From iGaming Business – UK bookmaker William Hill is to consider legal action against a proposed new online tax that will cut 15% from all online gaming profits from the end of next year, according to The Daily Express newspaper. The bookmaker recently posted an 8% rise in operating profit for the first half of the year, as well as a revenue increase of 20%. In addition, the firm’s online business experienced significant growth – as online revenue grew 18%, while mobile betting figures jumped by an impressive 112%. With a large part of these figures coming from online gaming…