🏠 MORTGAGE & REAL ESTATE · UPDATED 2026
Mortgage Refinance Calculator
Find out if refinancing your Canadian mortgage makes financial sense — including break-even analysis, penalty costs, interest savings, and cash-out refinance options.
When Does Refinancing a Mortgage Make Sense in Canada?
Refinancing your Canadian mortgage means breaking your existing mortgage before its term ends and replacing it with a new one — typically to access a lower interest rate, change from variable to fixed (or vice versa), consolidate high-interest debt, or access home equity. The key question is always whether the interest savings over the remaining term outweigh the penalty cost of breaking your current mortgage. This calculator helps you answer that question precisely.
The most common reason Canadians refinance is to take advantage of lower rates. If you locked in a 5-year fixed rate at 5.5% and rates have dropped to 3.8%, breaking and refinancing may save tens of thousands over the remaining term — but only after accounting for the mortgage penalty, legal fees (typically $700–$1,500), and appraisal costs (typically $300–$500).
Understanding the Mortgage Penalty in Canada
Fixed-rate mortgage penalties in Canada are calculated as the greater of three months' interest or the Interest Rate Differential (IRD). The IRD is typically the more expensive option when rates have fallen significantly — because the bank compensates itself for the lost interest income. On a $500,000 mortgage with 3 years remaining at 5.5%, the IRD penalty could be $15,000–$25,000 or more depending on the lender. Variable-rate mortgages typically only charge three months' interest, which is usually much smaller. Always get the exact penalty figure from your lender before deciding.
Frequently Asked Questions
Can I refinance to consolidate debt in Canada?
Yes — debt consolidation is one of the most common reasons Canadians refinance. By adding high-interest debt (credit cards at 19.99%, car loans at 7%) to your mortgage (typically 4–6%), you can dramatically reduce your monthly payments and total interest paid. The risk is that you are converting unsecured debt into secured debt backed by your home — if you default, your home is at risk. There is also a risk of running up the same debts again after consolidating, leaving you worse off. Debt consolidation refinancing works best when combined with a commitment to address the spending habits that created the debt.
What is the break-even period for refinancing?
The break-even period is how long it takes for your interest savings from the new lower rate to offset the cost of breaking your mortgage (penalty plus fees). If the total cost is $18,000 and you save $500 per month in interest, your break-even is 36 months (3 years). If you plan to stay in the home and keep the mortgage for longer than the break-even period, refinancing makes financial sense. If you plan to sell or pay off the mortgage before break-even, it likely does not. This calculator automatically computes your break-even period.
Does refinancing affect my mortgage stress test in Canada?
Yes — if you are refinancing with a new lender (switching), you must re-qualify under the mortgage stress test at your new rate plus 2%, or the Bank of Canada benchmark rate, whichever is higher. If you renew with your existing lender at the end of your term, the stress test typically does not apply. If your financial situation has changed (lower income, more debt), switching lenders may be difficult. Many Canadians who have seen property value increases use a Home Equity Line of Credit (HELOC) instead of a full refinance to access equity without triggering a stress test.
When is it better to wait until renewal instead of refinancing?
If your mortgage renewal date is within 4 to 6 months, most lenders allow you to lock in a new rate early — often for free — rather than paying a penalty to break now. This is usually the better option if you are close to renewal. Similarly, if the penalty is very large (over $20,000) and the rate difference is modest (less than 0.5%), the math rarely works in your favour. Always model the full break-even calculation before deciding, and get the exact penalty figure in writing from your lender.
Related Calculators