New 2025 Program Allows Homeowners to Refinance Up to 90% for Secondary Suites: What You Need to Know

Darrell McCollom • October 19, 2024

On October 8, 2024, the government announced a new program that will take effect on January 15, 2025, allowing homeowners to refinance up to 90% of their home’s value to create secondary suites. This is a significant increase from the current refinancing limit of 80%. The program aims to provide homeowners with more flexibility to unlock their home equity and add additional legal units like basement suites or laneway homes, provided they meet municipal zoning requirements and are not used for short-term rentals.


The program comes with specific guidelines, outlined by CMHC (Canada Mortgage and Housing Corporation), that include:

  • Eligibility: Homeowners must already own their property, live in one of the existing units, and plan to add additional fully self-contained suites.
  • Refinancing Details: Homeowners can refinance up to 90% of the property's value, including the value added by the new units. The maximum property value, once the new units are built, must not exceed $2 million.
  • Loan Parameters: The loan-to-value limit will be 90%, and the maximum amortization period is 30 years. Any additional financing must not exceed project costs.


To give an example, under this new program, if a home is valued at $800,000, homeowners could now refinance up to $720,000 for building a secondary suite—$80,000 more than the previous limit of $640,000.


This program could be particularly beneficial for homeowners who have recently purchased their property and built up a moderate amount of equity, offering them an opportunity to create an income-generating suite or expand their home without needing to sell. As housing affordability continues to be a pressing issue in many parts of Canada, adding secondary suites could also contribute to easing the rental supply shortage.


While this program represents a significant step forward in unlocking home equity for homeowners, we are still awaiting specific guidelines from lenders. These rules will clarify how lenders will approach refinancing applications under this program. Stay tuned for further updates as more information becomes available from financial institutions.


This program is expected to spark significant interest, particularly from younger homeowners or those with growing families, as it offers a pathway to enhance both living space and long-term financial stability. Homeowners looking to leverage this new opportunity should consult with mortgage experts to fully understand the potential benefits and ensure they are making informed decisions.


If you're interested in how this program could benefit you or want to explore refinancing options to add a secondary suite, get in touch with a mortgage professional today.


Darrell McCollum
By Darrell McCollom • October 28, 2026
On October 28, 2026, the Bank of Canada raised its key interest rate by 0.25%, bringing it to 2.5%. If you have a mortgage, are shopping for a home, or have a renewal coming up, this decision matters. Here is a plain-language look at what changed, why it happened, and what it could mean for you.
By Darrell McCollom • October 21, 2026
Porting Your Mortgage: What You Need to Know Before You Rely on It Porting a mortgage means transferring your existing interest rate, remaining term, and outstanding balance from your current home to a new one when you sell and buy again. While some lenders—especially big banks—make porting sound simple, the reality is that porting a mortgage is often complex and far from guaranteed . It’s not a magic solution, and it doesn’t mean you automatically get to keep your old mortgage on your new home. In many ways, porting a mortgage feels like applying for a brand-new one—often with more conditions . Here’s why. 1. You Still Have to Re-Qualify Even though you already have the mortgage, the lender will reassess you. If you: Changed jobs Moved to a new city Are on probation Switched industries or income types …the lender may decline the port. Your previous approval does not carry over automatically. 2. The New Property Must Be Approved The lender also reassesses the new property . Just because they accepted your previous home as collateral doesn’t mean they’ll approve the next one. Expect: A new appraisal A review of the property’s condition Scrutiny around marketability and value If the lender isn’t comfortable with the property, the port can fail. 3. Property Values Rarely Line Up Perfectly Most moves involve a price difference. Buying a more expensive home: You’ll likely need additional funds at a blended rate, which can increase your payment. Buying a less expensive home: You may face a penalty for reducing the mortgage balance. Either scenario can affect your costs. 4. You Still Need a Down Payment Porting doesn’t mean you “swap houses” without cash. You still need: A down payment on the new purchase Closing costs Funds available at the right time This often surprises buyers. 5. Penalties Usually Still Apply (At First) Most lenders: Charge the full mortgage penalty when you sell Refund it only after the port is successfully completed If you’re relying on sale proceeds for your down payment, this temporary penalty can create a cash-flow issue. 6. Timelines Rarely Line Up Perfectly Real estate markets don’t cooperate. You might: Sell quickly but struggle to buy Find a home quickly but wait months to sell Closing dates rarely align, which complicates porting even further. 7. Port Periods Vary by Lender This is where the fine print matters. Depending on the lender, the port window may be: Same day only 30 days 90 days Up to 6 months If the port window is short, both transactions must close within that timeframe—or the port fails. Longer port periods offer flexibility, but also carry the risk of selling first and not finding a replacement property in time. The Bottom Line Porting your mortgage can make sense—especially if you have a strong rate and are buying a similar-priced home. But it is not guaranteed , and it comes with conditions, risks, and timing challenges. Portability is a feature, not a promise. Before you rely on it, it’s important to review all your options , including whether staying with your lender actually makes financial sense. If you’re planning to sell and buy, I’d be happy to walk you through the process, explain your options clearly, and help you decide whether porting is the right move—or if another strategy makes more sense.