Basically you don't have to pay tax on gambling or betting winnigs from other countries in EU, if EU-country you are living doesn't tax those winnings. But, but....
Example. In Finland all lotto, bingo, and betting wins are tax free, so I don't have to pay tax if I withdraw some winnings from abroad.
EU General advocat has said that, but Finnish shithead politicans still try to tax those winnings. One woman made a holiday trip from Finland to Sweden and won on lotto. I'm not sure, but I think that the case will go to the higher court later, but a stituation right now is that WINNINGS ARE TAX FREE.
Scorpion, if you are thinking which country to move, it's England. Their betting and gambling policy is a lot above other countries.