Most people arrive at this question with a number already in their head, usually twenty per cent, and usually wrong. The minimum down payment in Alberta is not a flat percentage of the purchase price. It is tiered, the tiers changed in December 2024, and at least one federal government page is still publishing the pre-2024 rule alongside the new one.
This matters in dollars. On a $600,000 Calgary home, guessing a flat five per cent leaves you $5,000 short at the worst possible moment.
What the minimum down payment actually is
The Department of Finance states the rule in two lines. Five per cent on the portion of a purchase price up to $500,000, and ten per cent on the portion of a purchase price between $500,000 and $1.5 million.
Read that carefully, because the word doing the work is portion. The ten per cent does not apply to the whole price. It applies only to the part above $500,000.
Worked out in dollars
The federal consumer agency publishes two examples. On a $400,000 home the minimum is five per cent of the whole amount, which is $20,000. On a $600,000 home you add two figures: five per cent of the first $500,000, which is $25,000, plus ten per cent of the remaining $100,000, which is $10,000. The minimum is $35,000.
The same arithmetic on prices Calgary buyers actually see:
| Purchase price | Calculation | Minimum down payment |
|---|---|---|
| $400,000 | 5% of $400,000 | $20,000 |
| $500,000 | 5% of $500,000 | $25,000 |
| $569,800 | $25,000 + 10% of $69,800 | $31,980 |
| $600,000 | $25,000 + 10% of $100,000 | $35,000 |
| $744,300 | $25,000 + 10% of $244,300 | $49,430 |
| $1,000,000 | $25,000 + 10% of $500,000 | $75,000 |
Two of those prices are not arbitrary. $569,800 was the benchmark price of a typical Calgary home in August 2026, and $744,300 was the benchmark for a detached house, both from the Calgary Real Estate Board. A buyer looking at a typical detached home in this city needs roughly $49,430 to clear the minimum.
Above $1.5 million the rule changes completely
A mortgage cannot be insured when the property is worth $1.5 million or more. Since insurance is what makes a down payment below twenty per cent possible, the practical effect is that buyers above that line need a full twenty per cent.
This cap was $1 million until December 15, 2024, when it rose to $1.5 million. The government's own example at the time was that the minimum down payment on a $1.4 million home fell by up to $165,000 overnight.
Be careful with what you read elsewhere on this. The federal consumer agency's down payment page still contains a line saying mortgage loan insurance is not available when "the purchase price of the home is $1 million or more". That sentence contradicts the bracket table printed further up the same page, and it contradicts the Department of Finance. It is the old cap. Any site that copied it is telling you a rule that stopped being true, and some of them are still ranking.
Do you need twenty per cent
No, and for most first-time buyers in Calgary the answer is not close. Twenty per cent is not a legal minimum. It is the threshold at which mortgage loan insurance stops being required.
If your down payment is less than twenty per cent, you will normally have to buy that insurance. The thing worth understanding, and the thing the name hides, is who it protects. Mortgage loan insurance protects the lender if you stop making payments. It does not protect you. It is not life insurance and it will not cover your payments if you lose your job.
Your lender may also require it even at twenty per cent down, typically if you are self-employed or have a thin or damaged credit history.
What the insurance costs
The premium is a percentage of the mortgage amount, and the federal consumer agency states the range as 0.6 per cent to 4.5 per cent. The smaller your down payment, the higher the rate.
We are not publishing a band-by-band rate table here. CMHC is the issuer and the authority on its own rates, and its site could not be read directly at the time of writing, so the only premium figures below are the government's own worked examples rather than numbers copied from another brokerage's blog.
On a $400,000 home, assuming a four per cent interest rate and a 25-year amortization with the premium added to the mortgage:
| Down payment | Amount | Mortgage | Insurance premium | Total cost of the home |
|---|---|---|---|---|
| 5% | $20,000 | $380,000 | $15,200 | $643,649 |
| 10% | $40,000 | $360,000 | $11,160 | $625,712 |
| 20% | $80,000 | $320,000 | Not required | $584,979 |
The gap between the first row and the last is $58,670 over the life of the mortgage. That is the real price of a smaller down payment, and it is worth knowing before you decide that waiting two years to save more is not worth it. Sometimes it is. Sometimes the rent you pay while saving costs more than the premium, which is a calculation only your own numbers can settle.
The Alberta advantage nobody mentions
Ontario, Manitoba and Quebec apply provincial sales tax to the insurance premium, and that tax cannot be added to the mortgage. It has to be paid in cash on closing day.
Alberta does not charge it. An Alberta buyer and an Ontario buyer with identical purchases and identical premiums do not pay the same amount of cash at closing, and the Alberta buyer pays less. National guides written from Toronto rarely mention this, because from where they sit it is simply a cost everyone has.
Alberta has no land transfer tax either, which is the larger version of the same story. Alberta charges land titles registration fees instead, and those are a fraction of what a comparable Ontario purchase costs.
Thirty-year amortizations, and who qualifies
Also effective December 15, 2024, thirty-year amortizations became available on insured mortgages. A longer amortization lowers the monthly payment and raises the total interest paid over the life of the loan. It buys breathing room, not savings.
Two conditions have to be met. The loan to value must be greater than eighty per cent, which simply means you are putting down less than twenty per cent, and the borrower must be either a first-time home buyer or buying a newly constructed home.
First-time buyer means more than it sounds like
This is the part worth reading closely, because the ordinary meaning of the phrase is narrower than the actual rule. A borrower qualifies if any one of the following is true.
- They have never purchased a home before.
- In the last four years, they have not occupied a home as a principal place of residence that either they or their current spouse or common-law partner owned.
- They have recently experienced the breakdown of a marriage or common-law partnership.
The second point means previous homeowners can become first-time buyers again. If you sold in 2021 and have rented since, you may well qualify. The third means a separation can restore eligibility, following the same approach the Canada Revenue Agency takes for the Home Buyers' Plan.
A great many people who assume they are disqualified are not. It costs nothing to check.
What counts as newly constructed
The home must not have been previously occupied for residential purposes. The rule explicitly does not exclude new condominiums where there has been an interim occupancy period, which is the common arrangement in Calgary towers where buyers move in before the building formally registers.
Passing the stress test
Having the down payment is not the same as qualifying for the mortgage. Federally regulated lenders must apply a stress test, which the Office of the Superintendent of Financial Institutions calls the minimum qualifying rate.
You have to qualify at the greater of your contract rate plus two per cent, or 5.25 per cent. If your lender offers you 4.4 per cent, you must prove you could carry payments at 6.4 per cent. If you are offered 3 per cent, the floor of 5.25 per cent applies instead.
This is why buyers are approved for less than they expect. The test is deliberately conservative, and OSFI reviews both the buffer and the floor at least once a year.
One useful exception exists. The stress test is not applied to uninsured straight switches at renewal, meaning you move your existing mortgage from one federally regulated lender to another without increasing the amortization or the loan amount. Before November 2024 that test kept people from shopping their renewal. It no longer does.
Where the money is allowed to come from
The minimum down payment normally has to come from your own resources. Saved cash counts. So do registered savings.
The Home Buyers' Plan lets a first-time buyer withdraw up to $60,000 from an RRSP, raised from $35,000 in Budget 2024, repaid over fifteen years. Two qualifying buyers purchasing together can each withdraw, which is $120,000 between them.
The First Home Savings Account can be combined with it, and that combination is the single most effective structure available to a first-time buyer in Canada right now, because FHSA contributions are deductible going in and withdrawals are not taxed coming out.
If you are self-employed or your credit history is weak, expect to be asked for more than the minimum. Lenders price for risk, and the minimum is a floor set by regulation rather than a promise made to you.
The short version
Five per cent on the first $500,000 and ten per cent on the portion above it, to a ceiling of $1.5 million, above which you need twenty per cent. Under twenty per cent down means insurance that protects your lender rather than you, at somewhere between 0.6 and 4.5 per cent of the mortgage, with no provincial sales tax on it because you are in Alberta. Qualify at your rate plus two per cent, or 5.25 per cent, whichever is higher. And check the first-time buyer definition before assuming it excludes you, because it is broader than it sounds.