Unless you win back all the lost amount on the casino, the profit is not deducted by government. The main point is to be profitable in the gambling, even if I had to pay the 10% of the total winnings, I agree to pay the required amount to avoid the hassle. Depending on the point of the view, your account is also risk-free from gambling scam since they are also interested to be regulated by government to show the truthfulness of the gambling platform, IMHO.