The average new car loan term in the US has crossed 70 months. Dealers and lenders heavily promote 72-month and 84-month loans because lower monthly payments make expensive cars seem affordable. But long car loans cost far more than they appear — in interest, in risk, and in financial flexibility.
Here are five concrete reasons to say no.
Reason 1: You Pay Thousands More in Interest
The monthly payment difference between a 48-month and 72-month loan looks attractive. The total cost is not.
| Loan Amount | APR | Term | Monthly Payment | Total Interest | Total Cost |
|---|---|---|---|---|---|
| $35,000 | 7% | 36 months | $1,081 | $2,924 | $37,924 |
| $35,000 | 7% | 48 months | $837 | $2,180 | Wait — |
| $35,000 | 7% | 48 months | $837 | $3,174 | $38,174 |
| $35,000 | 7% | 60 months | $693 | $4,579 | $39,579 |
| $35,000 | 7% | 72 months | $599 | $7,094 | $42,094 |
| $35,000 | 7% | 84 months | $527 | $9,265 | $44,265 |
Stretching from 48 to 84 months saves $310/month but costs an additional $6,091 in interest over the life of the loan — money that buys nothing except the privilege of paying longer.
Reason 2: You’ll Be Underwater on the Loan for Years
Cars depreciate roughly 15%–25% in the first year and 10%–15% each subsequent year. Loan balances on long-term loans shrink slowly because early payments go mostly to interest.
On a 72-month loan, a buyer who puts $2,000 down on a $35,000 car may owe more than the car is worth for the first 3–4 years. This is called being “upside down” or having negative equity.
Being underwater means:
- If the car is totaled, you owe the gap after insurance pays
- If you need to sell or trade in, you must cover the difference out of pocket
- You cannot easily refinance to a better rate without rolling over negative equity
Reason 3: Long Car Loans Trap You in the Car
The average American keeps a car 8–10 years. But a lot can change — job, family size, commute, income. A 72-month loan locks you in financially for 6 years. If your circumstances change and you need to sell, you may be stuck with a car worth less than you owe, with no clean exit.
Shorter loan terms give you options. A 36-month loan means you’re free and clear in 3 years.
Reason 4: The Car May Need Major Repairs Before the Loan Is Paid Off
Most new car warranties cover 3 years/36,000 miles (bumper to bumper) and 5 years/60,000 miles (powertrain). An 84-month loan on a new car means the last 2+ years of payments come with no manufacturer warranty and increasing maintenance costs — while you’re still making loan payments.
On a used car with an 84-month loan, you could be paying a loan on a 15-year-old vehicle with 150,000 miles. The car may not last as long as the loan.
Reason 5: A Long Loan Is Often a Budget Red Flag
If you need a 72-month or 84-month term to afford the monthly payment, the car is likely outside your budget. A useful rule: your total monthly car costs (payment + insurance + fuel + maintenance) should not exceed 15%–20% of your take-home pay.
Worked example: Take-home pay of $5,000/month → max car costs of $750–$1,000/month. If the car payment alone requires 72 months to fit under $700, add insurance ($150+), fuel ($150+), and maintenance, and you’re over the threshold.
The solution is not a longer loan — it’s a less expensive vehicle or a larger down payment.
Recommended Loan Terms
| Vehicle Type | Recommended Max Term |
|---|---|
| New car | 48 months |
| Certified pre-owned | 36–48 months |
| Used car (under 5 years old) | 36 months |
| Used car (5–10 years old) | 24–36 months |
Related Articles
- How Do Car Loans Work?
- How Much Should I Spend on a Car?
- Trade In a Car When You Owe Money 2026
- Certified Pre-Owned Cars 2026
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