Short answer: Maybe — but it depends on what those expenses actually are.
If your monthly expenses are 10% higher than your income, that is an important warning sign for your personal budget. But mortgage qualification isn't based simply on adding up every dollar you spend and asking whether income is greater than expenses.
Canadian mortgage lenders primarily examine Gross Debt Service (GDS) and Total Debt Service (TDS), along with income stability, credit history, down payment, existing debts and the mortgage stress test.
That means someone whose bank statements show high spending isn't necessarily automatically declined — while someone with a seemingly comfortable income can still fail mortgage qualification because of car loans, credit-card balances, lines of credit or other debt obligations.
Let's say you earn:
$7,000/month gross income
But your total personal spending is:
$7,700/month
You're effectively running a $700 monthly deficit — 10% above income.
Should you buy a home?
That's a very different question from:
“Would a lender approve my mortgage?”
A lender may calculate your mortgage qualification using specific housing and debt expenses rather than every discretionary expense in your household budget.
For example, CMHC's debt-service calculations include mortgage principal and interest, property taxes, heating costs and applicable condo fees, plus other debt obligations when calculating TDS.
So your restaurant spending, vacations, subscriptions and other discretionary purchases may not be treated the same way as a car loan or credit-card debt.
But that doesn't mean those expenses should be ignored.
These two numbers are extremely important when you're trying to qualify.
GDS measures how much of your gross household income goes toward housing costs.
Generally, CMHC uses a maximum GDS of 39% for insured mortgages.
Housing costs can include:
TDS goes one step further.
It considers your housing costs plus other debt obligations, such as:
CMHC's standard TDS limit is 44% for insured mortgages.
Your lifestyle spending isn't the same thing as your debt-service ratio.
That's why someone spending more than they earn doesn't automatically equal a mortgage denial.
But lenders can still review your overall financial situation, and you need to be able to comfortably carry the new housing costs.
Imagine a household earns:
$100,000 gross annual income
That's approximately:
$8,333/month gross income
If the household has:
The lender isn't simply asking:
“Does this family spend less than $8,333?”
Instead, the lender evaluates the applicable debt-service calculations and qualifying mortgage payment.
That's why reducing monthly debt can sometimes improve mortgage qualification significantly, even if household income doesn't change.
This is where many buyers get surprised.
For uninsured mortgages at federally regulated lenders, the current minimum qualifying rate is the greater of the contractual mortgage rate + 2 percentage points or 5.25%.
So if your actual mortgage rate were:
4.5%
the qualifying rate would generally be:
6.5%
That higher qualifying rate can reduce the mortgage amount you qualify for.
The Bank of Canada notes that stress testing can limit the maximum loan amount a borrower qualifies for or require a larger down payment.
This is why simply saying “I can afford the payment” isn't enough.
Consider two buyers.
Income: $100,000
Monthly lifestyle spending: relatively high
But:
Income: $100,000
Lower lifestyle spending
But:
Depending on the mortgage application, Buyer B could have more difficulty qualifying because recurring debt obligations directly affect TDS.
The lesson?
Don't look only at your income.
Look at your income + debt + housing costs + qualifying rate.
This question is particularly relevant right now.
TRREB reported 5,057 GTA home sales in August 2026, down 2.1% from August 2025. New listings were down 14.1% year-over-year, while the MLS HPI Composite benchmark was down 4.5% year-over-year and the average selling price was $993,410, down 2.7%.
That combination creates an interesting situation for buyers.
Prices have softened from last year, but qualification remains a separate hurdle.
A lower purchase price can help, but if your existing debt is high, you may still have trouble qualifying for the mortgage you want.
For buyers considering moving from the GTA toward Barrie, Essa, Angus, Innisfil, New Tecumseth or other Simcoe County communities, affordability can look different from Toronto and many GTA markets.
TRREB's 2026 year-to-date data through May showed an average selling price of approximately $846,485 for Simcoe County, compared with more than $1.03 million across all TRREB areas. Within the Simcoe County data, Essa averaged about $799,058 and New Tecumseth about $794,394.
Current Barrie market data also shows an average sold price around $662,000 for the August 16–September 13 period, according to Zolo's September 2026 market report.
But here's the catch:
Moving to a less expensive market doesn't automatically solve a qualification problem.
A $700,000 home with substantial car and consumer debt may still be difficult to qualify for, while a buyer with stronger debt ratios may qualify for a higher-priced property.
If your expenses really are 10% above your income, don't panic — but don't ignore it either.
Break your monthly spending into:
Housing
Transportation
Credit-card payments
Lines of credit
Personal loans
Utilities
Food
Subscriptions
Entertainment
Other discretionary spending
You may discover that the problem is actually concentrated in a few categories.
A $700 monthly car payment isn't just $700.
It can also reduce the amount of mortgage debt you qualify for because it affects your TDS calculation.
Paying down or eliminating qualifying debts can sometimes make a meaningful difference.
Avoid making major purchases immediately before a mortgage application.
That new:
could affect your application.
You don't necessarily have to abandon the goal of homeownership.
You might consider:
The goal is to match the purchase price to your actual financial capacity, not simply the maximum amount a lender might approve.
This is probably the most important takeaway.
A lender saying:
“You qualify for $700,000.”
doesn't necessarily mean:
“You should spend $700,000.”
Your personal budget needs to account for things that mortgage qualification may not fully capture:
A mortgage should fit into your life, not just pass a lender's calculation.
Possibly.
If your expenses are 10% higher than your income, the answer depends on why.
Having expenses that are 10% higher than your income doesn't automatically mean you cannot get a mortgage.
But it is a financial warning sign that deserves attention before you buy.
Mortgage qualification focuses heavily on income, housing costs, debt obligations, credit and the stress test — not simply whether your bank account shows a monthly surplus.
And in today's GTA and Simcoe County market, where prices and inventory are changing, the smartest starting point isn't:
“How much mortgage can I get?”
It's:
“What monthly housing payment can I comfortably live with?”
That number can be very different.