2018 numbers
Did the Tax Cuts and Jobs Act Pay for Itself in 2018?
“tax revenues actually fell by 1.6 percent. (This calculation is for the first 11 months of fiscal 2018, compared to the first 11 months of 2017.”
“You can also look at tax revenues as a percentage of gross domestic product — essentially, factoring in economic growth which should, in turn, generate tax revenues. In this case, GDP growth didn’t boost tax revenues proportionately — this measure fell by 4.1 percent over the first 11 months of the fiscal year.”
“CBO’s
projection of $3.531 trillion in tax collections was based on population growth, inflation, wage growth, and other factors. By this standard, tax revenue fell short of the projection by 5.7 percent.”
CBO estimate pre COVID.
An Update to the Budget and Economic Outlook: 2019 to 2029