Lowering Your Overall Cost of Borrowing

Kambi Heywood • October 10, 2024


If you’re like most Canadians, chances are you don’t have enough money in the bank to buy a property outright. So, you need a mortgage. When you’re ready, it would be a pleasure to help you assess and secure the best mortgage available. But until then, here’s some information on what to consider when selecting the best mortgage to lower your overall cost of borrowing.


When getting a mortgage, the property you own is held as collateral and interest is charged on the money you’ve borrowed. Your mortgage will be paid back over a defined period of time, usually 25 years; this is called amortization. Your amortization is then broken into terms that outline the interest cost varying in length from 6 months to 10 years. From there, each mortgage will have a list of features that outline the terms of the mortgage.


When assessing the suitability of a mortgage, your number one goal should be to keep your cost of borrowing as low as possible. And contrary to conventional wisdom, this doesn’t always mean choosing the mortgage with the lowest rate. It means thinking through your financial and life situation and choosing the mortgage that best suits your needs.


Choosing a mortgage with a low rate is a part of lowering your borrowing costs, but it’s certainly not the only factor. There are many other factors to consider; here are a few of them:


  • How long do you anticipate living in the property? This will help you decide on an appropriate term.
  • Do you plan on moving for work, or do you need the flexibility to move in the future? This could help you decide if portability is important to you.
  • What does the prepayment penalty look like if you have to break your term? This is probably the biggest factor in lowering your overall cost of borrowing.
  • How is the lender’s interest rate differential calculated, what figures do they use? This is very tough to figure out on your own. Get help. 
  • What are the prepayment privileges? If you’d like to pay down your mortgage faster.
  • How is the mortgage registered on the title? This could impact your ability to switch to another lender upon renewal without incurring new legal costs, or it could mean increased flexibility down the line.
  • Should you consider a fixed rate, variable rate, HELOC, or a reverse mortgage? There are many different types of mortgages; each has its own pros and cons. 
  • What is the size of your downpayment? Coming up with more money down might lower (or eliminate) mortgage insurance premiums, saving you thousands of dollars.


So again, while the interest rate is important, it’s certainly not the only consideration when assessing the suitability of a mortgage. Obviously, the conversation is so much more than just the lowest rate. The best advice is to work with an independent mortgage professional who has your best interest in mind and knows exactly how to keep your cost of borrowing as low as possible.


You will often find that mortgages with the rock bottom, lowest rates, can have potential hidden costs built in to the mortgage terms that will cost you a lot of money down the road. Sure, a rate that is 0.10% lower could save you a few dollars a month in payments, but if the mortgage is restrictive, breaking the mortgage halfway through the term could cost you thousands or tens of thousands of dollars. Which obviously negates any interest saved in going with a lower rate.


It would be a pleasure to walk you through the fine print of mortgage financing to ensure you can secure the best mortgage with the lowest overall cost of borrowing, given your financial and life situation. Please connect anytime!

Kambi Heywood

Licensed Mortgage Broker

GET STARTED
By Kambi Heywood October 23, 2025
One of the major qualifiers lenders look at when considering your application for mortgage financing is your debt service ratios. Now, before we get started, if you prefer to have someone walk through these calculations with you, assess your financial situation, and let you know exactly where you stand, let’s connect. There is no use in dusting off the calculator and running the numbers yourself when we can do it for you! However, if you’re someone who likes to know the nitty-gritty of how things work instead of simply accepting that's just the way it is, this article is for you. But be warned, there are a lot of mortgage words and some math ahead; with that out of the way, let’s get started! “Debt servicing” is the measure of your ability to meet all of your financial obligations. There are two ratios that lenders examine to determine whether you can debt service a mortgage. The first is called the “gross debt service” ratio, or GDS, which is the percentage of your monthly household income that covers your housing costs. The second is called the “total debt service” ratio, or TDS, which is the percentage of your monthly household income covering your housing costs and all your other debts. GDS is your income compared to the cost of financing the mortgage, including your proposed mortgage payments (principal and interest), property taxes, and heat (PITH), plus a percentage of your condo fees (if applicable). Here’s how to calculate your GDS. Principal + Interest + Taxes + Heat / Gross Annual Income Your TDS is your income compared to your GDS plus the payments made to service any existing debts. Debts include car loans, line of credit, credit card payments, support payments, student loans, and anywhere else you’re contractually obligated to make payments. Here’s how to calculate your TDS. Principal + Interest + Taxes + Heat + Other Debts / Gross Annual Income With the calculations for those ratios in place, the next step is to understand that each lender has guidelines that outline a maximum GDS/TDS. Exceeding these guidelines will result in your mortgage application being declined, so the lower your GDS/TDS, the better. If you don’t have any outstanding debts, your GDS and TDS will be the same number. This is a good thing! The maximum ratios vary for conventional mortgage financing based on the lender and mortgage product being offered. However, if your mortgage is high ratio and mortgage default insurance is required, the maximum GDS is 39% with a maximum TDS of 44%. So how does this play out in real life? Well, let’s say you’re currently looking to purchase a property with a payment of $1700/mth (PITH), and your total annual household income is $90,000 ($7500/mth). The calculations would be $1700 divided by $7500, which equals 0.227, giving you a gross debt service ratio of 22.7%. A point of clarity here. When calculating the principal and interest portion of the payment, the Government of Canada has instituted a stress test. It requires you to qualify using the government's qualifying rate (which is higher), not the actual contract rate. This is true for both fixed and variable rate mortgages. Now let’s continue with the scenario. Let’s say that in addition to the payments required to service the property, you have a car payment of $300/mth, child support payments of $500/mth, and between your credit cards and line of credit, you’re responsible for another $700/mth. In total, you pay $1500/mth. So when you add in the $1700/mth PITH, you arrive at a total of $3200/mth for all of your financial obligations. $3200 divided by $7500 equals 0.427, giving you a total debt service ratio of 42.7%. Here’s where it gets interesting. Based on your GDS alone, you can easily afford the property. But when you factor in all your other expenses, the TDS exceeds the allowable limit of 42% (for an insured mortgage anyway). So why does this matter? Well, as it stands, you wouldn’t qualify for the mortgage, even though you are likely paying more than $1700/mth in rent. So then, to qualify, it might be as simple as shuffling some of your debt to lower payments. Or maybe you have 10% of the purchase price saved for a downpayment, changing the mortgage structure to 5% down and using the additional 5% to pay out a portion of your debt might be the difference you need to bring it all together. Here’s the thing, as your actual financial situation is most likely different than the one above, working with an independent mortgage professional is the best way to give yourself options. Don’t do this alone. Your best plan is to seek and rely on the advice provided by an experienced independent mortgage professional. While you might secure a handful of mortgages over your lifetime, we do this every day with people just like you. It’s never too early to start the conversation about mortgage qualification. Going over your application and assessing your debt service ratios in detail beforehand gives you the time needed to make the financial moves necessary to put yourself in the best financial position. So if you find yourself questioning what you can afford or if you want to discuss your GDS/TDS ratios to understand the mortgage process a little better, please get in touch. It would be a pleasure to work with you, we can get a preapproval started right away.
By Kambi Heywood October 9, 2025
Thinking About Selling Your Home? Start With These 3 Key Questions Selling your home is a major move—emotionally, financially, and logistically. Whether you're upsizing, downsizing, relocating, or just ready for a change, there are a few essential questions you should have answers to before you list that "For Sale" sign. 1. How Will I Get My Home Sale-Ready? Before your property hits the market, you’ll want to make sure it puts its best foot forward. That starts with understanding its current market value—and ends with a plan to maximize its appeal. A real estate professional can walk you through what similar homes in your area have sold for and help tailor a prep plan that aligns with current market conditions. Here are some things you might want to consider: Decluttering and removing personal items Minor touch-ups or repairs Fresh paint inside (and maybe outside too) Updated lighting or fixtures Professional staging Landscaping or exterior cleanup High-quality photos and possibly a virtual tour These aren’t must-dos, but smart investments here can often translate to a higher sale price and faster sale. 2. What Will It Actually Cost to Sell? It’s easy to look at the selling price and subtract your mortgage balance—but the real math is more nuanced. Here's a breakdown of the typical costs involved in selling a home: Real estate agent commissions (plus GST/HST) Legal fees Mortgage discharge fees (and possibly a penalty) Utility and property tax adjustments Moving expenses and/or storage costs That mortgage penalty can be especially tricky—it can sometimes be thousands of dollars, depending on your lender and how much time is left in your term. Not sure what it might cost you? I can help you estimate it. 3. What’s My Plan After the Sale? Knowing your next step is just as important as selling your current home. If you're buying again, don’t assume you’ll automatically qualify for a new mortgage just because you’ve had one before. Lending rules change, and so might your financial situation. Before you sell, talk to a mortgage professional to find out what you’re pre-approved for and what options are available. If you're planning to rent or relocate temporarily, think about timelines, storage, and transition costs. Clarity and preparation go a long way. The best way to reduce stress and make confident decisions is to work with professionals you trust—and ask all the questions you need. If you’re thinking about selling and want help mapping out your next steps, I’d be happy to chat anytime. Let’s make a smart plan, together.