Before You Co-Sign a Mortgage

Jeff Johnson • April 3, 2024

So you’re thinking about co-signing on a mortgage? Great, let’s talk about what that looks like. Although it’s nice to be in a position to help someone qualify for a mortgage, it’s not a decision that you should make lightly. Co-signing a mortgage could have a significant impact on your financial future. Here are some things to consider.


You’re fully responsible for the mortgage.


Regardless if you’re the principal borrower, co-borrower, or co-signor, if your name is on the mortgage, you are 100% responsible for the debt of the mortgage. Although the term co-signor makes it sound like you’re somehow removed from the actual mortgage, you have all the same legal obligations as everyone else on the mortgage. When you co-sign for a mortgage, you guarantee that the mortgage payments will be made, even if you aren’t the one making them.


So, if the primary applicant cannot make the payments for whatever reason, you’ll be expected to make them on their behalf. If payments aren’t made, and the mortgage goes into default, the lender will take legal action. This could negatively impact your credit score. So it’s an excellent idea to make sure you trust the primary applicant or have a way to monitor that payments are, in fact, being made so that you don’t end up in a bad financial situation.

 

You’re on the mortgage until they can qualify to remove you.


Once the initial mortgage term has been completed, you won’t be automatically removed from the mortgage. The primary applicant will have to make a new application in their own name and qualify for the mortgage on their own merit. If they don’t qualify, you’ll be kept on the mortgage for the next term.


So before co-signing, it’s a good idea to discuss how long you can expect your name will be on the mortgage. Having a clear and open conversation with the primary applicant and your independent mortgage professional will help outline expectations.


Co-signing a mortgage impacts your debt service ratio.


When you co-sign for a mortgage, all of the debt of the co-signed mortgage is counted in your debt service ratios. This means that if you’re looking to qualify for another mortgage in the future, you’ll have to include the payments of the co-signed mortgage in those calculations, even though you aren’t the one making the payments directly.


As this could significantly impact the amount you could borrow in the future, before you co-sign a mortgage, you’ll want to assess your financial future and decide if co-signing makes sense.


Co-signing a mortgage means helping someone get ahead.


While there are certainly things to consider when agreeing to co-sign on a mortgage application, chances are, by being a co-signor, you'll be helping someone you care for get ahead in life. The key to co-signing well is to outline expectations and over-communicate through the mortgage process.


If you have any questions about co-signing on a mortgage or about the mortgage application process in general, please connect anytime. It would be a pleasure to work with you.

Jeff Johnson

Mortgage Expert

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Bank of Canada Rate Announcement Sept 17th, 2025

By Jeff Johnson • September 17, 2025
Bank of Canada lowers policy rate to 2½%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario September 17, 2025 The Bank of Canada today reduced its target for the overnight rate by 25 basis points to 2.5%, with the Bank Rate at 2.75% and the deposit rate at 2.45%. After remaining resilient to sharply higher US tariffs and ongoing uncertainty, global economic growth is showing signs of slowing. In the United States, business investment has been strong but consumers are cautious and employment gains have slowed. US inflation has picked up in recent months as businesses appear to be passing on some tariff costs to consumer prices. Growth in the euro area has moderated as US tariffs affect trade. China’s economy held up in the first half of the year but growth appears to be softening as investment weakens. Global oil prices are close to their levels assumed in the July Monetary Policy Report (MPR). Financial conditions have eased further, with higher equity prices and lower bond yields. Canada’s exchange rate has been stable relative to the US dollar. Canada’s GDP declined by about 1½% in the second quarter, as expected, with tariffs and trade uncertainty weighing heavily on economic activity. Exports fell by 27% in the second quarter, a sharp reversal from first-quarter gains when companies were rushing orders to get ahead of tariffs. Business investment also declined in the second quarter. Consumption and housing activity both grew at a healthy pace. In the months ahead, slow population growth and the weakness in the labour market will likely weigh on household spending. Employment has declined in the past two months since the Bank’s July MPR was published. Job losses have largely been concentrated in trade-sensitive sectors, while employment growth in the rest of the economy has slowed, reflecting weak hiring intentions. The unemployment rate has moved up since March, hitting 7.1% in August, and wage growth has continued to ease. CPI inflation was 1.9% in August, the same as at the time of the July MPR. Excluding taxes, inflation was 2.4%. Preferred measures of core inflation have been around 3% in recent months, but on a monthly basis the upward momentum seen earlier this year has dissipated. A broader range of indicators, including alternative measures of core inflation and the distribution of price changes across CPI components, continue to suggest underlying inflation is running around 2½%. The federal government’s recent decision to remove most retaliatory tariffs on imported goods from the US will mean less upward pressure on the prices of these goods going forward. With a weaker economy and less upside risk to inflation, Governing Council judged that a reduction in the policy rate was appropriate to better balance the risks. Looking ahead, the disruptive effects of shifts in trade will continue to add costs even as they weigh on economic activity. Governing Council is proceeding carefully, with particular attention to the risks and uncertainties. Governing Council will be assessing how exports evolve in the face of US tariffs and changing trade relationships; how much this spills over into business investment, employment, and household spending; how the cost effects of trade disruptions and reconfigured supply chains are passed on to consumer prices; and how inflation expectations evolve. The Bank is 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 October 29, 2025. The Bank’s October Monetary Policy Report will be released at the same time.

Mortgage Approval 101: GDS & TDS Explained

By Jeff Johnson • September 10, 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.