Buying Your First Home
Your income matters, but it is only one part of the calculation. Your debts, down payment, interest rate, property taxes, heating costs, and other monthly expenses can all affect how much mortgage you may qualify for.
Two Important Numbers
A lender’s affordability calculation and your personal home-buying budget answer two different questions.
The amount that may fit within a lender’s qualification guidelines.
The payment and purchase price that fit your actual monthly life.
Example
Imagine two buyers who each earn $100,000 per year and have the same down payment.
The first buyer has no car payment and pays off their credit cards each month. The second buyer has a $750 monthly car payment and a balance on a line of credit.
Even though their incomes are identical, the first buyer may qualify for a larger mortgage because less of their monthly income is already committed to other debts.
The property itself can change the result too. Higher property taxes or strata fees may reduce the amount either buyer can qualify for.
Planning Insight
It is easy to assume that a certain income automatically means you can afford a certain home price. In reality, mortgage qualification is more personal than that.
Understanding your numbers before you begin house hunting can help you focus on homes that fit both the approval and the monthly payment you are comfortable carrying.
The Calculation
Mortgage affordability is based on how much of your income would be needed to cover your housing costs and other monthly debts.
Lenders use debt-service calculations to compare those expenses with your qualifying income.
The result depends on your complete financial picture, not just your salary or the home price you are considering.
Qualifying Income
Lenders begin with the income they can reasonably use for your application. This may include salary, hourly income, pension income, or other stable sources.
Bonus, overtime, commission, contract, and self-employed income may also be considered.
Lenders will often want to see a history of variable income before using it in the qualification.
Monthly Commitments
Monthly debt payments reduce the amount of income available for housing costs.
These payments may include car loans, credit cards, lines of credit, student loans, personal loans, and other ongoing obligations.
This is one reason two people earning the same income may qualify for very different mortgage amounts. One may have no debt, while the other may already have several large monthly payments.
Funds Available
A larger down payment reduces the amount you need to borrow. It can also affect whether mortgage default insurance is required and which mortgage options may be available.
Your down payment does not replace the need to qualify for the mortgage, but it can make a meaningful difference to the mortgage amount and monthly payment.
If you are still working toward your savings goal, you can plan your down payment and see how different purchase prices and savings targets may affect your timeline.
Estimate the down payment for a purchase priceQualifying Rate
Your mortgage payment is influenced by the interest rate, but lenders may also require you to qualify using a higher rate under Canada's mortgage stress test.
This means the payment used to determine whether you qualify may be higher than the payment you would actually make at your mortgage rate.
Property Costs
Affordability calculations include more than your mortgage payment. Lenders also account for property taxes and an estimate of heating costs.
If you are purchasing a strata property, lenders may also include a portion of the monthly condo or strata fee in the calculation.
Higher property taxes or strata fees can reduce the mortgage amount you qualify for, even when the purchase price appears to fit within your budget.
Available Options
Your credit history can affect which lenders and mortgage products are available to you.
Different lenders may also treat certain types of income and debt differently.
That is why an online affordability estimate should be treated as a starting point rather than a final approval.
Your Real Budget
A lender's maximum approval tells you what may fit within its qualification rules. It does not tell you what monthly payment will feel comfortable in your everyday life.
You may also want room in your budget for savings, childcare, travel, home maintenance, renovations, hobbies, or future changes in income.
A thoughtful home-buying budget considers both numbers: what you may qualify for and what you actually want to spend each month.
Frequently Asked
Clear answers to some of the most common questions about this topic.
No. Income is important, but lenders also consider your monthly debts, down payment, credit history, qualifying interest rate, property taxes, heating costs, and any applicable condo fees.
Yes. The monthly payment on a car loan is included in your debt calculations. A larger payment can reduce the mortgage amount you may qualify for, even when your income is strong.
They can. Lenders generally include a required monthly payment for outstanding credit card balances, which can reduce the amount of income available for housing costs.
Sometimes. Lenders may consider variable income when there is enough history to show that it is consistent and likely to continue. The documents and history required can vary.
Self-employed income can be used, but the way it is calculated may be different. Lenders may review personal tax returns, notices of assessment, business financial statements, or other supporting documents.
Not necessarily. The maximum mortgage you qualify for is not always the same as the monthly payment that will feel comfortable. Your lifestyle, savings goals, and future expenses still matter.
Helpful Tool
Use the Income Required Calculator to estimate the household income that may be needed for a purchase price based on the mortgage amount, rate, property taxes, heating costs, and other qualification details.
Home-Buying Planning
Knowing what you may qualify for is only part of the picture. You'll also need to understand how much down payment you may need and how long it could take to reach your savings goal.
Use the Down Payment Savings Roadmap to choose a target purchase price, see minimum, 10% and 20% down-payment milestones, and build a realistic savings timeline.
What to Explore Next
Here are a few related answers, guides, and tools that may help you take the next step.
Mortgage Tool
Estimate property transfer tax, legal costs, and other expenses you may need to prepare for before your purchase completes.
Mortgage Minute
Understand what a pre-approval can tell you, what it does not guarantee, and why it can help before you begin house hunting.
Mortgage Guide
Understand the complete home-buying journey, from early planning and pre-approval to receiving the keys.
Personal Guidance
Affordability is personal. I would be happy to help you understand how your income, debts, down payment, property costs, and monthly comfort level fit together before you begin looking at homes.
Need a Second Opinion?
I can help you work through the numbers and the next step.
Ask Kiersten a Question