How to Refinance Your Mortgage in Canada and When It Makes Sense

Key Takeaway

Refinancing your Canadian mortgage means breaking your current mortgage term early to get a new loan, usually to secure a lower interest rate, access home equity, or consolidate debt. It makes sense when the interest savings or financial benefit outweighs the prepayment penalty (often calculated as the interest rate differential), legal fees, and other closing costs. Calculate your break-even point to determine if refinancing saves you money over the remaining term.

What Refinancing Means in Canada

Refinancing differs from renewal. At the end of your mortgage term (typically one to five years), you renew with the same or a different lender without penalty. Refinancing happens before your term ends, which triggers prepayment penalties and new closing costs.

Canadians refinance to lower their interest rate, switch from variable to fixed (or vice versa), access home equity for renovations or debt consolidation, or remove mortgage default insurance once they reach 20 per cent equity.

What You Will Learn

You will learn how to calculate whether refinancing saves money, what costs to expect, how to compare lenders, and the step-by-step process to complete a refinance in Canada. You will also discover when refinancing makes financial sense and common mistakes to avoid.

Step 1: Calculate Your Prepayment Penalty

The prepayment penalty is the largest cost when you refinance before your term ends. Most closed mortgages charge the greater of three months’ interest or the interest rate differential (IRD).

The IRD compares your current rate to the rate your lender would charge today for the time remaining on your term. If rates have dropped significantly, the IRD penalty can be substantial, sometimes tens of thousands of dollars on a large mortgage.

Request a penalty estimate from your current lender in writing. Ask for both the three-month interest calculation and the IRD calculation, along with the exact formula they use. According to the Financial Consumer Agency of Canada, lenders must provide this information when you request it (FCAC, 2026).

Step 2: Identify All Refinancing Costs

Beyond the prepayment penalty, expect to pay legal fees (typically C$800 to C$1,500), an appraisal fee (C$300 to C$500), a title search, and potential lender setup fees. Some lenders offer to cover legal fees or appraisal costs as a promotion, but verify the final cost breakdown in writing.

If you are accessing more than 80 per cent of your home’s value, you will need mortgage default insurance through CMHC, which adds a premium based on your loan-to-value ratio.

Add up every cost to determine your total refinancing expense. This number is critical for calculating your break-even point.

Step 3: Compare Interest Savings

Shop rates with at least three lenders, including your current lender, major banks (RBC, TD, Scotiabank, CIBC), and mortgage brokers who can access multiple lenders. As of July 2026, fixed and variable rates fluctuate based on the Bank of Canada policy rate and OSFI stress test requirements, so verify current rates before deciding.

Calculate the monthly payment difference between your current rate and the new rate. Multiply the monthly savings by the number of months remaining in your amortization period to estimate total interest savings.

For example, if refinancing saves you C$200 per month and you have 20 years (240 months) remaining, your potential savings is C$48,000. Compare this to your total refinancing cost to see if the math works.

Step 4: Determine Your Break-Even Point

Divide your total refinancing cost by your monthly savings. The result is the number of months it takes to recover your costs. If your break-even point is 18 months and you plan to stay in your home for five more years, refinancing likely makes sense. If you plan to move in one year, you will not recover the costs.

Also consider opportunity costs. If you have high-interest debt (credit cards, personal loans), using home equity to consolidate debt at a lower mortgage rate can save more than a simple rate reduction.

Step 5: Apply and Complete the Refinance

Once you choose a lender, submit a mortgage application with proof of income, employment verification, recent tax returns, and property details. The lender orders an appraisal to confirm your home’s current value and calculates your loan-to-value ratio.

You must pass the OSFI mortgage stress test, which requires you to qualify at the greater of your contract rate plus two percentage points or the Bank of Canada qualifying rate. This applies even if you are refinancing with the same lender.

Your lawyer handles the title transfer, discharges your old mortgage, and registers the new one. The process typically takes two to four weeks from application to completion. You will sign final documents at your lawyer’s office, and the new lender funds the mortgage and pays off your existing lender.

Practical Tips

Negotiate closing cost coverage with your new lender. Many lenders will cover legal fees or appraisal costs to win your business.
Time your refinance carefully. If rates are falling, consider waiting a few months if your penalty is high. If rates are rising, lock in quickly.
Use a mortgage broker to compare offers from multiple lenders at once, saving time and ensuring you see the best available rates.
If you are accessing equity, borrow only what you need. A higher loan-to-value ratio increases your interest rate and may require CMHC insurance.

Common Mistakes to Avoid

Do not assume your current lender offers the best rate. Loyalty does not guarantee competitive pricing, and switching lenders often results in better terms.

Avoid refinancing based solely on a lower rate without calculating total costs. A slightly lower rate may not offset a large prepayment penalty.

Do not forget to factor in the stress test when applying. If your income or credit has changed since your original mortgage, you may not qualify at today’s rates.

Never skip reading the fine print on prepayment privileges in your new mortgage. If you plan to make lump-sum payments or increase your regular payment, confirm your new mortgage allows it without penalty.

Frequently Asked Questions

How much does it cost to refinance a mortgage in Canada?
Costs typically range from C$1,000 to C$5,000 in legal and appraisal fees, plus the prepayment penalty, which varies widely based on your current rate and term remaining.

Can I refinance if my home value has dropped?
You can refinance, but if your loan-to-value ratio exceeds 80 per cent due to a drop in home value, you may need mortgage default insurance or face a higher interest rate.

Is refinancing the same as a home equity line of credit?
No. Refinancing replaces your entire mortgage. A HELOC is a separate credit line secured against your home equity, often used alongside your mortgage without breaking your term.

When should I refinance instead of waiting for renewal?
Refinance early if interest rate savings significantly exceed the prepayment penalty, or if you need to access equity immediately for debt consolidation or a major expense.

Conclusion

Refinancing your Canadian mortgage can save thousands of dollars in interest or provide access to equity when you need it, but only when the numbers work in your favour. Calculate your prepayment penalty, compare all costs against your interest savings, and determine your break-even point before committing. Shop multiple lenders, verify current rates, and time your decision based on your financial goals and housing plans. Always consult a licensed mortgage broker or financial professional to confirm the best strategy for your personal situation.

Disclaimer: This article provides general educational information about mortgage refinancing in Canada and is not personalized financial, legal, or tax advice. Mortgage products, rates, prepayment penalties, and qualifying criteria vary by lender, province, and individual circumstances. The OSFI mortgage stress test and other regulatory requirements change over time. Verify current terms and consult a licensed mortgage professional before making refinancing decisions.