The Tax Elasticity of Capital Gains and Revenue-Maximizing Rates

Working Paper: NBER ID: w27705

Authors: Ole Agersnap; Owen M. Zidar

Abstract: This paper uses a direct-projections approach to estimate the effect of capital gains taxation on realizations at the state level, and then develops a framework for determining revenue-maximizing rates at the federal level. We find that the elasticity of revenues with respect to the tax rate over a ten-year period is -0.5 to -0.3, indicating that capital gains tax cuts do not pay for themselves, and that a 5 percentage point rate increase would yield $18 to $30 billion in annual federal tax revenue. Our long-run estimates yield revenue-maximizing capital gains tax rates of 38 to 47 percent.

Keywords: capital gains tax; elasticity; revenue-maximizing rates

JEL Codes: H0; H2; H21; H24; H71; R5


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
capital gains tax rate (H24)elasticity of revenues (H30)
capital gains tax cuts (H24)revenues (H27)
5 percentage point increase in capital gains tax rates (H24)additional $18 to $30 billion in annual federal tax revenue (H27)
capital gains tax rate (H24)capital gains realizations (G19)
elasticity of capital gains realizations (H32)responsiveness to tax rate changes (H32)
long-run estimates (C51)revenue-maximizing capital gains tax rates (H21)

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