Optimal Top Marginal Tax Rates Under Income Splitting for Couples

Working Paper: CEPR ID: DP8435

Authors: Stefan Bach; Giacomo Corneo; Viktor Steiner

Abstract: This paper analytically derives optimal top marginal tax rates when couples are taxed according to income splitting between spouses, consumption is taxed, and the skill distribution is unbounded. Optimal top marginal income tax rates are then quantified for Germany. Estimation results based on an exhaustive dataset of top taxpayers suggest that the optimal asymptotic tax rate is close to 2/3 and only applies to incomes that are considerably higher than those currently subject to the actual top tax rate.

Keywords: optimal income tax; top incomes

JEL Codes: D31; D72; H23


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
top marginal tax rates (H21)labor supply (J20)
optimal top tax rate (H21)income distribution of couples versus singles (D31)
elasticities of labor supply (J20)optimal top tax rate (H21)
income distribution (D31)optimal top tax rate (H21)
higher marginal tax rates (H31)tax revenue (H27)
optimal marginal tax rate (H21)actual rate currently applied (E43)

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