Any money earned through gambling, whether it be at an online casino or a land-based casino, is taxable. This means that any winnings you take home from an online casino (known officially as “gambling income”) will be taxed. Any money you earn from gambling, including wins made on jackpots, wagers, scratch cards, and lotteries, must be declared to the IRS. It is important that you fully understand the laws related to taxes and gambling before playing.