What You Need To Know About Co-Signing A Mortgage

Tim Lyon • May 16, 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.


Tim Lyon

Mortgage Consultant

Your Guide to Successfully Navigating the Housing Market

By Tim Lyon • September 18, 2025
Wondering If Now’s the Right Time to Buy a Home? Start With These Questions Instead. Whether you're looking to buy your first home, move into something bigger, downsize, or find that perfect place to retire, it’s normal to feel unsure—especially with all the noise in the news about the economy and the housing market. The truth is, even in the most stable times, predicting the “perfect” time to buy a home is incredibly hard. The market will always have its ups and downs, and the headlines will never give you the full story. So instead of trying to time the market, here’s a different approach: Focus on your personal readiness—because that’s what truly matters. Here are some key questions to reflect on that can help bring clarity: Would owning a home right now put me in a stronger financial position in the long run? Can I comfortably afford a mortgage while maintaining the lifestyle I want? Is my job or income stable enough to support a new home? Do I have enough saved for a down payment, closing costs, and a little buffer? How long do I plan to stay in the property? If I had to sell earlier than planned, would I be financially okay? Will buying a home now support my long-term goals? Am I ready because I want to buy, or because I feel pressure to act quickly? Am I hesitating because of market fears, or do I have legitimate concerns? These are personal questions, not market ones—and that’s the point. The economy might change tomorrow, but your answers today can guide you toward a decision that actually fits your life. Here’s How I Can Help Buying a home doesn’t have to be stressful when you have a plan and someone to guide you through it. If you want to explore your options, talk through your goals, or just get a better sense of what’s possible, I’m here to help. The best place to start? A mortgage pre-approval . It’s free, it doesn’t lock you into anything, and it gives you a clear picture of what you can afford—so you can move forward with confidence, whether that means buying now or waiting. You don’t have to figure this out alone. If you’re curious, let’s talk. Together, we can map out a homebuying plan that works for you.

Purchase Plus Improvements

By Tim Lyon • September 11, 2025
The best place to start the mortgage process is with a pre-approval. But once you’ve been pre-approved for a mortgage and you’ve been shopping with location in mind, what happens when you can’t find a suitable property? There's no doubt about it; finding the perfect property within your price range is a difficult task, especially for first-time homebuyers. So, before buyer’s fatigue sets in, maybe you should consider adding the cost of renovations into your purchase. Buying a property and including the cost of renovations into the mortgage is available through a program called purchase plus improvements. When purchasing a home, you can add the cost of home upgrades into your mortgage, making it a great option if you can’t find something move-in ready and aren’t afraid to do a little work! But while this sounds simple enough, in all honestly, it’s quite the process. There are some pretty strict rules to follow, but nothing that you can’t handle with the guidance of an independent mortgage professional. Here’s a quick overview of the process. Firstly, you must provide quotes to the lender ahead of time for the work you would like to complete. It’s good to note that the renovations will have to increase the value of the property accordingly. From there, the lender doesn’t give you the money to do the upgrades; you have to come up with that yourself. However, once the work has been completed and verified by an appraiser, the lender will reimburse you and include the money in your mortgage. This program isn’t for everyone. Buying a home is a stressful endeavour in and of itself. The added stress of having to undertake renovations right away might not be a good idea. But then again, if you have the financial wherewithal to handle the cost of renovations and like the idea of making it yours from the start, then this might be just the option you’ve been looking for! Please connect directly; it would be a pleasure to walk through the exact process and outline what securing a purchase plus improvements would look like for you!