Key Takeaway

Open mortgages offer maximum flexibility with no penalties for prepayment or early termination, making them ideal for short-term needs or when you expect to sell soon. Closed mortgages lock you into a term (typically 1 to 5 years) with significantly lower interest rates but charge substantial penalties if you break the contract early. Most Canadian homeowners choose closed mortgages for the rate savings, accepting limited prepayment privileges (usually 10 to 20 per cent per year) in exchange for paying less interest over the term.

1. Interest Rate: The Core Trade-Off

Closed mortgages carry interest rates that are typically 1 to 3 percentage points lower than open mortgages. As of July 2026, rates change frequently, so verify current terms with a licensed mortgage professional before deciding. According to the Financial Consumer Agency of Canada, this rate difference exists because lenders accept more risk and less guaranteed income with open products (FCAC, 2026).

The rate gap means that on a C$400,000 mortgage, a closed mortgage at 5.5 per cent costs roughly C$2,400 per month, while an open mortgage at 7.5 per cent costs around C$2,800 per month. Over a year, that is C$4,800 more in interest for the flexibility.

2. Prepayment Freedom

Open mortgages let you pay any amount toward your principal at any time, with no penalty. You can pay off the entire balance tomorrow if you have the funds.

Closed mortgages restrict prepayment. Most lenders allow you to prepay 10 to 20 per cent of the original principal per year without penalty, and some permit increasing your regular payment by up to 20 per cent annually. Anything beyond those limits triggers a prepayment penalty. The Canada Mortgage and Housing Corporation notes that these prepayment privileges vary significantly by lender and product (CMHC, 2026).

3. Breaking the Mortgage: Penalty Structure

With an open mortgage, you can break the contract, refinance, or switch lenders anytime without paying a penalty. This makes open mortgages suitable when you plan to sell within months, expect a large bonus or inheritance, or anticipate refinancing soon.

Closed mortgages charge a prepayment penalty if you break the contract before the term ends. The penalty is the greater of three months’ interest or the interest rate differential (IRD). The IRD calculation compares your contract rate to the lender’s current rate for the remaining term and can reach tens of thousands of dollars on a large mortgage with several years left. As foundational texts such as Principles of Finance explain, lenders use the IRD to recover the interest income they lose when you exit a contract early.

4. Term Length and Typical Use Cases

Open mortgages are almost always short-term, ranging from six months to one year. Lenders rarely offer longer open terms because the higher rate does not compensate for the increased refinancing risk over multiple years.

Closed mortgages are available in terms from one to ten years, with five-year terms being the most common in Canada. At the end of the term, you renew (renegotiate the rate and term with your current lender), refinance (change the loan structure or access equity), or switch to a different lender. The mortgage term is distinct from the amortization period, which is the total time to pay off the loan (typically 25 or 30 years).

5. Portability and Assumability

Some closed mortgages include portability, letting you transfer the mortgage to a new property if you move during the term. This feature preserves your existing rate and avoids prepayment penalties. Not all closed products are portable, and the new property must qualify under the lender’s criteria.

Assumability allows a buyer to take over your mortgage when you sell, again preserving the rate. This feature is rare in both open and closed mortgages, and the buyer must meet the lender’s credit and income requirements.

Open mortgages generally do not need portability because you can simply pay them off without penalty and arrange a new mortgage for the next property.

Read also: Bridging Loans in Canada: Buying Your Next Home Before Selling

6. Who Should Choose an Open Mortgage

Open mortgages fit homeowners who:

  • Plan to sell within the next six to twelve months and want to avoid prepayment penalties.
  • Expect a large sum soon (inheritance, bonus, stock vesting) and want the freedom to pay off the mortgage immediately.
  • Are in a transitional period and uncertain about their housing needs.
  • Want a bridge product while waiting for better closed-mortgage rates to become available.

Because of the higher cost, open mortgages are rarely the right choice for long-term homeownership. Most Canadians use them only in specific short-term situations.

7. Who Should Choose a Closed Mortgage

Closed mortgages suit the majority of Canadian homeowners because:

  • The lower interest rate saves thousands of dollars per year.
  • Standard prepayment privileges (10 to 20 per cent annually) cover most people’s extra-payment needs without penalty.
  • You plan to stay in the property for the full term, or at least several years.
  • You do not anticipate needing to refinance or access equity before the term ends.

If your situation changes and you need to break a closed mortgage, you can compare the prepayment penalty to the cumulative interest savings you gained from the lower rate. In many cases, the savings still exceed the penalty.

Frequently Asked Questions

Can I switch from a closed mortgage to an open mortgage mid-term?
Yes, but you will pay the prepayment penalty for breaking the closed mortgage, then take on the higher rate of the open product. This move rarely makes financial sense unless you are about to sell or refinance immediately.

Do variable-rate mortgages come in open and closed versions?
Yes. Variable-rate mortgages can be open or closed. A closed variable-rate mortgage has a lower rate than an open variable-rate mortgage, and the same prepayment restrictions and penalties apply.

What happens at the end of a closed mortgage term?
The term expires and you renew, refinance, or switch lenders. At that point, there is no penalty for paying off the balance or changing lenders, because the contract has ended naturally.

Conclusion

Choosing between an open and closed mortgage in Canada comes down to balancing flexibility against cost. Closed mortgages deliver lower rates and suit long-term homeownership, while open mortgages provide freedom for short-term or transitional situations. Most Canadians opt for a closed mortgage and use the standard prepayment privileges to make extra payments when possible. Before committing, confirm current rates, prepayment terms, and penalty calculations with a licensed mortgage broker or your financial institution, as these details vary by lender and product.

Disclaimer: This article provides general educational information only and is not personalized financial, lending, legal, or tax advice, nor an offer or commitment to lend. Mortgage products, rates, prepayment privileges, and penalties vary by province, territory, and lender. Eligibility and terms depend on your individual circumstances. Consult a licensed mortgage professional, the Financial Consumer Agency of Canada, or a qualified advisor for guidance specific to your situation.