Understanding Mortgage Portability
Mortgage portability is a feature that allows a borrower to transfer an existing mortgage—along with its interest rate and terms—from one property to another. This typically occurs when a homeowner sells their current home and purchases a new one while keeping the same lender.
In Ontario and across the GTA, mortgage portability can be an important consideration for homeowners who plan to move before their mortgage term ends. Understanding how portability works helps borrowers evaluate flexibility and potential costs when changing homes.
How Mortgage Portability Works
Mortgage portability is not automatic. It is subject to lender approval and specific conditions.
* Transferring the Mortgage
When a portable mortgage is approved, the remaining mortgage balance is transferred to the new property. The borrower keeps the original interest rate, term, and maturity date, rather than starting a new mortgage from scratch.
* Qualification Requirements
Even with a portable mortgage, borrowers must still requalify. Lenders reassess income, credit, and the new property’s value to ensure the mortgage remains suitable.
Porting With a Different Purchase Price
Many moves involve buying a home with a different price than the original property.
* Porting With a Larger Mortgage
If the new home costs more, borrowers may need to add funds to the existing mortgage. This additional amount is often set at a different interest rate, creating a blended mortgage structure.
* Porting With a Smaller Mortgage
If the new home costs less, some lenders may apply restrictions or require adjustments. Terms vary by lender, making it important to review portability conditions carefully.
Benefits and Limitations of Mortgage Portability
Mortgage portability can offer advantages, but it also has limitations that borrowers should understand.
* Potential Benefits
Portability may help borrowers keep a favourable interest rate when moving. It can also reduce the need to break a mortgage early, which may help avoid certain penalties.
* Key Limitations
Not all mortgages are portable, and timelines can be strict. Purchase and sale dates often need to align closely. Additionally, portability does not guarantee approval if financial circumstances have changed.
Exploring available mortgage solutions can help determine whether portability aligns with your broader housing plans.
Mortgage Portability and Planning Ahead
Mortgage portability is often considered during long-term planning, especially for homeowners who expect to move within a few years. Reviewing portability options early can help avoid rushed decisions later.
Some homeowners reassess portability when preparing for mortgage renewals, evaluating whether flexibility is a priority in the next mortgage term. Using available mortgage tools can also help estimate scenarios involving moves and changing property values.
For general mortgage education, borrowers may consult consumer resources from the Government of Canada, housing finance guidance from the Canada Mortgage and Housing Corporation, and interest rate context from the Bank of Canada.
Next Steps for Mortgage Planning
If you are considering a move before your mortgage term ends, speaking with a qualified SMM Mortgage advisor can help clarify portability rules, timelines, and how this option fits into your overall mortgage strategy.
Frequently Asked Questions
- 1. What is mortgage portability?
It allows an existing mortgage to be transferred from one property to another. - 2. Are all mortgages portable?
No. Portability depends on the lender and the mortgage product. - 3. Do I need to requalify to port my mortgage?
Yes. Lenders reassess income, credit, and the new property. - 4. Can I add more money when porting a mortgage?
Often yes, though the additional amount may have different terms. - 5. Does portability avoid all penalties?
Not always. Conditions and timelines must be met to avoid penalties.

