Retire the mortgage the day you do.
A defined-benefit career gives you something most borrowers never get: a retirement date you can plan around, years out. That makes “what payment kills the mortgage the same day the pension starts?” an exact question — here’s the exact answer, and the interest it never pays.
Your numbers
The date you already know — 25-and-out, factor-85, whatever your plan says.
Payment on your current schedule: $3,231.56/mo.
The pension-day payment
$4,004.18
$772.62 more than today’s payment — and the mortgage ends the day the pension begins.
Interest that never gets paid
$202,357
Two honest notes. Prepayment privileges cap how much extra a contract allows penalty-free — before committing to a bigger payment, have us check yours (a renewal is often the clean moment to reset the amortization instead). And if the pension-day payment is more than the budget carries, the pay-it-faster tool shows what any smaller extra still achieves — every dollar shortens the line.
The rules this runs on — and how the math was verified
Canadian semi-annual compounding; the pension-day payment is the exact annuity that retires today’s balance over the months until your pension date. If your schedule already ends first, the tool says so instead of inventing a lower payment.
The engine passes 29 automated checks — closed forms re-derived independently, both schedules simulated month-by-month to under a cent, a hand-computed zero-rate case, and an earlier pension date must always need more payment and save more interest. Arithmetic last verified August 4, 2026. It’s an illustration, not a quote or a commitment to lend.
One of the Mortgage Guru family’s 50+ free calculators — counted honestly. Planning the transition itself? The pension question is answered in the FAQ.