I wrote an article for US citizens awhile back outlining how to set up an IRA LLC. This idea could potentially be applied to rewards given by the network if an account is controlled / owned by such an IRA LLC. The problem is that individuals cannot perform services for an IRA LLC if they, or anyone in direct lineal ascent or descent, own more than 50% of the LLC. In addition, this also means that individuals cannot 'sell' accounts or 'gift' them to an IRA LLC as this would be a prohibited transaction.

Apart from that, sky's the limit. ... I invite you to read more : How To Setup a Self-Directed IRA for Cryptotoken Investments.

Disclaimer: I am not a financial adviser. This statement is not to be construed as advice for financial purposes. Consult with your financial adviser if you want to learn more.