How Much House Can I Afford on C$100,000 Income in Canada?
Under Canada's 32% GDS rule, a household earning C$100,000 a year can spend up to C$2,667/month on housing. After the mortgage stress test at 7.24%, that supports a home price of about C$344,825 with 15% down.
C$345,000
Max Home Price
C$2,667
Max Monthly Housing (GDS)
C$52,000
Down Payment
7.24%
Stress Test Rate
Canada's GDS/TDS Rules vs. US 28/36 DTI
Gross Debt Service (GDS) — 32%
The GDS ratio limits your mortgage principal and interest, property taxes, and heating costs to 32% of your gross monthly income. On C$100,000/year, that is C$2,667/month. This is similar to the US "front-end" 28% rule, but set higher at 32% for insured Canadian mortgages.
Total Debt Service (TDS) — 40%
The TDS ratio adds all other monthly debt obligations (car loans, student debt, credit cards) to housing costs. The maximum TDS is 40% for insured mortgages and up to 44% for conventional mortgages — equivalent to the US "back-end" 36% rule but more flexible.
OSFI Stress Test: Canada requires all mortgage applicants to qualify at max(contract rate + 2%, 5.25%). At today's rates, the qualifying rate is 7.24%, even if your actual rate is lower. This significantly reduces maximum purchasing power compared to face-value rate calculations.
How Interest Rates Change What C$100,000 Can Buy in Canada
Canadian lenders qualify you at the greater of your contract rate + 2% or 5.25% (OSFI minimum qualifying rate), on a 25-year amortization. Figures assume 15% down and no other debts.
| Contract rate | Stress-test rate | Max loan | Max home price |
|---|---|---|---|
| 3.99% | 5.99% | C$329,000 | C$387,000 |
| 4.49% | 6.49% | C$314,000 | C$369,000 |
| 4.99% | 6.99% | C$300,000 | C$353,000 |
| 5.49% | 7.49% | C$287,000 | C$337,000 |
| 5.99% | 7.99% | C$274,000 | C$323,000 |
Canadian Affordability Calculator
Maximum Home Price
C$345,000
Based on GDS 32%
CMHC Insurance Required
With 15% down, CMHC mortgage insurance applies. At this down payment tier, the CMHC premium is added to your mortgage balance — not paid at closing. Check the current CMHC premium tables (2.80%–4.00% depending on exact down payment) when budgeting.