Mortgage Insurance Rule Changes Enable Homeowners to Add Secondary Suites

Carmelo Mamertino • January 2, 2025

As housing affordability challenges persist across Canada, innovative solutions are reshaping the way homeowners can contribute to housing supply. Starting January 15, 2025, new mortgage insurance rule changes will allow Canadian homeowners to access insured refinancing options to create secondary suites, such as basement apartments or laneway homes.


This move, announced in Budget 2024 and detailed by the Department of Finance Canada, is part of a broader strategy to increase housing density and improve affordability while offering homeowners the chance to generate additional income.


Why These Changes Matter

Historically, converting extra space into rental units has been both costly and mired in municipal red tape. Recent zoning reforms across Canada’s major cities, driven by Housing Accelerator Fund agreements, are reducing these barriers. The creation of secondary suites not only expands housing supply but also provides financial benefits to homeowners, such as offering seniors additional income to support aging in place.


Key Parameters for the New Rules

The new mortgage insurance program is designed to enable homeowners to build legal, self-contained secondary suites that comply with municipal requirements.


Here are the essential details:

Eligibility Requirements

Homeowners must already own the property.

The homeowner or a close relative must occupy one of the existing units.

Additional units must not be used as short-term rentals.


Project Specifications

New units must be fully self-contained with separate entrances (e.g., basement suites, laneway homes).

Up to four total dwelling units are allowed, including existing units.


Financial Parameters

The “as improved” property value must be less than $2 million.

Homeowners can refinance up to 90% of the property’s value, including the enhanced value from secondary suites.

The maximum amortization period is 30 years.

Additional financing must not exceed the project’s costs.


When Do These Rules Take Effect?

Starting January 15, 2025, lenders can submit applications for mortgage insurance under these updated parameters. This applies to all eligible properties across Canada, provided the new units align with municipal zoning requirements.


What This Means for Homeowners

For homeowners with underutilized space, such as basements or detached garages, this new program offers an opportunity to increase property value and create a source of long-term income. By building legal secondary suites, homeowners can contribute to Canada’s rental housing market while gaining financial security.


A Step Toward Housing Solutions

As housing supply remains a pressing issue, these mortgage insurance changes reflect a commitment to practical, homeowner-driven solutions. Whether you’re a senior looking to age in place or a family seeking to maximize your property’s potential, these changes represent an exciting opportunity to invest in your home and your community.

Stay informed and explore your options with your lender to determine if this program is right for you. The path to unlocking your property’s potential begins in 2025.



Carmelo Mamertino
By Carmelo Mamertino July 30, 2025
Bank of Canada holds policy rate at 2¾%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario July 30, 2025 The Bank of Canada today maintained its target for the overnight rate at 2.75%, with the Bank Rate at 3% and the deposit rate at 2.70%.  While some elements of US trade policy have started to become more concrete in recent weeks, trade negotiations are fluid, threats of new sectoral tariffs continue, and US trade actions remain unpredictable. Against this backdrop, the July Monetary Policy Report (MPR) does not present conventional base case projections for GDP growth and inflation in Canada and globally. Instead, it presents a current tariff scenario based on tariffs in place or agreed as of July 27, and two alternative scenarios—one with an escalation and another with a de-escalation of tariffs. While US tariffs have created volatility in global trade, the global economy has been reasonably resilient. In the United States, the pace of growth moderated in the first half of 2025, but the labour market has remained solid. US CPI inflation ticked up in June with some evidence that tariffs are starting to be passed on to consumer prices. The euro area economy grew modestly in the first half of the year. In China, the decline in exports to the United States has been largely offset by an increase in exports to the rest of the world. Global oil prices are close to their levels in April despite some volatility. Global equity markets have risen, and corporate credit spreads have narrowed. Longer-term government bond yields have moved up. Canada’s exchange rate has appreciated against a broadly weaker US dollar. The current tariff scenario has global growth slowing modestly to around 2½% by the end of 2025 before returning to around 3% over 2026 and 2027. In Canada, US tariffs are disrupting trade but overall, the economy is showing some resilience so far. After robust growth in the first quarter of 2025 due to a pull-forward in exports to get ahead of tariffs, GDP likely declined by about 1.5% in the second quarter. This contraction is mostly due to a sharp reversal in exports following the pull-forward, as well as lower US demand for Canadian goods due to tariffs. Growth in business and household spending is being restrained by uncertainty. Labour market conditions have weakened in sectors affected by trade, but employment has held up in other parts of the economy. The unemployment rate has moved up gradually since the beginning of the year to 6.9% in June and wage growth has continued to ease. A number of economic indicators suggest excess supply in the economy has increased since January. In the current tariff scenario, after contracting in the second quarter, GDP growth picks up to about 1% in the second half of this year as exports stabilize and household spending increases gradually. In this scenario, economic slack persists in 2026 and diminishes as growth picks up to close to 2% in 2027. In the de-escalation scenario, economic growth rebounds faster, while in the escalation scenario, the economy contracts through the rest of this year. CPI inflation was 1.9% in June, up slightly from the previous month. Excluding taxes, inflation rose to 2.5% in June, up from around 2% in the second half of last year. This largely reflects an increase in non-energy goods prices. High shelter price inflation remains the main contributor to overall inflation, but it continues to ease. Based on a range of indicators, underlying inflation is assessed to be around 2½%. In the current tariff scenario, total inflation stays close to 2% over the scenario horizon as the upward and downward pressures on inflation roughly offset. There are risks around this inflation scenario. As the alternative scenarios illustrate, lower tariffs would reduce the direct upward pressure on inflation and higher tariffs would increase it. In addition, many businesses are reporting costs related to sourcing new suppliers and developing new markets. These costs could add upward pressure to consumer prices. With still high uncertainty, the Canadian economy showing some resilience, and ongoing pressures on underlying inflation, Governing Council decided to hold the policy interest rate unchanged. We will continue to assess the timing and strength of both the downward pressures on inflation from a weaker economy and the upward pressures on inflation from higher costs related to tariffs and the reconfiguration of trade. If a weakening economy puts further downward pressure on inflation and the upward price pressures from the trade disruptions are contained, there may be a need for a reduction in the policy interest rate. Governing Council is proceeding carefully, with particular attention to the risks and uncertainties facing the Canadian economy. These include: the extent to which higher US tariffs reduce demand for Canadian exports; how much this spills over into business investment, employment and household spending; how much and how quickly cost increases from tariffs and trade disruptions are passed on to consumer prices; and how inflation expectations evolve. We are focused on ensuring that Canadians continue to have confidence in price stability through this period of global upheaval. We will support economic growth while ensuring inflation remains well controlled. Information note The next scheduled date for announcing the overnight rate target is September 17, 2025. Read the July 30th., 2025 Monetary Report
By Carmelo Mamertino July 23, 2025
If you’re like most Canadians, chances are you don’t have enough money in the bank to buy a property outright. So, you need a mortgage. When you’re ready, it would be a pleasure to help you assess and secure the best mortgage available. But until then, here’s some information on what to consider when selecting the best mortgage to lower your overall cost of borrowing. When getting a mortgage, the property you own is held as collateral and interest is charged on the money you’ve borrowed. Your mortgage will be paid back over a defined period of time, usually 25 years; this is called amortization. Your amortization is then broken into terms that outline the interest cost varying in length from 6 months to 10 years. From there, each mortgage will have a list of features that outline the terms of the mortgage. When assessing the suitability of a mortgage, your number one goal should be to keep your cost of borrowing as low as possible. And contrary to conventional wisdom, this doesn’t always mean choosing the mortgage with the lowest rate. It means thinking through your financial and life situation and choosing the mortgage that best suits your needs. Choosing a mortgage with a low rate is a part of lowering your borrowing costs, but it’s certainly not the only factor. There are many other factors to consider; here are a few of them: How long do you anticipate living in the property? This will help you decide on an appropriate term. Do you plan on moving for work, or do you need the flexibility to move in the future? This could help you decide if portability is important to you. What does the prepayment penalty look like if you have to break your term? This is probably the biggest factor in lowering your overall cost of borrowing. How is the lender’s interest rate differential calculated, what figures do they use? This is very tough to figure out on your own. Get help. What are the prepayment privileges? If you’d like to pay down your mortgage faster. How is the mortgage registered on the title? This could impact your ability to switch to another lender upon renewal without incurring new legal costs, or it could mean increased flexibility down the line. Should you consider a fixed rate, variable rate, HELOC, or a reverse mortgage? There are many different types of mortgages; each has its own pros and cons. What is the size of your downpayment? Coming up with more money down might lower (or eliminate) mortgage insurance premiums, saving you thousands of dollars. So again, while the interest rate is important, it’s certainly not the only consideration when assessing the suitability of a mortgage. Obviously, the conversation is so much more than just the lowest rate. The best advice is to work with an independent mortgage professional who has your best interest in mind and knows exactly how to keep your cost of borrowing as low as possible. You will often find that mortgages with the rock bottom, lowest rates, can have potential hidden costs built in to the mortgage terms that will cost you a lot of money down the road. Sure, a rate that is 0.10% lower could save you a few dollars a month in payments, but if the mortgage is restrictive, breaking the mortgage halfway through the term could cost you thousands or tens of thousands of dollars. Which obviously negates any interest saved in going with a lower rate. It would be a pleasure to walk you through the fine print of mortgage financing to ensure you can secure the best mortgage with the lowest overall cost of borrowing, given your financial and life situation. Please connect anytime!