Hi.
i didn't traded so much of my crypto for FIAT so i didn't dealt with that question yet.
however i think it's an issue need to be dealt with.
1. do you use accounting services?
2.if so, do you keep documentation of all traded or bought coins?
3. what do you do in cases of profit from ICO's
WHAT SHOULD I DO??
As much as I like to pay taxes, I don't think they have implemented crypto taxes in my country yet. If they do, I would rather use an accountant to compute everything. Oh by the way, my dad is a certified public accountant (CPA), so I may need his help to compute my crypto taxes if it implements in my country one day. For now, fiat income is where we need to pay taxes, not crypto, because it is decentralized. I might say that rules can change anytime soon when it comes to cryptocurrency earnings being subjected to tax.