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Payment frequency is how often a borrower makes mortgage payments — monthly, semi-monthly, bi-weekly, or weekly — and whether that schedule is “regular” (simply the monthly amount split up) or “accelerated” (calculated so the borrower makes roughly one extra monthly payment every year, shortening the amortization).
Regular bi-weekly payments simply take the monthly amount, multiply by 12, and divide by 26 — the borrower still pays the same total each year, just spread across more, smaller payments. There’s no acceleration and no impact on amortization.
Accelerated bi-weekly is calculated differently: it takes half the monthly payment and charges it every two weeks. Because a year has 26 two-week periods (not 24), that works out to the equivalent of 13 monthly payments a year instead of 12 — one extra payment, applied straight to principal, every single year.
No renegotiation required: switching payment frequency, including to an accelerated schedule, is typically available at any point during the term without breaking the mortgage contract.
A different lever than lump sums: accelerated frequency is a separate mechanism from lump-sum prepayment privileges, though both shorten the effective amortization.
Sometimes it's just cash-flow matching: some borrowers choose bi-weekly or weekly payments to match pay-cheque timing rather than to accelerate payoff — only the “accelerated” version actually shortens amortization.
Labels aren't standardized: terms like “rapid,” “accelerated,” and plain “bi-weekly” are used inconsistently across lenders — confirm the actual payment math, not just the label.
A borrower with a $2,000 monthly payment switches to accelerated bi-weekly:
$2,000 × 12 = $24,000 paid per year on the regular monthly schedule; $1,000 × 26 = $26,000 on accelerated bi-weekly. That extra $2,000 goes straight to principal, shortening the effective amortization without changing the interest rate.
Definitions reflect Canadian federal and provincial rules as of the “Updated” date above. Not advice for any specific file.
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