How Much Mortgage Can I Afford in Calgary?
Quick Answer
Based on a $100,000 household income in Calgary, you can typically afford a home between $450,000 and $520,000 depending on your debts, down payment, and current rates. The OSFI stress test at the higher of your rate + 2% or 5.25% determines your maximum qualification.
Calculator
Car, student loans, credit cards
Maximum Purchase Price
$450,115
Debt Ratios
Max 39%
Max 44%
💡 What This Means for You
Based on a $100,000 household income, you can qualify for a home up to $450,115. The bank will test you at 6.99% (stress test), even though your actual rate is 4.99%.
How It Works
Canadian mortgage qualification uses two key ratios: GDS (Gross Debt Service) — your housing costs divided by gross income, capped at 39% — and TDS (Total Debt Service) — all debts including housing divided by gross income, capped at 44%.
Housing costs include mortgage payment, property tax, heating, and 50% of condo fees. The qualification uses the stress test rate (higher of contract rate + 2% or 5.25%), not your actual mortgage rate.
Real Calgary Scenarios
Single Income
$70,000/yr income
$294,599
max purchase price
Dual Income
$140,000/yr income
$663,501
max purchase price
High Income
$200,000/yr income
$1,014,535
max purchase price
Frequently Asked Questions
How much house can I afford on $100K in Calgary?
With $100,000 income, $400/month in debts, and $50,000 down, you can typically afford a home around $470,000–$520,000 at current rates. The exact amount depends on your debt load and property taxes.
What is the stress test for a Calgary mortgage?
The OSFI B-20 stress test requires you to qualify at the higher of your contract rate + 2% or 5.25%. This reduces your maximum borrowing power by roughly 20% compared to qualifying at the actual rate.
What are GDS and TDS ratios?
GDS (Gross Debt Service) is your housing costs divided by gross income — max 39%. TDS (Total Debt Service) adds all debts to housing costs — max 44%. Both must be satisfied to qualify.
Does my car payment affect my mortgage qualification?
Yes. Car payments, student loans, credit card minimums, and all other debts count toward your TDS ratio. A $500/month car payment can reduce your borrowing power by roughly $80,000–$100,000.
How much house you can afford in Calgary in 2026
Affordability in Calgary is governed by federal rules (the OSFI B-20 stress test), provincial property tax math (Alberta has no land-transfer tax), and lender-specific overlays. This calculator implements the exact GDS/TDS formulas that CMHC, Sagen, and Canada Guaranty use — the same numbers your broker pulls.
Income that lenders actually count
Not every dollar you earn qualifies. Here's how Calgary lenders typically treat each income source:
- Salary / hourly (T4): 100% of gross, verified with letter of employment and recent paystub.
- Self-employed: 2-year average of line 150 net income, sometimes grossed up 15%.
- Bonus / commission: 2-year average, only if consistent.
- Rental income (existing): 50% added to income, or 80% offset against the rental's expenses.
- Child support / spousal support: Counted if documented and ongoing 3+ years.
- Investment income: 2-year average of T5/T3 income.
The GDS and TDS ratios, in plain English
GDS (Gross Debt Service) is the portion of your gross monthly income that goes to housing. It includes:
- Principal and interest at the qualifying rate
- Property tax (estimated from purchase price × Calgary mill rate)
- Heating cost (typically $150/month)
- 50% of condo fees
The max is 39% for insured mortgages, 35% for some uninsured lenders. TDS adds every other debt — car payment, credit card minimums (calculated as 3% of balance), student loans, lines of credit (3% of balance) — and caps at 44%.
Why the stress test still matters
Since 2018, OSFI requires lenders to qualify borrowers at the greater of their contract rate + 2% or the floor of 5.25%. With actual contract rates around 4.79% in 2026, the qualifying rate is 6.79% — and that's the rate this calculator uses to determine your maximum mortgage. The practical impact: a household earning $120,000 with $400/month in debts can comfortably afford a payment based on 4.79%, but qualifies for roughly 18% less mortgage because of the stress test.
Calgary-specific affordability quirks
- No land transfer tax means more of your savings can go to down payment instead of closing costs — Calgary buyers typically reserve $3,500 for closing vs. $20,000+ in Toronto.
- Lower property tax than Vancouver or Toronto frees up GDS room. A $700K Calgary home pays about $4,620/year in property tax vs. $5,400 in Toronto.
- Higher home insurance due to hail risk — budget $200/month for detached homes.
- Condo fees vary widely — $0.45/sqft in newer suburban builds vs. $0.90+/sqft for older inner-city concrete buildings.
How to maximize what you qualify for
- Pay down or close credit lines before applying — even unused limits affect TDS at some lenders.
- Switch from leasing to owning a car only after closing — lease payments count fully.
- Use a co-signer or guarantor strategically; their income adds without their debts (in most cases).
- Choose 30-year amortization if you qualify as a first-time buyer or are buying new construction.
- Time bonus income — get a 2-year average documented before applying.
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