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What Banks Hide

The Biweekly Payment Trick Banks Hope You Never Try

Biweekly Mortgage Payments Explained

You’ve probably heard that switching to biweekly mortgage payments can save you thousands. It can - but most people don’t understand exactly why or how much.

How Biweekly Works

Instead of making 12 monthly payments per year, you make 26 half-payments (one every two weeks). Since there are 52 weeks in a year:

  • Monthly: 12 payments/year
  • Biweekly: 26 half-payments/year = 13 full payments/year

That’s one extra full payment per year, automatically.

The Real Numbers

On a $250,000 mortgage at 6.5% with a $1,580/month payment:

  • Standard 30-year: You pay $318,861 in interest over 360 months
  • Biweekly: You pay about $265,000 in interest and pay off in ~305 months

That’s roughly $54,000 saved and 4.5 years early - just from one extra payment a year.

Why It Works So Well

The math is straightforward: you’re making an extra payment each year that goes entirely to principal. But the compound effect is powerful because:

  1. Less principal = less interest each month. Every extra dollar reduces future interest charges.
  2. The effect compounds. Lower interest means more of each regular payment goes to principal too.
  3. It’s painless. Each payment is half your normal amount, so individual checks feel smaller even though you pay more annually.

The Catch: Watch Out for Servicer Scams

Some mortgage servicers charge a fee to “set up” biweekly payments. Don’t pay it. Here’s what often happens:

  • They collect your biweekly payment but hold it until the end of the month
  • They charge $300-500 for “setup” plus a per-payment fee
  • You get zero benefit beyond what you could do yourself

The free alternative: Just add 1/12 of your monthly payment as extra principal each month. On a $1,580 payment, that’s roughly $132/month extra. The effect is nearly identical to biweekly, and you control it directly.

Biweekly vs. Flat Extra Payment

Biweekly is essentially an extra ~8.3% on top of your payment each month. For many people, a flat extra payment (say, $200 or $500/month) saves even more.

Use our Mortgage Early Payoff Calculator to compare biweekly against flat extra payment amounts and see exactly which approach saves the most for your situation.

When Biweekly Doesn’t Make Sense

  • If you have high-interest debt (credit cards, personal loans) - pay those first
  • If you don’t have an emergency fund - build that first
  • If your mortgage rate is very low (under 4%) - you may earn more by investing the extra instead

Bottom Line

Biweekly payments are a great “set and forget” strategy for paying off your mortgage early. The key insight: you’re simply making one extra payment per year, and that alone can save tens of thousands of dollars.

Related tools

Mortgage Early Payoff →