Auto Loan Early Payoff Calculator
See interest saved by paying off your car loan ahead of schedule.
Inputs
$
%
years
$
Result
New Payoff Time18.1 yrs
Original Payoff Time25.0 yrs
Interest Saved$58,711.74
Months Saved83
About the Auto Loan Early Payoff Calculator
The Auto Loan Early Payoff Calculator shows how extra monthly payments shorten your car loan and reduce total interest.
Calculation method
Every dollar above the scheduled payment goes to principal, which cuts interest on all remaining months. The tool amortizes with and without the extra payment and compares them.
Same as mortgage payoff: Interest = Balance × APR/12; extra reduces principal immediately.How to use this calculator
- Enter your current auto-loan balance and rate.
- Enter the remaining months and the extra amount you'll add.
- Review the new payoff month and interest saved.
Example
A $20,000 balance at 7.5% with 48 months left plus $100 extra per month pays off about 8 months early and saves roughly $600 in interest.
Frequently asked questions
Are there penalties for paying off a car loan early?
Most US auto loans have no prepayment penalty. Check the contract; some subprime lenders use precomputed interest, which reduces early-payoff benefits.
Should I pay off the car or invest?
If the car rate is above 6–7%, prepaying is a strong risk-free return. Below that, an index fund may outpace the savings over the long term.
How do I make sure the extra goes to principal?
Send a separate payment marked 'principal only,' or select that option in the lender's portal. Otherwise many servicers apply it to the next scheduled payment.
Disclaimer: This calculator is for informational and educational purposes only and does not constitute financial, tax, or legal advice. Consult a qualified professional for decisions specific to your situation.