[bpicolo]

> I would be worried that the IRS would claim you should have recognized a tax gain with every trade

They explicitly do consider crypto-to-crypto transactions as a taxable event now, as of the recent tax bill. You are required to pay taxes on it.

[sp332]

But that's new with the new tax bill. It wouldn't apply to 2017 taxes.

[mathgeek]

1031 exchanges are indeed explicitly only for real estate starting in 2018. For 2017, it's best to consult a tax professional as the rules are somewhat unclear.

[asah]

This is correct.