I've serviced a lot of small businesses over 35yr of IT (typically deep into operations) and I've never come across it.
Over the previous few decades, this sort of private business had — quite privately — taken over the American business world. In 1980, pass-through businesses generated about one-fifth of all U.S. business income. By 2011, they generated more than half. Move over, Corporate America. Hello, Pass-Through America!
https://www.npr.org/sections/planet-money/2026/09/14/g-s1-14...
Source?
> “Pass-through” businesses like partnerships and S-corporations now generate over half of US business income and account for much of the post-1980 rise in the top-1% income share.
https://www.npr.org/sections/planet-money/2026/09/14/g-s1-14...
In turn it links the source: https://www.journals.uchicago.edu/doi/10.1086/685594