“We have a parcel fix for that in this great big bill,” Bentz said. He said the top 1% of Americans pay 40% of the income tax, a popular line among Republicans. When payments for all federal taxes — income tax, payroll tax, business taxes, etc. — are spread across all income groups, analysis shows the top 1% pay 25% of federal taxes while the bottom 80% pay 31% of federal taxes, according to the analysis. The bulk of income earned by the 1% is not labor income, but income from investments and business, according to the analysis.