How to shop a Canadian mortgage renewal in 2026—and when switching lenders saves shelter cost

Borrowers accept the first renewal letter because it arrives on letterhead. That letter is an opening bid on your largest monthly bill. Shopping a renewal is shelter-cost reduction, not a personal-finance lecture on asset allocation. As of 21 November 2024, OSFI no longer prescribes the minimum qualifying rate for an uninsured straight switch at renewal between federally regulated institutions when you do not increase the loan amount or remaining amortisation. That is a big deal for people who were trapped by the stress test. It is not a magic wand for insured mortgages or cash-out refis.

Start 120 days out: calendar and document checklist

Gather: remaining balance, remaining amortisation, whether the loan is insured, prepayment history, portability, and any collateral charge vs standard charge (this affects how easy a switch is — ask your institution, do not guess from a forum). Write the maturity date in three calendars.

Get your lender’s offer in writing before you negotiate

Call or inbox: “Please send my renewal offer including rate, term, cashback, fees, and prepayment privileges.” Verbal “we’ll match” is not a document. You cannot shop a shrug. If they delay past 90 days, keep asking; your calendar does not care about their campaign season.

Straight switches and stress-test changes for uninsured mortgages (high-level, date-stamped)

OSFI’s 21 Nov 2024 announcement: it will no longer prescribe the MQR it expects FRFIs to apply when uninsured mortgage borrowers switch to a new institution at renewal, provided it is a stand-alone uninsured mortgage, FRFI to FRFI, with no increase in remaining contractual amortisation or loan amount. OSFI still expects Guideline B-20 sound underwriting. The ordinary MQR for new uninsured originations remains a greater-of contract+2% or 5.25% style floor in OSFI’s public MQR material — that is for originations, not the straight-switch exemption. Insured (high-ratio) rules sit under a different federal housing-insurance world. Extra money, a HELOC add, or resetting amortisation is not a straight switch.

Do not tell yourself you “don’t need to qualify.” Lenders can still say no. This paragraph is a date-stamped map, not an approval.

Compare rate, cashback, fees, and prepayment privileges—not rate alone

Broker vs bank vs credit union shopping paths

Bank: incumbency, payroll, maybe a bundle. Broker: multiple lenders, still not every credit union, still a licensed professional you should treat as such — we are not introducing one. Credit union: membership, sometimes slower, sometimes sharper on a remaining amort they like. Run all three if the file is large. Identical remaining amort and balance, or you are not comparing straight switches.

Worked monthly payment savings examples

Labelled sketch, not a quote: $420,000 remaining, 22 years left. A drop from 5.2% to 4.4% on a standard Canadian mortgage calculator is hundreds of dollars a month — enough to matter as rent-equivalent shelter cost. Subtract any switch fees amortised over the new term. If cashback is $3,000 with a 3-year clawback, divide by 36 and put it on the scorecard as a line, not a gift.

When staying put still wins

• The gap after fees is a rounding error and you use a 20% prepayment every bonus year.
• A switch would be insured, cash-out, or amort-extending — you might not like the new underwriting.
• You are moving in 11 months and portability on the current product is actually usable.
• Condo fees are about to jump $180 (see reserve-fund flags) — fix that stack first.

Write the scorecard once. The expensive mistake is treating the letter as a law of physics.