What the Down Payment Number Leaves Out
Ask anyone how much you need to buy a house in Canada and you'll get one number back: the down payment. It's the number that gets quoted in comment sections, the number a friend tells you over coffee, the number that feels like the whole answer. It isn't. It's the biggest single line item, but it's not the bill, and the gap between the two is exactly where a lot of first-time buyers get caught off guard, usually right around the time they can least afford a surprise.
Here's what actually sits around that one number.
The down payment itself, and it's tiered
Start with the part everyone gets mostly right: minimum down payment in Canada is 5%, but only up to a point. The real rule is tiered:
- 5% on the portion of the price up to $500,000
- 10% on the portion between $500,000 and $1.5 million
- 20% minimum on anything $1.5 million and up, and at that price you're financing the whole thing as a conventional mortgage, no insured option available at all
So a $700,000 home isn't 5% down. It's 5% of the first $500,000 ($25,000) plus 10% of the remaining $200,000 ($20,000), $45,000 total, not the $35,000 a flat 5% would suggest. That gap alone catches people who did the math once, early, and never redid it once they saw what actually fit their budget.
Put down less than 20%, and there's a second cost you're financing for years
This is the part that gets left out of almost every "how much do I need" conversation. Anything below 20% down legally requires mortgage default insurance, through CMHC or one of the private insurers. It's not optional and it's not a scare tactic, it's how insured mortgages work in Canada.
The premium is calculated as a percentage of your mortgage amount, and it doesn't usually show up as a cheque you write. It gets added to the mortgage itself, so instead of one visible cost, it becomes a slightly bigger number on every single payment for the life of the loan. That's the trick of it: because it's folded in rather than billed separately, it barely registers as a cost at all, even though it's real money over 25 years.
Then there's everything that shows up at closing, separate from the down payment entirely
Land transfer tax (provincial, and municipal too if you're buying in a city like Toronto), legal fees, a home inspection, title insurance, an adjustment for prepaid property tax or utilities the seller already covered. None of these come out of your down payment. They're cash you need on top of it, due on closing day, and the total is often a few thousand dollars that nobody mentioned when they told you "you need 5% down." Some provinces offer a first-time buyer rebate on land transfer tax, which helps, but it's a partial offset, not a replacement for budgeting the cost. Rates and rebates vary by province and city, so check the specific numbers for where you're buying rather than assuming they match a friend's experience somewhere else.
The FHSA changes the math, but only if you've already started the clock
If you haven't used one yet, the First Home Savings Account is worth understanding before you're deep into the rest of this. Up to $8,000 a year, $40,000 lifetime, tax-deductible going in like an RRSP, tax-free coming out like a TFSA when it goes toward a qualifying first home. The part that trips people up: your room doesn't start the day you turn 18 or the day you decide you're serious about buying. It starts the day you actually open the account. Wait a few years to open one and you don't get to backdate the room, it's just gone. Opening it now, even with a small amount in it, is what starts the clock while the rest of your plan comes together.
Why all of this adds up to more than "save 5%"
None of these costs are hidden, exactly. They're all publicly documented, all explainable by a mortgage broker or a lawyer if you ask. What's missing isn't information, it's the habit of adding them up before you're already committed to a price range. The down payment number is the one that gets repeated because it's simple and it's the biggest single figure. The insurance premium, the closing costs, the FHSA timing rule, those all live in separate conversations that don't happen until later in the process, often once you're already attached to a specific home.
The fix isn't complicated: before you set a price range, run the real total, tiered down payment, insurance if you're under 20% down, closing costs, and check where your FHSA room actually stands. Doing that early changes your search range. Doing it at the pre-approval stage just changes your stress level.
If you'd rather not build that spreadsheet yourself, that's the actual reason I built Harmony Budget. You tell it your city and your situation, it works out your real down payment number and your FHSA room, and tracks your progress toward it month over month. harmonybudget.com
General information only, not financial or legal advice. Down payment tiers, CMHC insurance rules, and FHSA figures reflect the rules current as of 2026. Land transfer tax rates, rebates, and closing costs vary by province and municipality, confirm the specifics for your location with your lender and lawyer before making a decision.