U.S. Corporate Tax Revenue as a Percentage of GDP (1900–2020s) Decade Corporate Tax Revenue as % of GDP 1900s ~0.1% 1910s ~0.5% 1920s ~0.8% 1930s ~1.0% 1940s ~4.0% 1950s ~4.3% 1960s ~3.5% 1970s ~3.0% 1980s ~2.5% 1990s ~2.5% 2000s ~1.3% 2010s ~1.0% 2020s (est.) ~1.0% (varies slightly) U.S. Individual Income Tax Revenue as a Percentage of GDP (1900-2020s) Decade Income Tax Revenue as % of GDP 1900s ~0.0% 1910s ~0.5% 1920s ~1.5% 1930s ~3.5% 1940s ~7.5% 1950s ~8.0% 1960s ~8.0% 1970s ~8.5% 1980s ~8.0% 1990s ~8.0% 2000s ~8.5% 2010s ~8.0% 2020s (est.) ~8.0% (varies slightly)
