Tax for gambling

How do government moniter the transactions on internet gambling , suppose if i am in US and i am playing on a european gambling site so , how do government tax me for that money ?

I don't even thin they tax you for that money. How can they when the only thing you are giving is your money? Your card infomation to gamble, correct

Yes , but i think if those sites who operate gambling must be under tax ,

[CENTER]clarify the US ban on online gambling[/CENTER]

President Bush signed a measure into law in October, prohibiting US banks and credit card companies from processing payments to online gambling businesses outside the country. The $12 billion Internet gambling industry is based outside the US, mostly in Britain, although half of its customers live in the USA.

A WTO panel opened the door in March to commercial sanctions against the US, ruling that the new law unfairly targets offshore casinos.

The twin island nation of Antigua and Barbuda in the Caribbean, for example, argues that online gambling had been providing income for hundreds of its citizens.

The Geneva-based global trade referee said Washington could restrict online gambling as long as the restrictions apply equally to US companies offering offshore betting on horse racing.