In 2026, Canadian lenders qualify you at the greater of your contract rate plus 2% or 5.25% (the stress test), cap your housing costs at roughly 39% of gross income (GDS) and your total debts at 44% (TDS). Your maximum purchase price is whatever mortgage those limits support at the stress-test rate, plus your down payment — minus the effect of CMHC insurance if you’re putting down less than 20%.
That’s four interacting rules, which is why two households with the same income can qualify for very different amounts. The fastest way to see your own number is to run it: the affordability calculator applies all four rules at once.
The stress test: you qualify at a higher rate than you pay
Since OSFI’s minimum qualifying rate rules, every federally regulated lender must test whether you could afford your mortgage at the greater of your contract rate plus 2 percentage points, or 5.25%. If you’re offered 4.5%, you’re assessed at 6.5%. You never pay the stress-test rate — but it decides how much you can borrow, and it’s the single biggest reason buyers qualify for less than the mortgage a simple payment calculator implies.
GDS and TDS: the two ratios lenders actually check
Lenders run two affordability ratios against your gross income. GDS (gross debt service) covers housing costs only — mortgage payment at the stress-test rate, property tax, heat, and half of condo fees where applicable — and for insured mortgages is capped at 39% of gross income. TDS (total debt service) adds every other debt payment you carry (car loans and leases, student loans, credit card and line-of-credit minimums) and is capped at 44%. Whichever ratio binds first sets your ceiling — which is why paying down a $600/month car loan can add meaningfully more to your budget than a small raise.
Down payment rules and the $1.5 million insured cap
The legal minimum down payment in Canada is 5% of the first $500,000 of the purchase price plus 10% of the portion between $500,000 and $1.5 million. Above $1.5 million, insured mortgages aren’t available at all, so the minimum becomes a full 20%. On a $900,000 GTA home, the minimum works out to $65,000 — but remember that minimum-down purchases carry the largest insurance premiums.
CMHC insurance: what putting less than 20% down really costs
| Down payment | Premium (added to mortgage) |
|---|---|
| 5% – 9.99% | 4.00% of the loan |
| 10% – 14.99% | 3.10% of the loan |
| 15% – 19.99% | 2.80% of the loan |
| 20%+ | No insurance required |
The premium isn’t paid in cash — it’s added to your mortgage and amortized with it, which slightly reduces your maximum purchase price and means you pay interest on the premium for the life of the loan. First-time buyers and new-construction purchases that qualify for a 30-year insured amortization pay a further 0.20% premium surcharge.
Don’t forget land transfer tax — it’s cash on closing
Ontario charges land transfer tax on a sliding scale (0.5% to 2.5% marginally, with 2.0% applying between $400,000 and $2 million), and buying within the City of Toronto means paying a second, municipal land transfer tax on top — effectively doubling the bill for most price points. First-time buyers get back up to $4,000 provincially and up to $4,475 on the Toronto tax. Unlike CMHC premiums, this can’t be rolled into the mortgage — it’s cash due on closing, so budget it alongside your down payment using the land transfer tax calculator.
The practical order of operations
Run the affordability calculator to get your realistic ceiling, sanity-check the monthly payment at your actual rate with the mortgage payment calculator, then add land transfer tax and closing costs to see the true cash you need. Only then start shortlisting neighbourhoods — shopping above your stress-tested ceiling is how buyers fall in love with homes they can’t finance.
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Frequently asked questions
What is the mortgage stress test rate in 2026?
The minimum qualifying rate for uninsured mortgages is the greater of your mortgage contract rate plus 2% or 5.25%, set by OSFI and reviewed at least annually. You pay your contract rate, but you must qualify at the higher one.
How much income do I need to buy a home in the GTA?
It depends on your down payment, debts and rate, because lenders cap housing costs at roughly 39% of gross income (GDS) and total debts at 44% (TDS) at the stress-test rate. An affordability calculator that applies these rules gives a realistic ceiling for your specific numbers.
Can I still get an insured mortgage over $1 million?
Yes — since the insured cap was raised to $1.5 million, homes between $1M and $1.5M can be bought with less than 20% down (10% on the portion above $500,000). Above $1.5 million, a 20% down payment is mandatory.
How much is land transfer tax in Toronto?
Ontario charges a provincial land transfer tax on a marginal scale from 0.5% to 2.5%, and purchases within the City of Toronto pay a second municipal tax with matching brackets (plus higher luxury tiers above $3 million). First-time buyers can receive rebates of up to $4,000 provincially and $4,475 municipally.
Sources
- Minimum Qualifying Rate for Uninsured Mortgages — Office of the Superintendent of Financial Institutions. Accessed 28 August 2026.
- Ontario Land Transfer Tax Rates and Toronto Land Transfer Tax — Ratehub.ca. Source for LTT brackets and first-time buyer rebate amounts. Accessed 28 August 2026.
- CMHC Mortgage Insurance Premium Tiers (2026) — Canadian Money Help. Source for premium tiers, minimum down payment rules and the $1.5M insured cap. Accessed 28 August 2026.
Related reading & tools
- Mortgage Affordability Calculator
- Mortgage Payment Calculator
- Land Transfer Tax Calculator
- All free calculators & tools
- AI Home Valuation vs a Realtor CMA vs a Bank Appraisal
About the author — Jatin Dua, Etobicoke real estate agent
I’m a licensed Realtor with RE/MAX Quantum Realty at 799 The Queensway in Etobicoke. I work with buyers, sellers and investors across Mimico, Humber Bay Shores, New Toronto, Long Branch, Alderwood and the Stonegate–Queensway corridor, and across the wider GTA — both condo and freehold.
Questions about your specific property? connect@jatindua.com or 437-987-1925.