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Each year, many Canadian investors receive tax slips summarizing income earned from investments. One document that may appear in accounts holding certain pooled investments or trusts is the T3 slip, formally known as the Statement of Trust Income Allocations and Designations.

A T3 slip explained in simple terms may help clarify how trust income, capital gains, dividends, and other allocations are reported to the Canada Revenue Agency (CRA) for tax purposes. The slip typically reflects a beneficiary’s share of income earned within a trust structure during the tax year, which may then be reported on a personal tax return.

In Canada, T3 slips commonly appear for holdings such as mutual fund trusts, real estate investment trusts (REITs), and certain estate or trust arrangements. These slips may include several income categories, along with related credits or adjustments that affect the tax treatment of investment income.

The sections below outline what the T3 slip represents, what types of income may appear, and how the boxes on the slip are generally structured.

What A T3 Slip Represents

A T3 slip reports income that may have been allocated from a trust to a beneficiary during a given tax year. In Canada, trusts may include investment structures such as mutual funds, real estate investment trusts, or certain estate arrangements that distribute income to investors.

When income is earned within the trust, it may be allocated to investors based on their beneficiary’s proportionate share. These allocations appear on the slip along with the trust account number, which identifies the trust that issued the document.

Examples of income that may appear include:

• Trust income allocations from investment funds
• Taxable capital gains generated inside the trust
• Eligible dividends from taxable Canadian corporations
• Foreign non business income or foreign business income
• Other income categories such as interest or business income

The document may also include adjustments that affect the adjusted cost base (ACB) of an investment, often referred to as a cost base adjustment.

Historically, these reporting rules have helped ensure that income earned within investment trusts is taxed at the beneficiary level rather than the trust itself in many situations.

Investments That May Generate A T3 Slip

Not every investment produces a T3 slip. Instead, the slip typically appears when an investor holds units of a trust that distributes income.

Common examples include:

• Mutual fund trusts held in non registered accounts
• Real estate investment trusts (REITs)
• Certain communal organization or pooled investment structures
• Estate or family trusts distributing income to beneficiaries

By contrast, investments held in registered accounts, such as a Registered Retirement Savings Plan (RRSP) or registered pension plan, often follow different tax reporting processes.

When investments appear within registered accounts, income may generally accumulate without being reported annually on a T3 slip because those plans often operate under separate tax rules established by the Canada Revenue Agency.

Key Income Categories On A T3 Slip

The statement of trust income may include multiple income types, each with distinct tax reporting rules. The categories on a T3 slip help identify how the income may be treated when reported on a personal tax return.

Capital Gains And Capital Property

Many trusts generate income through the sale of capital property, such as securities held within mutual funds or REIT portfolios.

These transactions may produce capital gains, which can appear on the T3 slip as:

• Eligible taxable capital gains
• Net taxable capital gains
• Taxable capital gains

In Canada, historical tax rules have required only a portion of realized capital gains to be included in taxable income. The slip may therefore report the taxable amount rather than the full gain.

In some cases, the slip may also reference capital gains eligible for specific deductions, such as a beneficiary’s capital gains deduction, depending on the trust structure.

Trust distributions may also include cost base adjustment entries, which may affect the adjusted cost base of the investment.

Dividends From Canadian Corporations

Trusts that hold shares of taxable Canadian corporations may distribute dividends to beneficiaries.

When this occurs, the T3 slip may show:

• Eligible dividends
• The related dividend tax credit

These entries reflect Canada’s integrated tax system, where dividends from Canadian corporations receive special treatment through the dividend tax credit mechanism.

The slip may also include entries such as eligible dividends or taxable Canadian corporations reported, which indicate the amount attributed to the beneficiary.

Foreign Income And Withholding Taxes

Some trusts invest in international securities. When this occurs, the T3 slip may include entries for:

• Foreign non business income
• Foreign business income
• Foreign business income tax or withholding taxes

These entries identify income earned from sources outside Canada. Historically, many foreign jurisdictions apply withholding taxes on income paid to foreign investors.

When these taxes appear on the slip, they may be reported separately to reflect the portion withheld by the foreign country where the income originated.

Examples of related reporting fields may include:

• Foreign business income
• Foreign non business income
• Withholding taxes

Trust Income And Other Allocations

Beyond dividends and capital gains, the slip may include several other income categories.

Examples may include:

• Business income generated by the trust
• Fishing income or resource-based income in specialized trusts
• Other income categories determined by trust activity

These values may appear under income allocations and designations, which show how the trust allocated income across beneficiaries.

Each beneficiary’s portion typically reflects their beneficiary code or particular beneficiary identification within the trust.

The document may also display:

• Beneficiary’s identification number
• Beneficiary spouse or joint beneficiary information
• Common law partner’s share where applicable

When a T3 Slip Is Typically Issued Or Received

The timing of a T3 slip may depend on several factors, primarily related to the trust’s tax year end and the internal processing schedule of the trust or issuer. Unlike some other tax documents, T3 slips may take additional time to prepare because trusts often compile multiple income sources, calculate allocated income, and determine applicable adjustments such as cost base adjustments or dividend tax credits.

Some factors that may influence when a slip is received include:

• Trust year-end: Trusts may have fiscal year-ends that differ from the calendar year. Slips typically reflect income earned during that tax year, and preparation may occur after the year-end is finalized.
• Issuer processing: Investment funds, mutual fund trusts, or other pooled investment structures may require additional time to aggregate all income components, including capital gains, foreign business income, and investment tax credit allocations.
• Workflow differences: Some trusts may prioritize processing for larger investor bases, while others may follow staggered reporting schedules. As a result, T3 slips may appear later than other common tax slips, such as T5 or T4.

It is also possible for T3 slips to be reissued or amended after the initial distribution if errors are discovered or adjustments are made. Beneficiaries should note that amended slips may replace or supplement previously issued versions to ensure accurate reporting of trust income allocations and related tax entries.

Amended Or Reissued T3 Slips (And Why Amounts Can Change)

A T3 slip may sometimes be amended or reissued if adjustments are required after the initial issuance. This can occur when income classifications, allocations, or other components are revised by the trust or issuer. Examples of adjustments may include changes to capital gains eligible, eligible dividends, foreign business income, or investment tax credit effective calculations.

When a T3 slip is reissued, the updated document typically replaces the prior version for record-keeping purposes. This ensures that the amounts reflected on the slip correspond with the trust’s finalized reporting and any required tax reporting adjustments.

Beneficiaries may notice that taxable capital gains, trust income, or other allocations differ between the original and amended slip. Notes or supplemental pages provided by the issuer often contain additional context explaining the changes, including details on cost base adjustment, income allocations and designations, or other relevant reporting fields.

Historical CRA guidance indicates that amended slips are a standard part of trust reporting workflows and may be issued whenever corrected or updated figures are needed.

T3 vs T5: What Is Different

The T3 slip and T5 slip both summarize investment income for a tax year, but they generally report different types of income.

T3 Slip

The T3 slip is typically issued by a trust to report a beneficiary’s share of trust income allocations and designations. This can include capital gains, eligible dividends, foreign business income, investment tax credits, and other distributions allocated to beneficiaries from mutual fund trusts, real estate investment trusts, or estates. The slip may also include cost base adjustment fields that affect the adjusted cost base of the investment.

T5 Slip

The T5 slip generally reports income from other investments outside of trust structures, such as interest income, dividends from taxable Canadian corporations, or certain foreign income earned in non-trust accounts.

It is possible for a single investor to receive multiple slips within the same year, including both T3 and T5 slips, depending on the types of holdings and income sources. Each slip contains specific boxes and codes corresponding to the nature of the reported income.

Understanding T3 Slips: A Summary

The T3 slip provides a record of income allocated from trusts to beneficiaries, covering items such as capital gains, eligible dividends, foreign income, and investment tax credits. Understanding the categories and boxes on the slip can help clarify how trust income is reported on a personal tax return. T3 slips may be issued, amended, or reissued depending on trust reporting adjustments, and they differ from T5 slips, which generally report other investment income. Beneficiaries may receive multiple slips in a year, reflecting different holdings or trusts. Reviewing notes and supplemental pages can provide additional context for reported amounts.