I still have no idea how one would properly estimate capital gains for Bitcoin. In my case, i've done thousands of small different trades... some in exchanges that are long gone forever so I lost the actual trade data... that not counting the fact I sometimes mixed coins. How in hell is one supposed to inform IRS or whatever and get it properly taxed? it's basically hell keeping track of it after a point.
well it is your fault, i don't think that they care after all, they will tax you regardless, if you exceeded a certain amount, and you gained from your trade
the tracking before the birth of the rule for bitcoin by irs, should not be counted i think, but i'm not entirely sure about this
another note, what about if i send all my bitcoin abroad and i exchange them in a foreign exchange(after a gain on trading), then i transfer the funds in the usa, the taxes are the same? there are different rules?