Updated Checked by the Tax-Services.ca editorial team How we check
There is no separate short term gains tax in Canada. The CRA sends every sale through Schedule 3 and line 12700, and the pages we read mention no holding period. On a $10,000 gain, an Ontario earner on $80,000 pays about $1,482 if it is a capital gain and about $2,965 if the CRA treats it as business income.
Is there a short term gains tax in Canada?
Searches for this phrase often come from the United States, where holding time changes the rate. Canadian returns work differently, so don’t carry those rules across. Here, a gain from selling property goes on Schedule 3, and the taxable amount lands on line 12700 of your return. Whether you held the shares for nine days or nine years, the gain is worked out the same way.
Only a part of the gain is normally taxable. The CRA’s page on capital losses and deductions (dated February 5, 2026) shows an inclusion rate of one half for every year from 2001 to 2025. No CRA page we read prints a 2026 rate, but one half stands: the March 21, 2025 announcement cancelled the proposed rise to two thirds, and Finance Canada’s release of September 15, 2026 lists the cancellation again. For the federal side of the same rule, see our page on federal capital gains tax.
How is a quick sale taxed?
Your taxable gain is added to your other income for the year and taxed at your usual rates. Because it stacks on top, it lands at the highest rate you already pay. The federal rates for 2026 are below.
| Taxable income | Federal rate |
|---|---|
| Up to $58,523 | 14% |
| $58,523 to $117,045 | 20.5% |
| $117,045 to $181,440 | 26% |
| $181,440 to $258,482 | 29% |
| Over $258,482 | 33% |
Your province adds its own tax on top. The capital gains tax calculator does the whole sum, and the marginal tax rate calculator shows the rate on your next dollar.
What does a $10,000 gain cost in Ontario?
Say you earn $80,000 and sell shares for a $10,000 profit, half of it taxable. Your taxable income rises by $5,000 to $85,000. Using the tax engine behind our calculators, federal and Ontario tax together go up by about $1,482. You keep roughly $8,518.
Now count the same $10,000 in full as ordinary income, which is what business income would mean. Tax rises by about $2,965, so you keep about $7,035. That’s a difference of $1,483 on one trade, enough to hurt.
It’s a ballpark. The estimate uses basic personal amounts only, and it includes Ontario’s surtax and health premium the way the engine models them, so expect your own return to land near it rather than on it.
When could quick trades be business income?
This is the part that catches people. Selling within days doesn’t make a gain fully taxable. But the CRA can look at how often you trade, how you go about it and what you meant to do, and decide you’re running a business. We couldn’t find a fixed number of trades or days on the CRA pages we read, so there isn’t a safe line to quote.
If you trade a lot, check the CRA’s guidance on business income before you file. If you sell now and then, it is most likely a capital gain. If you are unsure, ask an accountant. It is one of the few cases where the cost is worth it, because the answer can double the tax, as the $1,482 and $2,965 above show. Our day trading taxes page looks at that line in more detail.
One last practical point for tax time: if you made several quick trades in the same stock, don’t net them in your head. List each sale separately, add them up, and let the form do the netting.
What records should you keep for each trade?
For every sale, note what you paid, what you sold for, the date of each, and any commission or fee. Those numbers decide your gain, and a day trader’s year can mean hundreds of lines. Most brokers give you a statement at year end, but check it against your own notes, especially after a transfer between brokers when the original cost can get lost.
What if you sold at a loss?
Capital losses can offset capital gains, and the CRA has a page on carrying unused losses to other years. That is the main reason to keep every trade record, including the ones that lost money. A net capital loss can go back three years or forward with no end date, but only against taxable capital gains, never against your salary. The CRA also describes a superficial loss: if you, or someone affiliated with you, buy the same or identical property within 30 days before or after the sale and still hold it 30 days after, the loss cannot be deducted. It is usually added to the cost of the new shares instead. A quick in and out trade is the wrong place to hunt for a tax break.
If you would rather hold shares inside registered accounts, the TFSA calculator and the RRSP calculator show how that money grows. Different rules apply inside them, so check the CRA pages for each account before you trade there. For a general view of how gains are taxed, see capital gains tax in Canada.
Where did we check this?
In November 2026 we read the CRA pages on capital losses and deductions and on line 12700 (both dated February 5, 2026), and the Prime Minister’s news release of March 21, 2025 on the cancelled rate rise. Federal brackets are from the CRA’s 2026 tax rates, as used across this site, and the 2027 brackets are not published yet. Our own arithmetic produced the dollar examples, so treat them as estimates. We did not find a fixed number of trades or days that makes trading a business. No level of government runs or endorses this site.
Frequently asked questions
Does Canada tax short term gains at a higher rate?
We found no separate short term rate on the CRA pages we read in November 2026. A gain goes on Schedule 3 whatever the holding time, and the taxable part is added to your income at your usual rates. The exception is when the CRA decides your frequent trading is a business, which changes how the whole amount is taxed.
How much of a capital gain is taxable in 2026?
Normally one half. The CRA shows 50% for losses and gains from 2001 to 2025, and we found no 2026 rate printed on a CRA page, so check before you rely on it. The proposed rise to two thirds was cancelled, as announced on March 21, 2025.
Where do I report a gain from selling shares?
Report it on Schedule 3, with the taxable amount carried to line 12700 of your return. Keep the cost, the sale price, the dates and any fees for every trade. A broker statement helps, but check it against your own notes, especially after a transfer between brokers.
Can I offset a gain with a loss?
Yes. Capital losses can be used against capital gains, and a net capital loss can be carried back three years or forward indefinitely, but only against taxable capital gains. Watch the superficial loss rule: buying identical shares within 30 days before or after the sale can deny the loss.
Can frequent trading count as business income?
It can, depending on the facts, such as how often you trade and what you meant to do. We found no set number of trades or days on the CRA pages we read, so there is no safe line. As the $1,482 and $2,965 examples show, the answer can double the tax, so ask an accountant if you trade a lot.
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