Betfair - What to Do With Winners?

betfair has been confronted with the universal problem for gaming companies, which is what to do with winners. The biggest winners on the site provide the liquidity that the other users bet into. So instead of kicking out the winners, betfair decided to tax them. A small % of customers pay anywhere from 20 to 60% of winnings - known as the premium charge. It did cause a problem, and people made an enormous amount of noise about it. But most of those people who werent happy about it were making plenty of money any way.