Loan Overpayment
Find the shorter term and interest savings from overpaying a loan.
About Loan Overpayment
The implied balance is solved from the monthly payment, then run through amortization at the overpaid amount to find the shorter term. Overpaying the same loan month after month quietly erases years and thousands in interest without a refinance.
Formula
Loan Overpayment
Balance is priced at the current payment, then repriced at the higher payment
- overpayment
- Extra paid each month beyond the required amount
Worked example
With the default values below, Loan Overpayment returns New Term of 53. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Monthly paymentminimum 1
- 400
- Overpaymentminimum 0
- 50
- Current termminimum 1 months
- 60 months
- Interest rateaccepts 0–100 %
- 6 %
Results
- New Term
- 53 months
- Time Saved
- 7 months
- Interest Saved
- $150
Step by step
- 1Values used
- 2Loan Overpayment
- 3New Term= 53 months
- 4Time Saved= 7 months
- 5Interest Saved= 150
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or fees or charges into account.
- Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Loan Overpayment calculated?
Balance is priced at the current payment, then repriced at the higher payment The implied balance is solved from the monthly payment, then run through amortization at the overpaid amount to find the shorter term.
Why does Loan Overpayment matter?
Overpaying the same loan month after month quietly erases years and thousands in interest without a refinance.
What values do I need to enter?
This calculator takes 4 inputs: Monthly payment, Overpayment, Current term, Interest rate. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.