Capital gains tax is one of those topics that sounds complicated but is actually fairly simple once you understand the basics. In Canada, when you sell an investment or asset for more than you paid, only half of that profit is taxable — and it's taxed at your regular income tax rate. This article covers how capital gains tax works, how to calculate what you owe, the exemptions available to you, and strategies to reduce your tax bill.
What is capital gains tax?
Capital gains tax is the tax you pay on the profit from selling an investment or asset for more than its original purchase price. In Canada, 50% of that profit (the "taxable capital gain") is added to your income and taxed at your marginal tax rate.
Capital gains are often described as "realized" or "unrealized":
Realized capital gain. You actually sell an investment or asset for a profit — this is when the tax applies.
Unrealized capital gain. Your investments have increased in value, but you haven't sold them yet — no tax is owed until you sell.
One important thing to note: everyone's situation is unique, and you should always consult a tax professional to determine what works for your specific situation.
What is the capital gains tax rate in Canada?
There is no separate capital gains tax rate in Canada. Instead, a portion of your capital gain is added to your total income and taxed at your marginal income tax rate.
Currently, the Canada Revenue Agency (CRA) requires you to include 50% of your capital gains as taxable income. Your marginal rate depends on your total income and province of residence — it could range from roughly 20% to over 50%.
What is the capital gains inclusion rate?
The inclusion rate is the percentage of your capital gain that becomes taxable income. In Canada, the inclusion rate is 50% for individuals — meaning only half of your capital gain is subject to tax.
For example, if you sell an investment and realize a $10,000 capital gain:
Taxable capital gain. $10,000 × 50% = $5,000 added to your income.
Tax owed. $5,000 × your marginal tax rate (e.g., 30%) = $1,500.
The inclusion rate applies equally to all types of capital property — stocks, bonds, mutual funds, ETFs, real estate (excluding your principal residence), and other capital assets.
How to calculate tax on a capital gain
Before you calculate your capital gains, you need to find your adjusted cost base (ACB). ACB is your original purchase price, adjusted to include any additional purchase fees.
For example, say you bought 40 shares of $KALE for $10 each. One month later you bought 20 more shares at $12.50 each. Your cost base would be:
First purchase. 40 shares × $10 = $400
Second purchase. 20 shares × $12.50 = $250
Total ACB. $400 + $250 = $650
ACB per share. $650 ÷ 60 shares = $10.83
If you later sold 30 shares at $15 each, your proceeds would be $450. To find your capital gain, subtract your ACB ($10.83 × 30 = $324.90) from the proceeds: $450 − $324.90 = $125.10.
Many financial institutions track your capital gains and ACB for you. If you have a self-directed account, the key formula is: capital gain = proceeds of disposition − adjusted cost base.
Capital gains exemptions in Canada
Certain capital gains are partially or fully exempt from tax. The two most significant exemptions are:
Principal residence exemption. If the property you sell is your principal residence, the capital gain is fully exempt from tax. This applies to houses, condos, and cottages — provided the property qualifies as your primary home for each year you owned it.
Lifetime capital gains exemption (LCGE). If you sell qualifying small business corporation shares or qualifying farm or fishing property, you may be eligible for the LCGE. For 2026, the cumulative lifetime limit is $1,250,000. This exemption can significantly reduce the tax owed on the sale of a qualifying business.
Capital gains realized inside registered accounts — such as an RRSP, TFSA, or RESP — are also sheltered from capital gains tax while they remain in the account.
What is a capital loss?
A capital loss occurs when you sell an investment or asset for less than you paid for it. The silver lining is that capital losses can be used to offset capital gains, reducing the overall tax you pay.
The CRA allows you to apply capital losses against capital gains in the current year, carry them back to any of the previous 3 years, or carry them forward indefinitely.
How to reduce or avoid capital gains tax in Canada
You may not be able to fully avoid paying capital gains tax, but there are strategies you can use to reduce what you owe:
Offset your capital gains with capital losses
If you have both capital gains and capital losses in the same tax year, use the losses to offset the gains. If you only have a capital loss and no gains from the prior 3 years to apply it to, you can carry those capital losses forward to offset future capital gains.
Use a tax-sheltered account
Tax-sheltered accounts let you buy and sell investments with no tax consequences while your money remains inside them. Examples include:
Tax-Free Savings Account (TFSA)
Locked-In Retirement Account (LIRA)
Capital gains and losses inside these accounts don't affect your tax return until you withdraw your funds (and in the case of a TFSA, withdrawals are tax-free).
Donate assets to charity
Instead of donating cash, you can transfer ownership of stocks to a registered charity (an "in-kind" transfer). This avoids triggering a capital gain, because you are not selling the stock — and you receive a tax receipt for the current fair market value.
Consult a tax professional before pursuing this strategy, as there are specific procedures to follow.
Use tax-loss harvesting
"Tax-loss harvesting" means selling investments that have declined in value to generate a capital loss, which can then offset a capital gain. Some investment platforms automate this process for you.
Be aware of the "superficial loss" rule: the CRA will disallow a loss if you (or a person affiliated with you) buy back the same or an identical investment within 30 days before or after the sale. For example, you cannot sell an exchange-traded fund tracking the S&P 500 and then purchase a different ETF tracking the same index within that 30-day window.
Claim the principal residence exemption
Under Canada's tax laws, primary residences are exempt from capital gains tax. This includes a residence where your spouse, common-law partner, or children resided for part of the year. A cottage or summer home can also qualify, but investment properties and rentals do not.
How to report capital gains on your tax return
Capital gains and losses are reported on Schedule 3 of your Canadian income tax return. Here is a general overview:
Gather your records. Collect transaction records for the year, including purchase prices, sale prices, dates, and fees.
Calculate your gains and losses. For each disposition, subtract the ACB and any expenses from the proceeds of disposition.
Complete Schedule 3. Report each capital gain or loss in the appropriate section — there are separate sections for publicly traded shares, real estate, and other capital property.
Calculate your taxable capital gain. Add up your total capital gains, subtract your total capital losses, and multiply the net amount by the 50% inclusion rate.
Transfer to your return. Enter the taxable capital gain on line 12700 of your income tax return.
If you use tax-filing software, much of this is automated. Your brokerage may also provide a T5008 slip with the information you need.
The bottom line
Capital gains tax in Canada is straightforward once you understand the basics: only 50% of your gain is taxable, it's added to your income and taxed at your marginal rate, and there are several legal strategies to reduce what you owe. Whether you're selling stocks, mutual funds, or property, understanding how capital gains work can make a meaningful difference at tax time.
Everyone's financial situation is different, so it's always a good idea to speak with a tax professional for guidance specific to your circumstances.
