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Biweekly Mortgage Payments: Pros and Cons

Biweekly mortgage payments mean paying half your monthly payment every two weeks, which adds up to 26 half payments, or 13 full payments, a year. On a $300,000 30 year loan at 6% that extra payment cuts about five years off the loan and saves roughly $73,000 in interest, and you can get the same result for free by adding 1/12 of a payment to principal each month. The MonitorBankRates national average is 7.18% on a 30 year fixed mortgage and 6.73% on a 15 year fixed, verified by MonitorBankRates as of October 13, 2026.

30 year fixed
7.18%
avg rate
15 year fixed
6.73%
avg rate

MonitorBankRates national averages as of October 13, 2026, computed from rates published by more than 8,000 banks and credit unions.

Key facts

  • Extra Payments/Year: 1 additional payment
  • Example Savings: About $73,000 on $300K at 6%
  • Early Payoff: About 5 years sooner
  • DIY Alternative: 1 extra annual payment = same result

Making biweekly mortgage payments instead of monthly payments is one of the simplest strategies for paying off a mortgage faster and reducing total interest costs, and it requires no refinancing, no change to your loan terms, and no dramatic shift in your budget. The math is straightforward: paying every two weeks results in 26 half-payments per year, which is the equivalent of 13 full monthly payments instead of 12. That one extra payment each year accelerates principal reduction and shortens the loan term meaningfully over time.

How Biweekly Payments Work

Here is the basic mechanics:

Because mortgage interest accrues daily on most loans, making payments more frequently also means slightly less interest accrues between payments. This compounds the benefit over time, though the primary driver of savings is the one extra annual payment.

Biweekly Payment Example

Example: $300,000 30-Year Fixed Mortgage at 6.00%

Monthly payment: approximately $1,798.65
Biweekly payment: $899.33 (half the monthly amount)
Annual payments: 26 × $899.33 = $23,382 vs. 12 × $1,798.65 = $21,584
Extra paid per year: approximately $1,799
Result: Loan paid off in approximately 24 years 7 months instead of 30 years. Total interest savings: approximately $73,000.

Savings are larger for higher balances, higher interest rates, and earlier in the loan term (when more of each payment goes toward interest). Run your own numbers with a mortgage payoff calculator to model the exact impact for your situation.

Advantages of Biweekly Payments

Disadvantages and Cautions

Not All Servicers Apply Payments Immediately: Some loan servicers that offer biweekly programs hold each half-payment until the second one arrives before crediting your account, essentially making it a monthly payment split across two transactions. This eliminates the daily interest benefit entirely. Always ask specifically: "Do you apply each payment immediately upon receipt?"

The DIY Alternative: Same Result, No Fees

You can achieve the same payoff acceleration without enrolling in any program and without paying any fees. Two approaches:

Option 1: One Extra Payment Per Year

Make 12 regular monthly payments, then make one additional full monthly payment per year, applied entirely to principal. This produces the same result as biweekly payments. You can make this extra payment whenever it is financially convenient: a tax refund, a bonus, or a specific month you choose.

Option 2: Add 1/12 to Each Monthly Payment

Divide your monthly principal and interest payment by 12, and add that amount to each monthly payment. This spreads the extra payment evenly across the year and is easier to incorporate into a fixed monthly budget. Specify to your lender that the additional amount should be applied to principal.

Always Specify Principal Application: When making extra payments, explicitly instruct your servicer (in writing or through the payment portal) that the additional funds should be applied to principal, not to future payments. Some servicers default to crediting extra payments as future scheduled payments rather than reducing the principal balance immediately.

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Frequently Asked Questions

How do biweekly mortgage payments work? ▼
Instead of making one full payment per month, you pay half your monthly amount every two weeks. Because there are 52 weeks in a year, this produces 26 half-payments, or 13 full monthly payments rather than 12. The extra annual payment reduces principal faster, shortens the loan term, and cuts total interest paid.
How much money can biweekly payments save? ▼
On a $300,000 30-year mortgage at 6%, biweekly payments can save approximately $73,000 in interest and pay off the loan about five years early. Savings are larger with higher balances and higher rates. Use a payoff calculator to model the exact savings for your specific loan.
Do all lenders offer biweekly payment programs? ▼
No, and some that do charge setup fees of $200 to $400 or more. Before enrolling, verify that the servicer applies each half-payment immediately upon receipt rather than holding it until the full monthly amount accumulates. If they hold payments, the interest-reduction benefit is eliminated.
Can I get the same result without a biweekly plan? ▼
Yes. You can make one extra payment per year applied to principal, or add 1/12 of your monthly payment to each regular payment. Both approaches produce the same payoff acceleration as biweekly payments, cost nothing, and require no enrollment. Just make sure to specify that extra amounts are applied to principal.
What should I watch out for with biweekly payment programs? ▼
Key things to verify: whether payments are applied immediately or held until a full monthly amount accumulates (the latter kills the benefit), what setup fees are charged, and whether third-party services take ongoing fees. In most cases, the DIY approach of making one extra annual principal payment is simpler and costs nothing.

This article is for general information and is not financial advice. Rates shown are market averages, not offers; terms and fees are set by each institution.