Bi-Weekly Mortgage Calculator: How It Works

Quick Answer: What Is a Bi-Weekly Mortgage Payment?

A bi-weekly mortgage payment plan simply takes your standard monthly mortgage payment, cuts it in half, and requires you to pay that half-amount every two weeks. Because there are 52 weeks in a year, you end up making 26 half-payments. This equals 13 full monthly payments instead of the standard 12. That one extra payment per year goes directly toward your principal balance, shaving years off your loan and saving you tens of thousands of dollars in interest.

The Full Calculation: The Magic of 26 Payments

Most people get paid every two weeks. A bi-weekly mortgage aligns your housing payment with your paychecks, making budgeting easier while simultaneously acting as a wealth-building tool.

Let's look at the math for a $300,000 loan on a 30-year fixed term at 6.5% interest:

• Standard Monthly Payment (Principal & Interest): $1,896.20
• Standard Total Interest Paid (30 Years): $382,633

Now, let's switch to the Bi-Weekly Method (paying $948.10 every two weeks):

• New Effective "Extra" Payment: One full extra payment ($1,896.20) per year applied to the principal.
• Time to Payoff: 23 years and 7 months (You shaved off 6.5 years!)
• New Total Interest Paid: $291,521
• Total Savings: $91,112

Just by changing when you pay the bank, you saved over $90,000.

What Affects This Strategy?

Before you jump in, it's crucial to understand how lenders handle these payments:

1. Lender Policies: Some lenders hold your first half-payment in a neutral account and don't apply the funds until the second half-payment arrives. If they do this, you don't get the benefit of a smaller principal balance for those first two weeks. The real magic happens when the 13th "extra" payment hits at the end of the year.
2. Third-Party Fees: Some banks charge a setup fee (e.g., $300) or a monthly draft fee to set up automatic bi-weekly payments. Never pay these fees. You can accomplish the exact same result for free.
3. Interest Rates: The higher your interest rate, the more money a bi-weekly strategy will save you. If you have an ultra-low 3% rate, your savings will be much smaller compared to someone with a 7% rate.

How to Do It Yourself (For Free)

You don't need a formal bi-weekly program to reap the rewards. You can easily replicate the math on your own terms:

• The Divide by 12 Method: Take your monthly Principal & Interest payment, divide it by 12, and add that exact amount to your standard monthly payment. Instruct your lender to apply the extra funds strictly to the "Principal Balance." By the end of the year, you've made the equivalent of 13 payments.
• The Lump Sum Method: If you get an annual bonus or tax refund, just make one extra lump-sum payment equal to your monthly mortgage payment once a year.

Use Our Free Calculator

Want to see exactly how much time and money you can save by making extra payments?