I use exchange websites to withdraw my bitcoins for fiat to my bank account. I wish to know that if in case the bank asks about the source of the income and source of bitcoins, what would I proof can I give them? I commonly earn from signature campaigns, freelance tasks and translations but giving them the complete details would be too much.
Has anyone ever provided proof or their source of bitcoins to any bank or legal organization? What would be the best way to prove it?
Banks typically only care about sources of income if you're making a large amount or if they have to give out a loan, otherwise as long as you pay your taxes chances are they won't give a damn and just accept the money that flows into their accounts. Just make sure that you never dump a ton of money in all at once and space it out over time.
Key term; pay your taxes. Don't take loans.