Seeing a mortgage rate lower than the one you currently have can be tempting.
You may be thinking: “Why am I paying a higher interest rate when I could get a lower one?”
But before you break your existing mortgage, there’s an important question to answer:
Will the savings from the lower rate be greater than the cost of breaking your current mortgage?
The answer depends on your mortgage balance, remaining term, current interest rate, new rate, prepayment penalty, and other costs.
What Does It Mean to Break a Mortgage?
Breaking your mortgage means paying off your existing mortgage before the end of its term and replacing it with a new mortgage.
Homeowners may consider doing this when:
- Mortgage rates have dropped significantly
- They want to refinance and access home equity
- They want to consolidate higher-interest debt
- They are moving to another property
- They want to change their mortgage structure
- They believe a new mortgage will save them money
However, breaking a mortgage can come with a potentially significant prepayment penalty.
The Mortgage Penalty Can Make a Big Difference
The biggest mistake homeowners can make is looking only at the new interest rate.
For example, imagine you have:
- Mortgage balance: $400,000
- Current interest rate: 5.50%
- New available rate: 4.25%
- Remaining term: 2 years
At first glance, moving to the lower rate may seem like an obvious decision.
But if your lender charges a substantial penalty for breaking the mortgage, the interest savings may not be enough to offset that cost.
Depending on the type of mortgage and lender, the penalty calculation can vary.
For many fixed-rate mortgages, the lender may calculate the penalty using an Interest Rate Differential (IRD) formula or another method specified in your mortgage contract.
For variable-rate mortgages, the penalty may be calculated differently.
That's why it's important to get the exact payout and penalty from your current lender before making a decision.
Don't Forget the Other Costs
The penalty isn't necessarily the only cost involved.
Depending on your situation, you may also have costs associated with:
- Discharging the existing mortgage
- Legal services
- Registering the new mortgage
- Appraisal fees
- New lender fees
- Other administrative costs
Some lenders may cover certain costs when you switch, but this varies.
The important thing is to look at the total cost of switching, not just the advertised interest rate.
Calculate Your Break-Even Point
One of the simplest ways to evaluate whether breaking your mortgage makes sense is to calculate your break-even point.
For example, suppose:
Mortgage penalty + switching costs = $10,000
And your new mortgage would save you approximately:
$500 per month
Your approximate break-even period would be:
$10,000 ÷ $500 = 20 months
If you have significantly more time remaining on your mortgage term than your break-even period, switching may potentially make financial sense.
However, this is only a simplified example. The actual calculation should consider your mortgage balance, amortization, payment structure, taxes where applicable, fees, and how the new mortgage is structured.
When Could Breaking Your Mortgage Make Sense?
Breaking your mortgage isn't automatically a bad idea.
It could make sense if the potential savings are substantial enough to outweigh the costs.
For example, it may be worth exploring if:
1. You have a large mortgage balance
The larger your mortgage balance, the greater the potential interest savings from a meaningful rate reduction.
2. There is a significant difference between your current and new rate
A small rate reduction may not justify a large penalty.
A larger rate difference could potentially create enough savings to make the switch worthwhile.
3. You have a long time remaining on your term
If you still have significant time left on your mortgage, you may have more opportunity to recover the cost of breaking it.
4. You
[1:36 p.m., 2026-09-06] Nav Chahil: Should You Break Your Mortgage to Get a Lower Rate? What Canadian Homeowners Need to Know
Seeing a mortgage rate lower than the one you currently have can be tempting.
You may be thinking: “Why am I paying a higher interest rate when I could get a lower one?”
But before you break your existing mortgage, there’s an important question to answer:
Will the savings from the lower rate be greater than the cost of breaking your current mortgage?
The answer depends on your mortgage balance, remaining term, current interest rate, new rate, prepayment penalty, and other costs.
What Does It Mean to Break a Mortgage?
Breaking your mortgage means paying off your existing mortgage before the end of its term and replacing it with a new mortgage.
Homeowners may consider doing this when:
- Mortgage rates have dropped significantly
- They want to refinance and access home equity
- They want to consolidate higher-interest debt
- They are moving to another property
- They want to change their mortgage structure
- They believe a new mortgage will save them money
However, breaking a mortgage can come with a potentially significant prepayment penalty.
The Mortgage Penalty Can Make a Big Difference
The biggest mistake homeowners can make is looking only at the new interest rate.
For example, imagine you have:
- Mortgage balance: $400,000
- Current interest rate: 5.50%
- New available rate: 4.25%
- Remaining term: 2 years
At first glance, moving to the lower rate may seem like an obvious decision.
But if your lender charges a substantial penalty for breaking the mortgage, the interest savings may not be enough to offset that cost.
Depending on the type of mortgage and lender, the penalty calculation can vary.
For many fixed-rate mortgages, the lender may calculate the penalty using an Interest Rate Differential (IRD) formula or another method specified in your mortgage contract.
For variable-rate mortgages, the penalty may be calculated differently.
That's why it's important to get the exact payout and penalty from your current lender before making a decision.
Don't Forget the Other Costs
The penalty isn't necessarily the only cost involved.
Depending on your situation, you may also have costs associated with:
- Discharging the existing mortgage
- Legal services
- Registering the new mortgage
- Appraisal fees
- New lender fees
- Other administrative costs
Some lenders may cover certain costs when you switch, but this varies.
The important thing is to look at the total cost of switching, not just the advertised interest rate.
Calculate Your Break-Even Point
One of the simplest ways to evaluate whether breaking your mortgage makes sense is to calculate your break-even point.
For example, suppose:
Mortgage penalty + switching costs = $10,000
And your new mortgage would save you approximately:
$500 per month
Your approximate break-even period would be:
$10,000 ÷ $500 = 20 months
If you have significantly more time remaining on your mortgage term than your break-even period, switching may potentially make financial sense.
However, this is only a simplified example. The actual calculation should consider your mortgage balance, amortization, payment structure, taxes where applicable, fees, and how the new mortgage is structured.
When Could Breaking Your Mortgage Make Sense?
Breaking your mortgage isn't automatically a bad idea.
It could make sense if the potential savings are substantial enough to outweigh the costs.
For example, it may be worth exploring if:
1. You have a large mortgage balance
The larger your mortgage balance, the greater the potential interest savings from a meaningful rate reduction.
2. There is a significant difference between your current and new rate
A small rate reduction may not justify a large penalty.
A larger rate difference could potentially create enough savings to make the switch worthwhile.
3. You have a long time remaining on your term
If you still have significant time left on your mortgage, you may have more opportunity to recover the cost of breaking it.
4. You are refinancing anyway
If you need to access equity, consolidate debt, or make another major financial change, it may make sense to evaluate whether breaking the existing mortgage is worthwhile as part of the overall strategy.
When Might It Make More Sense to Stay?
Sometimes the best mortgage decision is to do nothing.
You may be better off keeping your existing mortgage if:
- Your penalty is very high
- Your current mortgage rate is already competitive
- You have only a short time remaining in your term
- The potential savings are relatively small
- The costs of switching eliminate most of the savings
In some cases, waiting until your mortgage comes up for renewal can be the better option.
Don't Compare Rates — Compare the Overall Cost
This is one of the most important points to remember.
A mortgage with a lower interest rate isn't necessarily the cheapest mortgage.
You should compare:
Current mortgage cost + penalty + switching costs
against
New mortgage cost over the relevant period
You should also consider the features of the new mortgage, including prepayment privileges, portability, penalties, and other terms.
Two mortgages with the same interest rate can have very different features and costs.
What About a Blended or “Blend-and-Extend” Mortgage?
Some lenders may offer an option to blend your existing mortgage rate with a new rate instead of completely breaking the mortgage.
This can sometimes reduce the immediate cost of changing your mortgage, although the new rate and terms need to be carefully reviewed.
It's worth asking your current lender what options are available before deciding to break the mortgage.
The Bottom Line
Should you break your mortgage to get a lower rate?
Maybe — but don't make the decision based on the rate alone.
Before breaking your mortgage, find out:
1. Exactly how much your penalty will be
2. How much you could save with the new mortgage
3. What additional fees you'll have to pay
4. How long it will take to recover the switching costs
5. Whether the new mortgage terms are better for your situation
A lower rate can look attractive, but the right decision is the one that makes financial sense after all costs are considered.
Thinking About Breaking Your Mortgage?
Before you pay a potentially expensive penalty, let's look at the numbers together.
I can help you compare your current mortgage, penalty, potential savings, and available options so you can make an informed decision.
Don't assume a lower rate means a better deal. Let's calculate the real savings first.
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