Re:The IRS collects data on Coinbase account holders
by dopamean on Friday March 16, 2018 @12:03PM
(#16601523)
I'm almost certain there was a guy on r/CryptoMarkets (or one of those crypto currency subs) who this happened to. He apparently traded a few bitcoin up to a few hundred in 2017. Then closed out his positions near the end of the year. Reinvested everything after the new year and lost almost all of it. If that's all true he could be on the hook for a lot of money.
You owe taxes to the feds and state of about 500,000, which you don't have anymore. That is of course carried forward as a loss for the next year, but that only results in reducing taxable income at a potentially lower bracket.