Sportsbetting, online poker, and casino are all tax free for Estonian tax residents, but only EU regulated platforms.Which countries allow foreigners and or citizens to sports or casino gamble tax free!
I know only so much that Ive come across helping some pro poker players and sportsbettors relocate and optimize taxes, but perhaps this will help: The Gambling Law Review - The Law Reviews: TitleIndeed. There are so many ifs and buts in tax law that someone would be crazy to give a definitive answer, especially when you add gambling to the mix. The general rule is that intra-EU/EEA gambling is tax free. But exceptions apply here and there.
For example, if you're a professional gambler, it might be considered taxable income. That's the case in Australia, Canada, and a few other places, where gambling winnings are otherwise not considered income and therefore not taxed.