Illinois is an online gambling pioneer of sorts. Gaming Regulation Agency – Illinois Gaming Board.Sports Betting Legalization and Launch Dates – Sports betting was legalized in June 2019 retail and online sportsbooks launched in March 2020.College Sports Wagering Policy – Allows betting on college sports bettors must make wagers on in-state teams in person.Available Online Sports Betting Licenses – Up to 23 “Master Licenses” are available plus three mobile-only betting licenses.Online Gambling Revenue Tax Rates – 15% of gross gaming revenue.Legal Online Gambling Verticals – Online sports betting online lottery.Key Points for Online Gambling in Illinois This complete guide to Illinois sports betting includes links to a variety of new player bonus offers. sports betting markets in terms of handle. Fueled by legal online sports wagering, the Land of Lincoln competes among the top five U.S. The Illinois sports betting industry stands as one of the biggest markets in the U.S.