Understanding Capital Gains and Capital Losses in Canada

Capital gains are an important part of investment and property taxation in Canada. When a taxpayer sells or disposes of a capital asset, the transaction may result in either a capital gain or a capital loss. Understanding how capital gains are calculated and reported helps taxpayers accurately complete their tax returns.

What Is a Capital Gain or Capital Loss?

A capital gain occurs when the selling price of a capital asset is higher than its original cost. A capital loss occurs when the asset is sold for less than its cost.

Common examples of capital property include:

• Rental properties, including land and buildings.
• Stocks and bonds.
• Business properties, including land and buildings.

When capital property is sold or disposed of, the resulting gain or loss must be reported in the year of disposition using Schedule 3 of the T1 Income Tax Return.

Capital Gain vs. Business Income

Before applying capital gains rules, it is important to determine whether a gain is actually a capital gain or whether it should be treated as business income.

A capital gain must result from the disposition of property. Income from services, rent, dividends, or other investment activities is not considered a capital gain.

The CRA considers several factors when determining whether a transaction is capital or income in nature:

• Length of ownership: Property held for a short period with the intention of resale may be considered business income, while long-term holdings are more likely to be treated as capital investments.
• Frequency of transactions: Regular buying and selling of similar properties may indicate business activity rather than investment activity.
• Improvements and development work: Significant efforts to improve a property for resale may suggest a business activity.
• Reason for sale: An active campaign to sell a property may result in the gain being treated as business income.
• Connection with existing business: Transactions related to an existing business may be considered business income or loss.

Important Terms for Capital Gains Calculations

To calculate a capital gain or loss, taxpayers need to understand the following terms:

Adjusted Cost Base (ACB): The adjusted cost base is the original purchase price of the property plus eligible additional capital costs, such as certain improvements.

Proceeds of Disposition (POD): The proceeds of disposition represent the amount received from selling the property. Selling expenses, such as commissions, are reported separately on Schedule 3.

Deemed Proceeds of Disposition: In situations such as gifts, death, or non-arm’s length transactions, where there are no actual proceeds, the proceeds are generally considered to be equal to the fair market value of the property at the time of transfer.

Personal-Use Property and Principal Residence

Most taxpayers are not affected by capital gains rules for personal-use property because these assets are generally used for personal enjoyment.

A gain from the sale of a principal residence is generally not reported on a tax return if:

• The property was the taxpayer’s principal residence.
• The taxpayer or their family member did not designate another property as a principal residence during the same period.

Capital Gains Inclusion Rate

For the 2025 tax year, the capital gains inclusion rate is 50%. This means that only half of a capital gain is included in taxable income.

Similarly, only 50% of a capital loss becomes an allowable capital loss, which can be used against taxable capital gains.

How Capital Losses Are Used

Capital losses cannot generally be used to reduce employment income or other regular income. Allowable capital losses can be:

• Applied against capital gains in the current year.
• Carried back up to three years to offset previous capital gains.
• Carried forward indefinitely to reduce future capital gains.

Completing Schedule 3

Schedule 3 is used to report capital gains and losses from different types of property dispositions.

Taxpayers must report each transaction in the appropriate section and provide details such as:

• Description of the property.
• Date of purchase and sale.
• Adjusted cost base.
• Proceeds of disposition.
• Resulting capital gain or loss.

Final Thoughts

Understanding capital gains rules is essential for taxpayers who sell investments, real estate, or other capital property. Properly identifying whether a transaction is a capital gain or business income, calculating the adjusted cost base, and reporting transactions on Schedule 3 helps ensure accurate tax filing.

Maintaining detailed records of purchase costs, improvements, and selling expenses is also important to support capital gain or loss calculations in case of a CRA review.