If you received $350,000 in 2013, you had to pay income tax of around $175000 to the IRS and CA. Just because you may have to "give it back" at a future date does not mean you did not have to pay the tax in the first place. And, if you did not report this income, it is called TAX EVASION which is a very serious and harshly prosecuted crime. It also allows the IRS to audit you going back as far as they deem necessary and you lose the right for them to only audit back three years.
I am sure Mark paid his taxes on this payment out of his bank account and that is why he did not need to sell around half the coins to pay the taxes. But, if he did not report this income. I am sure he will quickly re-file his tax returns and pay it immediately (because if he consults a tax attorney they will tell him that if he does not do that BEFORE the IRS sends the audit letter his chances of getting convicted is close to 100%).
I did not report him as I do not need the 15% whistleblower's payment. I am sure he followed the law or has corrected his behavior if he did not follow the law.
I was asking the question in general, not a response to the tax issue....