The report, titled "Virtual Economies and Currencies," focuses on buying, using, and selling virtual currencies like WoW gold. The key takeaway for World of Warcraft players is that the in-game economy is a "closed-flow system" -- because you can't exchange your gold for U.S. dollars, you don't need to worry about claiming those 26 gold pieces from completing a quest on your 2013 income taxes. If, however, you decide to sell your accumulated WoW items through a third-party exchange (Don't do it! It's against the Terms of Service and could get you hacked!), then you "may have earned taxable income from the sale of these virtual goods."