How Much House Can I Afford in Canada? The Real Math Behind Affordability
Every real estate agent will tell you to "get pre-approved first." That's fine — but a pre-approval just tells you the maximum the bank will lend, not what you can actually afford without eating ramen for 25 years. Let's break down the real math.
The Two Ratios Banks Actually Use
Canadian lenders use two debt-service ratios to decide your maximum mortgage. These aren't suggestions — they're hard limits.
GDS Ratio (Gross Debt Service) — Max 39%
Your GDS ratio is your total monthly housing costs divided by your gross monthly income. Housing costs include:
- Mortgage payment (principal + interest)
- Property tax
- Heating costs (banks estimate ~$100–$150/month)
- 50% of condo fees (if applicable)
Most lenders cap GDS at 39%. Some alternative lenders go to 42–44%, but you'll pay a higher rate.
TDS Ratio (Total Debt Service) — Max 44%
TDS takes your GDS and adds all other debt payments: car loans, student loans, credit card minimums, lines of credit. The cap is 44% of gross income.
If you have a $400/month car payment, that directly reduces how much mortgage you qualify for — roughly $80,000 less borrowing power at current rates.
The Stress Test: Why You Qualify for Less Than You Think
Since 2018, all Canadian mortgage applicants must qualify at the higher of their contract rate + 2% or the Bank of Canada's qualifying rate (currently 5.25%). So if your lender offers you 4.50%, you need to show you can handle payments at 6.50%.
This isn't just for high-ratio mortgages anymore — it applies to everyone, including those with 20%+ down. The stress test alone reduces your buying power by roughly 20% compared to qualifying at the actual rate.
Real Numbers: What $80K, $100K, and $150K Incomes Can Buy
| Gross Income | Max Mortgage (approx) | With 10% Down | Monthly Payment |
|---|---|---|---|
| $80,000 | $340,000 | $378,000 home | ~$1,890/mo |
| $100,000 | $440,000 | $489,000 home | ~$2,440/mo |
| $150,000 | $680,000 | $756,000 home | ~$3,770/mo |
Assumptions: 4.5% rate, 25-year amortization, no other debts, $3,500/year property tax, $1,800/year heating.
These numbers assume zero other debt. Got a $350/month car payment? Subtract about $70K from your max mortgage. Student loans at $250/month? That's another $50K off.
Province-Level Differences That Matter
Ontario
Land transfer tax in Ontario is tiered: 0.5% on the first $55,000, 1% up to $250,000, 1.5% up to $400,000, and 2% above that. Toronto adds a separate municipal land transfer tax on top. First-time buyers get rebates up to $4,000 provincially and $4,475 in Toronto. On a $500K purchase, expect $6,475 in land transfer tax (or $2,475 with the rebate).
British Columbia
BC's property transfer tax is 1% on the first $200K, 2% up to $2M, and 3% above that. Plus, the foreign buyer ban and speculation tax affect pricing in Metro Vancouver specifically. A $700K home in Vancouver costs about $13,000 in transfer tax. First-time buyers are exempt on homes under $500K.
Alberta
No provincial land transfer tax — one of the few provinces without one. You'll still pay a title registration fee (roughly $50 + $2 per $5,000 of value), but it's a fraction of Ontario or BC costs. This is a real advantage for buyers.
The 30% Take-Home Rule
Banks say you can spend up to 39% of gross income on housing. But gross income isn't what hits your bank account. After taxes, CPP, and EI, your take-home is 25–35% less than gross.
A more practical rule: keep your total housing cost under 30% of your net (take-home) pay. On a $100K salary in Ontario, your take-home is roughly $6,200/month. That means $1,860/month for housing — which buys you a lot less house than the bank's 39% GDS would allow.
Run your exact numbers with our mortgage calculator — and compare the renting alternative with our rent vs buy tool.
CMHC Insurance: The Cost of Less Than 20% Down
If your down payment is less than 20%, you'll pay CMHC mortgage insurance. The premium is added to your mortgage:
| Down Payment | Insurance Premium | On $400K Mortgage |
|---|---|---|
| 5% | 4.00% | $16,000 |
| 10% | 3.10% | $12,400 |
| 15% | 2.80% | $11,200 |
That $16,000 insurance premium on a 5% down purchase gets added to your mortgage — you're paying interest on it for 25 years. The real cost is closer to $25K over the life of the loan.
Closing Costs People Forget
Beyond the down payment, budget 1.5–4% of the purchase price for closing costs:
- Legal fees: $1,500–$2,500
- Home inspection: $400–$600
- Appraisal: $300–$500
- Land transfer tax: varies by province (see above)
- Title insurance: $200–$400
- Moving costs: $1,000–$3,000
On a $500K purchase, that's $7,500–$20,000 on top of your down payment. Don't drain your savings to zero — keep an emergency fund.
Using Your FHSA and RRSP for a Down Payment
First-time buyers have two tax-advantaged options for saving a down payment:
- FHSA: Up to $40,000 lifetime ($8,000/year), tax-deductible going in and tax-free coming out. The best deal available. Compare all three accounts here.
- HBP (Home Buyers' Plan): Withdraw up to $60,000 from your RRSP tax-free for a home purchase. You have 15 years to repay it. Use our RRSP calculator to see the impact.
These can be combined — a couple could access up to $200,000 between two FHSAs and two HBP withdrawals, though few people have that much saved in registered accounts.
Bottom Line
The bank will tell you the maximum. Your budget should tell you the comfortable number. Start with 30% of take-home, subtract your debts, and work backward to a purchase price. Then run the numbers through our mortgage calculator and income tax calculator to see the full picture.
Editorial disclaimer
This article is published by LoonieLabs for general information only. It is not financial, tax, legal, accounting, or immigration advice and must not be relied on as such. Rules, dollar figures, interest rates, and program eligibility change — always verify with the Canada Revenue Agency, IRCC, or a qualified professional before acting. Spotted an error? See our corrections policy. Last reviewed: April 14, 2026.
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Written and reviewed by Shrey Patel — Founder & Editor-in-Chief
Winnipeg, MB · Fact-checked by our Banking & Credit reviewer · Last reviewed April 14, 2026 · LinkedIn
Founder of LoonieLabs · based in Winnipeg, MB · writes and reviews every page on the site I oversee every figure on this page personally — verified against primary sources (CRA, IRCC, Statistics Canada, the Bank of Canada, or the originating provincial ministry). LoonieLabs has no affiliate relationships with any bank, credit card, or immigration consultant featured on this site. Spotted a mistake? Tell us.
Published by the LoonieLabs Editorial Team.