Why does a 72-month auto loan have a higher APR than a 60-month loan?

Lenders price the extra risk of a longer loan: the vehicle depreciates over six years, reducing the collateral value, and more can go wrong financially over a longer repayment period. The rate premium is typically 0.25 to 0.75 percentage points, though the exact gap depends on the lender, credit score, and vehicle type.

How much more interest does a 72-month loan cost?

On $25,000 at example rates (7.0% for 60 months vs. 7.5% for 72 months), the 72-month loan costs $1,420.40 more in total interest — $6,122.20 versus $4,701.80. The gap is larger at higher APRs and smaller at lower ones. Enter your own rate in the calculator for an exact comparison.

What is negative equity on a car loan?

Negative equity means you owe more on the loan than the car is currently worth. It is common in the early years of any auto loan, but it lasts longer with a 72-month term because the balance declines more slowly. The CFPB notes that negative equity carried into a trade-in is typically added to the next loan, which can start a cycle of increasing debt.

Can I pay off a 72-month loan early to avoid the extra interest?

In most cases, yes. Many auto lenders allow prepayment without penalty, so extra principal payments on a 72-month loan can shorten the effective term and reduce total interest. Confirm with your lender that there is no prepayment penalty before relying on this strategy.

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What does a 72-month car loan really cost compared with 60 months?

By AutoLoanLab · Published June 10, 2026 · Updated June 10, 2026

Financing $25,000 at 7.0% for 60 months costs $4,702 in total interest at $495 per month; stretching to 72 months at 7.5% APR costs $6,122 in total interest at $432 per month — saving only $63 a month while adding $1,420 in extra interest and two more years of payments.

The actual numbers side by side

To make the comparison concrete, consider $25,000 financed — a realistic amount after a modest down payment on a mid-range new or late-model used car. At 7.0% APR over 60 months the standard amortization formula yields a monthly payment of $495.03 and total interest of $4,701.80 over the life of the loan. At 7.5% APR over 72 months the monthly payment drops to $432.25, but total interest rises to $6,122.20 — a difference of $1,420.40. Total out-of-pocket rises from $29,701.80 to $31,122.20.

The APR difference in these examples (7.0% vs. 7.5%) is realistic because lenders price longer terms as higher risk; the actual spread at your lender may be wider or narrower. These are estimates for illustration, not a financing offer. Enter your own quoted rate in the calculator to see the exact figures for your situation.

Why the monthly-payment saving is smaller than it looks

Extending from 60 to 72 months adds 12 more payments. On $25,000 the monthly payment falls by just $62.78 — less than most people expect. The reason is that the payment formula allocates most of each early payment to interest: stretching the term means you are paying interest on a large balance for longer. The principal declines slowly either way; the term extension mainly delays how quickly you escape that interest burden.

Put differently, the $63 monthly saving costs you $1,420 over the loan life. If you invest $63 per month for six years instead, even at a conservative 4% annual return you would accumulate more than the interest savings produce. That framing does not make the 60-month loan automatically correct for every situation, but it shows why the monthly-payment headline understates the true cost of the longer term.

The rate premium on longer terms

Lenders typically charge a higher APR on 72-month loans than on 60-month loans for the same borrower and vehicle. The vehicle depreciates over time, which means the collateral backing the loan is worth less in year five and six than in year one. The lender prices that added risk into the rate. In the example above, the 0.5-percentage-point gap between 7.0% and 7.5% is typical of the spread observed in new-car loan offers in recent years, though the actual number varies by lender, credit score, and vehicle age.

Because the rate is embedded in every monthly calculation, even a small rate premium compounds noticeably over the longer term. At $25,000 financed, the 0.5% rate gap alone accounts for roughly $300 of the $1,420 interest difference; the remaining $1,120 comes purely from the extended borrowing period.

Negative equity — the hidden risk of a 72-month loan

A new car loses roughly 15–20% of its value in the first year and another 10–15% in year two, according to general depreciation curves widely cited by consumer financial regulators. A 72-month loan amortizes slowly in its early years because the monthly payment is dominated by interest, so the loan balance declines at about the same pace as depreciation — or more slowly. The result is a prolonged stretch of negative equity: the car is worth less than you owe on it.

The Consumer Financial Protection Bureau warns that negative equity becomes especially costly when you want to trade in or sell the car before the loan is paid off, because the deficit is typically rolled into the next loan. A 60-month loan closes this gap sooner because the higher payment retires principal faster, meaning you typically reach positive equity within two to three years rather than three to four on a 72-month schedule. If there is any chance you will sell or trade in the car before the term ends, the shorter loan materially reduces your risk.

When a 72-month loan may still be the right choice

If the monthly payment on a 60-month loan would strain your cash flow to the point of missing other obligations, the lower 72-month payment can be the more prudent near-term choice — as long as you understand the total-interest and negative-equity trade-offs. The key is to enter that choice deliberately: compare the total-cost line, not just the monthly payment, and plan to accelerate payments if your income allows. Many lenders have no prepayment penalty on auto loans, so extra principal payments on a 72-month loan can shorten the effective term significantly.

These figures are estimates, not financial advice. Your actual APR, total interest, and equity position will depend on the specific loan offer, your vehicle's depreciation curve, and how long you keep the car. Use the calculator to model the terms you are actually offered before signing.

A quick rule of thumb for comparing terms

Divide the extra interest you would pay on the longer term by the monthly payment saving to see how many months you need to break even. In this example, $1,420 ÷ $63 ≈ 23 months. That means you would need to keep the lower payment for nearly two years just to recover the interest cost difference — and the 60-month loan would have been paid off entirely in that window. The arithmetic almost always favors the shortest term whose monthly payment fits your budget.

Run both scenarios in the calculator with your own financed amount and the rates you are quoted. The total-interest and total-paid rows are the numbers to compare; the monthly payment is what the dealer wants you to focus on.

Questions

Why does a 72-month auto loan have a higher APR than a 60-month loan?: Lenders price the extra risk of a longer loan: the vehicle depreciates over six years, reducing the collateral value, and more can go wrong financially over a longer repayment period. The rate premium is typically 0.25 to 0.75 percentage points, though the exact gap depends on the lender, credit score, and vehicle type.
How much more interest does a 72-month loan cost?: On $25,000 at example rates (7.0% for 60 months vs. 7.5% for 72 months), the 72-month loan costs $1,420.40 more in total interest — $6,122.20 versus $4,701.80. The gap is larger at higher APRs and smaller at lower ones. Enter your own rate in the calculator for an exact comparison.
What is negative equity on a car loan?: Negative equity means you owe more on the loan than the car is currently worth. It is common in the early years of any auto loan, but it lasts longer with a 72-month term because the balance declines more slowly. The CFPB notes that negative equity carried into a trade-in is typically added to the next loan, which can start a cycle of increasing debt.
Can I pay off a 72-month loan early to avoid the extra interest?: In most cases, yes. Many auto lenders allow prepayment without penalty, so extra principal payments on a 72-month loan can shorten the effective term and reduce total interest. Confirm with your lender that there is no prepayment penalty before relying on this strategy.