Editorial guide
5%, 10% or 20% down payment? The true hidden cost.
The CMHC premium is rarely scrutinized — yet it transforms an 'affordable 5%' into a noticeably larger total principal. Here are the exact numbers on a $500k home.
2. Concrete math on $500k
| Metric | 5% down | 10% down | 20% down |
|---|---|---|---|
| Down payment (cash) | $25,000 | $50,000 | $100,000 |
| CMHC premium capitalized | $19,000 | $13,950 | $0 |
| Total principal financed | $494,000 | $463,950 | $400,000 |
| Monthly payment | $3,034 | $2,849 | $2,456 |
| Interest over 5 years | $129,017 | $121,169 | $104,467 |
Reading: moving from 20% to 5% down saves $75,000 cash upfront — but adds $19,000 CMHC premium to the loan and lifts the monthly payment by $577/mo.
3. HBP — underused lever
The Home Buyers’ Plan (HBP) lets each person withdraw up to $60,000 tax-free from RRSP for the down payment, repaid over 15 years. Ceiling raised from $35k to $60k in 2024. Couple can mobilize up to $120,000 — enough to hit 20% on a $500k home and skip CMHC entirely.
4. Verdict by profile
First-time buyer wanting to enter fast
5% — premium amortizes lightly monthly
On $500k, 5% down CMHC premium is roughly $19,000 capitalized, translating to a modest premium-attributable monthly bump. To buy now rather than rent 2 more years, the math often tilts to 5%.
First-time buyer who can wait 6-12 months
10-20% depending on local market
In Montreal/Quebec City where 2026 prices stabilize, waiting to go from 5% to 10% lowers CMHC premium from 4% to 3.1% and reduces monthly PMT. Above 20%, no premium at all.
2nd-home buyer in QC
20% mandatory
No longer first-time. CMHC insurance is generally unavailable for a 2nd home — minimum 20% down, and 20% of total price once it exceeds $1M (CMHC rule).
Rental investor
20% mandatory (owner-not-occupied)
For non-owner-occupied rentals, CMHC is unavailable. Minimum 20% down, often 25% at some lenders for 3-4 unit multifamily.
5. Frequently asked questions
- What is the exact CMHC premium by LTV?
- 2024 public schedule: LTV ≤ 65% = 0.60%; 65-75% = 1.70%; 75-80% = 2.40%; 80-85% = 2.80%; 85-90% = 3.10%; 90-95% = 4.00%. So 5% down (95% LTV) = 4.00% premium on the financed principal. Premium is typically capitalized (spread over amortization).
- How does the HBP (Home Buyers’ Plan) work in 2026?
- HBP lets each person withdraw up to $60,000 ($120,000 per couple) tax-free from RRSP for down payment, to be repaid over 15 years. Ceiling rose from $35k to $60k in 2024.
- Can the down payment come from a gift?
- Yes — a gift from a direct family member is eligible at most Canadian lenders, with a gift letter confirming no repayment obligation. Gifts typically do not cover closing costs.
- What about properties > $1M?
- CMHC rule mandates 20% of total price once the property exceeds $1,000,000, with no CMHC insurance available. For a $1.2M property, minimum down is $240,000.