The Illusion of Novelty: Why Chasing New Wealth Taxes Misses a $300 Billion Opportunity

The temptation to target the "brobdingnagian wealth" of billionaires, especially as artificial intelligence mints new fortunes, has reached a fever pitch. California is leading the charge, with voters set to decide in November on a one-time 5% tax on fortunes exceeding $1bn. The appeal is clear: confront the perception that figures like Elon Musk, with his new trillion-dollar fortune, aren't paying their "fair share" and address the US government's urgent need to restore its "meager social safety nets" and mitigate "mushrooming income inequality."

Yet, this pursuit of a "newfangled wealth tax" risks draining political capital that could be far more effectively deployed. The global track record is sobering. In 2024, only three of the advanced economies in the OECD—Norway, Spain, and Switzerland—collected any revenue from recurrent wealth taxes. This is a drastic reduction from 12 countries in 1990, and even these three collect "not much" today.

**The $300 Billion Blind Spot**

The real financial opportunity lies not in inventing new taxes, but in mending the existing ones. Consider that in 2024, the richest 1% of Americans paid, on average, about 31.5% of their income in federal taxes and about 7.2% in state and local taxes. This aggregate 38.7% represents more than eight percentage points less than what they paid at the turn of the century. The top 1% collectively report an adjusted gross income exceeding $3tn. Recapturing those eight percentage points could inject nearly $300bn of additional tax revenue per year into federal coffers.

This isn't a technical dilemma. "Raising more money is not particularly complicated, from a technical perspective," the source notes. The path forward is to close the "elaborate array of holes that have been drilled into the current tax schedule" by removing preferential tax treatment for specific income types. The Yale Budget Lab's analysis, revealing that the effective tax rate on the top 1% of earners can swing wildly between 45% and a "miserly 3%" depending on how they earn, starkly illustrates the systemic unfairness.

**The Cost of Complexity**

Deploying a novel wealth tax, largely abandoned by industrialized nations, could imperil the very goal of building a more capable state. Such an endeavor risks diverting focus and resources from the fundamental task: restoring fairness to a system that allows "vast discrepancies in the ways different forms of income are taxed." The argument for pursuing this clarity is amplified by the "increasing demands on the safety net by an ageing population" and the "prospect of an AI-laced economy with little human income to tax."

In essence, the drive to tax the "super rich" doesn't need to "reinvent the wheel." The blueprint for substantial revenue generation already exists within the current, albeit eroded, tax framework. The challenge is not technical, but rather one of political will: sealing the existing "holes" that continue to benefit a "plutocracy" at the expense of public good.