Before You Co-Sign a Mortgage

Katherine Martin • January 31, 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.


Katherine Martin


Origin Mortgages

Phone: 1-604-454-0843
Email: 
kmartin@planmymortgage.ca
Fax: 1-604-454-0842


RECENT POSTS

By Katherine Martin February 4, 2026
Owning a vacation home or an investment rental property is a dream for many Canadians. Whether it’s a cottage on the lake for family getaways or a rental unit to generate extra income, real estate can be both a lifestyle choice and a smart financial move. But before you dive in, it’s important to know what lenders look for when financing these types of properties. 1. Down Payment Requirements The biggest difference between buying a primary residence and a vacation or rental property is the down payment. Vacation property (owner-occupied, seasonal, or secondary home): Typically requires at least 5–10% down, depending on the lender and whether the property is winterized and accessible year-round. Rental property: Usually requires a minimum of 20% down. This is because rental income can fluctuate, and lenders want extra security before approving financing. 2. Property Type & Location Not all properties qualify for traditional mortgage financing. Lenders consider: Accessibility : Is the property accessible year-round (roads maintained, utilities available)? Condition : Seasonal or non-winterized cottages may not meet standard lending criteria. Zoning & Use : If it’s a rental, lenders want to ensure it complies with municipal bylaws and zoning regulations. Properties that fall outside these norms may require financing through alternative lenders, often with higher rates but more flexibility. 3. Rental Income Considerations If you’re buying a property with the intent to rent it out, lenders may factor the rental income into your mortgage application. Long-term rentals : Lenders typically accept 50–80% of the expected rental income when calculating your debt-service ratios. Short-term rentals (Airbnb, VRBO, etc.) : Many traditional lenders are cautious about using projected income from short-term rentals. Alternative lenders may be more flexible, depending on the property’s location and your financial profile. 4. Debt-Service Ratios Lenders use your Gross Debt Service (GDS) and Total Debt Service (TDS) ratios to determine if you can handle the mortgage payments alongside your other obligations. With investment or vacation properties, lenders may apply stricter guidelines, especially if your primary residence already carries a large mortgage. 5. Credit & Financial Stability Your credit score, employment history, and overall financial health still matter. Since vacation and rental properties are considered higher risk, lenders want reassurance that you can handle the additional debt—even if rental income fluctuates or the property sits vacant. 6. Insurance Requirements Rental properties often require specialized landlord insurance, and vacation homes may need coverage tailored to seasonal or secondary use. Lenders will want proof of adequate insurance before releasing mortgage funds. The Bottom Line Buying a vacation property or rental can be exciting, but financing these purchases comes with extra rules and considerations. From higher down payments to stricter property requirements, lenders want to be confident that you can handle the responsibility. If you’re considering a second property, the best step is to work with a mortgage professional who can compare lender requirements, outline your options, and find the financing that works best for you. Thinking about making your dream of a vacation or rental property a reality? Connect with us today.
By Katherine Martin January 28, 2026
Bank of Canada maintains policy rate at 2¼%. FOR IMMEDIATE RELEASE Media Relations Ottawa, Ontario January 28, 2026 The Bank of Canada today held its target for the overnight rate at 2.25%, with the Bank Rate at 2.5% and the deposit rate at 2.20%. The outlook for the global and Canadian economies is little changed relative to the projection in the October Monetary Policy Report (MPR). However, the outlook is vulnerable to unpredictable US trade policies and geopolitical risks. Economic growth in the United States continues to outpace expectations and is projected to remain solid, driven by AI-related investment and consumer spending. Tariffs are pushing up US inflation, although their effect is expected to fade gradually later this year. In the euro area, growth has been supported by activity in service sectors and will get additional support from fiscal policy. China’s GDP growth is expected to slow gradually, as weakening domestic demand offsets strength in exports. Overall, the Bank expects global growth to average about 3% over the projection horizon. Global financial conditions have remained accommodative overall. Recent weakness in the US dollar has pushed the Canadian dollar above 72 cents, roughly where it had been since the October MPR. Oil prices have been fluctuating in response to geopolitical events and, going forward, are assumed to be slightly below the levels in the October report. US trade restrictions and uncertainty continue to disrupt growth in Canada. After a strong third quarter, GDP growth in the fourth quarter likely stalled. Exports continue to be buffeted by US tariffs, while domestic demand appears to be picking up. Employment has risen in recent months. Still, the unemployment rate remains elevated at 6.8% and relatively few businesses say they plan to hire more workers. Economic growth is projected to be modest in the near term as population growth slows and Canada adjusts to US protectionism. In the projection, consumer spending holds up and business investment strengthens gradually, with fiscal policy providing some support. The Bank projects growth of 1.1% in 2026 and 1.5% in 2027, broadly in line with the October projection. A key source of uncertainty is the upcoming review of the Canada-US-Mexico Agreement. CPI inflation picked up in December to 2.4%, boosted by base-year effects linked to last winter’s GST/HST holiday. Excluding the effect of changes in taxes, inflation has been slowing since September. The Bank’s preferred measures of core inflation have eased from 3% in October to around 2½% in December. Inflation was 2.1% in 2025 and the Bank expects inflation to stay close to the 2% target over the projection period, with trade-related cost pressures offset by excess supply. Monetary policy is focused on keeping inflation close to the 2% target while helping the economy through this period of structural adjustment. Governing Council judges the current policy rate remains appropriate, conditional on the economy evolving broadly in line with the outlook we published today. However, uncertainty is heightened and we are monitoring risks closely. If the outlook changes, we are prepared to respond. The Bank is committed to 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 March 18, 2026. The Bank’s next MPR will be released on April 29, 2026. Read the January 28th, 2026 Monetary Report