Finance
Fixed vs Variable Mortgage: How to Choose
personWritten by Magnus Silverstream
•calendar_todayNovember 3, 2025
•schedule8 min read
Choosing between a fixed or variable mortgage rate is one of the most important financial decisions you'll make when purchasing a property. This choice can represent thousands of dollars in savings or additional costs over the life of your loan. In this article, we analyze in depth the advantages and disadvantages of each option to help you make an informed decision.
What is a fixed-rate mortgage?
A fixed mortgage rate remains constant throughout the chosen term, typically between 1 and 10 years. This means your monthly payments stay the same regardless of market fluctuations.
Advantages of fixed rates:
• Complete payment predictability
• Protection against rate increases
• Easy budgeting
• Peace of mind
Disadvantages of fixed rates:
• Generally higher than initial variable rate
• Early repayment penalties often higher
• No benefit if rates decrease
What is a variable-rate mortgage?
A variable rate fluctuates based on the central bank's policy rate. When this rate changes, your mortgage rate adjusts accordingly, affecting either your monthly payments or the principal/interest portion of each payment.
Advantages of variable rates:
• Generally lower initial rate
• Possibility to benefit from rate decreases
• Lower early repayment penalties (often 3 months of interest)
• Historically more economical over the long term
Disadvantages of variable rates:
• Uncertainty about future payments
• Risk of significant rate increases
• Can affect your budget if rates rise rapidly
Factors to consider for your choice
Several personal factors should influence your decision:
1. Your risk tolerance
If financial uncertainty causes you stress, a fixed rate will provide the peace of mind you need. If you're comfortable with some level of risk and can absorb fluctuations, a variable rate might suit you.
2. Your financial situation
Do you have room in your budget? If a $200 monthly increase in your mortgage payment would put you in difficulty, the fixed rate is more prudent.
3. Expected duration of ownership
If you plan to sell or refinance within the next 2-3 years, a variable rate with its reduced penalties could be advantageous.
4. Current economic context
Analyze interest rate trends. During historically low rates, locking in a fixed rate can be wise. During high rates with anticipated decreases, variable becomes attractive.
Historical analysis: fixed vs variable
Historical studies show that, over 15 to 25 year periods, the variable rate has generally been more economical than the fixed rate in about 80% of cases. However, this statistic does not guarantee future results.
The interest rate cycle:
• Low rates encourage borrowing and economic growth
• An overheating economy pushes central banks to raise rates
• High rates slow down the economy
• The cycle begins again
Understanding this cycle helps you anticipate rate movements, although it's impossible to predict exactly when and by how much rates will change.
Hybrid strategies and alternatives
You don't have to choose exclusively one or the other. Here are some alternatives:
Split mortgage
Some lenders allow you to split your mortgage, for example 50% at a fixed rate and 50% at a variable rate. This approach offers a compromise between security and potential savings.
Capped variable rate
Some institutions offer variable rates with a maximum cap. You benefit from potential decreases while being protected against excessive increases.
Conversion strategy
Many lenders allow you to convert a variable rate to a fixed rate during your term. This gives you flexibility to react to market conditions.
Questions to ask your lender
Before finalizing your choice, ask these essential questions:
• What are the early repayment penalties for each option?
• Can I convert my variable rate to a fixed rate? Under what conditions?
• What is the current spread between your fixed and variable rates?
• How will my payments be adjusted if the variable rate changes?
• Do you offer accelerated payment options?
• What are the renewal fees?
This information will allow you to compare offers from different lenders and make an informed decision.
Conclusion
The choice between a fixed and variable rate ultimately depends on your personal situation, your risk tolerance, and the economic context. There is no universal answer. Take the time to analyze your financial situation, understand the implications of each option, and consult a mortgage advisor if necessary. Use our mortgage calculator to simulate different scenarios and visualize the impact of each option on your payments and the total cost of your loan.
Frequently Asked Questions
Historically, the variable rate is generally 0.5% to 1.5% lower than the comparable fixed rate. This spread varies depending on market conditions and lender policies.