Extra Payment Savings Calculator
Accelerate your journey to debt freedom. Calculate how adding an extra recurring payment directly to your loan principal slashes total interest charges and cuts years off your term.
Current principal balance owed
Contracted annual interest percentage
Years remaining on the contract
Additional cash applied directly to principal each month
Total interest expense eliminated by prepayments
How to Use This Calculator
- Enter your remaining principal loan balance.
- Input your annual loan interest rate and remaining years.
- Specify how much extra money you plan to pay each month.
- View your total interest savings and exact years shaved off the loan.
Formula & Calculation Methodology
Iterates monthly reducing balance amortization where the extra cash reduces outstanding principal directly, curtailing future interest compounding.
Worked Example
$200,000 loan at 6.5% for 30 years with $200 extra per month
Frequently Asked Questions
Does the extra payment automatically go to principal?↓
Always specify "principal-only prepayment" on your lender portal or billing slip so the servicer does not treat it as an early prepayment of future interest.
Is there any penalty for paying off a mortgage early?↓
Most modern residential mortgages in the US have no prepayment penalties, but verify your promissory note to ensure no clause exists.
Is it better to invest extra money or pay down the mortgage?↓
If your guaranteed mortgage interest rate exceeds your expected after-tax investment return (or risk tolerance), paying down debt offers an unbeatable risk-free return.
Can making one extra payment per year make a big difference?↓
Yes! Making one extra payment per year (bi-weekly payment schedule) typically knocks 4 to 6 years off a standard 30-year mortgage.
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Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.