Sell within a year of buying? The CRA flip rule in Ottawa terms

The rule most Ottawa sellers have never heard of

If you sell a home you owned for less than 365 consecutive days, the Canada Revenue Agency treats your profit as business income, not a capital gain. That also kills the principal residence exemption on that sale. It applies to homes sold after January 1, 2023, and the CRA's own folio (Income Tax Folio S1-F3-C2, paragraphs 2.6.1 to 2.6.6) lays it out in plain language.

The loss side is the part people miss. The same rules say a business loss on a flipped property is deemed to be nil. So the gain is fully taxed and the loss is worth zero.

I sell houses, not tax advice. Everything below is arithmetic on public numbers and a summary of what the CRA publishes. Your accountant decides how it applies to you.

What the typical Ottawa home would have made

Take OREB's August 2026 benchmarks and ask what a buyer who paid the benchmark a year ago would be sitting on today. The year-ago price is today's benchmark divided by one plus the year-over-year change. OREB publishes the change to one decimal, so these are approximations.

Single family: $726,700 divided by 1.022 is about $711,057. The paper gain is roughly $15,640.

Townhouse: $547,300 divided by 0.96 is about $570,104. The paper change is a loss of roughly $22,800.

Apartment: $392,900 divided by 0.964 is about $407,572. The paper change is a loss of roughly $14,700.

Two of the three segments are underwater on a one year hold before anyone counts a single cost. And the one that is up has a problem too. Ontario land transfer tax on a $711,057 purchase is that price times 0.02, less $3,525, which comes to about $10,696. That is the same formula I used in the parent on title post. Take it off the $15,640 and you have roughly $4,950 left before commissions, legal fees, moving and a year of carrying costs. A typical single family buyer who flips in this market does not make money.

So for the average house, the flip rule is mostly academic. The market has already done the damage.

Who actually gets caught

The rule bites sellers whose result is not average. The buyer who picked up a house below market, the investor who renovated, the owner who bought a pre-construction unit and closed early. Those people have a real profit, and that is the profit the rule targets.

Run a made up one. You buy a single family at $711,000, put in a $40,000 kitchen and basement, and sell eleven months later for $800,000. After the land transfer tax, the renovation and your selling costs, say you clear $30,000. Under the principal residence exemption that is tax free. Under the flip rule it is $30,000 of business income, taxed at your marginal rate with no 50 per cent capital gains inclusion. At an illustrative 40 per cent marginal rate that is $12,000 to the CRA. Your rate will differ.

Now the same sale at day 366. The tax bill on that profit goes to zero, assuming the home really was your principal residence. If you are at day 340 and you can wait, 26 days of carrying cost against a possible five figure tax bill is a calculation worth doing. The mortgage interest and property tax on 26 days is a number you can look up. The tax bill is a number your accountant can estimate.

The exceptions list is real, and it is narrow

The folio lists life events that switch the rule off if the sale reasonably results from them: the death of you or a related person, a new household member such as a birth, an adoption or an elderly parent moving in, a breakdown of a marriage or common law partnership after at least 90 days of separation, a threat to your personal safety, a serious disability or illness, a job change that moves you at least 40 km closer to work, losing your job, insolvency, and expropriation or destruction of the property.

Notice what is not on it. A bigger place because prices dipped, a better school, a change of mind, a move from the east end to the west end. If you are going to rely on an exception, you want the paper trail written down before you list, not after the CRA asks.

Where this meets the Ottawa market

I wrote recently about two price indexes that disagree, and about townhouses holding tight inventory with weak prices. Those posts matter here. Townhouse buyers from a year ago are mostly looking at a loss, so the flip rule rarely costs them anything extra, but they cannot claim the loss either way on a home they lived in. Apartment owners are in the same spot. The sellers who need to count days are the ones with gains, and in this market that means single family owners and anyone who added real value.

If you own a place that is under a year old and you are thinking about selling, tell me the closing date you took ownership and we will count the days together before anything gets listed. A planned listing date is easy to move. A tax bill is not.

Call me at 613-262-6545 or write to fil@613realtor.ca. I would rather work out your day count over coffee than have you find out in April.