Wealth Tax Math Falls Short on Revenue and Political Power, Analysis Shows
A recent analysis of the Forbes 400 list for 2026 suggests that proposals to tax large fortunes would not achieve their main goals. The combined net worth of the 400 richest Americans stands at $8 trillion, with Elon Musk at the top at an estimated $908 billion.
Two arguments are commonly made for wealth taxes. The first is that huge fortunes translate into political power, and taxing them could reduce that influence. The second is that with the federal government running large deficits, taxing the wealth of the richest could raise significant revenue. The analysis, by Jeff Hoopes, a professor at the University of North Carolina and research director of the UNC Tax Center, examined both claims using data from the 2016 and 2026 Forbes lists.
Hoopes calculated how fortunes would have grown annually and then modeled what would have happened if a 10 percent annual wealth tax had been in place starting in 2016, assuming pre-tax growth remained the same. He described the 10 percent rate as deliberately extreme, higher than most U.S. wealth tax proposals, and framed it as a stress test of whether the political power of the very wealthy would withstand taxation at rates beyond those normally suggested.
For Musk, the exercise showed that his $908 billion fortune in 2026 would have been about $317 billion under the 10 percent tax scenario. Despite that reduction, Hoopes noted that Musk would still have had the financial capacity to complete his $44 billion purchase of Twitter and to spend more than $259 million supporting Donald Trump’s 2024 election effort, both of which he did. The analysis concluded that vast political influence does not require $908 billion, or even $317 billion, and that a 10 percent tax over the past decade would have changed little.
The same pattern appeared among other top billionaires. After 10 years of a 10 percent annual tax, Jeff Bezos would still be worth around $132 billion, Larry Page about $97 billion, and Michael Dell roughly $92 billion. These amounts are smaller than their actual fortunes but remain large enough to fund significant political activity. Hoopes pointed out that considerable influence can be bought for tens of millions of dollars, and members of the Forbes 400 would still easily retain such sums even after the wealth taxation levels that have been proposed.
On the revenue side, the analysis compared the total wealth of the Forbes 400, about $8 trillion, with the Congressional Budget Office’s current estimate of the fiscal 2026 federal deficit at approximately $2.1 trillion. Even if 100 percent of every Forbes 400 fortune were confiscated, it would cover only about 3.8 years of deficits at that annual rate. After that, the stock of wealth would be gone, but the annual budget gap would remain indefinitely. No one is proposing 100 percent wealth taxation.
A recurring wealth tax would raise recurring revenue rather than confiscate all wealth at once, but Hoopes argued that the comparison is useful because it shows the scale of the problem. The Forbes 400 are extraordinarily rich, but the federal government’s fiscal challenge is even larger. Budgetary problems cannot be solved only by taxing billionaires.
The analysis concluded that even a tax large enough to sharply reduce top fortunes would leave the richest Americans with vast financial capacity, enough to buy incredible power. And the combined wealth of the Forbes 400, enormous as it is, amounts to only a few years’ worth of federal deficits at the current pace. The Forbes 400 list does reveal an incredible concentration of wealth, but taxing that wealth will not solve the country’s problems.
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