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№ 22 Real Estate

Breaking a Mortgage Early in British Columbia: How the Penalty Works

Learn how three months' interest and interest rate differential penalties work in British Columbia, and the ways you may be able to reduce the cost.

Real Estate4 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 13, 2026
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Key takeaways
  • The prepayment charge on a closed mortgage is usually the higher of three months' interest on the remaining balance or the interest rate differential.
  • An open mortgage, or using your prepayment privileges, can let you pay down the mortgage without a penalty.
  • When you confirm you are prepaying, your lender must give you a written statement showing the charge and how it was calculated, though the Code has exceptions.

Selling your home or refinancing before your mortgage term ends often triggers a prepayment charge. The amount can surprise people, because it depends on your interest rate, the balance left and how much of the term remains.

This article explains the two common ways the charge is worked out, how you may be able to limit it, and what your lender must tell you. Contracts differ, so your own mortgage documents decide what applies to you.

This article covers the law of British Columbia.

The two usual calculations

The prepayment charge is usually the higher of two amounts: three months' interest on the remaining balance, or the interest rate differential, often called the IRD. Your lender applies whichever is larger.

MethodWhat it looks at
Three months' interestInterest on your remaining balance
Interest rate differential (IRD)The difference between interest at your contract rate and at a current rate for a similar term

How the interest rate differential works

For the IRD, the lender works out the interest remaining on your term at your contract rate. It then works out the interest on the same period at the current posted rate for a similar term, which may be reduced by your original discount, and takes the difference.

The gap can be large. In one FCAC example, a $200,000 balance at a 6% rate, a 4% posted rate and 36 months left gives about $3,000 as three months' interest, but about $12,000 under the IRD. FCAC notes the IRD is typically used where your contract rate is higher than the current rate, and each lender's formula differs, so ask yours how it calculates the figure.

Ways to reduce or avoid the penalty

An open mortgage allows prepayment without a penalty. Prepayment privileges, such as extra lump sums or payment increases up to a limit set by the lender, can also be used without a penalty, and unused amounts usually do not carry over.

Rules that protect you when you pay out

Under the federal Interest Act, if a mortgage is not due until more than five years after its date, you may pay it off at any time after five years by paying principal, interest and three months' further interest in lieu of notice. This does not apply to mortgages given by corporations or certain prescribed entities.

When you confirm you are prepaying, the lender must give you a written statement of the charge, how it was calculated, how long the figure is valid and factors that could change it. If an IRD is used, it must also show the outstanding amount, the annual rate, the comparison rate and the remaining term. Lenders must also post online prepayment-charge calculators. This Code does not apply to mortgages entered into for business purposes or held by borrowers who are not natural persons.

What to do next

Frequently asked questions

Is the penalty always the IRD?

No. It is usually the higher of three months' interest or the IRD, so the IRD only applies when it is the larger figure. Your contract sets out the method.

Can I avoid a penalty by selling my home?

Selling does not automatically remove the charge. You may be able to limit it by porting the mortgage to a new home, using prepayment privileges, or waiting until the term ends. An open mortgage allows prepayment without a penalty.

Will my lender tell me how the penalty was calculated?

Generally yes. Once you confirm you are prepaying, the lender must give a written statement showing the charge and how it was calculated. The Code does not cover business-purpose mortgages or borrowers who are not natural persons.

Can I pay out my mortgage after five years?

If repayment is not due until more than five years after the mortgage date, the Interest Act lets you pay it off after five years by paying principal, interest and three months' further interest. It does not apply to mortgages given by corporations.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. British Columbia laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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