Key Takeaway

A mortgage payment deferral in Canada lets you pause your regular payments temporarily (typically 3 to 6 months), but interest continues to accrue during that period. The unpaid interest gets added to your principal balance, which extends your amortization period and increases your total interest costs over the life of the mortgage. A 6-month deferral on a C$400,000 mortgage at 5.5 per cent can add over C$11,000 in interest to your principal and extend your mortgage by several months or more, depending on your remaining term.

What Is a Mortgage Payment Deferral?

A mortgage payment deferral is a temporary arrangement with your lender that allows you to pause your regular mortgage payments for a specified period, usually between 3 and 6 months. During the COVID-19 pandemic, many Canadian lenders offered deferrals to homeowners facing sudden income loss, and similar programs may be available during other periods of financial hardship.

According to the Financial Consumer Agency of Canada, mortgage deferrals are not forgiveness programs: you still owe the full amount, and interest continues to accrue on your outstanding balance throughout the deferral period (FCAC, 2024). The deferral simply postpones when you have to make payments, giving you short-term cash flow relief.

How Deferrals Work in Canada

When you request a mortgage deferral, your lender temporarily suspends your payment obligations. However, the mechanics differ from simply skipping payments:

Interest keeps accumulating. Your mortgage balance continues to grow during the deferral period because interest compounds on the unpaid principal. Unlike your regular payments, which chip away at both principal and interest, a deferral lets the interest pile up unchecked.

Capitalization happens at the end. When the deferral period ends, the accumulated interest is typically capitalized, meaning it gets added to your principal balance. You then resume payments on this new, higher balance.

Your amortization extends. Because your principal increased, it takes longer to pay off the mortgage. Your remaining amortization period grows, and you will pay more interest over the life of the loan, as covered in foundational finance texts such as Principles of Finance (OpenStax, 2024).

Your payment may increase. Depending on your lender and your mortgage terms, your regular payment amount might increase after the deferral ends to account for the higher principal, or your lender may simply extend the amortization period and keep the payment the same.

What a Deferral Really Costs You

The true cost of a mortgage deferral has three components:

1. Accrued interest added to principal. If you have a C$400,000 mortgage at 5.5 per cent and defer payments for 6 months, approximately C$11,000 in interest will accrue and be added to your principal. Your new balance becomes C$411,000.

2. Extended amortization. With a higher principal balance, your mortgage takes longer to pay off. A 6-month deferral can extend your amortization by 8 to 12 months or more, depending on where you are in your mortgage term and how your lender recalculates the schedule.

3. Additional interest over the mortgage life. Because you are paying interest on a higher balance for a longer period, your total interest costs increase significantly. On a C$400,000 mortgage, a single 6-month deferral can add C$15,000 to C$20,000 or more to your total interest paid over a 25-year amortization.

These figures vary based on your interest rate, remaining amortization, and the length of the deferral, but the pattern holds: deferrals cost you money in the long run, even though they provide immediate cash flow relief.

When to Consider a Deferral

A mortgage deferral can be the right choice if you are facing a genuine short-term financial emergency: job loss, medical leave, unexpected major expenses, or other temporary income disruptions. The Canada Mortgage and Housing Corporation notes that deferrals are designed for borrowers who need breathing room to stabilize their finances, not as a routine budgeting tool (CMHC, 2024).

Deferrals make sense when:

Read also: How to Pay Off Your Canadian Mortgage Faster Using Prepayment Privileges in Canada

  • You have a clear path back to regular income within the deferral period.
  • The alternative is missing payments entirely, which damages your credit and risks default.
  • You have exhausted lower-cost options like emergency savings or a line of credit.

Deferrals are less appropriate if your financial hardship is long-term or permanent, in which case refinancing, selling, or discussing other loss-mitigation options with your lender may be better strategies.

How to Calculate Your Deferral Cost

To understand what a deferral will cost you, you need three pieces of information: your current mortgage balance, your interest rate, and the length of the deferral. The calculation involves:

  1. Calculate the interest that accrues during the deferral period. Multiply your balance by your annual rate, divide by 12, and multiply by the number of months deferred.
  2. Add that interest to your principal. This is your new balance when payments resume.
  3. Recalculate your payment or amortization. Depending on your lender’s approach, either your payment increases to keep the amortization on track, or the amortization extends to keep the payment the same.
  4. Compare the total interest paid. Calculate the total interest on the original schedule versus the total interest on the deferred schedule to see the long-term cost.

Many Canadian lenders provide online tools or work with you directly to show these projections, and major banks such as RBC offer calculators and deferral impact statements (RBC, 2024).

Alternatives to Deferrals

Before requesting a deferral, consider these lower-cost options:

Prepayment privileges. If you have made lump-sum prepayments in the past, some lenders let you skip payments up to the amount you prepaid, with no additional interest penalty.

Increase your amortization. At renewal, extending your amortization lowers your monthly payment without the immediate interest hit of a deferral.

Refinance to a lower rate. If rates have dropped or your credit has improved, refinancing to a lower rate reduces your payment and your total interest cost.

Access home equity. A HELOC or home equity loan provides cash at a potentially lower rate than carrying unpaid mortgage interest, and the interest does not automatically capitalize onto your mortgage.

Payment frequency changes. Switching from monthly to bi-weekly payments can ease cash flow in certain pay cycles without formally pausing payments.

Conclusion

A mortgage payment deferral in Canada offers crucial short-term relief during financial hardship, but it is not free money. Interest continues to accrue, your principal balance increases, and you pay more over the life of your mortgage. Understanding the real cost of a deferral helps you make an informed decision about whether pausing payments is the right move for your situation, or whether alternative strategies offer better long-term value.

Mortgage deferral terms, eligibility, and cost calculations vary by lender, province, and your specific mortgage product. Rates and policies change frequently. Always confirm the exact terms and costs with your lender or a licensed mortgage professional before requesting a deferral, and verify that the deferral fits within your broader financial recovery plan.

Disclaimer: This article provides general educational information about mortgage payment deferrals in Canada and is not personalized financial, lending, legal, or tax advice. It is not an offer or commitment to lend. Mortgage rules, deferral policies, interest calculations, and available relief programs vary by province, territory, lender, and individual circumstances. Consult a licensed mortgage broker or your financial institution for advice tailored to your personal situation.