How much should you put down on a car loan?

How much should you put down on a car?

Aim for 20% down on a new car and 10% on a used one. On the average $46,000 new vehicle, 20% comes to $9,200 — well above the Q3 2025 average down payment of about $6,020, which was near a four-year low. The bigger your down payment, the faster you build equity instead of owing more than the car is worth.

• New car: ~20% offsets the steep first-year depreciation.
• Used car: ~10% is enough since used cars depreciate more slowly.
• Trade-in equity counts: positive equity on your current car can cover part of the down payment.

Edmunds tracks these averages; they shift with rates and prices, so treat the 20/10 rule as a floor, not a ceiling.

Why does a down payment matter so much?

A down payment shrinks the amount you finance, which lowers both your monthly payment and the total interest you pay. On a 6.37% APR, 60-month loan, every extra $1,000 down saves roughly $116 in total interest and trims about $19 off the monthly payment. It also protects you from going underwater early.

• Lower payment: less borrowed means a smaller monthly bill.
• Less interest: you pay interest only on the amount you finance.
• Equity cushion: you owe less than the car is worth from the start.
• Easier approval: a strong down payment can offset thin credit.

Does a bigger down payment lower your interest rate?

Sometimes. A larger down payment lowers your loan-to-value ratio, which a few lenders reward with a slightly better rate — most often on used cars or for weaker credit. Your credit score is the stronger lever: the Q4 2025 national new-car average was 6.37% APR. Either way, more down means less total interest paid.

Rate averages come from Experian. See what counts as a good APR for a car loan before you sign.

Should you put more down or keep cash in savings?

Keep an emergency fund first. Put down enough to avoid negative equity — usually 10–20% — but don't drain your savings to do it. If your loan rate is high, extra down payment acts like a guaranteed return equal to that rate; if it's low, keeping cash liquid for emergencies or higher-return investments may serve you better.

• Protect three to six months of expenses before adding to the down payment.
• High loan rate? Extra down payment is a guaranteed saving.
• Low loan rate? Liquidity may be worth more than shaving interest.
• Always avoid rolling negative equity from an old loan into the new one.

What happens if you put too little down?

You start underwater. A small down payment plus fast depreciation means you owe more than the car is worth, so you can't easily sell or trade without bringing cash. If the car is totaled, you could owe the lender for a vehicle you no longer have unless you carry gap insurance to cover the difference.

• Negative equity makes trading in or selling far harder.
• A total loss can leave a balance after the insurance payout.
• Consider gap insurance if you finance with little down.
• Read what happens when you trade in a car you still owe on to avoid stacking debt.

Frequently asked questions