Retirement tax questions

I think you have to wrap your head around the concept that an IRA  is a separate entity from yourself.  YOU may be a trader but the IRA is not.  Within the SD IRA  you can do all kinds of investing/trading/owning properties/owning LLCs  but none of that is considered YOU personally.   Now some folks have their IRA  own their personal business  and as an owner of a business the IRA would get tax reporting forms from them like a K-1 or dividends which are income to the IRA  and most likely will require the IRA to file a form 990 and paying some taxes on the "unrelated business income".   Please take the time to be educated on the pros and cons of a SD IRA ... one wrong step in one of these will void the entire IRA which results in an immediate and total distribution of the account.