72-month (6-year) car loans are now one of the most common loan terms — but they come with significant hidden costs that most buyers don't consider.
A 72-month loan gives you a lower monthly payment for the same car compared to a 48 or 60-month loan. On a $30,000 car at 7%, a 60-month loan costs $594/month while a 72-month loan costs $512/month. That $82 monthly difference is appealing — but it comes at a steep price.
That same $30,000 car at 7%: 60-month loan = $5,639 total interest. 72-month loan = $6,850 total interest. You pay $1,200 more just for the longer term. And lenders typically charge higher interest rates for longer terms, making the gap even wider in practice.
With a 72-month loan, you'll often be "upside down" (owing more than the car is worth) for the first 2–3 years, because cars depreciate faster than you're paying down the loan.
Cars depreciate roughly 15–20% per year in the early years. If you're 3 years into a 72-month loan and total the car, your insurance payout may be less than what you owe on the loan. This "gap" is a real financial risk — which is why GAP insurance exists.
If the interest rate is exceptionally low (under 4%), a longer term with minimal extra interest cost can make sense. But generally, financial advisors recommend keeping auto loan terms at 48–60 months maximum.
If you need a lower monthly payment, consider buying a less expensive car rather than stretching the loan term. A $22,000 car on a 48-month loan at 6% costs $516/month — less than the $30,000 car on a 72-month loan, with far less total interest.
Use our car loan calculator to see exactly how term length affects your total cost.
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