Pay Off a Car Loan Early or Invest? A Worked Example

Short answer: to decide whether to pay off a car loan early or invest, compare the loan's interest rate with the return you could reasonably expect. Paying down a loan earns its interest rate with certainty, while investing earns an uncertain return. On a $25,000, 60-month loan at 7.5%, an extra $200 a month saves about $1,683 in interest and clears the loan in 41 months, which beat the roughly $1,033 gain from investing the same $200 at an assumed 7%.

Key takeaways

• Paying off a loan saves the interest you avoid, a certain amount. Investing may earn more or less.
• The higher the loan rate, the stronger the case for paying it off. Around 4% the two are close, and at 7.5% or more paying off wins in this example.
• Before either, keep a starter emergency fund and capture any employer retirement match.
• Check your loan for prepayment penalties and make sure extra money goes to principal.

What does an extra $200 a month do to a car loan?

The table uses a $25,000 loan over 60 months at three interest rates, and an extra $200 added to each payment. The investment column shows what $200 a month earns over the same shorter period at an assumed 7%, as an illustration, above the amount you put in.

At 4%, investing at 7% would come out slightly ahead, if the 7% materialised. At 7.5% and 10%, paying the loan down wins by a clear margin, and it does so without any market risk. The investment figure is shown before tax and is not promised, since returns vary and can be negative over short periods.

How do you decide?

1. Find your loan's rate. It is on your statement as the APR.
2. Compare it with a realistic return. A diversified stock portfolio has returned roughly 7% a year over long periods, but over 3 to 4 years, the length of a car loan, it can be well above or below.
3. Add the certainty. Interest avoided is certain. An investment return is not. A loan at 6% or more is usually worth paying off first.
4. Take care of the basics. A $1,000 starter fund, then any employer match. See how to build an emergency fund and what a 401(k) is.
5. Check your other debts. A card at 24% comes before a car at 5%. See the debt payoff plan.

The same logic applies to other loans: see whether to pay off a loan or invest the extra money and student loans: pay early or invest.

How do you pay a car loan off early?

• Send extra to principal. Tell the lender the extra is for principal, not for the next payment. Some default to treating it as an early payment.
• Round up. Paying $550 instead of $501 is easy to automate.
• Make a half payment every two weeks, which is 26 half payments, or 13 full payments a year, if your lender applies them promptly.
• Check for prepayment penalties. Most auto loans do not have one, but confirm in your contract.
• Use windfalls. A bonus can shorten the loan. See what to do with a windfall or bonus.

Are there reasons not to pay early?

• A very low rate. At 0% to 3%, keeping the loan and holding the cash is reasonable. Interest is small.
• A thin cash cushion. Once cash is in the car it is hard to get out. Keep an emergency fund.
• Credit mix. Paying off an instalment loan can slightly change your credit score in the short term, but this is a minor factor compared with saving interest. See how to build credit.
• A better use of the money. An employer match is an immediate 50% to 100% return, so it comes first.

Not sure how much car you can afford at all? See how much car you can actually afford.

Sources and further reading: the Consumer Financial Protection Bureau has guides on auto loans and prepayment, and SEC Investor.gov explains investment risk.

General education, not financial advice. Reviewed October 2026. The loan figures are computed for a $25,000, 60-month loan with monthly interest and fixed payments. The investment figure assumes a constant 7% annual return and is an illustration only. Returns are not guaranteed, and your own loan terms will differ.

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