On a $100,000 salary in Alberta, with 5% down and no other debts, you can typically qualify for an Edmonton home around $375,000 — roughly a $370,000 mortgage once the insurance premium is added and the stress test does its work. Stretch to a 30-year amortization (available to insured first-time buyers and on new builds) and the ceiling rises to about $400,000. Save a 20% down payment and buy uninsured, and you’re shopping near $410,000. Here is every step of that math, so you can see exactly which lever moves your number.
Step 1: Your ratio budgets at $100,000
Lenders cap your housing costs as a percentage of gross income. On $100,000 a year, your gross monthly income is $8,333, which gives you these ceilings:
- GDS 32% (classic guideline): $2,667/month for all shelter costs
- GDS 35% (extended, insured files with strong credit): $2,917/month
- TDS 39% (classic): $3,250/month for shelter plus all other debt payments
- TDS 44% (extended, insured): $3,667/month
Shelter means the mortgage payment (at the qualifying rate, not your real rate), property tax, heating, and — for condos — half the condo fee.
Step 2: The stress test converts dollars into a payment
Under the federal stress test you qualify at the higher of your contract rate + 2% or the Bank of Canada benchmark (5.25% in recent years). On an example contract rate around 4.50% — an illustration, not a quote — you’d be tested at about 6.50%, which works out to roughly $670/month per $100,000 of mortgage over 25 years, or about $626/month per $100,000 over 30 years. The mechanics are in our mortgage stress test guide.
Step 3: The worked example — $375,000 with 5% down
- Price: $375,000, 5% down = $18,750
- Base mortgage: $356,250
- CMHC premium at 95% loan-to-value (4.00%): $14,250, added to the mortgage
- Total mortgage tested: $370,500
- Tested payment at 6.50% over 25 years: about $2,482/month
- Property tax (Edmonton, this price range): about $281/month
- Heating: about $150/month
- Total shelter: about $2,913/month → GDS ≈ 35.0%
That lands exactly on the extended insured ceiling — approvable at a lender using 35/44 ratios with a strong file, and declined by one holding the classic 32% line. This is the first lesson of the $100K band: at this salary, which lender’s ratio set you get is worth tens of thousands of dollars of house.
Swap in the 30-year amortization and the tested payment on a $400,000 purchase ($395,200 total mortgage) falls to about $2,476/month — shelter of about $2,926, again right at 35%. So the longer amortization buys you roughly $25,000 more house, at the cost of more interest over the life of the loan — the trade-offs are itemized in the 25-year vs 30-year amortization guide.
Step 4: The 20%-down version
With 20% down there’s no insurance premium, but uninsured files are usually tested at the classic ratios. On a $410,000 purchase: mortgage $328,000, tested payment about $2,197/month, tax about $307, heating $150 — shelter of about $2,655, a GDS of about 31.9%. Inside the classic ceiling with room to spare. Notice the pattern: the bigger down payment bought a higher price, mostly by removing the premium, not a dramatically bigger mortgage.
Step 5: What a truck payment does at $100K
At this income the constraint quietly changes: the GDS binds first when you have no debts, but one vehicle payment flips the binding constraint to TDS. A $450/month truck payment eats the same TDS room as roughly $67,000 of mortgage. Add the truck and a card balance, and the realistic purchase range on this salary drops from ~$375,000 toward $300,000–$320,000. Run your own debts through the same machinery with our affordability worksheet before falling in love with a listing.
Two more notes at this band. First, lenders count two-year-averaged overtime, bonuses and — at many lenders — the Canada Child Benefit on top of salary, so your qualifying income may be higher than your base. Second, on price: posted rates are a starting point, rates are sometimes negotiable, and I work with multiple lenders with different and sometimes more competitive products — contact us and we’ll shop across lenders, because at $100K the difference between a 32% lender and a 35% lender is a different neighbourhood.
For rate context as of October 29, 2026: the Bank of Canada raised its policy rate to 2.50% on October 28, and big-bank prime moved to 4.70% on October 29 (dominionlending.ca was still showing pre-hike prime of 4.45% that morning — posted pages lag decisions, which is why live quotes matter more than posted pages).
Frequently asked questions
What mortgage can I afford on $100,000 a year in Alberta? With 5% down and no other debts, roughly a $370,000 mortgage — about a $375,000 Edmonton home over 25 years, or about $400,000 over a 30-year amortization. With 20% down, about a $410,000 purchase.
Why do different lenders give me different answers on the same salary? Because the ratio ceilings differ. An insured lender approving at 35% GDS / 44% TDS gives you roughly $25,000–$40,000 more house than one holding the classic 32% / 39% guidelines — before rate differences are even considered.
Does a $100,000 salary qualify for a $500,000 house? Not on salary alone with a small down payment — the tested shelter cost overshoots every ratio ceiling. It becomes possible with a much larger down payment, a co-borrower’s income, or additional qualifying income like two-year-averaged overtime.
Is the “4 to 5 times your income” rule right at $100K? Closer to 3.7 times at the stress test with 5% down. The multiple rises with a bigger down payment and falls with every monthly debt you carry.
Get your lender-by-lender number
At $100,000, the answer genuinely depends on which lender’s rulebook we use and what your other debts look like. Run your real figures through the free Pre-Approval & Refinance Check and I’ll calculate your ceiling across lenders — and tell you which lever moves it most. Call Travis Bannert, licensed Mortgage Broker with Next Door Mortgages, BFL Dominion Lending Centres, at 780-720-8240.
Want me to walk you through it? Call 780-720-8240 or register and I will call you — I will try to call you this week; reply with a good time.
By Travis Bannert, Realtor and Mortgage Broker
Travis Bannert, Mortgage Broker | Next Door Mortgages, BFL Dominion Lending Centres | 780-720-8240 | nextdoormortgages.com