The Straight Switch: Changing Lenders at Renewal Without the Stress Test
Skipping the stress test on a straight switch is worth $494.28 a month of qualifying payment on a $450,000 balance, and a rate gap of just 7.1 basis points pays for the most expensive kind of move.
Thursday, 5 November 2026 — Ottawa. If your mortgage renews in the next six months, the most valuable rule in Canadian mortgage lending is one your current lender has no reason to explain: the straight switch. Move the mortgage to a new lender at renewal without increasing the loan or stretching the amortization, and federal rules let you skip the stress test. On a $450,000 balance with 20 years left, that exemption is worth $494.28 a month of qualifying payment, roughly $15,200 a year of gross income you no longer have to prove. The Bank of Canada's policy rate is 2.50% after the 28 October increase and prime is 4.70%; the lowest advertised insured five-year fixed is 4.44% as at 4 November. A straight switch is how you reach that number instead of signing the letter in front of you.
The bottom line: the gap that makes a move worth it is far smaller than borrowers assume. On that same $450,000, a 25-basis-point difference between your renewal offer and the open market costs $5,268 over one five-year term. The most expensive kind of move costs $1,000 to $1,500 in legal work, which a gap of only 7.1 basis points recovers. If your offer is a tenth of a point off market, switching pays. The catch: the exemption is narrow, and three ordinary requests — more money, a longer amortization, a different property — destroy it.
What counts as a straight switch, and what quietly disqualifies you
A straight switch moves your existing mortgage to a new lender at renewal on substantially the same terms. The Department of Finance set the conditions when it amended the mortgage insurance rules effective 16 December 2024: the mortgage must have been originated at a federally regulated financial institution and already assessed against the minimum qualifying rate; you must renew with a different lender; you must keep the existing contractual amortization schedule; and the loan must be low-ratio, no more than 80% loan-to-value. All other eligibility criteria for government-guaranteed mortgage insurance still apply.
The unpaid principal balance may rise by up to $3,000 to cover transaction costs such as penalties or fees. Equity take-out is not permitted. That is the whole perimeter, and where most borrowers fall out of it without realising. Asking for $20,000 of built equity makes the file a refinance, not a straight switch — stress-tested, capped at 80% loan-to-value and priced off the uninsured board.
The amortization condition catches people, because the request sounds harmless. Re-extending 20 remaining years back to 25 drops the payment on $450,000 at 4.44% by $346.92 a month, to $2,475.64 — and leaves you owing $23,235 more after five years. It also breaks straight switch treatment outright, because keeping the existing contractual amortization is a condition. You can have the lower payment or the exemption, not both.
Two rules created the exemption. OSFI dropped the required minimum qualifying rate on uninsured straight switches between federally regulated lenders on 21 November 2024, and the insurance-rule change followed on 16 December 2024 for low-ratio insured mortgages. Insured borrowers already moved without requalifying; 2024 closed the gap for everyone else.
The exemption is worth about $15,200 of income you do not have to prove
The minimum qualifying rate is the greater of your contract rate plus two points or 5.25%. At a 4.44% contract rate that is 6.44%. On $450,000 over 20 years the real payment is $2,822.56, while the qualifying payment is $3,316.84. The difference of $494.28 a month, run through a 39% gross debt service limit, is roughly $15,200 a year of additional gross income. At a tighter 32% ratio it is about $18,500.
For a borrower whose income has not moved since 2021 — or has fallen, in a year that shed 68,000 jobs in September with unemployment at 6.5% — that is often the difference between options and none. Our explainer on the mortgage stress test in 2026 covers how the ratios are built.
One caveat, and it matters. OSFI removed the requirement; it did not forbid lenders from testing you anyway. Its backgrounder is explicit that lenders must still apply Guideline B-20's underwriting principles and set qualifying rates to their own risk appetite. BMO adopted the change in November 2024 then reversed itself the following month, telling brokers that "files will continue to be reviewed using OSFI's stress test." A straight switch removes the regulatory obstacle, not every lender's underwriting. Ask before you apply.
The rate board has flipped since late October
Two things moved in late October. The Bank of Canada raised the policy rate 25 basis points to 2.50% on 28 October, taking prime to 4.70%, and the fixed-rate board inverted. The three-year fixed sat five basis points below the five-year in late October; it now sits four above. Shorter money stopped being the cheap option.
A straight switch is what gets you onto this board instead of your lender's renewal letter. These are lowest-advertised and lender-posted figures, not quotes, and what you qualify for depends on your file. Payments are on a $450,000 balance over 20 remaining years.
| Product | Rate | Monthly payment | Source and date |
|---|---|---|---|
| 5-year fixed, insured | 4.44% | $2,822.56 | Lowest advertised, Ratehub, 4 Nov |
| 3-year fixed, insured | 4.48% | $2,832.07 | Lowest advertised, Ratehub, 3 Nov |
| 5-year fixed, insured | 4.59% | $2,858.28 | nesto own posted, 3 Nov |
| 5-year variable, insured | 3.66% | $2,640.54 | nesto own posted, 3 Nov (prime less 1.04%) |
The variable sits 78 basis points below the lowest five-year fixed, worth $182 a month here — but it tracks prime, which just rose. Fixed rates follow the five-year Government of Canada bond yield, at 3.49% on 3 November, down from 3.58% on 29 October. A 4.44% five-year fixed is about 95 basis points over that yield, a normal lender spread. Commentary going into 9 December leans toward a hold, but that is a market expectation that can change, not a forecast.
Your original mortgage's insurance status decides which column you are quoted from. If it was insured, that insurance follows the mortgage, so a straight switch keeps it and you pay no second premium. If it was uninsured, the new lender may arrange portfolio insurance under the December 2024 rules — which is why some uninsured renewers are quoted better than they expect.
The $3,000 rule, and what it is actually for
The $3,000 a straight switch may add to the balance covers the cost of moving, not spending money. Rolling the full $3,000 into a $450,000 mortgage at 4.44% over 20 years raises the payment $18.82 a month and leaves $2,476 more owing at term end. Rolling in $1,500 costs $9.41.
Cheap relative to what the move saves, but capped. If your costs exceed $3,000 — a large prepayment penalty from breaking mid-term, say — you cannot roll the excess in and keep straight switch treatment. That is the structural reason to move at renewal: there is no penalty then, so costs stay inside the ceiling. If maturity is still months out, a rate hold bridges the gap.
How small a rate gap pays for a straight switch
Most straight switch costs are absorbed by the lender competing for your business. Discharge fees of $200 to $400 are often covered, appraisals usually waived or lender-paid, title insurance typically included. The cost genuinely yours is legal and registration work, roughly $1,000 to $1,500 where re-registration is required — typical ranges, not quotes, so ask for yours in writing. Against the arithmetic of a rate gap, the bar is very low.
| Rate gap vs 4.44% | Monthly difference | Extra interest over five years | Extra owing at renewal |
|---|---|---|---|
| 10 bps | $23.79 | $2,106 | $678 |
| 25 bps | $59.66 | $5,268 | $1,688 |
| 50 bps | $119.94 | $10,548 | $3,352 |
| 75 bps | $180.84 | $15,841 | $4,990 |
| 100 bps | $242.35 | $21,145 | $6,604 |
The breakeven: a 2.4-basis-point gap recovers $500 of cost, 7.1 basis points recovers $1,500, and 14.2 basis points recovers the full $3,000. The measure is five-year total cost — sixty payments plus the balance owing at month 60 — on $450,000 with 20 years remaining, at Canadian semi-annual compounding. Balance and amortization are stated assumptions, so scale it: at $600,000 a 25-basis-point gap costs $7,024, at $300,000 $3,512. Our piece on switching or staying at renewal works the same comparison from the offer side.
The collateral charge is the one real obstacle
If your mortgage is registered as a collateral charge rather than a standard charge, it cannot be assigned to a new lender. It must be discharged and re-registered, which is where the $1,000 to $1,500 of legal cost comes from even at renewal. TD mortgages, Scotiabank's STEP and BMO's ReadiLine are commonly registered this way, and many borrowers do not know which they have. We price the full cost of leaving one in our guide to the collateral charge mortgage.
This does not block a straight switch. It makes it cost something, and some new lenders cover re-registration, so ask. Check your registration type before you assume the move is free — and before you accept a renewal offer on the argument that switching is too much trouble.
What to do, in order
- Find your maturity date and the exact balance on it — both are on your renewal letter or online account.
- Confirm whether your mortgage is insured, insurable or uninsured, and whether the charge is standard or collateral.
- Get a rate hold at 120 days out. It costs nothing and caps your downside while you shop.
- Price the market against your renewal offer and convert the gap to dollars with the table above, not a feeling about basis points.
- Ask every lender you approach, in writing, whether they apply their own stress test to a straight switch. The answers differ.
- Keep the loan amount and amortization exactly as they are. Equity or a longer amortization is priced separately as a refinance, with the stress test.
- Ask who pays legal, appraisal, discharge and title costs, and whether anything over $3,000 pushes you outside straight switch treatment.
- Start 90 to 120 days before maturity. A straight switch takes two to four weeks of paperwork, and running out of time is how borrowers accept the offer they meant to beat.
Common questions
Does a straight switch hurt my credit score?
A new lender will pull your credit, and a single mortgage inquiry has a small, short-lived effect. Shopping through one broker means one pull rather than several. Against $5,268 on a 25-basis-point gap, credit impact is not the deciding factor.
Can I take equity out and still skip the stress test?
No. Equity take-out is explicitly excluded. The only permitted increase is up to $3,000 for transaction costs. Any borrowing beyond that makes the file a refinance — stress-tested and limited to 80% loan-to-value.
Does the 28 October rate increase change whether a straight switch is worth it?
Not materially. The hike took prime to 4.70%, raising variable payments at once, but straight switch arithmetic turns on the gap between your renewal offer and the open market, not the level of rates. A 25-basis-point gap costs $5,268 over five years whether the market is at 4.44% or 5.44%. What it does change is the case for a rate hold before 9 December, when the Bank next decides.
A straight switch is not a loophole. It is the mechanism Canadian regulators built, deliberately, so renewing borrowers could shop without being trapped by a qualifying rule written for new purchases. It is worth two weeks of paperwork.
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