Mortgage Insurance Rule Changes Enable Homeowners to Add Secondary Suites

Diane Buchanan • 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.


DIANE BUCHANAN
 Mortgage Broker

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Bank of Canada Rate Announcement Oct 29th, 2025

By Diane Buchanan • October 29, 2025
Bank of Canada lowers policy rate to 2¼%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario October 29, 2025 The Bank of Canada today reduced its target for the overnight rate by 25 basis points to 2.25%, with the Bank Rate at 2.5% and the deposit rate at 2.20%. With the effects of US trade actions on economic growth and inflation somewhat clearer, the Bank has returned to its usual practice of providing a projection for the global and Canadian economies in this Monetary Policy Report (MPR). Because US trade policy remains unpredictable and uncertainty is still higher than normal, this projection is subject to a wider-than-usual range of risks. While the global economy has been resilient to the historic rise in US tariffs, the impact is becoming more evident. Trade relationships are being reconfigured and ongoing trade tensions are dampening investment in many countries. In the MPR projection, the global economy slows from about 3¼% in 2025 to about 3% in 2026 and 2027. In the United States, economic activity has been strong, supported by the boom in AI investment. At the same time, employment growth has slowed and tariffs have started to push up consumer prices. Growth in the euro area is decelerating due to weaker exports and slowing domestic demand. In China, lower exports to the United States have been offset by higher exports to other countries, but business investment has weakened. Global financial conditions have eased further since July and oil prices have been fairly stable. The Canadian dollar has depreciated slightly against the US dollar. Canada’s economy contracted by 1.6% in the second quarter, reflecting a drop in exports and weak business investment amid heightened uncertainty. Meanwhile, household spending grew at a healthy pace. US trade actions and related uncertainty are having severe effects on targeted sectors including autos, steel, aluminum, and lumber. As a result, GDP growth is expected to be weak in the second half of the year. Growth will get some support from rising consumer and government spending and residential investment, and then pick up gradually as exports and business investment begin to recover. Canada’s labour market remains soft. Employment gains in September followed two months of sizeable losses. Job losses continue to build in trade-sensitive sectors and hiring has been weak across the economy. The unemployment rate remained at 7.1% in September and wage growth has slowed. Slower population growth means fewer new jobs are needed to keep the employment rate steady. The Bank projects GDP will grow by 1.2% in 2025, 1.1% in 2026 and 1.6% in 2027. On a quarterly basis, growth strengthens in 2026 after a weak second half of this year. Excess capacity in the economy is expected to persist and be taken up gradually. CPI inflation was 2.4% in September, slightly higher than the Bank had anticipated. Inflation excluding taxes was 2.9%. The Bank’s preferred measures of core inflation have been sticky around 3%. Expanding the range of indicators to include alternative measures of core inflation and the distribution of price changes among CPI components suggests underlying inflation remains around 2½%. The Bank expects inflationary pressures to ease in the months ahead and CPI inflation to remain near 2% over the projection horizon. With ongoing weakness in the economy and inflation expected to remain close to the 2% target, Governing Council decided to cut the policy rate by 25 basis points. If inflation and economic activity evolve broadly in line with the October projection, Governing Council sees the current policy rate at about the right level to keep inflation close to 2% while helping the economy through this period of structural adjustment. If the outlook changes, we are prepared to respond. Governing Council will be assessing incoming data carefully relative to the Bank’s forecast. The Canadian economy faces a difficult transition. The structural damage caused by the trade conflict reduces the capacity of the economy and adds costs. This limits the role that monetary policy can play to boost demand while maintaining low inflation. The Bank is focused on ensuring that Canadians continue to have confidence in price stability through this period of global upheaval. Information note The next scheduled date for announcing the overnight rate target is December 10, 2025. The Bank’s next MPR will be released on January 28, 2026. Read the October 29th, 2025 Monetary Report

Mortgage Approval 101: GDS & TDS Explained

By Diane Buchanan • October 22, 2025
Can You Afford That Mortgage? Let’s Talk About Debt Service Ratios One of the biggest factors lenders look at when deciding whether you qualify for a mortgage is something called your debt service ratios. It’s a financial check-up to make sure you can handle the payments—not just for your new home, but for everything else you owe as well. If you’d rather skip the math and have someone walk through this with you, that’s what I’m here for. But if you like to understand how things work behind the scenes, keep reading. We’re going to break down what these ratios are, how to calculate them, and why they matter when it comes to getting approved. What Are Debt Service Ratios? Debt service ratios measure your ability to manage your financial obligations based on your income. There are two key ratios lenders care about: Gross Debt Service (GDS) This looks at the percentage of your income that would go toward housing expenses only. 2. Total Debt Service (TDS) This includes your housing costs plus all other debt payments—car loans, credit cards, student loans, support payments, etc. How to Calculate GDS and TDS Let’s break down the formulas. GDS Formula: (P + I + T + H + Condo Fees*) ÷ Gross Monthly Income Where: P = Principal I = Interest T = Property Taxes H = Heat Condo fees are usually calculated at 50% of the total amount TDS Formula: (GDS + Monthly Debt Payments) ÷ Gross Monthly Income These ratios tell lenders if your budget is already stretched too thin—or if you’ve got room to safely take on a mortgage. How High Is Too High? Most lenders follow maximum thresholds, especially for insured (high-ratio) mortgages. As of now, those limits are typically: GDS: Max 39% TDS: Max 44% Go above those numbers and your application could be declined, regardless of how confident you feel about your ability to manage the payments. Real-World Example Let’s say you’re earning $90,000 a year, or $7,500 a month. You find a home you love, and the monthly housing costs (mortgage payment, property tax, heat) total $1,700/month. GDS = $1,700 ÷ $7,500 = 22.7% You’re well under the 39% cap—so far, so good. Now factor in your other monthly obligations: Car loan: $300 Child support: $500 Credit card/line of credit payments: $700 Total other debt = $1,500/month Now add that to the $1,700 in housing costs: TDS = $3,200 ÷ $7,500 = 42.7% Uh oh. Even though your GDS looks great, your TDS is just over the 42% limit. That could put your mortgage approval at risk—even if you’re paying similar or higher rent now. What Can You Do? In cases like this, small adjustments can make a big difference: Consolidate or restructure your debts to lower monthly payments Reallocate part of your down payment to reduce high-interest debt Add a co-applicant to increase qualifying income Wait and build savings or credit strength before applying This is where working with an experienced mortgage professional pays off. We can look at your entire financial picture and help you make strategic moves to qualify confidently. Don’t Leave It to Chance Everyone’s situation is different, and debt service ratios aren’t something you want to guess at. The earlier you start the conversation, the more time you’ll have to improve your numbers and boost your chances of approval. If you're wondering how much home you can afford—or want help analyzing your own GDS and TDS—let’s connect. I’d be happy to walk through your numbers and help you build a solid mortgage strategy.