Compare payment schedules
Use principal-and-interest only. Do not include taxes, insurance, HOA dues, or PMI in the monthly payment field.
| Payment path | Payment cadence | Payoff time | Payoff date | Total interest | Interest saved | Total paid |
|---|
| Biweekly period | Approx. month | Payment | Principal | Interest | Ending balance |
|---|
The schedule preview shows the first eight true-biweekly periods and the final payoff period. Actual servicer posting, fees, payment holds, and escrow changes are not modeled.
Methodology notes
Standard monthly
The baseline uses monthly interest and your principal-and-interest payment for the remaining term.
True biweekly
The calculator uses 26 payments per year and applies each half-payment immediately with a biweekly interest period.
DIY annual extra
The comparison adds one extra monthly principal payment every 12th monthly payment to show the simpler alternative.
Results are estimates for educational purposes only and are not financial advice. PlainFigure may earn a commission from partner links, but calculator formulas are independent. See full disclosure.