Calculate bi-weekly mortgage payments and see how much interest and time you save compared to monthly payments. Includes escrow, year-by-year balance comparison.
Switching from monthly to bi-weekly mortgage payments is one of the simplest ways to pay off your mortgage faster and save thousands in interest. The math is straightforward: making 26 half-payments per year is equivalent to 13 full monthly payments — effectively one extra payment each year toward principal.
This extra payment may not seem dramatic, but over the life of a 30-year mortgage, it can shave 4–6 years off the term and save tens of thousands in interest. The best part is that each bi-weekly payment is exactly half of your monthly payment, so it fits naturally into a bi-weekly paycheck schedule without straining your budget.
This calculator compares monthly vs bi-weekly payment strategies side by side. Enter your loan details and see the payment amounts, total interest under each scenario, years saved, and a year-by-year balance comparison. Add optional extra amounts to each bi-weekly payment for even faster payoff.
Bi-weekly payments are the lowest-effort way to accelerate mortgage payoff. You pay the same amount per payment (half of monthly) but end up making one extra payment per year. This calculator quantifies the savings so you can see whether setting up bi-weekly autopay is worth the minor administrative effort — spoiler: it almost always is.
Bi-weekly Payment = Monthly Payment ÷ 2. Annual payments: 26 bi-weekly = 13 monthly equivalents (vs 12 monthly). The extra annual payment goes entirely to principal, accelerating payoff. Interest saved = Total Interest (monthly) − Total Interest (bi-weekly).
Result: Bi-weekly: $949 every 2 weeks — saves $62,422 in interest — payoff 5.2 years early
A $300,000 loan at 6.5% for 30 years has a $1,896 monthly payment. Bi-weekly is $948 every two weeks. Over the life of the loan, you save $62,422 in interest and pay it off in about 24.8 years instead of 30.
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On a $300,000 loan at 6.5%, bi-weekly payments save about $62,000 in interest and pay off the loan about 5 years early. Savings increase with higher loan amounts and rates.
There are 52 weeks in a year, so 26 bi-weekly payments equals 13 half-payments (or 13 × half = 6.5 full payments vs 6 per half-year). This effectively makes one extra full payment per year, which goes entirely to principal.
Most lenders allow it, but some charge fees for bi-weekly programs. Check with your lender. Alternatively, divide your monthly payment by 12 and add that amount as extra principal each month for a similar effect.
They produce very similar results. Bi-weekly has a slight edge because payments are applied more frequently, reducing the average daily balance slightly. The difference is typically only a few hundred dollars over 30 years.
You can achieve the same result by paying 1/12 of a monthly payment extra each month, or by making one full extra payment at any point during the year. The key is the extra annual payment, regardless of timing.
Yes. Your escrow (taxes and insurance) is simply split into 26 bi-weekly amounts instead of 12 monthly amounts. Ask your servicer to set up bi-weekly including escrow.