Biweekly vs Monthly Mortgage Comparison
How Accelerated Biweekly Payments Work
The power of accelerated biweekly payments comes from a simple mathematical trick. Your monthly mortgage payment is divided in half, and you make that half-payment every two weeks. Over a year, that produces 26 payments (52 weeks ÷ 2). Multiply 26 biweekly payments × the payment amount: you end up paying the equivalent of 13 monthly payments per year instead of 12.
That one extra monthly payment per year is applied entirely to principal — dramatically accelerating your amortization. No lifestyle change, no significant budget impact — just paying slightly more frequently.
Regular Biweekly vs Accelerated Biweekly
These two options are often confused:
- Regular biweekly: Your annual amount is divided by 26. You pay slightly less per period than accelerated biweekly. The annual total matches monthly payments. Minimal interest savings.
- Accelerated biweekly: Your monthly payment is divided by 2. You pay slightly more per period, making the equivalent of 13 months of payments per year. This is the option that saves years and thousands of dollars.
Always choose accelerated biweekly, not just regular biweekly, to get the full savings benefit.
Real Example: $500,000 Mortgage at 4.89%
Here's what the numbers look like on a typical Canadian mortgage:
- Monthly payment: $2,869.17/month
- Total interest (25 years monthly): $360,751
- Accelerated biweekly payment: $1,434.59/period
- Total interest (accelerated biweekly): $305,124
- Interest saved: $55,627
- Years saved: Approximately 2.6 years
Combining Biweekly with Lump Sum Payments
Accelerated biweekly payments are even more powerful when combined with annual lump sum prepayments. Most Canadian mortgages allow you to prepay 15–20% of the original principal per year without penalty. Making even a $5,000–$100 annual lump sum prepayment on top of accelerated biweekly payments can reduce your mortgage by 5–8 years compared to standard monthly payments.
Use our Lump Sum Mortgage Payment Calculator to see the combined impact.
Does Payment Frequency Matter as Much as Rate?
Both matter, but reducing your interest rate has a bigger impact per percentage point than payment frequency. However:
- Changing payment frequency costs nothing and requires no new approval
- Reducing your rate by 0.25% saves roughly similar amounts to accelerated biweekly on a 25-year mortgage
- Doing both is the optimal strategy
Common Questions About Biweekly Mortgages
Does every lender offer biweekly payments?
All major Canadian lenders (Big 5 banks, credit unions, most monoline lenders) offer accelerated biweekly as a standard option. Some smaller lenders may only offer monthly. Always confirm available payment frequencies when comparing lenders.
Can I switch from monthly to biweekly mid-term?
Some lenders allow this with no charge; others charge an administration fee ($100–$300). Most lenders allow a payment frequency change at renewal with no cost. Check your mortgage agreement or contact your lender to understand your options and any associated costs.
Does accelerated weekly save more than biweekly?
Yes, but marginally. Accelerated weekly payments (52 payments/year, each = monthly/4) save slightly more than biweekly due to more frequent principal reduction. The difference is typically $1,000–$3,000 over 25 years — meaningful but not dramatic compared to the biweekly vs monthly difference.
Save the Interest Difference with KOHO
Accelerated biweekly payments reduce what you pay the bank. KOHO's savings account earns up to 5% on the extra dollars you keep. Two-part strategy: pay the mortgage faster AND grow your savings simultaneously.
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