Blended Mortgage
Understand blended mortgages in Canadian real estate — what they are, when they’re used, and their advantages for borrowers.
July 27, 2025
What is a Blended Mortgage?
A blended mortgage combines two different mortgage loans or interest rates into one, resulting in a new single loan with a blended interest rate.
Why Blended Mortgages Matter in Real Estate
In Canadian mortgage financing, blended mortgages help borrowers modify financing without full refinancing, often during porting or top-up situations.
Key features:
- Mixes existing loan with new funds
- Creates an average (blended) interest rate
- May avoid penalties for breaking existing mortgage
Understanding blended mortgages helps homeowners manage changing financing needs.
Example of a Blended Mortgage in Action
The homeowner used a blended mortgage to combine their existing loan with additional funds for a home addition.
Key Takeaways
- Combines old and new mortgage loans
- Creates a blended interest rate
- Useful for adding funds or porting
- May reduce penalty costs
- Supports flexible financing

Canada residential unit sales by month, actual, 2019 and 2024-2026. Data through June 2026. Source:
Canada residential sales-to-new-listings ratio, actual, January 2025 to June 2026. Source:
Canada residential months of inventory, actual, January 2025 to June 2026. Source: Source:
Year-over-year change in residential average sale price for Canada, Ontario, British Columbia and Alberta, January 2022 to June 2026. Average price is shown here as a regional mix measure, not a substitute for HPI or local comparable sales. Source:
Year-over-year change in residential unit sales for Canada, Ontario, British Columbia and Alberta, January 2024 to June 2026. Source: 







Mattamy WideLot™ design
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'The Monarch' at Yorkville
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Renderings of the tower proposed for 15284-15296 Fleetwood Drive in Surrey. (Flat Architecture, 1098261 BC Ltd.)

Goldberg Group 
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Rendering of 525 Eglinton Avenue East/Wallman Architects

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Renderings of Mayfair West. (Grosvenor, Arcadis, Hariri Pontarini Architects)