The Rise of Self-Made Billionaires Strengthens the Case Against Wealth Taxes

For the first time, half of the world's billionaire wealth was created by self-made entrepreneurs in competitive industries rather than inherited fortunes or politically connected businesses. That milestone, identified in a new Economist analysis of roughly 7,000 billionaires and highlighted by economist Edward Conard, undercuts one of the central arguments for imposing wealth taxes.

The argument for taxing billionaire wealth often rests on the assumption that extreme wealth is largely inherited or accumulated through economic systems that favor the well-connected. The new research points in the opposite direction. As more billionaire wealth is created through entrepreneurship and competition, policies that target accumulated wealth risk discouraging the investment and business formation that drive economic growth.

Entrepreneurship Is Creating More Billionaire Wealth

An analysis highlighted by economist Edward Conard, based on research published by The Economist, found that the share of billionaire wealth derived from self-made entrepreneurs in competitive sectors reached an all-time high over the past decade.

The findings challenge a common narrative surrounding wealth inequality. Rather than reflecting inherited fortunes or protected industries, a growing share of billionaire wealth is tied to entrepreneurs who created companies, developed new products, and competed successfully in the marketplace.

Those businesses do more than generate personal wealth. They create jobs, attract investment, purchase goods and services, and deliver products that consumers voluntarily choose to buy. As companies expand, those benefits extend throughout the broader economy.

Wealth Taxes Would Come at a High Economic Cost

Despite these trends, proposals for wealth taxes continue to receive attention in the United States and abroad.

New economic modeling by EY suggests those proposals would carry significant economic consequences. According to the study, a coordinated global wealth tax would reduce investment, slow economic growth, lower labor income, and eliminate the equivalent of roughly 20 million job-years during its first decade.

The mechanism is straightforward. Wealth taxes reduce the after-tax return on investment, making it less attractive to finance new businesses, expand existing companies, or invest in innovation. Lower investment ultimately means fewer opportunities for workers, slower productivity growth, and reduced wage gains.

Economic growth depends on capital formation. Policies that discourage investment inevitably reduce the resources available to expand businesses and create new jobs.

Economic Mobility Deserves More Attention

These findings reinforce a broader trend that CFE has previously highlighted. The shrinking middle class is often presented as evidence of economic decline, yet much of that change reflects upward mobility as more Americans move into higher income brackets and achieve millionaire status through business ownership, entrepreneurship, and long-term investment.

That distinction is important. A society where more people create wealth through productive enterprise is fundamentally different from one where wealth is concentrated through inheritance or government favoritism.

Public policy should encourage that type of economic mobility rather than penalize it.

CFE Takeaway

The growing share of billionaire wealth created by self-made entrepreneurs reflects an economy that continues to reward innovation, competition, and investment. Proposals to impose wealth taxes would weaken those incentives while reducing investment, slowing growth, and costing jobs. Policymakers should focus on expanding opportunities for entrepreneurship and wealth creation instead of adopting tax policies that make economic success more difficult to achieve.