When you sell an investment — a stock, rental property, or business — for more than you paid, you've earned a capital gain. The CRA taxes a portion of that gain as income.
For a full list of CRA payment deadlines, use the free AINative Tax Deadline Calculator — it includes the April 30 capital gains payment date alongside all your other CRA dates.
Understanding how capital gains tax works in Canada is essential for investors, business owners, and anyone selling property. This guide explains the rules, the math, and the key exemptions that can reduce what you owe.
What Is Capital Gains Tax in Canada?
Capital gains tax in Canada works through an inclusion rate — only a percentage of your capital gain is added to your taxable income. The rest is tax-free.
For most individuals in 2026:
- 50% of capital gains are included in taxable income
- The included amount is taxed at your marginal income tax rate
For corporations and trusts:
- 2/3 (66.67%) of capital gains are included in taxable income (rate increased in 2024 budget for amounts above $250,000)
How to Calculate Your Capital Gain
Capital Gain = Proceeds of Disposition − Adjusted Cost Base (ACB) − Selling Expenses
Example:
- You sell shares for $50,000
- You originally paid $30,000 (your ACB)
- You paid $500 in brokerage fees (selling expenses)
- Capital gain = $50,000 − $30,000 − $500 = $19,500
At the 50% inclusion rate:
- Taxable capital gain = $9,750
This $9,750 is added to your income for the year and taxed at your marginal rate.
Canadian Capital Gains Tax Calculator
While we don't display specific tax rates (they vary by province and income bracket), the formula is consistent:
1. Calculate your capital gain: Proceeds − ACB − Selling Expenses = Capital Gain
2. Apply the inclusion rate: Capital Gain × 0.50 = Taxable Capital Gain (for individuals)
3. Apply your marginal rate: Taxable Capital Gain × Your Marginal Rate = Tax Owing
Your combined federal and provincial marginal rate on the included gain can range from approximately 22% to 54% depending on your province and income level. Use the CRA's income tax calculator for a personalized estimate.
The Principal Residence Exemption
If you sell your primary home, you may qualify for the principal residence exemption — one of the most valuable tax breaks in Canada. If the property was your principal residence for every year you owned it, the entire capital gain is exempt from tax.
Even if you didn't live there every year (for example, you rented it out for a period), you may still qualify for a partial exemption using the CRA's formula.
You must report the sale on your T1 return in the year it occurs, even if the gain is fully exempt. File Schedule 3 and designate the property as your principal residence.
Lifetime Capital Gains Exemption (LCGE)
If you sell qualifying small business corporation shares or qualifying farm and fishing property, you may be eligible for the Lifetime Capital Gains Exemption — sheltering up to $1,250,000 of capital gains from tax in 2026.
This is a major planning tool for small business owners. To qualify, the corporation must meet CRA's definitions of a Canadian-Controlled Private Corporation (CCPC) and the shares must pass various tests.
Consult a tax professional if you're planning to sell a business — the LCGE can save you hundreds of thousands in taxes if structured correctly.
Capital Losses: How They Work
If you sell an investment for less than you paid, you have a capital loss. Capital losses can offset capital gains in the same year, reducing your tax. If losses exceed gains, the net capital loss can be:
- Applied to capital gains in the 3 prior tax years
- Carried forward indefinitely to offset future capital gains
Capital losses cannot offset other types of income (employment income, business income, etc.) — only capital gains.
When Do You Pay Capital Gains Tax?
Capital gains are reported on your T1 personal income tax return for the year in which the disposition (sale) occurred. The balance owing is due:
- April 30 for most Canadians
- June 15 if you or your spouse are self-employed (but payment is still due April 30)
Use the free AINative Tax Deadline Calculator to track your capital gains payment deadline alongside all your other CRA dates.
Capital Gains Tax Quick Reference
| Scenario | Inclusion Rate | Key Exemption | |----------|---------------|---------------| | Stocks, ETFs, mutual funds | 50% | Capital loss carryover | | Primary residence | 50% | Principal residence exemption (often 100%) | | Rental property | 50% | None (unless designated principal residence) | | Small business shares | 50% (2/3 for corps) | Lifetime Capital Gains Exemption up to $1.25M | | Cryptocurrency | 50% | None |
Important Disclaimer
This guide is for informational purposes only. Capital gains tax rules are complex and fact-specific. Always consult a qualified CPA or tax professional before making investment decisions or reporting capital transactions.
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