Tax Myths vs Facts: Who Really Pays and Who Doesn't

This claim — the central premise of supply-side economics since the 1980s — has been tested repeatedly and failed every time. The Reagan tax cuts of 1981 were projected to increase revenue; instead, the deficit tripled from $79 billion to $221 billion by 1986. The Bush tax cuts of 2001 and 2003 were projected to pay for themselves; instead, they added an estimated $1.7 trillion to the national debt over 10 years according to the Congressional Budget Office. The 2017 Trump tax cuts were projected to generate enough growth to offset their cost; instead, CBO estimated they added $1.9 trillion to the debt over a decade.

The Congressional Research Service, a nonpartisan arm of Congress, analyzed 65 years of data (1945-2010) and found no statistically significant correlation between top marginal tax rates and economic growth. The economy grew faster in the 1950s-1960s (when top rates were 70-91%) than in the 2000s-2010s (when top rates were 35-39.6%). Tax rates are one of dozens of factors influencing growth, and they are not the dominant one.

Even conservative economists have largely abandoned this claim. Greg Mankiw, chair of George W. Bush's Council of Economic Advisors, has called the claim that tax cuts fully pay for themselves 'not credible.' The consensus among economists across the political spectrum is that tax cuts can stimulate some additional economic activity, but the revenue from that activity offsets only 10-30% of the revenue lost from the cut — nowhere close to 100%.

The United States has one of the lowest total tax burdens among wealthy democracies. Total tax revenue as a share of GDP in the US is approximately 27% — compared to an OECD average of 34%. Denmark collects 46%, France 45%, Germany 38%, the UK 35%, Canada 33%, and Australia 29%. Among the 38 OECD nations, the US ranks near the bottom in total tax collection relative to the size of its economy.

The reason Americans feel overtaxed is not that taxes are high — it's that they receive comparatively little in return. Citizens of Denmark, Germany, France, and the UK receive universal healthcare, free or low-cost university education, generous parental leave, affordable childcare, robust public transit, and strong retirement systems. Americans pay for all of these privately, at much higher prices. When you add private healthcare premiums, student loan payments, childcare costs, and out-of-pocket retirement savings to the US tax burden, the total is higher than what citizens of most wealthy nations pay in taxes alone.

The 'overtaxed' feeling is a product of the gap between what Americans pay in taxes and what they get back — not the level of taxation itself. Restructuring taxes to fund public goods that replace expensive private costs would leave most households financially better off even at a higher nominal tax rate.

The economic research on corporate tax incidence is nuanced, but the claim that 100% of corporate taxes are passed to consumers is not supported by evidence. The Congressional Budget Office's central estimate is that roughly 75% of the corporate tax burden falls on capital owners (shareholders) and approximately 25% on workers through lower wages. Some models put the worker share higher, but none find that consumers bear the majority of the burden through higher prices.

The reason corporations can't simply pass all taxes to consumers is competition. If Company A raises prices to offset its tax bill, Company B (which may have different tax exposure, different margins, or different pricing strategies) can undercut it. In competitive markets, prices are set by supply and demand, not by cost-plus markup. This is why consumer prices did not meaningfully decline after the 2017 corporate tax cut from 35% to 21% — and why they did not spike during the decades when the rate was 35% or higher.

The more important question is what corporate tax revenue funds. The 2017 corporate rate cut from 35% to 21% reduced federal revenue by approximately $1.3 trillion over 10 years. Rather than being passed through as lower consumer prices, the bulk of that windfall went to stock buybacks — $1 trillion in buybacks in 2018 alone — which primarily benefited wealthy shareholders. The tax cut transferred wealth from public services to corporate shareholders, not from government to consumers.