Breaking your mortgage early can make sense when refinancing, selling your home, or switching lenders—but it can also come with costly penalties if you’re not careful. In today’s mortgage environment, understanding how penalties are calculated is critical before making a move.
Here’s what Canadian homeowners need to know about mortgage break penalties and how to minimize them.
A mortgage break penalty is a fee charged by your lender when you end your mortgage before the term expires. Penalties are designed to compensate lenders for lost interest revenue.
The amount depends on:
Mortgage type (fixed or variable)
Remaining term
Interest rate differences
Lender policies
For most variable-rate mortgages, the penalty is typically:
Three months’ interest, or
A fixed formula set by the lender
Variable penalties are generally more predictable and lower than fixed mortgage penalties.
Fixed-rate mortgage penalties are often calculated using the Interest Rate Differential (IRD), which can result in significantly higher costs.
Factors that affect IRD penalties:
Your contract rate vs current rates
Remaining term
Posted vs discounted rates
Lender-specific formulas
This is where many borrowers are caught off guard.
In today’s environment:
Rates have moved significantly since many mortgages were issued
Borrowers are refinancing to reduce payments or consolidate debt
Lenders’ IRD calculations can vary widely
This makes understanding penalties more important than ever.
Even with penalties, breaking your mortgage can be worthwhile if:
Interest savings exceed penalty costs
You’re consolidating high-interest debt
You’re selling or moving
You’re accessing equity for major expenses
A break-even analysis is essential.
Use prepayment privileges before breaking
Consider porting your mortgage
Time your break close to maturity
Ask for a penalty estimate in writing
Work with a mortgage professional
Small strategies can lead to big savings.
How is my penalty calculated?
Is it based on posted or discounted rates?
Can I port my mortgage?
Are there blending options available?
Clarity upfront prevents surprises later.
Breaking your mortgage early can be a smart move—but only if you fully understand the penalties involved. In many cases, borrowers focus on lower rates while overlooking penalty costs that erase potential savings.
Before making any changes, calculate the full picture and seek professional guidance.

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