What should I do if I am unsure whether my level of online casino play makes me a casual gambler or something the CRA might view differently?

Plenty of Ottawa players have quietly wondered this — especially after a solid run at the tables — so let's cut straight to what the CRA's own published guidance actually says, because the answer is more nuanced than most people expect.

The default rule: gambling winnings are not taxable income

Lottery and gambling winnings are generally not subject to income tax unless, in the case of gambling winnings, the amounts are earned by the taxpayer through carrying on a business. Canadian courts have generally held that gambling winnings are not considered a "source" of income for tax purposes unless they were earned through the carrying on of a business. That covers the vast majority of recreational players — someone who logs into a registered Ontario site a few evenings a week, enjoys slots or blackjack, and wins or loses without any systematic approach is almost certainly a casual gambler in the CRA's eyes.

When the line can shift

An individual's gambling activities may result in taxable business income or a business loss if those activities constitute a source of income — that is, carrying on the business of gambling. Determining the commerciality of gambling can be challenging. The CRA's own Income Tax Folio and audit manual identify specific factors auditors look at:

• The degree of organization present in the pursuit of the activity by the taxpayer.
• The existence of special knowledge or inside information that enables the taxpayer to reduce the element of chance.
• The taxpayer's intention to gamble for pleasure as compared with any intention to gamble for profit as a means of gaining a livelihood.
• The extent of the taxpayer's gambling activities, including the number and frequency of bets.

If a taxpayer is in the business of gambling, proceeds and losses are considered for income tax purposes. This may include skill-based activities such as poker, which may constitute a business of gambling when conducted in a sufficiently organized and commercial manner. Relevant factors include profit intention, frequency and time devoted, level of organization, reliance on skill, and whether the activity is a primary source of income.

In practice, the exceptional cases where gambling activities have been held to be taxable relate to taxpayers who applied inside information, knowledge, and skill to their activities. Pure chance games — slots, roulette, most casino staples — are the hardest to characterize as a "business" precisely because there is no skill component that can be systematically exploited. A poker player who treats the game as a disciplined, profit-driven enterprise sits in a genuinely different position than someone who plays for entertainment.

What to do when you're unsure

If your play has become frequent, large-scale, or you find yourself thinking of it as a primary income source, a few practical steps make sense:

• Keep records. Your transaction history on any regulated Ontario site is already logged — your account statements show deposits, withdrawals, and session activity. If you ever need to demonstrate your playing pattern to the CRA, that data is your evidence.
• Speak to a tax professional. This is genuinely a grey area in Canadian tax law, and the facts of your specific situation — volume, game type, organization, intent — determine the answer. A chartered professional accountant (CPA) familiar with Canadian tax is the right person to assess your position. The CRA's published guidance is a starting point, not a substitute for advice tailored to your circumstances.
• Consult the CRA directly if needed. The CRA offers a general enquiries line and, for more complex situations, a formal advance ruling process — though rulings on gambling characterization are uncommon. Still, the option exists.

One thing worth knowing: any interest you earn when you invest gambling winnings must be reported on your return — even if the winnings themselves were non-taxable. So if a big session's proceeds sit in a savings account and generate interest, that interest is taxable regardless of its origin.

Finally, make sure you're playing on a site that's actually registered in Ontario — check the full list of registered operators at the iGaming Ontario registry. Regulated sites carry both the iGaming Ontario and BetGuard logos, which is the clearest signal you're in the right place. And if gambling has started to feel less like entertainment and more like an obligation, ConnexOntario (1-866-531-2600) is available around the clock — that call is free and confidential.