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Taxation of Interest Income

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  • Roger Gordon

Abstract

Why is interest income taxed so much more heavily than other forms of capital income? This differential tax treatment has generated substantial tax arbitrage, resulting in lower tax revenue, efficiency costs, and apparently net gains to rich borrowers and net losses to poor lenders, together suggesting that this tax treatment makes no sense on welfare grounds. In examining this argument more formally, this paper reveals two omitted considerations that can help explain the existing tax treatment. First, the forecasted increase in the market interest rate results in a redistribution from rich borrowers to poor lenders. Yet this redistribution comes at no marginal efficiency cost, starting from a situation with no distortions to portfolio choice, so at the margin dominates further redistribution through the income tax. In addition, information about an individual's portfolio choice reveals information about her earnings ability, even controlling for observed labor income, if those who are more able tend to be less risk averse. By making use of this extra information about earnings ability, the tax system can be better tailored to redistribute from able to less able, for any given efficiency cost. Copyright Kluwer Academic Publishers 2004

Suggested Citation

  • Roger Gordon, 2004. "Taxation of Interest Income," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 11(1), pages 5-15, January.
    • Handle: RePEc:kap:itaxpf:v:11:y:2004:i:1:p:5-15
    DOI: 10.1023/B:ITAX.0000004780.68743.0d
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    1. Naito, Hisahiro, 1999. "Re-examination of uniform commodity taxes under a non-linear income tax system and its implication for production efficiency," Journal of Public Economics, Elsevier, vol. 71(2), pages 165-188, February.
    2. Roger H. Gordon & Joel Slemrod, 1988. "Do We Collect Any Revenue from Taxing Capital Income?," NBER Chapters, in: Tax Policy and the Economy: Volume 2, pages 89-130, National Bureau of Economic Research, Inc.
    3. Saez, Emmanuel, 2002. "The desirability of commodity taxation under non-linear income taxation and heterogeneous tastes," Journal of Public Economics, Elsevier, vol. 83(2), pages 217-230, February.
    4. J. A. Mirrlees, 1971. "An Exploration in the Theory of Optimum Income Taxation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 38(2), pages 175-208.
    5. Atkinson, A. B. & Stiglitz, J. E., 1976. "The design of tax structure: Direct versus indirect taxation," Journal of Public Economics, Elsevier, vol. 6(1-2), pages 55-75.
    6. Roger H. Gordon, 1985. "Taxation of Corporate Capital Income: Tax Revenues Versus Tax Distortions," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 100(1), pages 1-27.
    7. Gordon, Roger & Kalambokidis, Laura & Slemrod, Joel, 2004. "Do we now collect any revenue from taxing capital income?," Journal of Public Economics, Elsevier, vol. 88(5), pages 981-1009, April.
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    Cited by:

    1. Gordon, Roger H. & Kopczuk, Wojciech, 2014. "The choice of the personal income tax base," Journal of Public Economics, Elsevier, vol. 118(C), pages 97-110.
    2. David Hargreaves, 2008. "The tax system and housing demand in New Zealand," Reserve Bank of New Zealand Discussion Paper Series DP2008/06, Reserve Bank of New Zealand.
    3. Fossen, Frank M. & Simmler, Martin, 2016. "Personal Taxation of Capital Income and the Financial Leverage of Firms," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 23(1), pages 48-81.
    4. Peter Diamond & Johannes Spinnewijn, 2011. "Capital Income Taxes with Heterogeneous Discount Rates," American Economic Journal: Economic Policy, American Economic Association, vol. 3(4), pages 52-76, November.
    5. Stefania Albanesi, 2006. "optimal taxation of entrepreneurial capital with private information," 2006 Meeting Papers 310, Society for Economic Dynamics.
    6. Gordon, Roger H, 2017. "How Should Income from Multinationals Be Taxed?," University of California at San Diego, Economics Working Paper Series qt51c8q7nq, Department of Economics, UC San Diego.

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    More about this item

    Keywords

    taxation of interest income; taxation and portfolio choice; optimal taxation;
    All these keywords.

    JEL classification:

    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation

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