Overview

A biweekly mortgage payment plan means you make a payment every two weeks equal to half your normal monthly mortgage. Because there are 26 two‑week periods in a year, you make the equivalent of 13 monthly payments instead of 12. That extra payment goes toward principal and accelerates payoff, producing interest savings over the life of the loan.

Why homeowners consider biweekly payments

  • Faster principal reduction: Making an extra payment each year lowers the outstanding balance sooner, so less interest accrues.
  • Shorter loan term: For many 30‑year loans, a biweekly schedule can shave years off the term, depending on interest rate and balance.
  • Budget alignment: If you’re paid every two weeks, automatic biweekly withdrawals can match cash flow and make extra payments feel smaller.

Drawbacks and warnings

  • Third‑party vendors: Companies that promise biweekly plans often charge fees. The Consumer Financial Protection Bureau warns some providers hold your funds in an account and then send payments on a monthly schedule, which can negate benefits or cause misapplication of payments (Consumer Financial Protection Bureau, consumerfinance.gov).
  • Lender policies and fees: Not all servicers accept true biweekly schedules; some may charge a processing fee or simply hold the extra funds until the scheduled monthly due date.
  • Limited benefit on low balances or short remaining terms: If you’re near payoff, the incremental savings can be minimal.
  • Liquidity tradeoff: Committing extra cash to principal reduces your liquid savings.

Illustrative example

If your monthly payment is $1,200, a biweekly plan pays $600 every two weeks = 26 half‑payments = $15,600/year vs $14,400 with monthly payments. That extra $1,200 goes straight to principal each year. The exact interest savings depend on loan size, rate, and remaining term; as an illustration, a $250,000 30‑year fixed at 3.5% could see several years shaved off the term and interest savings that may be in the low‑to‑tens of thousands range — results vary, so run a calculator for your loan.

Practical steps to implement

  1. Ask your lender or loan servicer if they accept biweekly payments and how they apply extra money (confirm it posts toward principal).
  2. Avoid third‑party vendors that charge ongoing fees — you can usually accomplish the same result by making one extra monthly payment per year or setting up 26 autopay transfers.
  3. Get written confirmation from your servicer about payment application and any fees.
  4. Automate payments to reduce missed payment risk, and check your statements for correct posting.

Alternatives to a formal biweekly program

  • Make one extra full monthly payment each year (same effect).
  • Round up monthly payments or add a fixed extra amount to principal.
  • Refinance to a shorter term if lower rates and closing costs make financial sense (see our guide on how closing costs change when you refinance: How Closing Costs Change When You Refinance a Mortgage).

Tax and accounting notes

There’s no special tax benefit for biweekly payments; you simply pay less total interest over time. Lower interest paid can reduce deductible mortgage interest — see our primer on mortgage interest deductibility and consult IRS Publication 936 or a tax professional for specifics (IRS Publication 936).

Quick FAQs

  • Can I switch mid‑mortgage? Yes, if your servicer allows it — always confirm how payments will be applied.
  • Will biweekly payments change my escrow or insurance schedules? Generally no, but confirm with your servicer.
  • Are biweekly companies necessary? No — you can replicate the effect by making an extra payment each year or automating splits from your bank.

Professional takeaway

In my 15 years working with borrowers, the safest, lowest‑cost approach is to ask your servicer to accept extra principal payments or to make an extra payment yourself. True biweekly schedules can produce meaningful savings, but the benefit is erased if payments aren’t applied promptly or if a vendor charges fees. For borrowers with stable cash flow and a long remaining term, biweekly or extra‑principal strategies are often an effective way to shorten a mortgage and reduce interest costs.

Further reading

Disclaimer

This article is educational only and does not constitute financial, legal, or tax advice. Contact your lender and a licensed tax or financial professional before changing payment strategies.