Last Friday, the U.S. Supreme Court (SCOTUS) announced a much-awaited decision. In a 6-3 ruling, SCOTUS declared that Trump's tariffs under the International Emergency Economic Power Act (IEEPA) are unconstitutional. I took this as a win not only for the separation of powers, but also for the economic wellbeing of the American people. Economic estimates calculated that these tariffs would have cost consumers billions of dollars, reduced GDP growth, and harmed net employment while doing little in the way of measurable benefits. In a previous piece, I also point out that it is not only economic modeling. History has shown these adverse economic effects to materialize as a result of tariffs. As I wrote earlier this month, these tariffs are even affecting U.S. national security. So yes, I am quite happy and relieved to see this SCOTUS ruling.
Counting Revenue That Does Not Exist
Yet I noticed a couple of estimates that came out in response to the ruling, and they were both budgetary in nature. The first estimate is from the Wharton School of Business, which a leading business school in the U.S. Wharton estimates that unless replaced by another revenue source, future tariff revenues will fall by half. The second estimate is from the bipartisan Committee for a Responsible Federal Budget (CRFB). CRFB writes that "SCOTUS tariff ruling could add $2.4 trillion to the debt [over the next decade]." According to the CRFB, this ruling could raise the debt-to-GDP ratio from the baseline 120 percent to 125 percent. One of the reasons that this SCOTUS ruling matters is because the Trump administration presented the tariffs not only in terms of trade policy, but also as a source of government revenue.
The Mirage of "Lost Revenue"
Since the administration touted the tariffs as a revenue source, the framing of "the SCOTUS ruling adds debt" is especially misleading. Tariff revenue under the likes of Section 232 or IEEPA are temporary, process-dependent, and potentially disruptive on an international level. Assuming that the tariffs would last indefinitely or that there would not be economic blowback is unrealistic. The SCOTUS ruling does not add to the debt. Pretending that future tariff revenue increases debt ignores the reality that the money has not arrived in the government's coffers. An absence of a tax increase is not the same thing as an increase in the debt.
Tariffs only shift resources from consumers and businesses to the government temporarily. They do not magically create wealth out of thin air. Calling tariffs "revenue" distracts from the fact that tariffs are a tax. The government does not have first dibs on the gains from private economic activity. Baseline budgeting treats the tax revenue as a permanent fixture once enacted. As I argued last September, the economic and fiscal realities of tariffs made tariffs an unreliable revenue source, especially given the negative economic effects and the risk of retaliation. That disconnect between baseline budgeting and economic reality is why the claim that "SCOTUS ruling causes debt" rings hollow.
The Real Culprit: Congress' Credit Card
The baseline assumption is that Congress does nothing else, that the currently enacted laws are on auto-pilot. This brings us to what really causes debt. U.S. federal debt does not exist because SCOTUS declared Trump's IEEPA tariffs unconstitutional. It is because the government has consistently spent more money than it makes. That is an outcome of basic accounting. As the most recent Congressional Budget Office (CBO) Budget and Economic Outlook shows, the government is projected to create an average annual deficit of 6.1 percent from 2027 to 2036. Keep in mind that this is higher than the 1976-2025 average of 3.8 percent. The fact that the CBO projected before the tariff ruling that the debt-to-GDP ratio would be at 120 percent, a ratio that is higher than it was after WWII military spending, should make us pause and ask what the real issue is.
The Deficit Solution Congress Refuses to Touch
As I detailed in 2024, tax cuts from the Tax Cuts and Jobs Act did not cause the economy to implode. Similarly, the absence of tariffs did not cause the debt "to explode" because of the SCOTUS ruling. It simply exposes how the U.S. economy is becoming increasingly fragile due to Congress' inability to get its spending under control. Tariffs, tax cuts, or emergency powers will not fix that insatiable, profligate spending. If you actually care about government spending (and if you are a U.S. citizen, you certainly should because of how it will directly affect you) and want a smaller deficit, don't go begging for more government revenue. Tell Congress to stop buying things it cannot afford.






