Should I pay the mortgage or invest?
Compare the guaranteed interest avoided with the uncertain after-tax investment return, but keep liquidity, retirement matching, expensive debt, and personal risk tolerance in the decision.
LEVEL 400 · REDUCE DRAG
Mortgage Payoff Calculator
See how additional principal changes the payoff date and lifetime interest.
Example numbers. Tap any field to replace it with yours.
Illustrative educational estimate. Returns and outcomes are not guaranteed.
RESULT
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HOW TO USE THE RESULT
How extra mortgage payments change the loan
Extra principal reduces the balance that future interest is charged against. The impact depends on the remaining balance, interest rate, required principal-and-interest payment, and when the extra payment begins. Taxes, insurance, HOA dues, and mortgage insurance are not loan principal and do not accelerate payoff.
Does biweekly payment always help?
Only if it produces additional principal during the year. Splitting twelve payments into twenty-four half-payments does not create the same benefit as making twenty-six half-payments.
Will my servicer apply the extra correctly?
Confirm that additional money is marked principal-only and review the next statement. A faster payoff model is useless if the servicer treats the money as an early future payment.
CONTINUE YOUR FLIGHT PLAN