The taxability of gambling winnings from online casinos varies depending on the country or region where the player is located. In general, if gambling is legal and regulated in a particular jurisdiction, then gambling winnings may be subject to taxation.
In the United States, for example, gambling winnings are generally considered taxable income and must be reported to the Internal Revenue Service (IRS) on a player’s tax return. This applies to both online and land-based gambling winnings. In most European and other countries, gambling winnings are generally not taxable, regardless of whether they were won at a land-based casino or online casino.