Variable vs Fixed Rate Mortgages: A BC Realtor's Advisory Guide (2026)
Every BC buyer faces the variable vs fixed decision — and every BC realtor fields questions about it. You cannot and should not give mortgage advice, but you can and should understand how each product works, what risks buyers are taking on, and when to refer them to a mortgage broker for the specific product decision.
The Foundational Distinction: Fixed Rate vs Variable Rate
Fixed Rate Mortgages
A fixed rate mortgage locks in an interest rate for the entire term — typically 1, 2, 3, or 5 years in Canada, with 5-year fixed the most common. Regardless of what the Bank of Canada does with the overnight rate during that term, the borrower's rate and monthly payment remain unchanged.
Fixed rates are priced off Government of Canada bond yields — specifically the 5-year GoC bond for 5-year fixed mortgages. Lenders add a spread (typically 1.0–2.0%) to the bond yield to derive the mortgage rate. This means fixed rates can move independently of the BoC overnight rate — they reflect bond market expectations for future growth and inflation.
Variable Rate Mortgages
A variable rate mortgage is priced as prime rate ± a discount or premium (e.g., “prime minus 0.80%”). The prime rate is set by individual lenders, but in practice all major Canadian lenders move prime in lockstep with the Bank of Canada overnight rate. When the BoC raises by 25 basis points, prime goes up 25 basis points — and variable rate mortgage costs rise accordingly.
The Two Types of Variable Rate Mortgages
| Type | Also Called | Payment Behavior | Trigger Rate Risk |
|---|---|---|---|
| Payment-variable (adjustable) | ARM (adjustable rate mortgage), true variable | Monthly payment changes immediately when prime moves — higher rate = higher payment | None — payment adjusts automatically; no trigger rate scenario |
| Rate-variable (static payment) | Fixed-payment variable | Monthly payment stays fixed; when rates rise, more of the payment goes to interest, less to principal | Yes — if rates rise enough, entire payment covers only interest (trigger rate hit); lender can demand top-up or conversion |
⚠️ The 2022–2023 Trigger Rate Lesson
When the Bank of Canada raised the overnight rate from 0.25% to 5.00% between March 2022 and July 2023 — the fastest hiking cycle in decades — hundreds of thousands of Canadian homeowners on static-payment variable mortgages hit their trigger rates. Lenders sent letters requiring payment increases or lump-sum payments. Many borrowers were shocked because they didn't understand the static-payment structure. This is information your buyer needs before signing.
The 2026 Rate Environment: Context for Your Buyer Conversations
Note: Realtors should not make interest rate predictions. This section provides factual context about the rate environment as of 2026 — not a forecast.
After the 2022–2023 hiking cycle, the Bank of Canada began cutting the overnight rate in June 2024 and continued through 2025, bringing rates meaningfully lower from the peak. By early 2026, the overnight rate had returned to more neutral territory compared to the 2022–2023 highs. Fixed 5-year rates have also moderated as bond yields adjusted.
In this environment, the spread between variable and fixed rates is narrower than it was at the 2022–2023 peak. Buyers choosing between the two are making a closer call than they were when fixed rates were dramatically above variable. This is context your buyer's mortgage broker should be providing — your role is to ensure they're having that conversation.
Collateral Charge vs Standard Charge: The Hidden Mortgage Distinction
Beyond variable vs fixed, buyers should also understand the difference between how their mortgage is registered against the property — a collateral charge or a standard charge. This affects their flexibility at renewal.
Standard Charge Mortgage
- Registered for the exact mortgage amount
- Transferable to another lender at renewal without discharging and re-registering
- A “straight switch” at renewal costs minimal legal fees (sometimes $0–$300 covered by the new lender)
- Cannot easily add a HELOC without a new registration
Collateral Charge Mortgage
- Registered for more than the mortgage balance — often 100% or 125% of appraised value
- Not transferable — to switch lenders at renewal, you must discharge the charge and re-register, costing $500–$1,500+
- Easier to add a HELOC later (lender can advance more under the existing charge without re-registering)
- Used by TD Bank, Scotiabank, and National Bank for virtually all mortgages; optional at others
| Consideration | Standard Charge | Collateral Charge |
|---|---|---|
| Transfer at renewal | Yes — straight switch, minimal cost | No — discharge + re-register (~$500–$1,500) |
| Add HELOC later | New registration required | Lender can advance more without new registration |
| Negotiating power at renewal | Higher — easy to shop lenders | Lower — switching is costly |
| Available at | Most lenders (optional or default) | TD, Scotiabank, National Bank (mandatory) |
| Best for | Buyers who want flexibility to switch lenders | Buyers who want future HELOC access and plan to stay with same lender |
The OSFI Stress Test and How It Interacts with Rate Choice
Under OSFI's B-20 guidelines, all federally regulated lenders must qualify buyers at the higher of the actual contract rate plus 2%, or 5.25% (the floor, subject to change by OSFI). This stress test applies regardless of whether the buyer chooses variable or fixed — and regardless of whether the mortgage is insured or uninsured.
Implication for variable rate buyers: A buyer who qualifies at a variable rate of 5.5% + 2% = 7.5% stress test will qualify for the same loan amount as a buyer with a fixed rate of 5.5%. The variable rate does not allow a buyer to qualify for a larger mortgage by appearing cheaper.
For renewals: As of 2025, OSFI has confirmed that the stress test does not apply to uninsured mortgage renewals where the borrower stays with the same lender (straight switch renewals are exempt). This gives holders of existing mortgages more flexibility at renewal — they can renew at the same lender without re-qualifying at stress test rates.
Rate Holds and Offer Timing
This is the intersection of mortgage type and real estate practice that is most directly relevant to your work as a realtor. When a buyer gets pre-approved, the lender typically issues a rate hold — a guaranteed maximum rate for a defined period (usually 90–120 days).
Rate holds matter for timing your client's offer:
- Rate hold expiry before completion: If the completion date falls after the rate hold expires, the buyer will receive the rate available at completion — which may be higher if rates have risen. This is a risk you can flag without making a rate call.
- Variable rate holds:A variable rate hold guarantees the spread (e.g., prime minus 0.80%) but not the absolute rate — because prime can change during the hold period. The buyer's actual rate at closing depends on what prime is on the completion date.
- Fixed rate holds: Lock in the actual rate for the hold period, giving the buyer full payment certainty from approval through completion.
💡 Realtor Best Practice
When writing subject conditions, ask your buyer: “When does your rate hold expire?” If the subject removal date and completion date fall within the rate hold, no issue. If completion extends beyond it, advise the buyer to confirm with their broker whether the hold can be extended or whether they should expect a rate adjustment. This is a service conversation, not mortgage advice.
What Realtors Can and Cannot Say About Mortgages
BCFSA is clear that real estate licensees are not licensed to give mortgage advice. Specific product recommendations — “take the variable rate” or “lock in for 5 years” — fall under the Mortgage Brokers Act (BC) and require a separate licence. Crossing this line exposes you to a BCFSA complaint and potential discipline.
| You CAN Say | You CANNOT Say |
|---|---|
| Variable rate mortgages move with prime, which follows the Bank of Canada — your payment can increase if rates rise | I think you should take the variable rate because rates are going down |
| Fixed rates lock in your payment for the term — check with your broker on what terms are available | Lock in for 5 years — rates will go up again |
| Your rate hold expires in 90 days — confirm your completion date fits before you write the offer | The rate you qualify at is fine, just go with your bank's variable |
| Ask your mortgage broker to explain collateral charge vs standard charge before signing | Don't go to a big bank — use a credit union for the variable |
| I can refer you to a licensed mortgage broker who can walk you through the options | Trust me, variable has always been cheaper over time |
How Mortgage Structure Affects Offer Strength
Beyond the variable/fixed decision, two mortgage structural factors directly affect how competitive a buyer's offer is:
1. Insured vs Uninsured
An insured mortgage (less than 20% down) must go through CMHC, Sagen, or Canada Guaranty and has a maximum purchase price of $1.5 million (as of December 2024). Uninsured mortgages (20%+ down) have no price cap for mortgage qualification purposes (though lender policies vary). In a multiple offer situation, a buyer with 20%+ down on an uninsured mortgage presents less financing risk to the seller — their financing is not subject to CMHC approval, and they often have shorter subject periods.
2. Pre-Approval vs Full Approval
A pre-approval means the buyer has been qualified based on income, credit, and down payment — but the property itself has not been approved. Lenders still need to appraise the property and may impose additional conditions. A full approval (with property approved) is stronger — but not always achievable before an offer is written. In a competitive BC market, having a broker letter confirming strong qualification is a meaningful advantage.
Mortgage Renewal: The Hidden Risk in Rising Rate Environments
BC buyers who purchased at historically low rates in 2020–2021 with 5-year fixed mortgages are coming up for renewal in 2025–2026 at higher rates. While rates have come down from 2023 peaks, renewals may still represent payment shock for buyers who locked in at sub-2% rates.
This is relevant for listings: sellers who bought at low fixed rates and are underwater on the mortgage renewal (renewal payment exceeds their budget) may be motivated sellers. Understanding this macro context helps you serve listing clients more thoughtfully.
For buyers, the renewal risk of any mortgage they take now is 5 years away — but encouraging them to pressure-test their finances at higher rates (what if rates rise 2% at renewal?) is a responsible buyer advisory conversation.
Buyer Due Diligence Checklist: Mortgage Conversations
Questions to Ask Your Buyer Before Writing an Offer
- ✓Have you been pre-approved — and by whom (broker vs. direct lender)?
- ✓When does your rate hold expire — and does the completion date fall within it?
- ✓Do you know whether your pre-approval is for a fixed or variable rate, and have you discussed both with your broker?
- ✓What is your down payment percentage — are you insured or uninsured?
- ✓Have you asked your broker about collateral charge vs standard charge?
- ✓Have you stress-tested your budget if rates rose by 2% at renewal?
- ✓Do you have a broker who can respond within 24 hours if we need to move quickly on an offer?
Frequently Asked Questions
What is the difference between a variable rate and a fixed rate mortgage in Canada?
A fixed rate mortgage locks in an interest rate for the term (typically 1–5 years), so monthly payments stay the same regardless of Bank of Canada rate changes. A variable rate mortgage moves with the lender's prime rate, which follows the BoC overnight rate. Variable mortgages come in two forms: payment-variable (monthly payment changes with prime) and rate-variable (payment stays constant but the portion going to principal vs. interest shifts — creating trigger rate risk if rates rise significantly). Fixed rates offer payment certainty; variable rates historically have been lower on average but involve risk if rates rise.
What is a trigger rate on a variable mortgage?
A trigger rate applies to static-payment variable rate mortgages (also called rate-variable or fixed-payment variable). When interest rates rise to the point where the entire fixed monthly payment covers only interest (with nothing going toward principal), the loan has reached its trigger rate. At this point, the lender can require the borrower to increase their payment, make a lump sum payment, or convert to a fixed rate. In 2022–2023, many BC borrowers on rate-variable mortgages hit their trigger rates as the Bank of Canada raised the overnight rate rapidly. Buyers choosing variable mortgages must understand this risk.
What is a collateral charge mortgage?
A collateral charge mortgage is registered against the property for an amount higher than the actual mortgage balance — often 100% or 125% of the appraised value — to allow the lender to advance additional credit without re-registering. This makes it easier to add a HELOC or increase the credit limit later, but it is not transferable (portable) to another lender at renewal without a full discharge and re-registration. Standard charge mortgages can be switched to a new lender at renewal with minimal legal cost; collateral charges require a discharge (which can cost $500–$1,500). Buyers should ask their mortgage broker which charge type they are signing.
Can a BC realtor recommend variable or fixed rate mortgages to buyers?
No — realtors are not licensed to give mortgage advice. BCFSA regulates real estate licensees, and providing specific mortgage product recommendations falls under mortgage brokerage licensing requirements in BC (regulated by BCFSA under the Mortgage Brokers Act). What realtors can do: explain how each type works in general terms, ask about the buyer's budget flexibility and risk tolerance, and refer the buyer to a licensed mortgage broker for product selection. Realtors can note that financing terms affect the buyer's offer strength (e.g., a rate-hold expiry that doesn't align with the offer timeline), but should not advise which rate type to choose.
How does the Bank of Canada's overnight rate affect BC real estate transactions?
The Bank of Canada overnight rate directly sets the cost of short-term borrowing and influences lenders' prime rates (typically prime = overnight rate + 2.2%). Variable rate mortgages and HELOCs move with prime. Fixed rate mortgages are priced off Government of Canada bond yields (5-year bond for 5-year fixed), which respond to economic conditions and market expectations — not directly to the overnight rate. In a falling rate environment (as in 2024–2025 where the BoC cut rates multiple times), variable rate mortgage holders saw immediate payment relief, while fixed-rate holders only benefit at renewal. When advising buyers on timing, understanding where rates are in the cycle is relevant context — but the rate call itself belongs to the mortgage broker.
Bottom Line for BC Realtors
The variable vs fixed decision is your buyer's to make — with their mortgage broker's guidance. Your job is to make sure they've had that conversation before writing the offer, that their rate hold aligns with their completion date, and that they understand what they're signing. Knowing how these products actually work — trigger rates, collateral charges, stress test mechanics, rate hold types — makes you a more informed advocate for your buyer's interests, even when you're not the one advising on the specific product.
When a buyer asks “Should I go variable or fixed?”, your answer should be: “That's an important question — and here's what each one means in practice. Let's make sure you've talked it through with your broker before we remove subjects.”