What is the difference between taxable and non-taxable gambling winnings in Canada?

Most people asking this question are really wondering: do I have to tell the CRA about my casino winnings? The honest answer is that for the vast majority of recreational players in Ontario, the answer is no — but there is a meaningful exception that can flip that entirely, and it hinges on how you gamble, not how much you win.

The Default Rule: Casual Gambling Winnings Are Not Taxable

The CRA explicitly lists lottery winnings of any amount as non-taxable — unless the prize can be considered income from employment, a business or property, or a prize for achievement. That same principle extends to casino and other gambling winnings for recreational players. Lottery and certain other winnings are non-taxable in Canada — however, if the taxpayer is in the business of gambling, the proceeds and losses must be considered for income tax purposes.

So if you play slots, blackjack, or poker on a licensed Ontario platform for entertainment and happen to have a good night, you don't owe tax on what you pocket. The size of the win is irrelevant to this analysis — a $500 win and a $50,000 win are treated identically if you're a recreational player.

The Exception That Changes Everything: Gambling as a Business

The line gets drawn when gambling stops being a pastime and starts resembling a livelihood. Whether a taxpayer's activities constitute carrying on a gambling business is a question of fact that can be determined only by an examination of all of the circumstances and the taxpayer's entire course of conduct.

Although no single factor is conclusive, the CRA considers: the degree of organization in the pursuit of the activity, the existence of special knowledge or inside information that reduces 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.

A player who treats poker or sports wagering as a structured, disciplined income source — tracking results methodically, applying consistent strategy, and relying on it to cover living expenses — looks very different to the CRA than someone who plays recreationally a few times a month. If the CRA determines you are carrying on a gambling business, your net winnings become taxable business income. The flip side: losses from that business may then be deductible, which is something a recreational gambler cannot claim.

One Critical Nuance: What You Do With the Winnings

Even if your original winnings are non-taxable, any income you generate by investing them is not. Income earned on non-taxable amounts is taxable — for example, any interest that you earn when you invest lottery winnings must be reported on your return. Park your casino winnings in a savings account or invest them in securities, and the interest, dividends, or capital gains those winnings generate are fully reportable in the ordinary way.

What About Winnings from U.S. Casinos?

Ontario players who gamble while visiting the United States sometimes face withholding tax at the source. If you received U.S. lottery or gambling winnings, you do not report this income on your Canadian income tax return as it is not taxable in Canada — and you cannot claim a credit for any taxes withheld on these winnings. Recovering withheld U.S. tax is a separate process handled through the IRS, not the CRA.

The Bottom Line

For recreational players on Ontario's regulated platforms, gambling winnings are not income and require no reporting. The situation changes — potentially significantly — if your gambling activity has the hallmarks of a business. If you're unsure which side of that line you fall on, a Canadian tax professional is the right person to ask; the CRA's own guidance acknowledges the determination is highly fact-specific.

If gambling is ever feeling less like entertainment and more like something you can't step away from, ConnexOntario (1-866-531-2600) offers free, confidential support around the clock.