Do biweekly plans always save interest?

Often, but fees and crediting rules can erase gains.

Biweekly Mortgage Payments: Interest Savings

Biweekly schedules often equate to one extra monthly payment per year—more principal reduction when applied correctly, so less interest over time.

Verify timing, fees, and whether the servicer holds funds.

Amortization vs monthly baseline.

Do biweekly plans always save interest?: Often, but fees and crediting rules can erase gains.