Updated Post: https://steemit.com/bitcoin/@lifebyadam/update-what-you-should-know-about-the-coinbase-tax-irs-situation
Just want to bring some awareness to taxes when it comes to bitcoin, altcoin etc transactions like withdrawals, sales, conversions, mining etc. Currently, a lawsuit is in the works involving the IRS and Coinbase where the IRS is trying to get Coinbase to release information on United States customers. Links below to more info.
http://www.thetaxadviser.com/newsletters/2017/apr/cryptocurrency-taxes.html
https://en.bitcoin.it/wiki/Tax_compliance
https://www.thebalance.com/how-bitcoins-are-taxed-3192871