Bi-weekly mortgage payments are one of the simplest ways to pay off your home faster and save tens of thousands in interest. Instead of 12 monthly payments, you make 26 half-payments — effectively adding one extra payment per year.
How Bi-Weekly Payments Work
| Payment Schedule | Payments Per Year | Equivalent Monthly Payments |
|---|---|---|
| Monthly | 12 | 12 |
| Bi-weekly | 26 half-payments | 13 |
| Extra payment | 1 per year |
The extra payment goes entirely toward principal, which reduces your balance faster and saves interest.
Savings by Loan Amount (6.5% Rate, 30-Year Term)
| Loan Amount | Monthly Payment | Bi-Weekly Payment | Interest Saved | Years Saved |
|---|---|---|---|---|
| $200,000 | $1,264 | $632 | $38,400 | 4 years 10 months |
| $250,000 | $1,580 | $790 | $48,000 | 4 years 10 months |
| $300,000 | $1,896 | $948 | $57,600 | 4 years 10 months |
| $350,000 | $2,212 | $1,106 | $67,200 | 4 years 10 months |
| $400,000 | $2,528 | $1,264 | $76,800 | 4 years 10 months |
| $450,000 | $2,844 | $1,422 | $86,400 | 4 years 10 months |
| $500,000 | $3,160 | $1,580 | $96,000 | 4 years 10 months |
Savings by Interest Rate ($350,000 Loan, 30-Year Term)
| Interest Rate | Monthly Payment | Total Interest (Monthly) | Total Interest (Bi-Weekly) | Savings | Years Saved |
|---|---|---|---|---|---|
| 5.0% | $1,879 | $326,440 | $275,800 | $50,640 | 4 years 4 months |
| 5.5% | $1,987 | $365,340 | $308,000 | $57,340 | 4 years 7 months |
| 6.0% | $2,098 | $405,400 | $341,200 | $64,200 | 4 years 9 months |
| 6.5% | $2,212 | $446,580 | $375,400 | $71,180 | 4 years 11 months |
| 7.0% | $2,329 | $488,860 | $410,600 | $78,260 | 5 years 1 month |
| 7.5% | $2,447 | $532,200 | $446,800 | $85,400 | 5 years 3 months |
Higher interest rates mean bigger savings from bi-weekly payments.
Monthly vs Bi-Weekly: Full Amortization
For a $350,000 mortgage at 6.5%:
| Year | Balance (Monthly) | Balance (Bi-Weekly) | Difference |
|---|---|---|---|
| 1 | $345,800 | $344,500 | $1,300 |
| 5 | $326,800 | $318,400 | $8,400 |
| 10 | $293,400 | $273,500 | $19,900 |
| 15 | $245,200 | $210,800 | $34,400 |
| 20 | $176,400 | $124,800 | $51,600 |
| 25 | $77,800 | $6,800 | $71,000 |
| 25 yr 2 mo | $71,400 | $0 (Paid off!) | — |
| 30 | $0 | — | — |
The bi-weekly schedule pays off the mortgage nearly 5 years early.
Bi-Weekly vs Other Extra Payment Strategies
| Strategy | Extra Principal/Year | Interest Saved ($350K, 6.5%) | Time Saved |
|---|---|---|---|
| Standard monthly | $0 | $0 | 0 |
| Bi-weekly | ~$2,212 (1 extra payment) | $67,200 | ~5 years |
| Extra $100/month | $1,200 | $42,000 | 3 years 6 months |
| Extra $200/month | $2,400 | $74,000 | 5 years 6 months |
| Extra $500/month | $6,000 | $137,000 | 10 years 2 months |
| One extra payment/year (lump sum) | $2,212 | $67,200 | ~5 years |
| Round up to nearest $100 | ~$1,056/year | $36,000 | 3 years |
DIY Bi-Weekly: No Special Program Needed
Many lenders charge fees for bi-weekly programs. You can achieve the same result for free:
| Method | How It Works |
|---|---|
| DIY extra payment | Divide your monthly payment by 12. Add that amount as extra principal each month |
| Annual lump sum | Make one extra payment per year (any time) |
| Round up | Pay slightly more each month and designate it as principal |
DIY Calculation
| Monthly Payment | ÷ 12 | Extra Per Month | Same as Bi-Weekly? |
|---|---|---|---|
| $1,264 | ÷ 12 | $105 | Yes (approximately) |
| $1,580 | ÷ 12 | $132 | Yes (approximately) |
| $1,896 | ÷ 12 | $158 | Yes (approximately) |
| $2,212 | ÷ 12 | $184 | Yes (approximately) |
| $2,528 | ÷ 12 | $211 | Yes (approximately) |
Things to Watch Out For
| Issue | Detail |
|---|---|
| Third-party programs | Some charge $300-$500 setup + monthly fees — not worth it |
| Pseudo bi-weekly | Some programs hold payments and pay monthly — no real benefit |
| Prepayment penalties | Check your loan terms — some mortgages charge for extra payments |
| Auto-debit alignment | Make sure bi-weekly debits align with your paycheck schedule |
| Escrow account | Property taxes and insurance may complicate bi-weekly setup |
Should You Make Bi-Weekly Payments?
| Yes, If… | No, If… |
|---|---|
| You get paid bi-weekly (easy budgeting) | You have high-interest debt (>7%) to pay off first |
| You want an automatic “forced saving” | You don’t have 3-6 months emergency fund |
| Your mortgage rate is above 4% | Your mortgage rate is very low (under 4%) and you’d earn more investing |
| You want to be mortgage-free faster | You have no retirement savings |
| Your lender allows it without fees | Your lender charges fees for the program |
Bi-Weekly vs Investing the Difference
If your mortgage rate is 6.5%, is it better to make bi-weekly payments or invest that extra $184/month?
| Strategy | After 30 Years |
|---|---|
| Bi-weekly mortgage | Mortgage paid off in ~25 years. Then invest $2,212/month for 5 years |
| Invest $184/month (7% return) | $208,000 portfolio, mortgage paid off in 30 years |
| Winner | Investing wins if returns > mortgage rate; bi-weekly wins for guaranteed savings |
The bi-weekly approach gives a guaranteed return equal to your mortgage rate. Investing offers potentially higher but uncertain returns.
Key Takeaways
- Bi-weekly payments save ~$67,000 in interest on a $350K mortgage at 6.5%
- You pay off your mortgage ~5 years early — 25 years instead of 30
- No special program needed — add 1/12 of your monthly payment as extra principal
- Higher interest rates = bigger savings from bi-weekly payments
- Avoid third-party bi-weekly programs that charge setup and monthly fees
- Pay off high-interest debt first before making extra mortgage payments
- Check for prepayment penalties before starting extra payments
- Bi-weekly aligns well with bi-weekly paychecks — easier budgeting
Related Calculators & Guides
- Mortgage Payment Calculator — Calculate your standard monthly mortgage payment
- Amortization Calculator — See your full payment schedule year by year
- Mortgage Affordability Calculator — Find out how much home you can afford
- Refinancing Guide — When refinancing makes more sense than extra payments
- 15-Year vs 30-Year Mortgage — Compare shorter terms vs bi-weekly on a 30-year
- Average Mortgage Payment — Compare your payment to national averages