Do I have to pay tax on online casino winnings in Toronto?

For the vast majority of Toronto players, the answer is straightforward: no, you do not pay tax on online casino winnings. Canada treats gambling winnings as a windfall, not income — and windfalls are not taxable under Canadian tax law.

Lottery winnings of any amount are listed by the CRA among amounts that are not taxable, unless the prize can be considered income from employment, a business, or property, or a prize for achievement. The same logic extends to casino and online gambling winnings for the typical recreational player. Lottery and certain other winnings are non-taxable in Canada — however, if a taxpayer is in the business of gambling, proceeds and losses are considered for income tax purposes.

The one exception that actually matters: are you a "professional" gambler?

An individual's gambling activities may result in taxable business income or a business loss if the gambling activities constitute a source of income — that is, carrying on the business of gambling. Determining the commerciality of gambling can be challenging. In practice, the CRA looks at whether you're operating in a genuinely systematic, business-like way — not just whether you win consistently or play a lot. A recreational player who happens to run hot is not a gambling business. Someone who treats it as their primary occupation, maintains meticulous records, and applies a disciplined strategy might be assessed differently. This is a grey area; if you think it applies to you, a tax professional is the right call — not a casino review site.

What about investment income on your winnings?

One thing people miss: the winnings themselves aren't taxable, but what you do with them can be. Income earned on gambling or lottery winnings is taxable — for example, any interest that you earn when you invest those winnings must be reported on your return. So if you cash out $10,000 and park it in a GIC, the interest you earn on that GIC is ordinary income.

Playing on a regulated Ontario site

None of this changes based on which licensed Ontario platform you use. The tax treatment is set by federal law, not by the operator. That said, sticking to operators registered under iGaming Ontario matters for other reasons — player protections, dispute resolution, and responsible gambling tools. You can confirm a site is legitimate by looking for both the iGaming Ontario and BetGuard logos; their presence signals the site is managed by iGaming Ontario and regulated by the AGCO.

One practical note: casino and gaming winnings are generally paid out without formal identification of the winner, though certain platforms keep records of payouts over an established dollar amount. Online operators in Ontario's regulated market do maintain account-level transaction records, so if you ever need to document your activity — for any reason — your account history is your best resource.

Bottom line: keep your winnings, don't lose sleep over a tax bill on them, but do talk to a CPA if your gambling activity starts looking more like a business than a hobby. And as always, you must be 19+ to play on any Ontario-licensed platform — ConnexOntario (1-866-531-2600) is there if you ever need support.