Loan Payoff Calculator
See how much faster you can eliminate a balance before you commit to extra payments, refinancing, or consolidation.
Need a walkthrough? Read the Loan Payoff Calculator Guide.
How Loan Payoff Planning Works
The Loan Payoff Calculator shows how extra payments can accelerate your loan payoff and reduce total interest. Enter your loan details and any additional monthly or one-time payments to see the new payoff date and how much interest you will save compared to the standard payment schedule.
Formula
Interest Saved = Total Interest (standard) - Total Interest (with extra payments)
Key Features
- ✓Calculate payoff date with extra payments
- ✓See total interest savings from additional payments
- ✓Compare standard vs. accelerated payoff timelines
- ✓Model one-time lump sum payment impacts
Pro Tip
Making just one extra monthly payment per year on a 30-year mortgage can shorten the loan by 4-5 years and save tens of thousands in interest. Apply extra payments to principal, not escrow.
When to use this calculator
- When you want to test how extra monthly payments change the payoff date.
- Before refinancing to see whether you can solve the problem without a new loan.
- When deciding how to direct bonuses, tax refunds, or other lump sums.
Worked example
A remaining balance of $18,000 at 7.5% with a $450 monthly payment is repaid in about 47 months with roughly $2,777.97 in interest. Increasing the payment to $550 shortens the payoff by about 10 months and cuts interest by roughly $576.71. That is the kind of trade-off this calculator is built to surface quickly.
How to interpret your results
The biggest question is whether the faster payoff is sustainable. If the aggressive payment only works in a perfect month, it is not a real plan. Treat the interest saved as the reward for a payment level you can keep making even when expenses fluctuate.
If you need ideas for generating extra principal payments, read 5 Proven Strategies to Pay Off Your Loan Faster.
What to do next
Decide whether faster repayment beats the flexibility of consolidation, then lock in the plan you can actually follow.
Related tools: Loan Calculator and Debt Payoff Calculator.
Compare restructure options: Debt Consolidation Loan vs Balance Transfer.
If paying this balance down is part of a home goal, compare the later housing payment with Mortgage Calculator.
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