Key Takeaways
- Portability is a contractual feature offered by certain mortgage products, not an automatic right available to every homeowner.
- A larger or smaller replacement mortgage can change the financial outcome, even when the existing rate is attractive.
- Comparing the lender's porting offer with the cost of breaking the contract is essential before committing to a property purchase.
What Is Mortgage Portability in Canada?
Mortgage portability allows a homeowner to transfer an existing mortgage to a new property when selling one home and buying another. Depending on the lender's conditions, you may be able to keep your outstanding mortgage balance, interest rate and remaining term instead of breaking the contract and arranging completely new financing.
For example, imagine you purchased a home with a five-year fixed mortgage at 3%. Two years later, you decide to move. If your mortgage is portable and your lender approves the new property, you may be able to carry the existing mortgage terms into your next home.
The main attraction is avoiding an expensive mortgage break, particularly when your current interest rate is more favourable than rates available today.
How Does Mortgage Portability Work?
Porting begins with your existing lender. You sell your current property, purchase another one and ask the lender to move the mortgage financing to the replacement property.
The lender reviews the application and decides whether the new home, mortgage amount and transaction timing meet its requirements. Your existing mortgage does not simply follow you automatically. The lender must approve the arrangement and register its security against the new property.
Portability conditions vary. Some lenders require the sale and purchase to close within a specified period. Others may impose restrictions on eligible mortgage products, borrowers or property types.
The Financial Consumer Agency of Canada recommends checking directly with your lender to confirm whether your mortgage is portable and what restrictions apply.
What Happens If Your New Home Costs More?
A more expensive property may require a larger mortgage than your current balance. Some lenders allow borrowers to keep the existing mortgage portion and borrow the additional amount at a different rate.
This arrangement is commonly called a blend-and-increase mortgage. The lender combines the existing mortgage terms with financing for the additional amount, although the exact calculation and available options depend on its policy.
Consider an illustrative situation:
- Existing mortgage balance: $350,000
- Amount needed for the next property: $450,000
- Additional borrowing required: $100,000
The original $350,000 may retain its existing rate, while the additional $100,000 is priced using the lender's applicable rate or blending method.
Ask whether the new borrowing changes your payment, remaining term or renewal date. A lower rate on the original balance does not automatically make the entire new mortgage inexpensive.
What If Your New Home Costs Less?
Downsizing can create a different problem. Suppose your outstanding mortgage is $350,000, but the replacement property requires only $280,000 in mortgage financing.
You may need to repay the remaining $70,000. Depending on your contract and the lender's porting rules, a prepayment penalty could apply to the portion that cannot be transferred.
This is why homeowners should request a written calculation before accepting an offer on a smaller property. The penalty can affect the amount of money available for moving expenses, renovations or other financial priorities.
Do You Have to Qualify Again When Porting?
Yes, you should expect the lender to review your circumstances rather than assume your original approval still applies.
Your income, employment, outstanding debts, credit profile, new property value and requested mortgage amount may all matter. The lender may request updated financial documents and a property appraisal.
For uninsured mortgages with federally regulated lenders, OSFI's minimum qualifying rate is generally the greater of the contract rate plus 2% or 5.25%. The applicable underwriting requirements depend on the mortgage and transaction.
A change in employment, higher debt or a larger borrowing request could affect approval, even if you have made every payment on your existing mortgage.
Can You Port Your Mortgage to Another Bank?
Mortgage portability normally means moving your mortgage to another property while staying with the same lender. It does not mean transferring your existing mortgage contract to a completely different financial institution.
The Financial Consumer Agency of Canada explains that switching lenders requires breaking the current mortgage contract and qualifying for a new mortgage. Discharge, registration, appraisal and prepayment costs may apply.
If you want to move to another bank, compare its new mortgage offer against the full cost of leaving your existing agreement.
Mortgage Portability vs Breaking Your Mortgage
Portability can be attractive when your current rate is favourable and the lender's conditions fit your moving schedule. Breaking the mortgage may make more sense when current market rates are lower, the porting offer has costly conditions or another lender provides a better overall deal.
Compare the prepayment penalty, legal and administrative fees, appraisal costs, new interest rate, remaining term and total interest you could pay.
Also remember that mortgage portability and mortgage insurance portability are different. CMHC has a separate program that may allow eligible borrowers to transfer existing mortgage loan insurance to another property, subject to its conditions.
TwikUp's Perspective
Mortgage portability should be evaluated as part of your wider financial plan, not simply as a way to keep an existing interest rate. Before moving, consider your new home's purchase price, monthly payment, closing costs, moving expenses and the amount of cash you want to keep accessible.
It is also worth planning how your savings will support upcoming expenses. Money set aside for moving costs, renovations or mortgage-related payments should not automatically be locked into long-term investments. Our guide to GIC Ladder Strategy Canada: How to Earn Interest Without Locking Away Savings explains how staggered GIC maturity dates can help Canadians balance interest earnings with planned access to their savings.
Ultimately, portability is useful only when the complete offer works in your favour. Compare the lender's porting conditions, potential penalties and additional borrowing costs before making a decision. A lower interest rate alone does not necessarily mean a cheaper move.
Disclaimer
This article provides general educational information about mortgage portability in Canada. Portability conditions, interest rates, fees and approval requirements vary by lender and mortgage contract. Speak with your lender or a licensed mortgage professional before making a property purchase or changing your mortgage arrangements.