Is a T5008 capital gains or investment income?

The short answer, and it surprises people

A T5008 is neither. It is a record of a disposition, not a determination of how that disposition is taxed.

CRA's own page for individuals puts it plainly. The slip "reports the amount paid or credited to you for securities you disposed of or redeemed during the year," and "these transactions may be on account of income or capital."

There is no box that makes the call. Box 15 carries a securities type code such as SHS for shares, MFT for mutual fund trust units or OPC for option contracts, but that tells you what was sold, not how it is taxed. Nothing on the slip distinguishes an investor's capital gain from a trader's business income.

Why your tax software makes you choose

Most people arriving at this question are staring at a dropdown. When a T5008 is imported through Auto-fill my return, the software cannot infer the character of the trade any more than CRA can, so it asks.

In TurboTax Canada, the reported behaviour is that after import you select from a type of income dropdown whose options include "Capital Gains" and "Investment Income," and the slip is ignored by the software until you do. Other Canadian consumer products handle it differently. Wealthsimple Tax places T5008 data in a securities transactions section that is summarised into the capital gains section, and directs people trading as a business to the business income section instead.

The important point is that the prompt is not the software being unhelpful. It is passing on a decision that the tax system genuinely leaves to the taxpayer.

How the determination is actually made

CRA's guidance on this sits in Interpretation Bulletin IT-479R, Transactions in Securities. IT-479R is archived, and no income tax folio has replaced it, but CRA's current T5008 guide still points to it, so it remains the working reference.

Paragraph 11 sets out the factors CRA weighs when deciding whether a taxpayer's securities transactions are on income account:

• Frequency of transactions. A history of extensive buying and selling, or quick turnover.
• Period of ownership. Securities usually held only a short time.
• Knowledge of the securities market. Whether the taxpayer has some knowledge of or experience in securities markets.
• Relationship to ordinary business. Whether the transactions form part of the taxpayer's ordinary business.
• Time spent. Whether a substantial part of the taxpayer's time is spent studying markets and investigating potential purchases.
• Financing. Whether purchases are financed primarily on margin or some other form of debt.
• Advertising. Whether the taxpayer has advertised or otherwise made it known that they will buy securities.
• Nature of the shares. Whether the shares are normally speculative in nature or of a non-dividend type.

Paragraph 10 gives the summary test. Where a taxpayer's conduct shows they are dealing in securities in a way capable of producing gains, of the same kind and carried on in the same fashion as a trader or dealer, the proceeds are normally business income.

No single factor decides it. A salaried professional who makes twenty trades a year and holds for months is on capital account. Someone trading full time on margin, all day, with quick turnover, is a much harder case to argue.

Where each answer goes on your return

Our guide to reporting a T5008 on Schedule 3 walks through the mechanics of the capital-account path, including the worked example and the Auto-fill double-counting trap.

The section 39(4) election, and why it is permanent

If you want certainty rather than a facts-and-circumstances argument, ITA subsection 39(4) offers it. Filing Form T123, Election on Disposition of Canadian Securities, deems every Canadian security you own in the year of the election, and in every later year, to be capital property.

A "Canadian security" is defined in subsection 39(6). It covers a share of the capital stock of a corporation resident in Canada, a unit of a mutual fund trust, and a bond, debenture, bill, note, mortgage, hypothec or similar obligation issued by a person resident in Canada. Prescribed securities are excluded.

Three things about this election catch people out.

• It is irrevocable. It cannot be rescinded, and it binds every subsequent year.
• It is not selective. It applies to all of your Canadian securities, not just the one you name on the form.
• It does not reach everything. Non-Canadian securities, commodities, futures and currency stay outside it, and their character remains a question of fact.

Subsection 39(5) bars some taxpayers from making it at all. A trader or dealer in securities, a bank, a trust company authorized to offer trustee services to the public, a credit union, a non-resident, an insurance corporation, and a corporation whose principal business is lending money or purchasing debt obligations are all excluded.

Instruments that do not follow the default

• Short sales. Normally treated on income account, unless a valid 39(4) election covers them. A short-sold Canadian security does fall within the definition of a Canadian security.
• Options. Whether gains and losses on share option transactions are income or capital is a question of fact. CRA's position is that ordinary taxpayers are generally entitled to capital treatment on share option transactions, while dealers are on income account.
• Written options. An option you write is reported on a T5008 in the year it is written. The later expiry or exercise of an option is not a reportable T5008 transaction at all, which is one reason your slips will not match your trading history line for line.

What choosing wrong actually costs

No single CRA page sets this out, so treat what follows as our analysis rather than a quotation.

Choosing income when the trades are genuinely capital overstates your taxable income immediately, because the whole gain is included rather than half of it. That error costs you money in the filing year and is unlikely to be caught by anyone but you.

Choosing capital when the activity is genuinely a business understates income and invites reassessment. It also has a second effect people rarely anticipate. It puts you inside the superficial loss rule, which defers losses you would otherwise have deducted in full.

That second point runs the other way too, and it is genuinely counterintuitive. If you are on income account, the superficial loss rule does not apply to you at all. There is no capital loss for it to deny, so your losses are ordinary business losses, deductible in full, with no 61-day window to track.

How ActiveACB handles this

ActiveACB calculates on capital account. It pools your adjusted cost base across accounts, applies the superficial loss rule, adjusts for return of capital and reinvested distributions, and produces the Schedule 3 figures. Run your own broker export through the ACB calculator. Your first calculation is free.

That makes it the right tool if your trades are capital-account transactions, which covers the large majority of Canadian investors filing their own returns. If your activity is genuinely a trading business on income account, the reporting framework is different and a capital gains calculator is not what you need.

The engine does not make the capital-versus-income determination for you, because it is a question of fact about your conduct rather than about your trade data.

Frequently asked questions