Futures Mag "Feb '02" mentions that several markets are "approved for trading by US traders" but none(not even the Dax as I erroneously listed) gets the same "favorable tax treatment" as US exchange based contracts.
Not saying that one shouldn't trade overseas just that there are tax implications
Net
FWIW, Not a CPA, Broker, CTA, not affiliation with US exchanges or FCMs,IBs,