How much does a $900,000 mortgage cost?
A $900,000 mortgage is the reality for many buyers in Toronto and Vancouver, and increasingly in Ottawa and Calgary’s premium markets. At this amount, even small rate differences have massive cost implications — a 1% difference in rate changes your total cost by over $150,000.
At today’s typical fixed rates (around 4.5%–5.5%), monthly payments range from $4,980 to $5,493 on a 25-year amortization. Over the life of the mortgage, you’ll pay between $594,000 and $748,000 in interest alone depending on your rate. Here’s exactly what you’re looking at.
Down payment scenarios for a $900K mortgage
The amount of your down payment determines whether your mortgage is insured or uninsured, which affects your rate and total costs.
| Purchase Price | Down Payment | Down Payment % | Mortgage Amount | CMHC Insurance | Insured? |
|---|---|---|---|---|---|
| $947,400 | $47,400 | 5% on first $500K, 10% on rest | ~$900,000 | ~$35,820 | Yes (insured) |
| $1,000,000 | $100,000 | 10% | $900,000 | ~$27,900 | Yes (insured) |
| $1,125,000 | $225,000 | 20% | $900,000 | $0 | No (uninsured) |
| $1,200,000 | $300,000 | 25% | $900,000 | $0 | No (uninsured) |
Key distinction: Homes at or above $1 million require a minimum 20% down payment and cannot be insured by CMHC. Insured mortgages often get slightly lower rates from lenders because CMHC backs the risk. If your purchase price is under $1M, insuring may actually save you money despite the insurance premium.
Monthly payments at every rate
| Interest Rate | 25-Year Monthly | 30-Year Monthly | Difference |
|---|---|---|---|
| 3.00% | $4,259 | $3,793 | $466 |
| 3.50% | $4,494 | $4,041 | $453 |
| 4.00% | $4,734 | $4,296 | $438 |
| 4.50% | $4,980 | $4,560 | $420 |
| 5.00% | $5,234 | $4,831 | $403 |
| 5.50% | $5,493 | $5,110 | $383 |
| 6.00% | $5,758 | $5,397 | $361 |
| 6.50% | $6,029 | $5,689 | $340 |
| 7.00% | $6,306 | $5,989 | $317 |
Monthly payments include principal and interest only. Property taxes, insurance, and condo fees are additional.
Total cost of a $900,000 mortgage
| Interest Rate | Total Paid (25-yr) | Total Interest (25-yr) | Total Paid (30-yr) | Total Interest (30-yr) |
|---|---|---|---|---|
| 3.00% | $1,277,700 | $377,700 | $1,365,500 | $465,500 |
| 4.00% | $1,420,200 | $520,200 | $1,546,600 | $646,600 |
| 5.00% | $1,570,200 | $670,200 | $1,739,200 | $839,200 |
| 6.00% | $1,727,400 | $827,400 | $1,942,900 | $1,042,900 |
| 7.00% | $1,891,800 | $991,800 | $2,156,000 | $1,256,000 |
Key takeaway: At 5%, a $900K mortgage costs over $1.57 million total. At 7% over 30 years, total interest exceeds $1.25 million — that’s 1.4× the original mortgage amount paid in interest alone.
How your payments break down over time
Here’s how a $900,000 mortgage at 5% (25-year amortization) breaks down:
| Year | Annual Interest | Annual Principal | Remaining Balance |
|---|---|---|---|
| 1 | $44,370 | $18,440 | $881,560 |
| 5 | $40,850 | $21,960 | $802,500 |
| 10 | $35,100 | $27,710 | $688,500 |
| 15 | $27,450 | $35,360 | $541,800 |
| 20 | $17,330 | $45,480 | $352,100 |
| 25 | $4,230 | $58,580 | $0 |
25-year vs 30-year amortization
| Feature | 25-Year | 30-Year |
|---|---|---|
| Monthly payment (at 5%) | $5,234 | $4,831 |
| Total interest paid | $670,200 | $839,200 |
| Extra cost of 30-year | — | +$169,000 |
| Equity after 5 years | ~$97,500 | ~$65,100 |
| Who it’s for | Faster payoff, lower total cost | Lower monthly payments, more cash flow |
How payment frequency affects costs
| Frequency | Payment Amount | Annual Cost | Amortization | Interest Saved |
|---|---|---|---|---|
| Monthly | $5,234 | $62,808 | 25 years | — |
| Bi-weekly | $2,617 | $68,042 | 25 years | $0 |
| Accelerated bi-weekly | $2,617 | $68,042 | ~22 years | ~$75,600 |
Strategies to reduce your mortgage cost
- Choose a shorter amortization — 25 years instead of 30 saves $169,000 on a $900K mortgage at 5%
- Make accelerated bi-weekly payments — saves ~$75,600 and cuts 3 years off your amortization
- Use prepayment privileges — a $30,000 annual lump sum saves ~$120,000+ in interest
- Shop for a lower rate — 0.25% lower saves approximately $40,500 over 25 years
- Increase payments when you can — a $500/month increase saves ~$42,000 in interest
Insurance and qualification considerations
- Stress test — at this level, you must qualify at rate + 2% or 5.25%, whichever is higher — meaning qualify for payments of ~$6,500+/month
- Minimum income — most lenders require GDS ratio under 39% and TDS under 44%
- If your home is over $1 million — must put 20%+ down (uninsured), meaning this $900K mortgage comes from a $1.125M+ home
- If your home is under $1 million — you could potentially have an insured mortgage with lower rates
Who carries a $900,000 mortgage?
A $900,000 mortgage almost always means a purchase price of $1 million or more with 10–20% down. Since CMHC insurance is not available above $1 million, buyers must bring at least 20% to the table if the purchase price crosses that line, which at $900,000 borrowed implies a $1.125 million home. This sits above the current GTA average of $1,003,956 (-4.54% YoY) and the Vancouver composite benchmark of $1,088,800 — in both cities, $900K finances a detached home in a family-oriented neighbourhood, a premium townhouse, or a large condo in a prime building. In Calgary, where the provincial Alberta benchmark sits at $508,100 and Calgary’s own benchmark is $565,600, a $900K mortgage buys deep into the luxury tier — nearly double the going rate for a typical detached home.
Income requirements:
| Scenario | Required Household Income | Assumption |
|---|---|---|
| $900K mortgage, no other debts | ~$200,000 | GDS ratio under 39% |
| $900K mortgage + $600/mo car payment | ~$215,000 | TDS ratio under 44% |
| $900K mortgage + $600 car + $400 student debt | ~$230,000 | TDS ratio under 44% |
| Stress test qualification amount | ~$6,500/mo payment | At qualifying rate of ~7%+ |
Most borrowers at this level are dual-income professionals, executives, or business owners. A single income of $200,000+ puts you in roughly the top 2% of individual earners in Canada.
Real cities where a $900,000 mortgage fits today
| City | July 2026 Benchmark/Average Price | Fits a $900K Mortgage? |
|---|---|---|
| GTA (Toronto) | $1,003,956 average (-4.54% YoY) | Yes — close match with 10–15% down |
| Vancouver | $1,088,800 composite | Yes, with a typical down payment |
| Calgary | $565,600 benchmark (March 2026) | No — nearly double the going detached rate; luxury tier only |
Where a $900,000 mortgage applies
- Detached homes in the GTA — Oakville, Burlington, Richmond Hill, Markham
- Townhomes in central Toronto or Vancouver — midtown, east end, or Burnaby
- Luxury-tier homes in Calgary or Ottawa — well above the local benchmark price
- Move-up buyers — selling a condo or starter home with equity
Related pages
- Mortgage Cost Guide — All mortgage amounts compared
- $800K Mortgage Cost — One step down in borrowing
- $700K Mortgage Cost — More affordable tier
- Mortgage Calculator — Calculate payments for any amount and rate
- Mortgage Qualification Calculator — See how much you can borrow
- Mortgage Guide Canada — Everything about Canadian mortgages
- Pay Off Mortgage Faster — Strategies that work
- Insured vs Uninsured Mortgage — Key differences that affect your rate
- Interest Rate Forecast Canada — Where rates are heading