Co-Signing a Mortgage in Canada: Pros, Cons & What to Expect

Josh Perez • May 20, 2026

Co-Signing a Mortgage in Canada: Pros, Cons & What to Expect

Thinking about co-signing a mortgage? On the surface, it might seem like a simple way to help someone you care about achieve homeownership. But before you sign on the dotted line, it’s important to understand exactly what co-signing means—for them and for you.


You’re Fully Responsible

When you co-sign, your name is on the mortgage—and that makes you just as responsible as the primary borrower. If payments are missed, the lender won’t only go after them; they’ll come after you too. Missed payments or default can damage your credit score and put your financial health at risk.


That’s why trust is key. If you’re going to co-sign, make sure you have a clear picture of the borrower’s ability to manage payments—and consider monitoring the account to protect yourself.


You’re Committed Until They Can Stand Alone

Co-signing isn’t temporary by default. Even once the initial mortgage term ends, you won’t automatically be removed. The borrower has to re-qualify on their own, and only then can your name be taken off. If they don’t qualify, you stay on the mortgage for another term.


Before agreeing, talk openly about expectations: How long might you be on the mortgage? What’s the plan for eventually removing you? Having these conversations upfront prevents surprises later.


It Affects Your Own Borrowing Power

When lenders calculate your debt service ratios, the co-signed mortgage counts as your debt—even if you never make a payment on it. This could reduce how much you’re able to borrow in the future, whether it’s for your own home, an investment property, or even refinancing.

If you see another mortgage in your future, you’ll want to consider how co-signing could limit your options.


The Upside: Helping Someone Get Ahead

On the positive side, co-signing can be life-changing for the borrower. You could be helping a family member or friend buy their first home, start building equity, or take an important step forward financially. If handled with clear expectations and trust, it can be a meaningful way to support someone you care about.


The Bottom Line

Co-signing a mortgage comes with both risks and rewards. It’s not a decision to take lightly, but with careful planning, transparency, and professional advice, it can be done responsibly.


If you’re considering co-signing—or want to explore safer alternatives—let’s connect. I’d be happy to walk you through what to expect and help you decide if it’s the right move for you.


Josh Perez
GET STARTED
By Josh Perez July 8, 2026
If the title of this article caught your attention, chances are your family is growing. Congratulations. If you’re thinking now is the right time to move into a home that better fits your growing family—but you’re unsure how parental leave affects your ability to qualify for a mortgage—you’re in the right place. Here’s the good news. Qualifying for a mortgage while on parental leave is possible when it’s done correctly. When you work with an independent mortgage professional, lenders can often qualify you based on your return-to-work income , as long as you can provide documentation confirming you have guaranteed employment waiting for you. A word of caution If you walk into a bank branch and disclose that you’re currently on parental leave, there’s a chance the bank will only allow you to qualify using your parental leave income. That can significantly reduce your borrowing power. Parental leave income is typically limited to 55% of your previous earnings, up to a weekly maximum. Qualifying on that amount alone can restrict your options and impact the type of home you can purchase. Why lender choice matters One of the biggest advantages of working with an independent mortgage professional is choice . You’re not limited to one lender’s rules or products. Some lenders will allow you to qualify using 100% of your confirmed return-to-work income , which can make a meaningful difference in your approval amount and overall options. What you’ll need to qualify Most lenders will require an employment letter that includes: Employer name (preferably on company letterhead) Your job title Original start date (to confirm probation has been completed) Confirmed return-to-work date Guaranteed salary upon return Lenders want reassurance that your income will resume once parental leave ends. You may also be asked to provide income history from the past couple of years, which is standard for most mortgage applications. One important note Whether or not you actually return to work after parental leave is entirely your decision. From a mortgage perspective, qualification is based on having a confirmed position available to you at the time of approval. If you have questions about qualifying for a mortgage while on parental leave—or anything mortgage-related—please connect anytime. I’d be happy to walk you through your options and help you plan with confidence.
Suburban two-story house with a front porch, two-car garage, and a large tree-lined lawn.
By Josh Perz July 7, 2026
Using a gifted down payment to buy a home in Ontario? Learn exactly what lenders require — and the common mistakes that can delay or derail your approval.