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Loans & Mortgage

Biweekly Mortgage Payments: The 13th Payment Trick, Explained

Pay half your mortgage every two weeks and you make 13 full payments a year. Here is the savings math, plus the fee traps in lender programs.

By FreeCalculators Editorial · Published 2026-07-20 · Updated 2026-08-20 · 5 min read · 1201 words

For many homeowners, the mortgage represents the most significant financial commitment they'll ever make. A common question that arises is how to pay off a mortgage faster without significantly increasing monthly expenses. Enter biweekly mortgage payments, a strategy touted as a way to make a "13th payment" each year through a different payment schedule. But is this method genuinely the way to go, or are there better alternatives? Let’s explore the nuances of biweekly payments, how they compare to DIY extra principal payments, and why understanding the timing of payments matters.

The Mechanics of Biweekly Payments

Biweekly mortgage payment plans involve splitting your monthly principal and interest (P&I) payment in half and paying that amount every two weeks. For a $350,000 loan at 6.75% over 30 years, the monthly P&I is approximately $2,270. By paying $1,135 every two weeks, you'll make 26 half-payments over a year, which equals 13 full payments instead of the usual 12.

How Does This Save Money?

The idea behind biweekly payments is that by making one extra payment per year, you'll pay down the principal faster, thus reducing the interest you owe over the life of the loan. For the $350,000 loan mentioned, a biweekly plan could help you pay off the mortgage in approximately 25 years, saving you around $95,000 to $110,000 in interest over the loan’s term.

Audit Paid Biweekly Programs vs. DIY Extra Principal

Many banks and third-party companies offer biweekly payment programs, charging setup fees ranging from $295 to $495 and transaction fees of $2.50 to $8.50 per debit. While these programs promise convenience, they aren't necessarily the best option.

DIY Extra Principal Payments

Instead of enrolling in a formal program, you can opt to make extra principal payments on your own. By adding an extra 1/12th of your monthly P&I, or approximately $189, to each monthly payment, you can achieve the same payoff timeframe of about 25 years without incurring additional fees. This method also allows more flexibility, as you can adjust or skip extra payments if your financial situation changes.

When the Half-Payment is Applied

A critical aspect of biweekly payments is understanding when the payments are applied. Some lenders may not apply the first half-payment until the second half is received, which can diminish potential interest savings. The key is to ensure that the lender applies each half-payment as soon as it is made to maximize the impact on the principal.

The Escrow Quirk

Another consideration with biweekly payments is the handling of escrow accounts. Escrow covers taxes and insurance, expenses that remain unchanged whether you pay biweekly or monthly. While some programs may split escrow payments similarly, others do not, resulting in a potential mismatch. If your lender or service provider does not manage escrow payments biweekly, you might still need to handle these separately, which adds another layer to your financial management.

Why 1/12 Monthly Extras Often Beat a $395 Setup Fee

Critics of biweekly payment programs often cite the setup fee as a significant downside. By saving the $395 fee and opting for DIY extra payments, those savings could be applied directly to your mortgage principal, enhancing the cost-effectiveness of the DIY approach. Moreover, a fixed extra amount each month provides more control and predictability, which can be reassuring amid fluctuating financial circumstances.

Example: Monthly vs. Biweekly Comparison

Let's break down the numbers with a simple comparison:

| Payment Approach | Time to Payoff | Total Interest Paid | Setup Fees & Costs | |--------------------|----------------|---------------------|---------------------| | Biweekly Payments | ~25 years | ~$240,000 | $395 setup + $5/month | | 1/12 Extra Monthly | ~25 years | ~$240,000 | $0 (DIY approach) |

In this comparison, both the biweekly and 1/12 extra monthly payments result in the same payoff timeframe and total interest savings. However, the DIY option avoids additional fees, making it more financially advantageous.

Final Thoughts on Biweekly Payments

When evaluating biweekly payments versus making extra payments on your own, consider the costs, flexibility, and how each option fits into your overall financial strategy. For those who prefer simplicity and have a predictable income, enrolling in a biweekly program might be worth the cost. However, for budget-savvy individuals, setting up automatic extra principal payments could provide the same benefits without the added expense.

Steps to Implementing a DIY Extra Payment Strategy

  1. Calculate Your Extra Payment: Divide your monthly P&I by 12 to determine the extra amount to add each month.
  2. Set Up Automatic Transfers: Most lenders allow you to schedule extra payments automatically through online banking.
  3. Confirm Application to Principal: Ensure with your lender that extra payments are applied directly to the principal.
  4. Monitor Your Mortgage Statement: Regularly check to ensure payments are being applied correctly and adjust as necessary.

Incorporating these strategies can help you pay down your mortgage faster and save substantial amounts of interest over the life of your loan. Making informed decisions about how you handle mortgage payments can lead to significant financial benefits in the long term.

Related reading on freecalculators.cc: Mortgage Amortization Explained; Mortgage Payment Breakdown. Each sibling attacks a different edge of the same decision so you are not reading the same argument twice.

Frequently asked questions

What is the main advantage of biweekly mortgage payments?
The primary advantage of biweekly mortgage payments is that they allow you to make effectively one extra payment per year. This can help you pay off a $350,000 loan at 6.75% in approximately 25 years instead of 30, saving around $95,000 to $110,000 in interest over the life of the loan.
How does the biweekly payment schedule work?
Biweekly payments involve splitting your monthly principal and interest (P&I) payment in half and paying it every two weeks. For a $350,000 loan with a monthly P&I of about $2,270, you would pay $1,135 every two weeks, resulting in 26 half-payments per year, which equals 13 full payments instead of the usual 12.
What are the costs associated with bank-offered biweekly payment programs?
Banks and third-party companies may charge setup fees ranging from $295 to $495 and transaction fees of $2.50 to $8.50 per debit for biweekly payment programs. These fees can add up, making it important to consider whether the convenience is worth the cost.
How does a DIY extra principal payment strategy compare to biweekly payments?
A DIY approach involves adding an extra 1/12th of your monthly P&I, or about $189, to each monthly payment. This method can also help you pay off your mortgage in roughly 25 years without incurring additional fees, offering more flexibility to adjust payments if needed.
Why is the timing of payment application important in biweekly plans?
The timing is crucial because some lenders may not apply the first half-payment until the second half is received, which can reduce potential interest savings. It's important to ensure that your lender applies each half-payment as soon as it is made to maximize interest reduction.

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