BTW, if you are unfamiliar with how tax works with Bitcoin, you'll probably be really confused at how the forum experienced a net loss in 2013 but still paid a lot of tax. That happens because every expense "triggers" substantial capital gains, and therefore capital gains tax. The forum essentially pays a variable-rate tax on all expenses.

If you're interested: I used the LIFO method for calculating capital gains. My idea is to "save up" BTC batches until they become long-term, which has a lower tax rate. My understanding is that you can use any capital gains calculation method, though. (This is not tax advice -- consult a CPA.)