You can actually invest in real estate, promissory notes, precious metals, cryptocurrency, small businesses, and concert tickets, or raw land. Your broker may tell you that you can’t do this and it’s prohibited. They’re blatantly wrong.
This is a unique trick we implement for several clients each year. If you previously paid a lot in Self-Employment Tax and for some reason had an LLC (sometimes a major mistake by other planners), you can easily still elect it to be taxed as an S-Corporation retroactively to January 1st, 2013