Affordability: What first-time homeowners need to know

Jackson Middleton • April 23, 2018

Affordability. It’s a word that gets tossed around a lot when people talk about homeownership, but what does it really mean?

Affordability is a term that’s both quantifiable (lending institutions use a formula) and a little bit subjective (lifestyle considerations factor in, too). Here’s what you need to know about affordability, and what it means for you.

Affordability, as determined by lenders

For lending institutions and mortgage insurers, affordability can be summed up by the debt service ratios, as indicated by your gross debt service ratio and total debt service ratio.

Gross debt service (GDS) ratio

  • Homeownership costs (mortgage payments, property taxes, heating and, if applicable, 50% of condo fees), relative to household income

Total debt service (TDS) ratio

  • Homeownership costs (as outlined above) plus debt payments (credit cards, lines of credit, student loans, car loans, etc.), relative to household income

To qualify for mortgage insurance (mandatory for any home purchase with a down payment of less than 20% of the cost of the home), the highest allowable GDS ratio is 39% and the highest allowable TDS ratio is 44%.

TIP: Get a quick snapshot of your current debt service ratios via Genworth Canada’s What Can I Afford? calculator.

Affordability, as determined by lifestyle

Although debt service ratios are an indicator of bottom-line affordability, other real-world factors should be considered up front by potential homeowners.

Expenses like groceries, child care, transportation, and mobile phone and Internet services, for instance, are not covered by TDS, but they’re more or less fixed costs for many households. While they don’t affect debt service ratios, they should be included in your own budget calculations, as they eat up a large chunk of income.

Discretionary expenses like clothing, entertainment, memberships and kids’ extracurricular activities should also be factored into affordability considerations. Are there any areas where you could cut back? Or will some expenses disappear, such as when a car is paid off or when a child leaves daycare for full-time school?

Set a budget you can afford

Between the numbers-driven debt service ratios used by banks, trust companies and mortgage insurers and the discretionary lifestyle expenses that also affect your bottom line, you will find what affordability means for you.

It’s never too early in your homeownership journey to speak with a mortgage professional or financial planner to determine how much mortgage you can comfortably carry. This will help you assess your financial fitness and also help you set realistic goals on an achievable timeline.

Learn more about affordability by checking out these Homeownership.ca features:

3 Steps to finding your homebuying budget.

How to choose the right home for your budget


This article originally appeared on HomeOwnership.ca here , if you have mortgage questions, don’t hesitate to contact any of our Canadian Mortgage Experts, we’d love to help!

RECENT POSTS 

By Deploy.Mortgage April 10, 2026
Your credit score is one of the most important numbers in your financial life — especially when it comes to getting a mortgage. But for most Canadians, how that number actually gets calculated remains a bit of a mystery.
By DLC Canadian Mortgage Experts December 28, 2022
Did you know there’s a program that allows you to use your RRSP to help come up with your downpayment to buy a home? It’s called the Home Buyer’s Plan (or HBP for short), and it’s made possible by the government of Canada. While the program is pretty straightforward, there are a few things you need to know. Your first home (with some exceptions) To qualify, you need to be buying your first home. However, when you look into the fine print, you find that technically, you must not have owned a home in the last four years or have lived in a house that your spouse owned in the previous four years. Another exception is for those with a disability or those helping someone with a disability. In this case, you can withdraw from an RRSP for a home purchase at any time. You have to pay back the RRSP You have 15 years to pay back the RRSP, and you start the second year after the withdrawal. While you won’t pay any tax on this particular withdrawal, it does come with some conditions. You’ll have to pay back the total amount you withdrew over 15 years. The CRA will send you an HBP Statement of Account every year to advise how much you owe the RRSP that year. Your repayments will not count as contributions as you’ve already received the tax break from those funds. Access to funds The funds you withdraw from the RRSP must have been there for at least 90 days. You can still technically withdraw the money from your RRSP and use it for your down-payment, but it won’t be tax-deductible and won’t be part of the HBP. You can access up to $35,000 individually or $70,00 per couple through the HBP. Please connect anytime if you’d like to know more about the HBP and how it could work for you as you plan your downpayment. It would be a pleasure to work with you.