Linked IRS returns put three million owner-operators above $5 million in net worth

Take the ratio at face value. The Forbes list has 400 names, and each one is matched by more than 4,000 private business owners holding at least $10 million ^[9], so the implied count above $10 million runs past 1.6 million people ^[1]. The book counts roughly 3 million owners above $5 million ^[7]. On those two figures, more than half the group sits above twice the entry threshold ^[2]. The counts are not defined identically, though. The 3 million requires a single closely held operating business producing most of the owner's income ^[6]; the 4,000-per-member figure is stated for private business owners generally ^[9].

The political estimate carries the larger multiple. Pass-through owners are 2% to 3% of the general population and about a quarter of federal elected officials ^[11]. That works out to eight to twelve times their population share ^[3]. In state legislatures, at roughly 40%, the multiple is thirteen to twenty ^[4]. Zwick pointed to the most recent tax bill, which let clean-energy vehicle credits lapse while making a 2017 pass-through deduction permanent ^[13]. "That benefits the auto dealers, many of whom are on the tax-writing committee of Congress," he said ^[14]. On party he was careful, saying there is somewhat more evidence that Republican elected officials may be a bit more likely to come from this class than Democrats, but that there are a lot of Democrats in it too ^[12].

Individual returns and business filings sat in systems that had never been linked, so nobody could connect a firm's profits to the person who owned it and banked them ^[2]. The two economists spent months making the databases talk ^[3]. "I'm like, this is not Jeff Bezos. This is not Stephen Schwarzman," Zwick told Fortune of the table that came back ^[5]. Fortune did not publish the dollar aggregate on either side of his 13-times-the-Forbes-400 estimate ^[8][17].

For an allocator, the distinction to hold is between an estimate and a mark. A tax return is an estimate; it is not a bid. Every net worth in this population rests on one closely held operating business that its owner runs ^[6].

The composition question is the one I would press, or rather the version of it that would break the reframing. Doctors sit near the top of the pass-through profit table ^[4], and dentists are named among the group ^[10]. A practice's profits are the proprietor's labour income routed through a partnership structure, and wealth measured on those profits is a capitalised wage. If licensed practices account for most of the 3 million, the story is about how high earners choose a legal form, and the demand it generates looks more like tax and succession work than growth capital. The book's own examples pull the other way: Dick Portillo opened a hot dog stand in 1963 without having cooked one, and by 2014 owned the Midwest's largest privately owned restaurant company ^[15]. Karen Bentlage dropped out of Central Connecticut State University, built the country's second-largest tanning-bed distributor, and put the proceeds into a regional waxing-salon franchise ^[16].