Payment Strategy Optimizer
Compares payoff strategies side by side — extra monthly, bi-weekly, one extra payment a year, a lump sum — and shows the interest saved and the years cut off the loan.
Loan Details
Configure Strategies
Effective payment: $2,861.21/mo
Pay $1,330.61 every two weeks — 26 half-payments/year equals 13 full payments instead of 12. No extra monthly cash required.
Make one additional full payment ($2,661.21) applied entirely to principal once per year. Equivalent to ~$221.77/mo extra.
New balance after lump sum: $390,000
Results
Best strategy: Bi-Weekly
Saves $136,567 in interest and pays off 6 yr 3 mo earlier than the standard schedule.
Loan Balance Over Time
Full Comparison
| Metric | Standard | +$200/mo | Bi-Weekly | 1 Extra/Year | $10,000 Lump Sum |
|---|---|---|---|---|---|
| Payoff Timeline | 30 yr | 24 yr 3 mo | 23 yr 9 mo | 24 yr | 27 yr 8 mo |
| Monthly Payment | $2,661.21 | $2,861.21 | $2,882.98 | $2,661.21 | $2,661.21 |
| Total Interest | $558,036 | $431,418 | $421,468 | $426,642 | $493,117 |
| Total Cost | $958,036 | $831,418 | $821,468 | $826,642 | $893,117 |
| Interest Saved | — | $126,618 | $136,567 | $131,394 | $64,919 |
| Time Saved | — | 5 yr 9 mo | 6 yr 3 mo | 6 yr | 2 yr 4 mo |
Tips for using this calculator
- Extra payments go directly to principal — confirm with your lender that no prepayment penalty applies.
- Bi-weekly programs offered by lenders sometimes charge a setup fee; you can replicate the strategy yourself for free by adding $221.77/mo.
- A lump sum works best early in the loan when the interest-to-principal ratio is highest.
- Combining strategies (e.g., bi-weekly + extra monthly) compounds the savings.
Estimates assume a fixed interest rate and that extra payments are applied to principal immediately. Actual results vary by lender.
The short answer
Do bi-weekly mortgage payments actually save money?
Yes, but only because of what they add up to. Paying half your payment every two weeks means 26 half-payments a year, which is 13 full payments instead of 12. The saving comes from that one extra payment, not from the schedule itself — so a single extra payment a year does the same thing.
Run your numbers with us
A calculator gives you an estimate. A conversation gives you the number you can actually plan around — David and Bri will walk you through it down to the decimal.