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

Team Gill • October 18, 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.


Share

Sign up to to our newsletter to hear weekly updates on market news, timely buyer/seller tips, and up to date rates

SIGN UP
Mick & Sheila Gill
CANADIAN MORTGAGE EXPERTS
RECENT POSTS 

Mortgage Approval 101: GDS & TDS Explained

By Team Gill • December 16, 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. 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.

Home Reno Dreams? Let’s Talk Mortgage Financing

By Team Gill • December 9, 2025
How to Use Your Mortgage to Finance Home Renovations Home renovations can be exciting—but they can also be expensive. Whether you're upgrading your kitchen, finishing the basement, or tackling a much-needed repair, the cost of materials and labour adds up quickly. If you don’t have all the cash on hand, don’t worry. There are smart ways to use mortgage financing to fund your renovation plans without derailing your financial stability. Here are three mortgage-related strategies that can help: 1. Refinancing Your Mortgage If you're already a homeowner, one of the most straightforward ways to access funds for renovations is through a mortgage refinance. This involves breaking your current mortgage and replacing it with a new one that includes the amount you need for your renovations. Key benefits: You can access up to 80% of your home’s appraised value , assuming you qualify. It may be possible to lower your interest rate or reduce your monthly payments. Timing tip: If your mortgage is up for renewal soon, refinancing at that time can help you avoid prepayment penalties. Even mid-term refinancing could make financial sense, depending on your existing rate and your renovation goals. 2. Home Equity Line of Credit (HELOC) If you have significant equity in your home, a Home Equity Line of Credit (HELOC) can offer flexible funding for renovations. A HELOC is a revolving credit line secured against your home, typically at a lower interest rate than unsecured borrowing. Why consider a HELOC? You only pay interest on the amount you use. You can access funds as needed, which is ideal for staged or ongoing renovations. You maintain the terms of your existing mortgage if you don’t want to refinance. Unlike a traditional loan, a HELOC allows you to borrow, repay, and borrow again—similar to how a credit card works, but with much lower rates. 3. Purchase Plus Improvements Mortgage If you're in the market for a new home and find a property that needs some work, a "Purchase Plus Improvements" mortgage could be a great option. This allows you to include renovation costs in your initial mortgage. How it works: The renovation funds are advanced based on a quote and are held in trust until the work is complete. The renovations must add value to the property and meet lender requirements. This type of mortgage lets you start with a home that might be more affordable upfront and customize it to your taste—all while building equity from day one. Final Thoughts Your home is likely your biggest investment, and upgrading it wisely can enhance both your comfort and its value. Mortgage financing can be a powerful tool to fund renovations without tapping into high-interest debt. The right solution depends on your unique financial situation, goals, and timing. Let’s chat about your options, run the numbers, and create a plan that works for you. 📞 Ready to renovate? Connect anytime to get started!