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

Mortgage Renewal vs. Refinance: Understanding the Key Differences

By Tim Lyon • November 25, 2025
If you own a property with a mortgage, you've probably heard the terms "renewal" and "refinance" thrown around. While both involve obtaining a new term for your mortgage, there are some important differences to understand. Let's break down what each one means and when you might use them. Understanding Mortgage Basics In Canada, when you take out a mortgage, the payments are typically spread over 25 to 30 years. This period is known as the amortization. However, unlike in the U.S., Canadians do not keep the same interest rate and payment terms for the entire amortization period. Instead, you have an initial term, usually 3 to 5 years, after which you need to renew into a new term. For example, if you have a 25-year mortgage with 5-year terms, you will need to renew your mortgage four times throughout its lifespan. It's also common to have a mix of different term lengths over the course of your mortgage. What is a Mortgage Renewal? A mortgage renewal occurs at the end of your mortgage term. When you renew, you start a new term with a new interest rate while keeping the remaining details of your mortgage the same. The key element here is that the mortgage charge registered on your property's title remains unchanged. A renewal is straightforward and typically does not involve any significant changes to your mortgage agreement other than a new interest rate. Think of it as hitting the "continue" button on your mortgage, but at new rates. What is a Mortgage Refinance? A mortgage refinance is different. When you refinance, you are making changes to your original mortgage agreement. This means paying off your existing mortgage and registering a new one on your property's title. Essentially, you are taking out a completely new mortgage for the same property. People commonly refinance to: Access the equity in their home for investments or major purchases Consolidate high-interest debt into their lower-rate mortgage Extend the amortization period to reduce monthly payments and improve cash flow Make significant changes to their mortgage structure It's important to note that refinancing is not allowed for insured properties (those with less than a 20% down payment at purchase). This means the maximum loan amount in a refinance is 80% of your property value. What About Switching Lenders? If you want to keep everything the same but switch lenders for a better rate, this is known as a transfer. A transfer is a type of renewal where the original mortgage charge is transferred from one lender to another. Depending on the lenders involved, you might be able to make minor changes (like extending the amortization or changing borrowers) without needing a full refinance. Why Timing Matters Your mortgage maturity date is when your current term ends. This is the ideal time to either renew or refinance. If you refinance or switch lenders before the maturity date, you will face a prepayment penalty. If you refinance, renew or transfer at maturity, there is no penalty. Real-World Example A homeowner with a $450,000 mortgage is reaching the end of their 5-year term. Their lender offers a renewal rate, but they also have $40,000 in high-interest credit card debt. Option 1: Renewal They accept the new term. Their mortgage stays the same. Their debt remains separate at high interest rates. Option 2: Refinance at Maturity They consolidate the credit card debt into the new mortgage. Their total monthly payments drop significantly, even after accounting for the new mortgage balance. In this situation, refinancing provides better cash flow and a simpler payment structure. Quick Summary Mortgage Renewal: Starts a new term for your existing mortgage Mortgage charge on your title stays the same Keeps all other terms the same aside from interest rate Can switch lenders at renewal through a transfer No penalty when done at maturity Mortgage Refinance: Pays off current mortgage and creates a new one New mortgage charge registered on your title Often resets the amortization period Can access equity or make structural changes Maximum 80% of property value for uninsured mortgages Incurs penalty if done before maturity Next Steps Understanding the difference between renewal and refinance helps you make informed decisions about managing your mortgage. If you have a renewal coming up or are considering accessing your home equity, now is a good time to explore your options. Whether you're looking to renew, refinance, or switch lenders, I'm here to help you navigate the process and find the best solution for your situation. Need help with your mortgage? Book a consultation or call 778-988-8409 . Glossary Amortization: The total time period over which you'll pay off your mortgage, typically 25-30 years in Canada. Insured Mortgage: A mortgage where the down payment was less than 20%, requiring mortgage default insurance to be added. Maturity Date: The end date of your current mortgage term, when you need to renew or refinance. Mortgage Charge: The legal registration of your mortgage on your property's title. Pre-payment Penalty: A fee charged by your lender if you pay off your mortgage before the end of your term. Refinance: Replacing your existing mortgage with a new mortgage, often with different terms or to access equity. Renewal: Starting a new term for your existing mortgage, typically just updating the interest rate. Term: The length of time your current mortgage contract is in effect, typically 3-5 years in Canada. Transfer: Moving your mortgage from one lender to another at renewal without changing other terms.

What Is an Insured Mortgage and How Does It Work?

By Tim Lyon • October 28, 2025
If you're buying a home with less than 20% down, you'll need something called an insured mortgage. Many borrowers find this confusing at first, especially since it doesn’t refer to insurance for you, the borrower. That’s why I have put together this straightforward breakdown so you understand what insured mortgages are, why they exist, and how they affect your purchase. What Is an Insured Mortgage? A mortgage must be insured when a borrower makes a down payment of less than 20% on a home purchase. The insurance protects the lender (not the borrower) in case the borrower defaults. The insurance is guaranteed by the federal government. So, why do we have this program? It allows borrowers to buy homes with smaller down payments and higher loan-to-value (LTV) ratios. Higher loan-to-value mortgages are inherently more risky because there is not much cushion if the housing market starts to decline. For example, if someone buys a $500,000 home with only 5% down ($25,000), they’ll need a $475,000 mortgage—this is a 95% LTV . If the market drops and the home’s value falls to $470,000, the mortgage would still be $475,000. If the borrower stopped making payments, the lender could lose money after selling the home and paying costs. That kind of loss, multiplied across thousands of borrowers, could threaten the stability of the entire banking system (as we saw in the U.S. in 2008). The mortgage insurance system is designed to prevent that scenario by spreading risk and keeping lenders protected. How Does the Insurance Work? You, the borrower, pay the insurance premium. It's typically added directly to your mortgage balance rather than paid upfront. The cost depends on your down payment size and amortization. Example: Purchase price: $500,000 Down payment: $25,000 (5%) Mortgage amount: $475,000 Insurance premium: 4.2% = $19,950 Total new mortgage: $494,950 The insurance does add cost, but insured mortgages usually offer slightly lower interest rates because the lender's risk is minimal. The rate savings don't fully offset the premium, but they help. The Insurer’s Role For insured mortgages, the insurer’s approval is the most important part of the process. If the insurer won’t approve the file, no lender can. Once the insurer signs off, we can typically find a lender to fund the loan. Canada has three mortgage insurers: CMHC (public) Sagen (private) Canada Guaranty (private) All of the insurers are backed by government guarantees and have to follow similar rules, but each has a few unique programs. Lenders usually choose the insurer, though I sometimes work with them to send a file to a specific insurer if it benefits the borrower. Qualification Rules Because insured mortgages are government-backed, the rules are strict: Debt ratios: 39% of your income can go toward your stress-tested mortgage payment, property taxes, heat, and half of condo fees 44% of your income can go toward the above plus your other debts Down payment: 5% on the first $500,000, 10% on the remainder Maximum purchase price: $1.5 million Amortization: Maximum of 25 years for most buyers; up to 30 years for first-time buyers who qualify under the new federal program Unlike with an uninsured mortgage, where lenders may have some flexibility if your income ratios are slightly above the limits, there is no discretion on an insured mortgage. If your ratios exceed the limits even a little bit, the insurer will decline the application. The Approval Process The process is similar to an uninsured mortgage, with one extra step: We submit your mortgage application to the lender of choice They do their initial review If that looks good, they package it up and send it to the insurer Once the insurer has reviewed and approved it, the file comes back to the lender for final review and approval Common Misunderstandings About Insured Mortgages Many borrowers are surprised to learn the following facts about insured mortgages: You do not need to be a first-time homebuyer to buy with less than 20% down You cannot buy an investment property with less than 20% down You can buy a second home with less than 20% down You cannot refinance an insured mortgage and keep the insurance. If you have an insured mortgage and do refinance, you will lose the insurance. This mostly affects the lender, but it also moves you to uninsured rates. Why Choose an Insured Mortgage? Given the cost and restrictions, why would anyone choose an insured mortgage? The main reason is accessibility . It allows you to buy a home without saving a full 20% down payment, which is increasingly difficult with high home prices and living costs. It can also be a strategic choice. Some buyers prefer to keep more of their savings invested or diversified instead of tying everything up in a down payment. If your investments are earning more than your mortgage costs, keeping that money invested might make financial sense. Real-World Example Let's say you're buying a $600,000 home. Here's how the costs compare between the minimum down payment for an insured mortgage and the minimum down payment for an uninsured mortgage: