Refinancing to Reduce Rate

Refinancing to Reduce Rate

Refinancing3 min readFebruary 11, 2026
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Refinancing a mortgage to obtain a lower interest rate is one of the most common reasons Quebec borrowers consider breaking their mortgage contract before term. The decision hinges on a fundamental calculation: the break-even point, meaning the number of months needed for interest savings to offset the prepayment penalty and related fees. In Canada, the penalty is generally the greater of two amounts: three months' interest or the interest rate differential (IRD), in line with OSFI-regulated practices. The break-even calculation requires factoring in the break penalty, notary fees (mandatory in Quebec under the CCQ for the mortgage deed), appraisal fees, and discharge fees. The spread between the current rate and the new rate must be significant enough to justify these costs. As a general rule, a spread of 0.50% to 1.00% is often cited as the minimum threshold, but every situation is unique. AMF-certified mortgage brokers in Quebec use simulation tools to déterminé whether refinancing is profitable over the horizon of the new term. OSFI and CMHC impose a maximum loan-to-value ratio of 80% for conventional refinancing, meaning the borrower must retain at least 20% equity in their property.

Refinancing to Lower Your Rate: When Is It Truly Worthwhile?

Falling interest rates are often the trigger that prompts Quebec homeowners to consider mortgage refinancing. The appeal of a lower rate can seem irresistible, especially when the gap between the current contractual rate and available market rates is significant. However, breaking a mortgage before term involves substantial costs, and the profitability of the transaction depends entirely on the break-even calculation.

The Break-Even Calculation: The Key to Your Decision

The break-even point represents the number of months needed for interest savings achieved through the new rate to offset all refinancing costs. The basic formula is straightforward: divide the total refinancing cost by the net monthly savings. For example, if a borrower has a $300,000 balance at 5.50% and can obtain a rate of 4.25%, the monthly interest savings is approximately $312. If the break penalty and fees total $8,500, the break-even point is approximately 27 months. If the new term is 5 years (60 months), the borrower will benefit from 33 months of net savings after reaching break-even.

Understanding the Prepayment Penalty

In Canada, for a fixed-rate mortgage, the penalty is the greater of three months' interest and the interest rate differential (IRD). The IRD compares your contractual rate to the lender's current rate for a term equivalent to the remaining duration of your contract. The larger the spread and the more months remaining on the term, the higher the IRD penalty will be. For a variable-rate mortgage, the penalty is almost always limited to three months' interest, making it generally much less costly.

Interest Rate Differential (IRD)
A mortgage penalty calculation method that represents the difference between the borrower's contractual rate and the lender's current rate for a term matching the remaining contract duration, applied to the balance and multiplied by the number of months remaining on the term. It is generally the method that produces the highest penalty on a fixed-rate mortgage.

Complete Costs to Consider in Quebec

  • Prepayment penalty: the most significant cost, potentially representing thousands or even tens of thousands of dollars on a fixed-rate mortgage.
  • Notary fees: in Quebec, the CCQ requires a notary for any immovable hypothec. Budget $1,000 to $2,000 for the refinancing deed.
  • Appraisal fees: the new lender will often require a professional property appraisal, costing $300 to $500.
  • Discharge or release fees: if you are switching lenders, the current mortgage must be discharged from the Quebec Land Registry. These additional notary fees range from $400 to $800.
  • Application or administration fees: some lenders charge processing fees, though many absorb them to attract new clients.

When Refinancing Makes Sense

  1. Sufficient rate spread: A spread of at least 0.75% to 1.00% between your current rate and the new rate generally provides enough margin to offset costs, especially if the mortgage balance is high ($200,000 and above).
  2. Long remaining term duration: The more months remaining on the current term, the higher the IRD penalty will be, but also the more time you will have to recoup refinancing costs on the new term. Ideally, at least 24 to 36 months should remain for refinancing to make sense.
  3. Significant mortgage balance: A $300,000 balance with a 1% spread generates $3,000 per year in interest savings, while a $150,000 balance with the same spread generates only $1,500. The balance amplifies the impact of the rate spread.
  4. Loan-to-value ratio verification: OSFI requires a maximum loan-to-value ratio of 80% for refinancing. Ensure your property has sufficient value to meet this threshold before initiating the process.

Practical Advice for Quebec Borrowers

Before contacting your AMF-certified mortgage broker, gather the following information: your recent mortgage statement showing the balance, rate, and term maturity date, as well as a penalty statement from your current lender. Your broker can then perform a precise break-even analysis factoring in all costs. Keep in mind that the penalty can vary from day to day, as it depends on the declining balance and prevailing rates. Under the LDPSF, your broker is obligated to present a complete and transparent analysis of the refinancing profitability.

Frequently Asked Questions

How do you calculate the break-even point of a mortgage refinance?
The break-even point is calculated by dividing the total refinancing cost (penalty + notary fees + appraisal + discharge) by the monthly savings achieved with the new rate. For example, if the total cost is $6,000 and you save $200 per month in interest, the break-even point is 30 months. Beyond 30 months, the refinance becomes profitable.
What rate spread justifies refinancing?
There is no universal rule, but generally a spread of at least 0.50% to 1.00% between your current rate and the new rate is needed for the refinance to be worthwhile, especially if you have less than 2 years remaining on your term. Your AMF-certified mortgage broker can calculate the exact break-even for your situation.
What costs should be included in the break-even calculation?
Costs include the prepayment penalty (3 months' interest or IRD, whichever is greater), notary fees ($1,000 to $2,000 in Quebec), appraisal fees ($300 to $500), discharge fees if you are switching lenders, and any application fees from the new lender.
Is the penalty always the IRD for a fixed-rate mortgage?
For a fixed-rate mortgage, the penalty is the greater of three months' interest and the interest rate differential (IRD). Each lender has its own method for calculating the IRD, and some use the posted rate rather than the discounted rate, which can significantly inflate the penalty. Your broker can request an exact penalty statement from your current lender.
Is refinancing worthwhile if I only have 12 months left on my term?
Rarely. With only 12 months remaining, the period to recoup the costs is short. It is usually better to wait until the term expires and negotiate a new rate at renewal, penalty-free. However, if the rate spread is very large and the balance is high, a precise calculation is warranted.
Can I refinance if my loan-to-value ratio exceeds 80%?
No. OSFI requires a maximum loan-to-value ratio of 80% for conventional refinancing in Canada. If your equity is insufficient, you will need to consider other options such as waiting for the property value to increase, making prepayments to reduce the balance, or exploring a blend-and-extend with your current lender.

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Educational information only. This does not constitute financial advice under the Act Respecting the Distribution of Financial Products and Services (LDPSF). Consult an AMF-certified mortgage broker before making any financial decision.

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