What is the best way to discuss my online gambling winnings with a Canadian tax professional?

Most Ottawa players sitting down with a tax professional for the first time don't realize the conversation is simpler than they expect — at least to start. Canadian tax law treats gambling winnings differently from almost every other windfall, and knowing the baseline before you walk in saves time and avoids confusion on both sides.

The default position: winnings aren't income

Lottery and gambling winnings are generally not subject to income tax in Canada, unless 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 earned through the carrying on of a business, and they have therefore generally not been taxed under the Canadian income tax system. So for the vast majority of Ottawa players — people who play slots, blackjack, or roulette on a licensed Ontario site for entertainment — there's nothing to report and no tax owing on what they win.

That said, the line between "recreational gambler" and "person carrying on a business of gambling" is exactly what your tax professional needs to help you assess. 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 looks at factors including the degree of organization present in the pursuit of the activity, 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 compared with any intention to gamble for profit as a means of gaining a livelihood, and the extent of the gambling activities, including the number and frequency of bets.

Where skill-based play complicates things

If a taxpayer is in the business of gambling, their proceeds and losses must be 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. If you're a high-volume poker player who tracks results systematically, plays with a clear profit motive, and treats it like a second income — that's a conversation your accountant needs to have with you carefully, because the CRA's own audit guidance flags exactly that profile.

One important side note: income earned on gambling winnings is taxable. For example, any interest you earn when you invest those winnings must be reported on your return. So even if the win itself is tax-free, what you do with the money afterward can create a taxable event.

What to bring to the meeting

The single most useful thing you can do before meeting your tax professional is pull your transaction history from the Ontario-licensed site where you played. Because Ontario's regulated operators — the ones displaying both the iGaming Ontario and BetGuard logos — are required to maintain verified player accounts, your deposit and withdrawal records are already tied to your identity. That paper trail is exactly what a CRA auditor would look for, and it's what your accountant needs to assess your situation accurately. Relevant details include the type and frequency of gaming or betting, minimum, maximum, and average gaming losses or bets, source of funds used to place wagers, frequency of wins versus losses, and minimum, maximum, and average gaming wins.

Be upfront about the full picture — wins and losses. A taxpayer may often recall wins but have to be prompted to recall losses. Your accountant can only give you an accurate read if they see both sides. Bring a clean summary, not just the highlights.

One practical tip for Ottawa residents: look for a CPA with experience in personal tax situations involving non-employment income. Gambling taxation sits in a grey zone that not every generalist tax preparer has worked through before. The CRA's own Income Tax Folio S3-F9-C1 (freely available on Canada.ca) is the authoritative technical reference on this topic — worth reading before your appointment so you can ask sharper questions. If you ever feel like gambling is becoming more than a pastime, ConnexOntario (1-866-531-2600) is there — and Ontario's regulated sites give you built-in tools like deposit limits and self-exclusion through BetGuard to help you stay in control.