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Reforming the Individual Income Tax in Spain

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  • Guner, Nezih
  • Ramos, Roberto
  • Lopez-Segovia, Javier

Abstract

We study how much revenue can be generated by more progressive personal income taxes in Spain. We build a life-cycle economy with uninsurable labor productivity risk and endogenous labor supply. Individuals face progressive taxes on labor and capital incomes and proportional taxes that capture social security, corporate income, and consumption taxes. An increase (decrease) in labor income taxes for individuals who earn more (less) than the mean labor income generates a small additional revenue. The revenue from labor income taxes is maximized at an effective marginal tax rate of 51.6% (38.9%) for the richest 1% (5%) of individuals, versus 46.3% (34.7%) in the benchmark economy. The additional revenue from labor income taxes is only 0.82% higher, while the total tax revenue declines by 1.55%. The total tax revenue is higher if marginal taxes are raised only for the top earners. The increase, however, must be substantial and cover a large segment of top earners. The new tax collection from a 3 percentage points increase on the top 1% is just 0.09%. A 10 percentage points increase on the top 10% of earners (those who earn more than e41,699) raises the total taxes by 2.81%.

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  • Guner, Nezih & Ramos, Roberto & Lopez-Segovia, Javier, 2020. "Reforming the Individual Income Tax in Spain," CEPR Discussion Papers 14779, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:14779
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    Cited by:

    1. Ayse Imrohoroglu & Cagri Kumru & Jiu Lian & Arm Nakornthab, 2023. "Revisiting Taxes on High Incomes," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 51, pages 1159-1184, December.
    2. Nezih Guner & Martin Lopez-Daneri & Gustavo Ventura, 2023. "The Looming Fiscal Reckoning: Tax Distortions, Top Earners, and Revenues," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 50, pages 146-170, October.
    3. Luisa Fuster, 2022. "Macroeconomic and distributive effects of increasing taxes in Spain," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 13(4), pages 613-648, December.
    4. Darío Serrano-Puente, 2020. "Optimal progressivity of personal income tax: a general equilibrium evaluation for Spain," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 11(4), pages 407-455, December.

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    More about this item

    Keywords

    Taxation; Progressivity; Top earners; Labor supply; Laffer curve;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E6 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook
    • H2 - Public Economics - - Taxation, Subsidies, and Revenue
    • J2 - Labor and Demographic Economics - - Demand and Supply of Labor

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