Convert Variable to Fixed Mortgage Safely
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When mortgage rates shift, Canadian homeowners with a variable-rate mortgage often wonder whether they should convert variable to fixed mortgage terms. This decision hinges on your risk tolerance, market conditions, and long-term financial goals. Understanding the conversion process and timing can help you lock in predictable payments without breaking your mortgage.
Converting from variable to fixed means switching your floating interest rate—which moves with your lender’s prime rate—to a locked-in rate for a set term. Most lenders allow this mid-term, often with no penalty, though the rate you receive may differ from advertised offers.
What Is Mortgage Conversion?
Mortgage conversion allows you to switch from a variable-rate mortgage to a fixed-rate mortgage without breaking your existing contract or applying for a new mortgage. Your lender moves you to a fixed term—typically equal to or longer than your remaining term—using their current posted or discounted fixed rates.
This feature is built into most variable-rate mortgages in Canada, giving you flexibility to lock in stability if market conditions change. You keep the same principal balance, amortization schedule, and lender—only the interest rate type changes.
How It Differs from Refinancing
Conversion happens within your existing mortgage. Refinancing means replacing your current mortgage with a new one, often from a different lender. Refinancing requires a full credit application, income verification, and stress-test qualification. It may also trigger prepayment penalties.
Conversion typically avoids these hurdles. Most lenders process conversions internally, without new approvals or legal costs. However, the fixed rate you receive is usually the lender’s current posted rate, which may be higher than competitive market rates.
When to Convert to Fixed
Timing your conversion depends on three factors: your financial cushion, the Bank of Canada’s rate trajectory, and the current spread between variable and fixed rates. If you can absorb potential rate increases and believe further cuts are coming, staying variable may be advantageous.
If your budget would be strained by a $300 to $500 monthly payment increase, or if you value predictable payments over potential savings, converting to fixed now could provide peace of mind. Consider conversion when the spread between your variable rate and available fixed rates is modest—currently around 0.44 to 0.54 percentage points.
Market Signals to Watch
- Bank of Canada policy statements: The Bank held its overnight rate at 2.25% in March 2026, signalling that further cuts are unlikely unless economic conditions weaken.
- Government of Canada bond yields: Fixed mortgage rates track five-year bond yields, which have been rising due to inflation expectations and global market pressures.
- Inflation trends: Rising inflation typically prompts the Bank of Canada to raise rates, which would increase variable mortgage costs.
- Prime rate stability: The prime rate at major lenders sits at 4.45% as of March 2026, unchanged since October 2025.
Who Should Consider Converting
- Budget-constrained households: If a 0.5% rate increase would strain your monthly budget, locking in now protects you from payment shocks.
- Risk-averse borrowers: Fixed payments eliminate uncertainty, which can be valuable if you prefer stable budgeting over potential savings.
- Long-term homeowners: If you plan to stay in your home for the full term, locking in avoids the risk of higher renewal rates in three to five years.
- Those nearing trigger rates: If your fixed-payment variable mortgage is approaching the point where payments no longer cover interest, conversion can prevent negative amortization.
Who Should Stay Variable
- High financial cushion: If you can absorb a 2% rate increase without stress, staying variable may yield lower costs if the Bank cuts rates again.
- Short time horizon: If you plan to sell or pay off your mortgage within two years, the lower variable rate and modest prepayment penalty may offer better value.
- Belief in further rate cuts: If you expect the Bank of Canada to cut rates below 2.00% in the next 12 to 18 months, staying variable could save thousands over the term.
How Conversion Works
Converting your variable-rate mortgage to a fixed rate typically takes one to two weeks. Your lender processes the change internally, adjusting your interest rate type while keeping your principal balance, payment schedule, and mortgage features unchanged.
Most lenders require that the new fixed term be at least the lesser of three years or the remaining period of your original term. For example, if you have four years left on a five-year variable mortgage, you could convert to a four- or five-year fixed term, but not a two-year term.
Step-by-Step Conversion Process
- Contact your lender: Call your mortgage specialist or visit a branch to request a conversion quote. Ask for the current fixed rate for your desired term.
- Review the rate and terms: Your lender will offer their posted or discounted fixed rate, which may be higher than advertised rates for new borrowers. Confirm the term length, payment amount, and any changes to prepayment privileges.
- Compare with market rates: Check whether refinancing with a different lender would offer a lower fixed rate. If the difference is significant, consider whether the refinancing costs and stress-test requirements are worth the savings.
- Sign the conversion agreement: If you proceed, your lender will send a conversion agreement outlining the new rate, term, and payment schedule. Review it carefully before signing.
- Begin fixed-rate payments: Your new fixed rate typically takes effect on your next payment date. Your payment amount may increase or decrease depending on the rate change.
Lender-Specific Rules
Each lender has different conversion policies. TD Canada Trust, for example, allows variable-to-fixed conversion at any time, but the new term must be at least the lesser of three years or the remaining period. BMO offers conversion with no cost but uses its current posted rates rather than discounted rates.
Some lenders restrict conversion to specific terms or require that you convert to a term equal to or longer than your remaining term. Before converting, confirm your lender’s rules and the exact rate you will receive. Rates and terms may vary by financial institution.
Costs and Considerations
Most lenders process variable-to-fixed conversions with no penalty or administrative fee. However, the rate you receive is typically the lender’s current posted or discounted fixed rate, which may be higher than rates offered to new borrowers or available through refinancing.
If you choose to refinance instead—switching to a different lender for a lower fixed rate—you will face prepayment penalties, legal costs, and potentially higher qualifying requirements. Variable-rate mortgages typically carry a three months’ interest penalty, which is lower than the Interest Rate Differential (IRD) penalty on fixed-rate mortgages.
Penalty Comparison
| Scenario | Variable Penalty | Fixed Penalty (IRD) |
|---|---|---|
| $500,000 balance at 4.00% | ~$5,000 (3 months’ interest) | $10,000–$25,000+ (rate differential) |
| Conversion to fixed (same lender) | $0 | N/A |
| Refinancing to new lender | ~$5,000 + legal costs | $10,000–$25,000+ + legal costs |
Payment Changes After Conversion
When you convert from variable to fixed, your monthly payment may increase or decrease depending on the rate difference. If your variable rate was 3.35% and you lock in at 3.89%, your payment will rise. On a $500,000 mortgage with 25 years remaining, this could mean an extra $150 to $200 per month.
Before converting, ask your lender for a payment estimate at the new fixed rate. This allows you to budget for the change and assess whether the stability is worth the potential cost increase.
Current Market Context 2026
As of March 2026, the best five-year variable rate in Canada sits around 3.35%, compared to roughly 3.89% for the best insured five-year fixed rate. This spread of 0.54 percentage points is narrower than historical averages, reducing the potential savings from staying variable.
The Bank of Canada held its overnight rate at 2.25% in March 2026, keeping the prime rate at 4.45%. The Bank has signalled that further cuts are unlikely unless the economy weakens, meaning variable rates may have limited room to fall further.
Fixed Rate Outlook
Fixed mortgage rates in Canada are priced off Government of Canada bond yields, not the Bank of Canada’s policy rate. Bond yields have been rising due to global inflation concerns and fiscal pressures, pushing fixed rates higher even as the overnight rate holds steady.
The best insured five-year fixed rate rose from 3.79% in February 2026 to 3.94% in March 2026. If bond yields continue to climb, today’s fixed rates may represent a better value than rates available in three to six months.
Savings Comparison Example
Consider a $500,000 mortgage with 25 years remaining. If you stay variable at 3.35% and rates hold steady, you could save roughly $9,660 over five years compared to locking in at 3.89%. If your variable rate rises by 0.50% after one year, your savings drop to around $6,440.
If your variable rate increases by 1.00% within two years, your total costs could exceed the fixed-rate scenario. The decision hinges on your belief about where rates are headed and your ability to absorb payment increases if you are wrong. For personalized mortgage guidance, explore our mortgage resources.
Conversion vs Refinancing
If your current lender offers a fixed rate that is significantly higher than competitive market rates, refinancing with a new lender may be worth considering. Refinancing replaces your existing mortgage with a new one, allowing you to access lower rates or change lenders.
However, refinancing requires full re-qualification, including income verification and the mortgage stress test. As of March 2026, borrowers must qualify at the higher of the Bank of Canada’s qualifying rate (5.25%) or their contract rate plus 2%. If your financial situation has changed since you first obtained your mortgage, you may not qualify.
When Refinancing Makes Sense
- Significant rate difference: If competitive fixed rates are 0.50% or more below your lender’s conversion rate, refinancing could save thousands over the term.
- Strong credit and income: If your credit score and income have improved since you obtained your mortgage, you may qualify for better rates elsewhere.
- Accessing equity: Refinancing allows you to borrow against your home equity for renovations, debt consolidation, or other purposes—up to 80% of your home’s value.
When Conversion Is Better
- Small rate difference: If your lender’s conversion rate is within 0.20% to 0.30% of market rates, the simplicity and zero-cost conversion may outweigh refinancing savings.
- Stress-test concerns: If your income has dropped or your debt has increased, you may not qualify for refinancing at current stress-test levels.
- Speed and convenience: Conversion takes one to two weeks with no paperwork or legal costs. Refinancing can take four to eight weeks and involves legal fees, appraisal costs, and application processing.
Bottom Line
Converting from a variable-rate mortgage to a fixed rate can provide payment stability and protection from future rate increases. As of March 2026, the narrow spread between variable and fixed rates—around 0.54 percentage points—means the cost of locking in is relatively modest compared to historical averages.
If you value predictable payments and believe the Bank of Canada will hold or raise rates in the coming year, converting now could be a prudent choice. If you have a strong financial cushion and expect further rate cuts, staying variable may yield lower costs. The key is matching your decision to your risk tolerance, budget flexibility, and rate outlook.
Before converting, confirm your lender’s conversion rate, term restrictions, and payment changes. Compare this with competitive market rates to determine whether refinancing might offer better value. For ongoing insights into mortgage rates and financial strategies, subscribe to our newsletter to stay informed about market changes and opportunities.
convert variable to fixed mortgage – FAQ
Can I convert my variable-rate mortgage to fixed at any time?
Most lenders in Canada allow you to convert from variable to fixed at any time during your mortgage term without penalty. However, the new fixed term must typically be at least the lesser of three years or the remaining period of your original term. Confirm your lender’s specific conversion rules before proceeding.
What fixed rate will I receive when converting?
When you convert, your lender will offer their current posted or discounted fixed rate, which may be higher than rates advertised for new borrowers. The rate is not negotiable in most cases—you receive the lender’s standard conversion rate for the term you select. Rates and terms may vary by financial institution.
Does converting from variable to fixed cost anything?
Conversion within your existing lender typically has no fee or penalty. You keep the same mortgage balance, lender, and amortization—only the interest rate type changes. If you refinance to a different lender for a lower rate, you will face prepayment penalties (usually three months’ interest for variable mortgages) plus legal and appraisal costs.
When is the best time to lock in a variable rate mortgage?
The optimal time to convert depends on your risk tolerance and rate outlook. If the Bank of Canada signals that rate cuts are ending or inflation is rising, locking in before rates increase can protect your budget. If you expect further cuts and can absorb potential payment increases, staying variable may yield savings. Monitor Bank of Canada announcements and bond yield trends to inform your timing.
Will my mortgage payment change after conversion?
Yes, your payment may increase or decrease depending on the rate difference between your variable rate and the new fixed rate. If the fixed rate is higher, your payment rises. Before converting, ask your lender for a payment estimate at the new rate so you can budget accordingly.
Can I convert to a shorter fixed term?
Most lenders require that the new fixed term be at least the lesser of three years or the remaining period of your original mortgage term. For example, if you have four years left, you can convert to a four- or five-year fixed term but not a two-year term. Check with your lender for their specific term requirements.
What is the difference between conversion and refinancing?
Conversion changes your interest rate type within your existing mortgage—no new application, no legal costs, no stress test. Refinancing replaces your entire mortgage with a new one, often from a different lender. Refinancing may offer lower rates but requires full re-qualification, prepayment penalties, and legal fees.
How long does it take to convert a mortgage?
Conversion typically takes one to two weeks. Your lender processes the change internally, adjusting your rate type and payment schedule. The new fixed rate usually takes effect on your next payment date. Refinancing, by contrast, can take four to eight weeks and involves appraisal, legal review, and underwriting approval.
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