Your car payment
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Key takeaways
- Dealers sell payments; lenders sell terms. Longer terms shrink the payment while growing the total cost.
- The 20/4/10 guideline: ~20% down, no more than 4 years, all car costs under 10–15% of income.
- Get pre-approved by a bank or credit union before the dealership — it turns 'what payment fits?' into 'beat this rate.'
Table of contents
The long-term-loan trap
Stretching from 60 to 84 months can cut the payment by a couple hundred dollars — while adding thousands of interest and keeping you underwater (owing more than the car's worth) for years. Cars depreciate fast; loans amortize slowly. The calculator's "shorter term" row shows what one year less costs and saves. If only an 84-month payment fits the budget, that's the budget saying the car is too expensive.
Borrowing smart
Credit unions routinely beat dealer financing — check MyCreditUnion.gov to find one, and read the CFPB's auto loan guide before signing anything with add-ons folded in. Check the payment against your whole budget with the DTI calculator, and if an existing car payment is crushing you, our debt relief guide covers the honest options (including when selling the car beats refinancing it).
Frequently asked questions
What's a good interest rate on a car loan?
It tracks your credit tier and whether the car is new or used — strong credit earns single digits, thin credit can face rates several times higher. Always compare a credit union quote against the dealer's.
How long should my car loan be?
48–60 months for most budgets. Beyond that, interest snowballs and negative equity lingers — the 20/4/10 guideline exists for a reason.
Should I put money down on a car?
Yes when possible — around 20% offsets first-year depreciation so you're not underwater the day you drive off.
Estimates are informational only, not financial advice or an offer of credit — see our disclaimers.