Fixed vs. Variable Rate Mortgage Renewal in Canada: Which Should You Choose?

Key Takeaway: Fixed-rate mortgages lock in your rate and payment for the full term, protecting you from rate increases but preventing savings if rates fall. Variable-rate mortgages fluctuate with the prime rate (tied to the Bank of Canada’s policy rate), offering potential savings when rates drop but exposing you to payment increases when rates rise. Your best choice depends on your risk tolerance, budget flexibility, and rate outlook at renewal.

Quick Comparison

Feature	Fixed Rate	Variable Rate
Rate stability	Locked in for the term	Fluctuates with prime rate
Payment predictability	Fully predictable	Changes with rate movements
Starting rate (typical)	Higher at signing	Lower at signing
Upside potential	None (rate locked)	Savings if rates fall
Downside risk	None (rate locked)	Higher payments if rates rise
Best for	Risk-averse, tight budgets	Risk-tolerant, flexible budgets
Penalty to break	Higher (interest rate differential)	Lower (three months’ interest)

Understanding Fixed-Rate Mortgages

A fixed-rate mortgage locks in your interest rate for the full term (commonly 1, 3, 5, or 10 years). Your principal and interest payment stays identical every month, regardless of what the Bank of Canada does with the policy interest rate. According to the Financial Consumer Agency of Canada, fixed rates provide certainty, which is valuable when you need predictable housing costs for household budgeting.

Pros of Fixed Rate

Complete payment stability. You know exactly what you will pay each month for the entire term, making budgeting straightforward.
Protection from rate increases. If the Bank of Canada raises rates (and prime follows), your rate and payment remain unchanged.
Peace of mind. No need to monitor rate movements or worry about affordability if rates spike.

Cons of Fixed Rate

Higher starting rate. Fixed rates are typically higher than variable rates at the time of signing, reflecting the lender’s cost of locking in funds.
No benefit from rate cuts. If the Bank of Canada lowers rates, you continue paying the original locked-in rate.
Higher penalty to break. Breaking a fixed mortgage before maturity usually triggers an interest rate differential (IRD) penalty, which can be substantial if rates have fallen since you signed.

Understanding Variable-Rate Mortgages

A variable-rate mortgage ties your rate to the lender’s prime rate, which moves in step with the Bank of Canada’s policy interest rate. When the Bank of Canada raises or lowers its overnight rate target, Canadian banks adjust prime (typically Bank of Canada rate plus 2.20 percentage points), and your mortgage rate changes accordingly. Your payment can rise or fall, or, in some structures, stay fixed while the interest-to-principal split adjusts.

Pros of Variable Rate

Lower starting rate. Variable rates are usually lower than fixed rates at signing, reducing your initial interest cost.
Potential for savings. If the Bank of Canada cuts rates, your rate drops immediately, lowering your interest expense.
Lower penalty to break. Variable mortgages typically carry a penalty of three months’ interest if you break early, far less punitive than the IRD on fixed mortgages.

Cons of Variable Rate

Payment uncertainty. Your payment can increase if the Bank of Canada raises rates, straining your budget.
Risk of rate spikes. Rapid rate hikes can significantly increase your monthly cost, especially if you are near the top of your affordability range.
Psychological stress. Monitoring rate announcements and adjusting your budget accordingly can be stressful for risk-averse borrowers.

Who Should Choose Fixed Rate?

Choose a fixed-rate mortgage at renewal if:

You operate on a tight budget. Payment stability is critical, and unexpected increases would threaten your ability to meet other obligations.
You are risk-averse. You value certainty and sleep better knowing your rate cannot rise.
You believe rates will rise. If you expect the Bank of Canada to increase rates during your term, locking in now protects you from higher costs.
You plan to stay put. If you are confident you will hold the mortgage for the full term, the higher break penalty is less of a concern.

Who Should Choose Variable Rate?

Choose a variable-rate mortgage at renewal if:

You have budget flexibility. You can absorb payment increases without financial hardship.
You are comfortable with risk. You understand that rates can rise and are willing to accept that trade-off for the lower starting rate.
You believe rates will fall or hold steady. If you expect the Bank of Canada to cut rates or maintain the current level, variable saves you money.
You may break the mortgage early. The lower penalty makes variable attractive if you anticipate refinancing, selling, or paying off the mortgage before maturity.

Hybrid Strategy: Consider a Shorter Fixed Term

If you are torn between the two, consider a shorter fixed term (1 or 2 years). This locks in your rate temporarily, giving you budget certainty in the near term, then brings you back to the renewal table sooner when you can reassess rate conditions. Shorter fixed terms typically carry slightly lower rates than longer terms, narrowing the gap with variable.

Final Recommendation

Your mortgage renewal choice hinges on three factors: your financial cushion, your tolerance for uncertainty, and your view of the rate cycle. If budget predictability is paramount or you expect rising rates, fixed is the safer bet. If you have room to absorb payment swings and believe rates will decline, variable offers cost savings. No choice is universally correct; the right one depends on your personal financial situation and risk profile.

Before renewing, compare offers from at least three lenders (not just your current one), confirm your rate qualifies under the OSFI stress test, and consult a mortgage broker or financial adviser to ensure your choice aligns with your broader financial plan. Mortgage terms, rate spreads, and prepayment privileges vary significantly across lenders, and shopping around can save thousands over the life of your mortgage.

Financial Disclaimer: This article provides general educational information about fixed and variable rate mortgages in Canada and does not constitute personalized financial, investment, or legal advice. Mortgage products, rates, penalties, and qualifying criteria vary by lender and change over time. Consult a licensed mortgage broker, Certified Financial Planner (CFP), or qualified financial adviser to evaluate your specific situation before making a mortgage renewal decision. Always verify current rates and terms directly with lenders.