a16z Podcast

Imagine describing your life’s work as “an abject failure” while calmly explaining that a Wharton School economic model crashed because it couldn’t project a functioning U.S. economy 30 years out under current debt trends. That’s the stark, darkly humorous tone Jessica Riedel, a nonpartisan budget and tax expert, sets in this conversation. She dismantles the comforting myths both political parties use to sell their tax policies, arguing that the real crisis isn’t about revenue—it’s about a spending addiction neither side has the courage to curb. The discussion cuts through partisan noise to reveal a tax system that is far more progressive than most Americans believe, and a looming fiscal catastrophe driven by entitlement programs and a political class terrified of telling voters the truth.

Riedel systematically debunks the top ten tax myths, from the conservative fantasy that tax cuts pay for themselves to the liberal narrative that taxing the wealthy alone can solve our deficits. She presents data showing the U.S. already has the most progressive tax system in the developed world, with the top 20% paying 90% of income taxes, while the middle class bears a lower burden than it has since World War II. The core problem, she insists, is on the spending side: skyrocketing costs from Social Security and Medicare, which are not pre-funded and will run a $124 trillion cash deficit over the next 30 years. Politicians privately acknowledge this but publicly promise more tax cuts and spending, creating a vicious cycle where the national debt is on track to reach $200 trillion.

The path forward, according to Riedel, requires brutal honesty and shared sacrifice. It means reforming entitlements through measures like means-testing benefits for wealthy retirees and modestly raising the retirement age. Critically, she argues that any viable solution must include raising taxes on the middle class, as it is mathematically impossible to close the deficit gap by targeting only the rich. The conversation ends on a note of grim realism, acknowledging that while bipartisan groups in Congress are secretly crafting plans, the current climate of partisan tribalism and short-term political pandering makes public courage almost nonexistent. The laws of economics, however, remain unforgiving and will force a reckoning eventually, whether we plan for it or not.

Surprising Insights

• The U.S. tax system is the most progressive in the OECD—more so than Europe. The top 20% of earners pay 90% of federal income taxes, while the bottom 40% collectively pay a negative income tax rate due to credits.
• Tax cuts historically lead to more spending, not less. Contrary to the “starve the beast” theory, data shows that when taxes are cut, Congress tends to increase spending, and when taxes are raised, spending often falls.
• Seizing all wealth from every American billionaire—liquidating all their assets—would fund the federal government for only about eight months, once. It is not a recurring revenue solution.
• Social Security and Medicare are not pre-funded. Taxes from current workers pay for current retirees; there is no personal “account” with saved contributions. A typical senior receives roughly triple what they paid into Medicare over their lifetime.
• The middle class is significantly undertaxed by international standards. The median U.S. family pays about half the effective tax rate they did when Reagan was elected, largely because Europe funds its larger governments with high national sales (VAT) and payroll taxes that broadly impact middle and lower earners.

Practical Takeaways

• Simplify your own financial view: Understand that your payroll taxes are not saved for your future benefits but fund current retirees. Plan your retirement savings independently of expected Social Security payouts.
• Advocate for budget process reform: Support legislative changes that force lawmakers to pay for new spending or tax cuts concurrently, such as “pay-as-you-go” rules, to make fiscal trade-offs more transparent.
• Evaluate political promises critically: Be skeptical of any politician who claims deficits can be fixed solely by taxing the rich or that tax cuts will magically boost revenue enough to avoid hard choices about spending.
• Focus on spending, not just taxes: In civic discussions, shift the debate from “who should pay” to “what should we pay for.” The primary driver of long-term debt is the growth in spending, particularly on major entitlements.
• Support bipartisan, comprehensive deals: Recognize that viable solutions require compromises from both sides—mixing prudent entitlement reforms with sensible revenue increases—rather than one-party schemes that are doomed to polarize and fail.