What You Need To Know About Co-Signing A Mortgage

Tim Lacroix • 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.


Tim Lacroix

Mortgage Broker

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By Tim Lacroix September 10, 2025
When arranging mortgage financing, your mortgage lender will register your mortgage in one of two ways. Either with a standard charge mortgage or a collateral charge mortgage. Let’s look at the differences between the two. Standard charge mortgage This is your good old-fashioned mortgage. A standard charge mortgage is the mortgage you most likely think about when you consider mortgage financing. Here, the amount you borrow from the lender is the amount that is registered against the title to protect the lender if you default on your mortgage. When your mortgage term is up, you can either renew your existing mortgage or, if it makes more financial sense, you can switch your mortgage to another lender. As long as you aren’t changing any of the fine print, the new lender will usually cover the cost of the switch. A standard charge mortgage has set terms and is non-advanceable. This means that if you need to borrow more money, you'll need to reapply and requalify for a new mortgage. So there will be costs associated with breaking your existing mortgage and costs to register a new one. Collateral charge mortgage A collateral charge mortgage is a mortgage that can have multiple parts, usually with a re-advanceable component. It can include many different financing options like a personal loan or line of credit. Your mortgage is registered against the title in a way that should you need to borrow more money down the line; you can do so fairly easily. A home equity line of credit is a good example of a collateral charge mortgage. Unlike a standard charge mortgage, here, your lender will register a higher amount than what you actually borrow. This could be for the property's full value, or some lenders will go up to 125% of your property's value. In the future, if the value of your property appreciates, with a collateral charge mortgage, you don't have to rewrite your existing mortgage to borrow more money (assuming you qualify). This will save you from any costs associated with breaking your existing mortgage and registering a new one. However, if you’re looking to switch your mortgage to another lender at the end of your term, you might be forced to discharge your mortgage and incur legal fees. Also, by registering your mortgage with a collateral charge, you potentially limit your ability to secure a second mortgage. So what’s a better option for you? Well, there are benefits and drawbacks to both. Finding the best option for you really depends on your financial situation and what you believe gives you the most flexibility. This is probably a question better handled in a conversation rather than in an article. With that said, undoubtedly, the best option is to work with an independent mortgage professional. It’s our job to understand the intricacies of mortgage financing, listen to and assess your needs, and recommend the best mortgage to meet your needs. As we work with many lenders, we can provide you with options. Don’t get stuck dealing with a single institution that may only offer you a collateral charge mortgage when what you need is a standard charge mortgage. So if you’d like to have a conversation about mortgage financing, please get in touch. It would be a pleasure to work with you and answer any questions you might have.
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