Economy Loses More than Revenue Gains in the House Build Back Better Act

As Congress debates next steps on the tax provisions in the Build Back Better Act proposed in the House Ways and Means Committee, it is important to consider the economic impacts, which include reduced economic output, wages, and jobs. Due to the plan’s economically costly and inefficient tax increases, we find that long-run GDP would drop by more than $2 for every $1 in new tax revenue.

Using Tax Foundation’s General Equilibrium Model, we estimate that the Ways and Means tax plan would reduce long-run GDP by 0.98 percent, which in today’s dollars amounts to about $332 billion of lost output annually. We estimate the plan would in the long run raise about $152 billion annually in new tax revenue, conventionally estimated in today’s dollars, meaning for every $1 in revenue raised, economic output would fall by $2.18.

When the model accounts for the smaller economy, it estimates that the plan’s dynamic effects would reduce expected new tax collections to about $112 billion annually over the long run (also in today’s dollars), meaning for every $1 in revenue raised, economic output would fall by $2.96.

Combined Long-Run Effects of Changes Under House Ways and Means Tax Plan
Long-run Gross Domestic Product (GDP) -0.98%
Long-run Gross National Product (GNP) -1.01%
Capital Stock -1.84%
Wage Rate -0.68%
Full-Time Equivalent Jobs -303,000

Source: Tax Foundation General Equilibrium Model, September 2021.

Focusing on the Plan’s Effects Within the 10-Year Budget Window

The tax plan’s effects on GDP and revenue would build up over several years to reach the long-run equilibrium, with a majority of the adjustment occurring within the 10-year budget window (2022-2031). Starting with a 0.09 percent drop in GDP in the first year (about $20 billion) and building to a 0.64 percent drop in GDP by 2031 (about $212 billion), the plan would result in a cumulative GDP loss of nearly $1.2 trillion from 2022 through 2031, as shown in the following Figure.

The nearly $1.2 trillion in lost GDP exceeds the amount of revenue the plan would raise over the same 10 years—nearly $1.1 trillion on a conventional basis and $804 billion on a dynamic basis after accounting for the smaller economy. In other words, for every $1 raised over the next decade, about $1.10 is lost in economic output. This ratio is smaller than the long-run effect because over the first 10 years, the economic impact is still phasing in.

The adjustment path for GDP over the 10-year window is based on the time it takes to turn over the capital stock. By the 10th year, the economy has felt about 60 percent of the long-run impact of the tax changes.

This process may happen faster if labor and capital adjust more quickly than we have assumed. For example, if we assume 90 percent of the long-run GDP impact is felt in the first 10 years, then the cumulative GDP loss resulting from the plan would amount to $1.8 trillion over the budget window.

Impact of Ways and Means Tax Plan on GDP and Federal Revenue
  2022-2031 Cumulative Budget Window Long-run Annual (2021 Dollars)
Conventional Revenue $1,062 billion $152 billion
Dynamic Revenue $804 billion $112 billion
GDP -$1,169 billion -$332 billion

Source: Tax Foundation General Equilibrium Model, September 2021.

Visualizing the Plan’s Effects on Individual Taxpayers

The Ways and Means tax plan reduces economic output by reducing the after-tax return to investment opportunities for firms and the incentive to work through higher tax rates on labor income. More than half of the plan’s economic impact is due to increasing the tax burden on corporations, which is the most economically costly way to raise revenue. The Organisation for Economic Co-operation and Development (OECD) found that the corporate income tax is the most harmful tax for economic growth, and academic research suggests that workers, especially low-skilled, women, and the young, are negatively impacted through lower wages.

Even before accounting for a smaller economy, taxpayers earning less than $400,000 would see lower after-tax incomes due to higher corporate taxes and higher taxes levied on nicotine and cigarettes.

We can visualize how the economic harm of the tax plan impacts after-tax incomes by comparing the conventional distributional impact of the tax changes, which holds the size of the economy constant, to the dynamic distributional effect that includes the impact of a smaller economy on incomes. The following table shows the average change in after-tax income per filer for each income quintile.

Overall, the plan would reduce average after-tax income per filer by $171 in 2031, on a conventional basis, and by $971 per filer in the long run on a dynamic basis. That is, the economic harm of the plan would reduce after-tax incomes by about $800 per filer on average each year.

The economic harm caused by the tax increases would claw back some of the plan’s expanded tax credits aimed at low- and middle-income families. For those in the bottom 20 percent, it would reduce the average net benefit of the plan per filer from $341 to $233, a 30 percent reduction.

Before accounting for economic effects, filers in the middle quintile would see a decrease in average after-tax income of about $38—mostly due to the corporate tax increases—but that would rise to a $493 drop in average after-tax income every year when including the negative economic effects. The top quintile would see a $1,287 drop in average after-tax income, rising to a $3,861 drop in average after-tax income on a dynamic basis.

The Effect of Lower Economic Output on Average After-tax Incomes Per Filer from the Ways and Means Tax Plan
Quintile AGI Thresholds in 2022 Average Conventional Change in After-tax Income, 2031 (2022 dollars) Conventional Percentage Change in After-tax Income, 2031 Average Dynamic Change in After-tax Income, Long-run (2022 dollars) Dynamic Percentage Change in After-tax Income, Long-run
0% to 20% $0 to $19,500 $341 3.8% $233 2.6%
20% to 40% $19,500 to $33,100 $94 0.4% -$165 -0.7%
40% to 60% $33,100 to $50,229 -$38 -0.1% -$493 -1.3%
60% to 80% $50,229 to $80,150 -$62 -0.1% -$804 -1.3%
80% to 100% $80,150 and above -$1,287 -0.8% -$3,861 -2.4%
Total N/A -$171 -0.3% -$971 -1.7%

Source: Tax Foundation General Equilibrium Model, September 2021.

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