Blog Post

What Are GDS/TDS Ratios Anyways?

Christine Buemann • March 30, 2023

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.


MORTGAGE EXPERT

CONTACT ME
RECENT POSTS

3 Questions To Ask Yourself Before Listing Your Home!

By Christine Buemann • February 13, 2025
Deciding to list your home for sale is a big decision. And while there are many reasons you might want/need to sell, here are 3 questions you should ask yourself; and have answers to, before taking that step. What is my plan to get my property ready for sale? Assessing the value of your home is an important first step. Talking with a real estate professional will help accomplish that. They will be able to tell you what comparable properties in your area have sold for and what you can expect to sell your property for. They will also know specific market conditions and be able to help you put a plan together. But as you’re putting together that plan, here are a few discussion points to work through. A little time/money upfront might increase the final sale price. Declutter and depersonalize Minor repairs A fresh coat of interior/exterior paint New fixtures Hire a home stager or designer Exterior maintenance Professional pictures and/or virtual tour But then again, these are all just considerations; selling real estate isn’t an exact science. Current housing market conditions will shape this conversation. The best plan of action is to find a real estate professional you trust, ask a lot of questions, and listen to their advice. What are the costs associated with selling? Oftentimes it’s the simple math that can betray you. In your head, you do quick calculations; you take what you think your property will sell for and then subtract what you owe on your mortgage; the rest is profit! Well, not so fast. Costs add up when selling a home. Here is a list of costs you’ll want to consider. Real estate commissions (plus tax) Mortgage discharge fees and penalties Lawyer’s fees Utilities and property tax account settlements Hiring movers and/or storage fees Having the exact figures ahead of time allows you to make a better decision. Now, the real wildcard here is the potential mortgage penalty you might pay if you break your existing mortgage. If you need help figuring this number out, get in touch! What is my plan going forward? If you’re already considering selling your home, it would be fair to guess that you have your reasons. But as you move forward, make sure you have a plan that is free of assumptions. If you plan to move from your existing property to another property that you will be purchasing, make sure you have worked through mortgage financing ahead of time. Just because you’ve qualified for a mortgage in the past doesn’t mean you’ll qualify for a mortgage in the future. Depending on when you got your last mortgage, a lot could have changed. You’ll want to know exactly what you can qualify for before you sell your existing property. If you’d like to talk through all your options, connect anytime! It would be a pleasure to work with you and provide you with professional, unbiased advice.

What is a “No-Frills” Mortgage?

By Christine Buemann • January 30, 2025
A no-frills service or product is where non-essential features have been removed from the product or service to keep the price as low as possible. And while keeping costs low at the expense of non-essential features might be okay when choosing something like which grocery store to shop at, which economy car to purchase, or which budget hotel to spend the night, it’s not a good idea when considering which lender to secure mortgage financing. Here’s why. When securing mortgage financing, your goal should be to pay the least amount of money over the term. Your plan should include having provisions for unexpected life changes. Unlike the inconvenience of shopping at a store that doesn’t provide free bags, or driving a car without power windows, or staying at a hotel without any amenities, the so-called “frills” that are stripped away to provide you with the lowest rate mortgage are the very things that could significantly impact your overall cost of borrowing. Depending on the lender, a “no-frills” mortgage rate might be up to 0.20% lower than a fully-featured mortgage. And while this could potentially save you a few hundreds of dollars over a 5-year term, please understand that it could also potentially cost you thousands (if not tens of thousands) of dollars should you need to break your mortgage early. So if you’re considering a “no-frills” mortgage, here are a few of the drawbacks to think through: You'll pay a significantly higher penalty if you need to break your mortgage. You'll have limited pre-payment privileges. Potential limitations if you want to port your mortgage to a different property. You might be limited in your ability to refinance your mortgage (without incurring a considerable penalty). Simply put, a “no-frills” mortgage is an entirely restrictive mortgage that leaves you without any flexibility. There are many reasons you might need to keep your options open. You might need to break your term because of a job loss or marital breakdown, or maybe you decide to take a new job across the country, or you need to buy a property to accommodate your growing family. Life is unpredictable; flexibility matters. So why do banks offer a no-frills mortgage anyway? Well, when you deal with a single bank or financial institution, it’s the banker’s job to make as much money from you as possible, even if that means locking you into a very restrictive mortgage product by offering a rock bottom rate. Banks know that 2 out of 3 people break their mortgage within three years (33 months). However, when you seek the expert advice of an independent mortgage professional, you can expect to see mortgage options from several institutions showcasing mortgage products best suited for your needs. We have your best interest in mind and will help you through the entire process. A mortgage is so much more than just the lowest rate. If you have any questions about this, or if you’d like to discuss anything else mortgage-related, please get in touch. Working with you would be a pleasure!

Going From A Variable Rate To A Fixed Rate Mortgage

By Christine Buemann • January 16, 2025
If you have a variable rate mortgage and recent economic news has you thinking about locking into a fixed rate, here’s what you can expect will happen. You can expect to pay a higher interest rate over the remainder of your term, while you could end up paying a significantly higher mortgage penalty should you need to break your mortgage before the end of your term. Now, each lender has a slightly different way that they handle the process of switching from a variable rate to a fixed rate. Still, it’s safe to say that regardless of which lender you’re with, you’ll end up paying more money in interest and potentially way more money down the line in mortgage penalties should you have to break your mortgage. Interest rates on fixed rate mortgages Fixed rate mortgages come with a higher interest rate than variable rate mortgages. If you’re a variable rate mortgage holder, this is one of the reasons you went variable in the first place; to secure the lower rate. The perception is that fixed rates are somewhat “safe” while variable rates are “uncertain.” And while it’s true that because the variable rate is tied to prime, it can increase (or decrease) within your term, there are controls in place to ensure that rates don’t take a roller coaster ride. The Bank of Canada has eight prescheduled rate announcements per year, where they rarely move more than 0.25% per announcement, making it impossible for your variable rate to double overnight. Penalties on fixed rate mortgages Each lender has a different way of calculating the cost to break a mortgage. However, generally speaking, breaking a variable rate mortgage will cost roughly three months of interest or approximately 0.5% of the total mortgage balance. While breaking a fixed rate mortgage could cost upwards of 4% of the total mortgage balance should you need to break it early and you’re required to pay an interest rate differential penalty. For example, on a $500k mortgage balance, the cost to break your variable rate would be roughly $2500, while the cost to break your fixed rate mortgage could be as high as $20,000, eight times more depending on the lender and how they calculate their interest rate differential penalty. The flexibility of a variable rate mortgage vs the cost of breaking a fixed rate mortgage is likely another reason you went with a variable rate in the first place. Breaking your mortgage contract Did you know that almost 60% of Canadians will break their current mortgage at an average of 38 months? And while you might have the best intention of staying with your existing mortgage for the remainder of your term, sometimes life happens, you need to make a change. Here’s is a list of potential reasons you might need to break your mortgage before the end of the term. Certainly worth reviewing before committing to a fixed rate mortgage. Sale of your property because of a job relocation. Purchase of a new home. Access equity from your home. Refinance your home to pay off consumer debt. Refinance your home to fund a new business. Because you got married, you combine assets and want to live together in a new property. Because you got divorced, you need to split up your assets and access the equity in your property Because you or someone close to you got sick Because you lost your job or because you got a new one You want to remove someone from the title. You want to pay off your mortgage before the maturity date. Essentially, locking your variable rate mortgage into a fixed rate is choosing to voluntarily pay more interest to the lender while giving up some of the flexibility should you need to break your mortgage. If you’d like to discuss this in greater detail, please connect anytime. It would be a pleasure to walk you through all your mortgage options and provide you with professional mortgage advice.
Share by: