Loan Payoff Calculator

Need context? Read our debt and loan payoff guide for assumptions and strategy.

Read the guide
Loan Details
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Debt Payoff Auto Loan Student Loan Mortgage
$0
Interest Saved
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New Payoff Time
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Time Saved
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New Total Interest
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Payoff Date

Without Extra Payments

Payoff Time -
Total Interest $0
Total Paid $0

With Extra Payments

Payoff Time -
Total Interest $0
Total Paid $0
You Save $0
Month Payment Principal Interest Balance

Loan payoff strategy guide

Use this calculator to see how extra payments change your payoff date and total interest. The model assumes a fixed rate and consistent payments.

Extra payments

Even modest extra payments can shorten the term because they reduce principal early.

Interest savings

Lower principal reduces the interest charged each month.

Consistency

Regular extra payments often outperform occasional large payments.

How the calculator works

  • Calculates monthly interest based on the remaining balance.
  • Applies your regular payment plus any extra amount.
  • Projects the new payoff timeline and total interest.

Planning tips

  • Confirm that extra payments reduce principal, not future payments.
  • Check for prepayment penalties before accelerating payoff.
  • Balance debt payoff with maintaining an emergency buffer.

Compare options

  • Test different extra payment amounts to see the impact.
  • Compare debt payoff to other financial priorities.
  • Consider refinancing if rates and terms are favorable.
This tool provides estimates only. Actual payoff may vary with rate changes or payment timing.

Loan payoff calculator FAQ

How do extra payments help?

Extra payments reduce your principal balance, which lowers interest costs and shortens your loan term.

Should I pay off debt or save?

Many people keep a small emergency buffer first, then prioritize higher-interest debt, while continuing to save steadily.

Are there prepayment penalties?

Some loans have prepayment penalties. Check your loan agreement or lender policy before making extra payments.

How do I make sure extra payments go to principal?

Confirm with your lender that extra payments are applied to principal, not to future payments.