By How Much House Can You Afford in Canada? The 32% and 39% Rules With Examples
On a $100,000 gross household income in Canada, the classic affordability rule allows $2,667 a month for housing — and after $500 a month for property tax and heating, that leaves $2,167 for a mortgage payment. At the stress-test qualifying rate used in the worked example below, that payment supports a mortgage of about $339,000, or a purchase price of about $423,000 with 20% down. The second number in the headline matters just as much: 39% is not a target, it is the maximum Gross Debt Service (GDS) ratio Canada Mortgage and Housing Corporation (CMHC) allows for an insured mortgage. This guide explains both numbers, the total-debt rules, the stress test, and worked examples at $75,000, $100,000 and $125,000.
The two GDS numbers: 32% is the guideline, 39% is the ceiling
Lenders do not start with the price of the house. They start with two ratios that compare your debts to your gross (before-tax) income.
Gross Debt Service (GDS) is your housing costs divided by your gross income. Housing costs are your mortgage principal and interest payment, property taxes, heating costs, and 50% of any condo or strata fees. The federal Homebuying Step by Step guide published with CMHC sets the affordability rule at 32%: keep monthly housing costs at or below 32% of your average gross monthly income and the home should be affordable without crowding out the rest of your life.
CMHC’s insured-mortgage ceiling is higher, at 39%. That is the most a lender can approve when the mortgage needs default insurance — not a recommendation. Many lenders use tighter internal limits, especially for uninsured mortgages; strong credit and a larger down payment can move an approval closer to the ceiling.
Total Debt Service (TDS) adds everything else. It is your housing costs plus car loans or leases, credit card payments, student loans, lines of credit and any other debt payments, divided by gross income. The matching affordability guideline is 40%, and CMHC’s insured ceiling is 44%.
| Ratio | What it counts | Affordability guideline | CMHC insured maximum |
|---|---|---|---|
| GDS | Mortgage payment, property tax, heating, 50% of condo fees | 32% | 39% |
| TDS | All GDS costs plus every other debt payment | 40% | 44% |
Read the table this way: aim for the left-hand limits when you choose a price, and understand that the right-hand limits are the lender’s outer fence. A home that only works at 39% and 44% leaves almost no room for a rate increase at renewal, a car repair, or a drop in income. For a broader walk-through, see our existing guide to mortgage affordability in Canada.
The stress test: you qualify at a higher rate than you pay
Both ratios are tested at a qualifying rate, not at the rate on your contract. Under the federal stress test, you must qualify at the higher of your contract rate plus 2 percentage points, or 5.25%. If a lender offered you an illustrative 4.00% rate, you would be tested at 6.00%. You would pay at 4.00%, but the lender would only approve an amount whose payment at 6.00% still fits inside your GDS and TDS limits.
That gap is large. On a $100,000 mortgage with a 25-year amortization, the payment is about $526 at 4.00% and about $640 at 6.00%, using the standard Canadian semi-annual compounding formula — so the stress test cuts the mortgage you can qualify for by roughly one-sixth. These rates are illustrations only. One exception: since November 21, 2024, a straight lender switch at renewal, with no increase in balance or amortization, no longer requires re-qualifying at the stress-test rate. That does not apply to a new purchase.
Worked example: a $100,000 household, step by step
Take a household earning $100,000 a year, buying a house (not a condo, so no condo fees), with estimated property tax of $350 a month and heating of $150 a month, and no other debts for the first pass.
| Step | Calculation | Result |
|---|---|---|
| Gross monthly income | $100,000 / 12 | $8,333 |
| Housing budget at the 32% guideline | $8,333 x 32% | $2,667 per month |
| Less property tax and heating | $2,667 – $350 – $150 | $2,167 left for the mortgage payment |
| Mortgage that payment supports at the 6.00% qualifying rate, 25 years | $2,167 / $639.81 x $100,000 | About $339,000 |
| Purchase price with 20% down | $339,000 / 80% | About $423,000 |
| Purchase price with the minimum down payment on that price | 5% of $423,000 = $21,150 down; mortgage about $402,000 before insurance premium | Does not fit — see below |
The last row is the lesson most first-time buyers miss. A smaller down payment means a larger mortgage, and that mortgage must still pass the same $2,167 payment limit at the qualifying rate. With 5% down on a $423,000 home, the mortgage would be about $402,000 — plus a default-insurance premium, because any down payment under 20% requires insurance — and its qualifying payment would be well over $2,167. A larger down payment, not a larger approval, is what closes that gap.
At the 39% ceiling, the same household gets $3,250 a month for housing, leaving $2,750 for the mortgage payment and supporting about $430,000 at the qualifying rate — roughly $91,000 more mortgage. But that means 39 cents of every gross dollar goes to housing before food, transport or savings. The ceiling suits very strong files; it is a poor budget for most households.
Run your own version quickly with the free calculators at MyFinancesGuru Tools, using the qualifying rate — contract plus 2%, with a 5.25% floor — rather than the advertised rate.
What the same rules give you at $75,000 and $125,000
| Gross household income | Housing budget at 32% | After tax and heating* | Mortgage supported at 6.00% qualifying rate | Approx. price with 20% down |
|---|---|---|---|---|
| $75,000 | $2,000 per month | $1,600 | About $250,000 | About $313,000 |
| $100,000 | $2,667 per month | $2,167 | About $339,000 | About $423,000 |
| $125,000 | $3,333 per month | $2,733 | About $427,000 | About $534,000 |
*Illustrative deductions: $400 a month at $75,000, $500 at $100,000 and $600 at $125,000 for property tax and heating combined. Your municipality’s tax rate and your home’s heating cost will change these numbers. All prices are illustrations at the stated qualifying rate and a 25-year amortization, not a lender pre-approval.
Two patterns stand out. Every extra $25,000 of gross income adds roughly $667 a month of housing room at 32%. And property tax is not a footnote: a home with $200 a month more tax supports roughly $31,000 less mortgage at the qualifying rate, on the same income.
How other debts shrink your approval: the TDS test in action
Return to the $100,000 household. Its TDS guideline room is 40% of $8,333, or $3,333 a month for housing plus all other debts.
- No other debts: housing can use the full GDS room of $2,667, because $2,667 is below the $3,333 TDS limit. GDS is the binding rule.
- A $500 car payment and $100 of card and loan payments: TDS leaves $3,333 – $600 = $2,733 for housing — still slightly above the GDS room, so the approval barely changes.
- $900 a month of other debts: TDS leaves only $3,333 – $900 = $2,433 for housing. Now TDS binds, tax and heating leave just $1,933 for the mortgage payment, and the supported mortgage falls to about $302,000 at the qualifying rate.
That is why paying off a car loan or a credit card before you apply can raise your approval more than a small raise at work. Removing $300 a month of debt payments frees the same TDS room as roughly $9,000 a year of extra gross income at the 40% guideline. Redirecting small savings helps too — switching to a no-fee chequing account frees $200 to $360 a year that can go straight to a debt payment.
Down payment and insurance: the other half of the price
Your ratios decide the mortgage. Your savings decide whether that mortgage is available at the price you want. The minimum down payment in Canada is:
| Purchase price | Minimum down payment | Example |
|---|---|---|
| Up to $500,000 | 5% of the price | $500,000 home: $25,000 |
| $500,000 to $1,500,000 | 5% on the first $500,000 plus 10% on the rest | $800,000 home: $25,000 + $30,000 = $55,000 |
| Above $1,500,000 | 20% — default insurance is not available | $1,600,000 home: $320,000 |
The insured price cap was raised from $1 million to $1.5 million on December 15, 2024. If your down payment is under 20%, default insurance from CMHC, Sagen or Canada Guaranty is mandatory, and the premium is added to your mortgage: 4.00% of the mortgage at 5% to 9.99% down, 3.10% at 10% to 14.99% down, and 2.80% at 15% to 19.99% down. On a $500,000 home with 5% down, that premium is $19,000 on a $475,000 mortgage — a real cost of buying sooner with less saved.
First-time buyers and buyers of a new build can also use a 30-year insured amortization since December 2024, which lowers the payment used in the ratios; most other insured buyers are capped at 25 years. Tax-sheltered savings change the down payment itself — see our 2026 TFSA room guide and our guide to opening an FHSA before December 31, 2026. Budget closing costs on top: land transfer tax, legal fees, appraisal and inspection commonly add roughly 1.5% to 4% of the price.
Common mistakes that inflate the number on a listing site
- Using the rate you will pay instead of the qualifying rate. Affordability calculators that size your loan at 4.00% when you must qualify at 6.00% overstate your mortgage by roughly one-sixth.
- Treating 39% and 44% as targets. Those are CMHC’s insured ceilings. The affordability guidelines are 32% and 40%, and your own budget may need to be lower still if you have child care, high commuting costs or variable income.
- Forgetting tax, heating and condo fees. They sit inside GDS before the mortgage payment gets a dollar. Half of condo fees count, which is why a condo with $600 monthly fees supports a smaller mortgage than a house at the same price.
- Ignoring debts because the house “just fits.” TDS counts them all. A $900-a-month debt load cut the example household’s supported mortgage from about $339,000 to about $302,000.
- Counting a bonus, overtime or a new job at full value. Lenders typically want a history for variable income and may average two years. Ask how yours will be treated before you rely on it.
Frequently asked questions
Is the rule in Canada 32%, 39%, or both?
Both, for different jobs. The 32% GDS figure is the federal affordability guideline for housing costs as a share of gross income. The 39% figure is CMHC’s maximum GDS for an insured mortgage. Aim for 32% or below when you budget; 39% is the most a lender can approve with insurance, not a target.
How much income do I need for a $500,000 home in Canada?
It depends on your down payment, debts, property tax and the qualifying rate. As an illustration at a 6.00% qualifying rate with 20% down ($100,000), the $400,000 mortgage costs about $2,559 a month; adding $500 for tax and heating gives $3,059 of housing costs, which needs roughly $114,700 of gross income at the 32% guideline, or roughly $94,100 at the 39% ceiling. With the minimum down payment the mortgage and insurance premium are larger, so the income needed is higher.
What is the minimum down payment for a house in Canada in 2026?
Five per cent on the first $500,000 of the price, plus 10% on any portion between $500,000 and $1,500,000. Above $1,500,000, default insurance is not available and you need at least 20%. Anything under 20% down requires mortgage default insurance, with the premium added to the mortgage.
How does the mortgage stress test change how much I can afford?
You qualify at the higher of your contract rate plus 2 percentage points or 5.25%, while paying your contract rate. In the examples here, qualifying at 6.00% instead of paying 4.00% lowers the mortgage a given payment can support from about $412,000 to about $339,000 for the $100,000 household — roughly a one-sixth reduction.
Do condo fees count against how much house I can afford?
Yes. Fifty per cent of the monthly condo or strata fee is included in your housing costs for GDS, along with the mortgage payment, property taxes and heating. A $600 monthly fee therefore uses $300 of your housing room before the mortgage itself.
Can I afford more if I pay off my car loan first?
Usually, yes, if TDS is your binding limit. Other debts are added to housing costs in TDS, capped at a 40% guideline and a 44% insured maximum. Removing $300 a month of payments frees the same TDS room as about $9,000 a year of extra gross income at the 40% guideline.
The bottom line: start with 32% of your gross monthly income for housing and 40% for housing plus all debts, test the payment at your contract rate plus 2% (with a 5.25% floor), and only then look at prices. On $100,000, that disciplined math points to about a $339,000 mortgage — the 39% and 44% ceilings can stretch it to roughly $430,000, but they are the lender’s outer fence, not a household budget.
