Cost data

What a 72-Month Car Loan Actually Costs

Written by JaredLast reviewed 2026-08-05

Figures reviewed 2026-08-05 (yesterday). Rate data is sourced per table and each table states its own reporting period.

What does a 72-month car loan cost?

A 72-month loan lowers the monthly payment by a modest amount and raises the total cost by a large one. Six years is now the ordinary term rather than the long one, which is exactly why it deserves the arithmetic.

Here is $18,000 financed at four terms, at the two rates most bad-credit buyers actually see.

At 18.86% — the subprime average

*$18,000 financed at 18.86% APR, the Experian subprime (501–600) used-vehicle average for Q4 2025.*

At 21.58% — the deep-subprime average

*$18,000 financed at 21.58% APR, the Experian deep-subprime (300–500) used-vehicle average for Q4 2025.*

Read the 72-month row of the second table carefully. An $18,000 vehicle financed for six years at the deep-subprime average is repaid as $32,241, of which $14,241 is interest — close to 80% of the price of the car, paid a second time.

What does the sixth year actually buy?

Less than the fifth year did, and much less than the payment difference suggests.

*Computed on $18,000 financed. Rates: Experian, Q4 2025.*

The 60-to-72 rows are the trade most buyers are actually making, because 60 months is what they walked in expecting and 72 is what the desk offers when the payment does not fit. It buys $46 a month at 18.86% and costs $2,260.

Put differently: you are paying roughly $2,260 to reduce the payment by less than the cost of a phone plan, on a car that will be six years older when it is finally paid off.

Each additional year buys less than the one before it. The seventh year is the weakest of all — on this same $18,000 at 18.86% it saves $32 a month and adds $2,353 in interest. The full seven-year comparison is on what an 84-month car loan costs.

How much does the rate change the penalty?

Enormously. The same extra year is a minor cost at a good rate and a large one at a bad rate, which is why blanket advice about loan terms tends to be useless.

*$18,000 financed. Rates: Experian used-vehicle averages by tier, Q4 2025.*

A super-prime borrower stretching to 72 months spends $690 for the privilege. A deep-subprime borrower doing the identical thing spends $2,670 — nearly four times as much for the same year, on the same car.

Advice written for the first row circulates freely and gets applied to the last row. The people who most need the lower payment are the people for whom the long term costs the most, and that is not a coincidence: it is the same risk pricing showing up twice.

Why 72 months keeps you underwater longer

Because the balance falls slowly at the start of a long, high-rate loan while the vehicle depreciates fastest in exactly those months.

Most of each early payment is interest rather than principal. The car's value, meanwhile, drops on its own schedule, indifferent to the loan. The two lines cross later on a 72-month loan than on a 60-month one, and until they do you owe more than the car is worth — that is negative equity.

Edmunds reports that roughly 30% of trade-ins are underwater by an average of about $7,100 (Edmunds, 2026). That gap does not vanish at trade-in; it is typically rolled into the next loan, at the next subprime rate, over the next long term.

Being underwater has consequences before any trade-in:

• You cannot sell your way out, because the sale does not cover the payoff.
• A total loss leaves you owing money, since insurance pays the car's value, not your balance. That is what gap insurance is for.
• Refinancing gets harder, because lenders cap loan-to-value and a balance far above the vehicle's value may not qualify.

There is also the question of whether the loan survives six years at all. Subprime 60+ day delinquency reached 6.90% in January 2026, the worst reading in the Fitch index's 32-year history, and Cox Automotive counted roughly 1.73 million repossessions in 2024. A longer term means more months in which something can go wrong, on a balance that stays above the vehicle's value for longer.

When is 72 months defensible?

There are honest cases, and they have a specific shape.

When the rate is low. The table above makes this concrete: at 6.82% the sixth year costs $690. Very few readers of this page are offered that rate, but if you are, the term is a modest cost rather than a trap.

When the lower payment is a real safety margin and you intend to pay ahead. Irregular income is a genuine reason to want a smaller required payment. This works only if the contract has no prepayment penalty and extra payments reduce principal rather than advancing the due date. Confirm both in writing — not verbally, and not after signing. See whether to pay off a car loan early.

When it is 72 instead of 84. If the choice on the desk is between two long terms, the shorter one is materially better.

What is not defensible is using the extra year to afford more car. That is how the $32,241 in the second table happens, and it is the most common version by a wide margin.

What to do instead

In rough order of how much they help:

1. Finance less. Every table on this page improves when the amount financed goes down, and it is the only lever that lowers the payment and the total cost at the same time. 2. Put more down. At 18.86% over 72 months, each $1,000 down cuts about $23 a month and $677 in interest — see how much down payment for a car and the down payment pillar. 3. Take 60 if 60 works. Do not sign 72 because it is what was printed on the sheet. 4. Fix the rate later rather than the term now. Twelve on-time payments frequently move a subprime borrower up a tier; refinancing to a lower rate on the remaining balance captures real money, while refinancing into another six years does not. See when you can refinance. 5. Do not roll negative equity into the new loan if there is any way to avoid it.

For the rate to expect at your score, see car loan interest rates by credit score. For where long terms have taken the typical payment, see what the average car payment actually is.