Protection Bureau

Using trade-in value as a down payment

You can use the value of your current vehicle as part of your down payment. The trade-in value reduces the amount you need to borrow.

The CFPB recommends researching your current vehicle's value before trading it in, using resources like Kelley Blue Book, Edmunds, or Consumer Reports. This helps ensure you receive a fair trade-in amount and maximize the impact on your loan.

Sources: Consumer Financial Protection Bureau