Accelerated bi-weekly mortgage payments are one of the simplest and most powerful strategies available to Canadian homeowners. By making half your monthly payment every two weeks instead of once a month, you end up making the equivalent of one extra full monthly payment per year — without it feeling like a dramatic change to your budget.
Typical amortization reduction on a 25-year $500,000 mortgage at 4.59%
Regular Bi-Weekly vs. Accelerated Bi-Weekly
These two options sound similar but are meaningfully different:
| Feature | Regular Bi-Weekly | Accelerated Bi-Weekly |
|---|---|---|
| Payments per year | 26 | 26 |
| Payment calculation | Annual payment ÷ 26 | Monthly payment ÷ 2 |
| Total annual payment | Same as monthly × 12 | Monthly × 13 (one extra payment) |
| Amortization impact | None — same as monthly | Significant — 2-3 years shorter |
| Interest savings | Minor (timing only) | Substantial — often $20,000–$40,000+ |
The key insight: there are 26 bi-weekly periods in a year but only 12 months. If your monthly payment is $2,700, your accelerated bi-weekly payment is $1,350 × 26 = $35,100/year — vs. $2,700 × 12 = $32,400/year. That extra $2,700 goes directly to principal every year.
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Why Does It Work?
The math is straightforward: you're making 13 monthly payments' worth of contributions each year instead of 12. That one extra payment goes entirely to principal reduction every year. Over 25 years, that's 25 extra payments — equivalent to about 2 full years of regular payments applied directly to principal. Combined with the compounding interest savings on the reduced balance, the total impact on amortization is typically 2-3 years.
How to Switch to Accelerated Bi-Weekly
Most Canadian mortgage lenders allow you to change your payment frequency at any time, often at no cost:
- Call your lender or log into your online mortgage account
- Request a payment frequency change to "accelerated bi-weekly"
- Confirm your new payment amount and first payment date
- Verify the change takes effect on your next statement
Some lenders only allow frequency changes at renewal. If your current lender restricts mid-term changes, note it for when your term renews.
Accelerated Weekly: Even Faster
Accelerated weekly payments (monthly payment ÷ 4, paid 52 times per year) produce slightly faster amortization than accelerated bi-weekly — typically saving an additional 3-6 months. The difference is modest, and accelerated bi-weekly aligns better with most Canadians' pay cycles (bi-weekly paycheques).
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Get KOHO Free — Use Code 45ET55JSYAFrequently Asked Questions
It's typically a simple administrative request — not a mortgage change requiring approval. Most lenders handle it by phone or through online banking within a few days.
No. Switching payment frequency is a standard mortgage feature — it does not constitute a prepayment that would trigger penalties or consume your annual prepayment allowance.
It can work, but requires budgeting for two payments per month in most months (and three in the two months with three bi-weekly periods). Some borrowers find monthly payments easier to manage on a monthly salary.
Absolutely — and this combination is one of the most effective mortgage paydown strategies available. Together, they can shave 5+ years off a 25-year amortization depending on the amounts.