Gains you accrue can be retained tax-free until you take a distribution. Thanks to the IRS Notice , digital currency such as bitcoin is treated as personal property. This will further help you establish an IRS approved self-directed Solo k plan structure. If you make a bitcoin investment for your SDIRA, they can assist you with the entire transfer process to make it quick and easy. However, self-directed IRAs place an investor in charge of his investment decisions. The process of buying cryptocurrency is still somewhat unclear for a lot of people.