Calculate savings from biweekly versus monthly mortgage payments with years saved, interest reduction, and payment comparison.
Biweekly payment plans split your monthly mortgage payment in half and collect it every two weeks instead of once a month. Because a year has 26 two-week periods, that works out to 13 full monthly payments a year instead of 12 - one extra payment, applied to principal, every year. The calculator takes your loan balance, rate, and term, builds both a standard monthly amortization schedule and the accelerated biweekly one, and reports the payoff date difference, total interest saved, and the two payment amounts side by side. The most common surprise: people assume biweekly means paying twice a month, which is only 24 payments a year and produces none of this effect.
The tool takes your existing (or calculated) monthly payment and halves it to get the biweekly draft amount, then schedules that amount every two weeks - 26 times a year. Because 26 half-payments equal 13 monthly payments, the borrower's annual principal contribution rises by roughly one extra monthly payment without any change in the payment's nominal size.
Two amortization schedules run against the same starting balance and rate: one applying the standard monthly payment on a monthly cadence, the other applying the half-payment every two weeks. Each schedule accrues interest on the declining balance until it hits zero; the tool then compares payoff dates and sums the interest paid under each to report years and dollars saved.
No. Twice-a-month payments total 24 payments a year with no extra principal. Biweekly means every two weeks, which is 26 payments a year - the equivalent of one extra full monthly payment annually - and that extra payment is what produces the interest and time savings this tool reports.
Not automatically. Some servicers apply each half-payment to your balance immediately, but others hold it until a full payment amount is collected, which delays the benefit. Ask your servicer how partial payments are processed, or replicate the effect yourself by adding one-twelfth of a payment to each regular monthly payment.
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