As we reported last year, the Internal Revenue Service has been investigating users of the popular crypto currency wallet and exchange, Coinbase. They had initially requested information on every US citizen who used the service between the years of 2013 and 2015 regardless of whether there was any evidence of tax evasion or not. Since Coinbase is a very popular exchange for US-based gamblers, this investigate threatened to have potentially large tax implications for U.S. poker players and sports bettors. Coinbase have been battling the IRS in the courts over the past few months because they feel that the IRS are overreaching by requesting data on every user. The strategy seems to be paying off because the IRS are now only looking for the records of Coinbase users who have made single transactions bigger than $20,000. The $20k transaction must have taken place during the 2013 to 2016 period and could be a buy, sell, receive or send. Most regular online gamblers do not make single transactions worth tends of thousands of dollars so their activities at Coinbase will to come under IRS scrutiny for the foreseeable future.