Since late 2024, switching lenders at renewal (a "straight switch": same loan amount, same amortization) no longer requires requalifying under the mortgage stress test, for both insured and uninsured mortgages. There's no prepayment penalty for switching at renewal, though legal, appraisal, and discharge costs can still apply. Shopping a renewal, or simply using a competing offer to negotiate with your current lender, costs nothing but time.
A mortgage renewal letter looks like paperwork — a form to sign so the account keeps running. Treated that way, it quietly becomes the single most expensive rubber stamp most homeowners sign, because the rate on it is whatever the current lender chose to offer, not necessarily the best rate available on that file. Nothing about a renewal requires comparing it to anything else first.
That's worth saying plainly, because the renewal letter itself never says it. It arrives looking final, addressed, with a signature line — and most people sign it exactly as presented, the same way they'd sign a form at a doctor's office, without treating it as a negotiation or a market decision.
The Financial Consumer Agency of Canada states this directly: "You don't have to renew your mortgage with the same lender." At the end of a term, the contract has run its course — there is no obligation, and no penalty, to move the mortgage to a different lender entirely, rather than simply accepting whatever offer shows up in the mail.
This is different from breaking a mortgage mid-term, which does usually carry a prepayment penalty. Renewal is the one point in the life of a mortgage where the slate is genuinely clean.
For years, moving a mortgage to a new lender at renewal meant requalifying under the mortgage stress test at the new lender's qualifying rate — often a meaningfully higher number than the actual rate being offered, and enough on its own to make some borrowers stay put rather than risk not qualifying somewhere new. That changed. The Department of Finance confirmed in 2023 that insured mortgages don't need to pass the stress test again on a straight switch at renewal, and OSFI, the federal banking regulator, extended the same treatment to uninsured mortgages, effective November 21, 2024.
In plain terms: switching lenders at renewal, on its own, no longer forces a borrower to prove they could still qualify at a stress-tested rate. That's a real, structural change in how easy it is to shop a renewal — not just marketing language from a lender trying to win the file.
OSFI's exemption is specific, and the specifics matter. It applies to transferring an existing stand-alone uninsured mortgage between federally regulated institutions with no increase in the remaining amortization period or the loan amount. The unpaid balance can move up by as much as $3,000 to cover transaction costs like penalties or fees — but equity take-out isn't permitted under this exemption. Step outside those lines — borrow more, extend the amortization, or pull equity out — and it's treated as a refinance, which still requires full requalification.
It's also worth being precise about scope: this specific exemption governs federally regulated institutions — the banks and monoline lenders most renewal shopping happens between. It doesn't automatically extend the same way to every lender type on the market. Comparing an offer from a bank against what a B-Lender or private lender would offer for the same situation is a different kind of comparison, with its own qualifying rules — which is exactly the kind of thing a broker is positioned to sort out across tiers rather than a single lender.
Worth separating out, since the terms get used loosely: switching lenders at renewal moves the existing mortgage, at its existing balance and amortization, to a new lender — nothing about the loan itself changes beyond who holds it and at what rate. Refinancing changes the terms of that same mortgage, often to borrow more. A second mortgage is a separate loan entirely, registered behind the first, which doesn't touch the first mortgage or its rate at all. A straight switch is the narrowest, simplest, and least disruptive of the three — which is part of why it's the one that now moves without a stress test.
No stress test and no prepayment penalty doesn't mean no cost at all. A new lender will typically want a current appraisal, and there are legal and discharge fees involved in moving the mortgage off title from the old lender and registering it under the new one. Many lenders offer a cash-back incentive specifically to attract switches, which can offset some or all of this — worth asking about directly rather than assuming it's standard, since it varies lender to lender.
Switching isn't the only lever. FCAC's own guidance is direct on this too: homeowners can "tell your lender about offers you received from other financial institutions or mortgage brokers" — and may be asked to show proof of them. A real competing offer in hand is leverage, even with a lender who'd rather not lose the file. Sometimes the cheapest outcome is staying put, at a rate the current lender only offered once a better one was on the table.
FCAC's guidance: start a few months before the end of your term, rather than waiting for the renewal letter to arrive and treating that as the starting gun. The renewal offer that shows up in the mail is usually the lender's opening position, not its best one — and comparing it against anything takes time a borrower doesn't have if they only start looking once the letter is already sitting on the counter.
To make this concrete: a homeowner with a $400,000 balance remaining, 22 years left on the amortization, renewing off a 6.24% rate. A competing offer comes in at 4.99% on the same balance and amortization — a straight switch, no change to the loan amount. The monthly payment drops by a meaningful amount; run against the actual numbers, that gap is often enough to clear a switch fee within the first year or two, after which it's pure monthly savings for the rest of the term. Our Switch & Save calculator runs this exact comparison against your own numbers, including how long it takes any switching cost to pay for itself.
A straight switch still involves underwriting — OSFI's exemption removes the stress-test requirement, not the lender's own review of the file. If income, credit, or the property itself has changed since the mortgage was first placed, a new lender can still decline where the current one might simply renew without a second look. That's not a dead end; it's the same situation as any other bank decline, and the same broader market of banks, B-Lenders, and private lenders applies at renewal as it does at purchase.
Don't sign the first offer the day it arrives. Start looking a few months out, get at least one real competing number, and use it either to switch or to negotiate with the lender you already have — both are legitimate, and which one wins depends entirely on the actual numbers, not on loyalty to whoever's been holding the mortgage so far. The rules now make the straight-switch path easier than it's been in years; the only real cost left is the time it takes to ask.
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