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JACKSON

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Mortgage Minute

Understanding Mortgages

What Happens If I Break My Mortgage Early?

Ending a mortgage before the term is finished can mean a prepayment penalty and other costs. The amount depends on your mortgage, lender, rate, balance, and how much time is left in the term.

6 min readUpdated September 2026

An Important Distinction

Breaking the mortgage and paying off the mortgage are not always the same thing

What happens depends on when you're paying the mortgage out and whether your contract allows you to do it without a penalty.

At the End of the Term

Your current mortgage contract has reached its maturity date.

  • The remaining balance can generally be repaid without a standard prepayment penalty
  • You may renew with the same lender
  • You may move the mortgage to another lender
  • You may refinance or repay the balance
The end of the term is normally the easiest time to make a change.

Before the End of the Term

Your mortgage contract is still in place when you want to make the change.

  • A closed mortgage may have a prepayment penalty
  • Other fees may also apply
  • Prepayment privileges may help reduce the balance first
  • Portability may be available if you're buying another home
The actual cost depends on your mortgage and your lender.

Planning Insight

Why This Matters

A mortgage penalty can be significant, so it should be part of the conversation before you sell, refinance, change lenders, or make another major change.

A lower rate on a new mortgage may look appealing, but you need to compare the savings with the cost of leaving the mortgage you already have.

Common Reasons

Why Would Someone Break a Mortgage Early?

Life doesn't always line up neatly with the end of a mortgage term.

You may need to change your mortgage because you're selling, moving, refinancing, separating, consolidating debt, or changing lenders.

You may also be looking at breaking the mortgage because a different rate or mortgage structure looks more attractive.

The real question isn't just whether you can make the change. It's whether the cost of making it is worth it in your situation.

Closed Mortgages

When a Prepayment Penalty May Apply

Most closed mortgages limit how much you can repay before the end of the term without a penalty.

A prepayment penalty may apply if you repay more than your mortgage allows, break the mortgage, move it to another lender, or pay the full balance before the term ends.

That can also happen when you sell the home and the mortgage is being paid out instead of moved to another property.

Open mortgages work differently. They generally let you pay the mortgage out early without the usual prepayment penalty, although they often come with a higher interest rate.

Penalty Calculation

Three Months' Interest or an Interest Rate Differential

How the penalty is calculated depends on the lender, the mortgage, and the type of rate you have.

For many closed fixed-rate mortgages, the penalty is generally the greater of three months' interest or an interest rate differential, often called an IRD.

An IRD is meant to compensate the lender for some of the interest they may lose when you pay the mortgage out early.

Variable-rate mortgage penalties are often based on three months' interest, but the exact calculation still depends on the lender and mortgage agreement.

How the lender calculates it matters a lot. Two people with similar mortgage balances and rates can end up with very different penalties.

Example

Why the Penalty Should Be Checked Before You Decide

Imagine you have three years left on a five-year fixed mortgage and are considering refinancing for a lower rate.

The new mortgage could lower your monthly payment, but your existing lender calculates a large prepayment penalty.

If the interest savings on the new mortgage are smaller than the penalty and other costs required to make the change, the refinance may not save you what you expected.

That doesn't automatically mean you should keep the existing mortgage. It just means the penalty needs to be included in the full comparison.

Your Actual Cost

Do Not Rely on a Rough Online Estimate

Online calculators can help you understand how a penalty might work, but they may not match your lender's exact calculation.

Your actual payout can depend on your current mortgage balance, how much time is left in the term, your rate and original discount, current comparison rates, and the rules in your mortgage.

Before making a final decision, ask the lender for a current payout or prepayment statement.

The payout statement should show the penalty and any other amounts needed to pay the mortgage out.

Other Costs

The Penalty May Not Be the Only Cost

Depending on what you're doing, there may be other expenses on top of the prepayment penalty.

These can include administration charges, mortgage discharge fees, appraisal costs, legal costs, or other lender fees.

If your original mortgage included cash back, the lender may also require some or all of it to be repaid when the mortgage is ended early.

Ask for the full payout amount rather than looking only at the penalty.

Before You Break It

There May Be Ways to Reduce or Avoid the Cost

Use an available prepayment privilege

Some mortgages let you make a lump-sum payment or increase your regular payment without a penalty. Reducing the balance first may lower the penalty when the mortgage is paid out.

Wait until the end of the term

If the penalty is large and your timing is flexible, waiting until maturity may avoid the need to break the mortgage at all.

Ask whether the mortgage is portable

If you're selling and buying another home, you may be able to move the existing mortgage to the new property instead of paying it out.

Ask about an early renewal or blend-and-extend option

Some lenders may have an option to change or extend the mortgage without going through a standard break-and-replace.

Prepayment Privileges

Your Mortgage May Already Give You Some Flexibility

Many closed mortgages let you make some extra payments without a penalty.

Depending on the lender, that may include an annual lump-sum payment, an increase to your regular mortgage payment, or another extra-payment option.

The amount, timing, and rules vary by lender and mortgage. Unused privileges may not carry forward from one year to the next.

If you're planning to break the mortgage, ask whether you can use a prepayment privilege first and whether the timing of that payment changes the penalty.

If You Are Moving

Porting May Let You Keep the Existing Mortgage

Some mortgages are portable. That means the lender may let you move the existing mortgage from your current home to another property.

Porting can sometimes avoid the need to break the original mortgage and may let you keep the existing rate and terms.

You'll still need to qualify, and the lender needs to approve the new property. There may also be timing rules and limits on how much additional financing can be added if the new home costs more.

If you're selling and buying, ask about portability before your existing mortgage is discharged.

The Decision

Compare the Cost of Leaving With the Benefit of Changing

A mortgage penalty shouldn't be looked at on its own.

Compare the penalty and other costs with what you're trying to accomplish. That might be a lower rate, better monthly cash flow, access to equity, a move, debt restructuring, or another change that matters to you.

Sometimes paying a penalty still makes sense. Sometimes the cost wipes out the benefit.

The only way to know is to compare the full numbers instead of assuming that breaking the mortgage is automatically a good or bad idea.

Planning Insight

Why This Matters

This is one of the reasons I look at the mortgage itself, not just the rate.

A mortgage with a slightly higher rate but better portability, prepayment privileges, or a more favourable penalty structure can sometimes be much more useful when life changes.

Frequently Asked

Common Questions

Clear answers to some of the most common questions about this topic.

Breaking a mortgage means ending or changing your mortgage before the current term is finished. This can happen when you sell, refinance, move the mortgage to another lender, or pay it out early.

Not always. An open mortgage can generally be paid out without a standard prepayment penalty. A closed mortgage usually has limits, and a penalty may apply if you end it before the term is finished.

It depends on the mortgage and the lender. For many closed fixed-rate mortgages, the penalty is generally the greater of three months' interest or an interest rate differential. Variable-rate mortgage penalties are often based on three months' interest.

It can. Your balance, the time left in the term, current interest rates, and the lender's calculation can all affect the amount. Ask for a current payout statement when you need the actual number.

Sometimes. An allowed lump-sum payment may reduce your mortgage balance before the penalty is calculated, but the rules and timing vary by lender. Confirm this with the lender before making the payment.

Possibly. If your mortgage is portable and you're buying another property, the lender may let you move the existing mortgage to the new home. You'll still need to qualify, and the new property and timing need to meet the lender's rules.

Personal Guidance

Still Have Questions?

If you're thinking about selling, refinancing, changing lenders, or ending your mortgage early, I can help you compare the penalty and other costs with the benefit of making the change before you decide.

Need a Second Opinion?

I can help you work through the numbers and the next step.

Ask Kiersten a Question