The Elasticity of Taxable Income: Estimates and Flat Tax Predictions Using the Hungarian Tax Changes in 2005

Péter Bakos, Peter Benczur and Dóra Benedek ()
Additional contact information
Péter Bakos: Royal Bank of Scotland
Dóra Benedek: Central European University, Ministry of Finance.

No 2008/7, MNB Working Papers from Magyar Nemzeti Bank (Central Bank of Hungary)

Abstract: Many Central and Eastern European countries are adopting flat tax schemes in order to boost their economies and tax revenues. Though there are signs that some countries do manage to improve on both fronts, it is in general hard to distinguish the behavioral response to tax changes from the effect of increased tax enforcement. This paper addresses this gap by estimating the elasticity of taxable income in Hungary, one of the outliers in terms of not having a flat tax scheme. We analyze taxpayer behavior using a medium-scale tax reform episode in 2005, which changed marginal and average tax rates but kept enforcement constant. We employ a Tax and Financial Control Administration (APEH) panel dataset between 2004 and 2005 with roughly 215,000 taxpayers. Our results suggest a relatively small but highly significant tax price elasticity of about 0.06 for the population earning above the minimum wage (around 70% of all taxpayers). This number increases to around 0.3 when we focus on the upper 20% of the income distribution, with some income groups exhibiting even higher elasticities (0.45). We first demonstrate that such an elasticity substantially modifies the response of government revenues to the 2004-2005 tax changes, and then quantify the impact of a hypothetical flat income tax scheme. Our calculations indicate that though there is room for a parallel improvement of budget revenues and after-tax income, those gains are modest (2% and 1.4%, respectively). Moreover, such a reform involves important adverse changes in income inequality, and its burden falls mostly on lower-middle income taxpayers.

Keywords: elasticity of taxable income; tax reform; behavioral response; revenue estimation; flat tax. (search for similar items in EconPapers)
JEL-codes: H24 H31 (search for similar items in EconPapers)
Pages: 36 pages
Date: 2008
New Economics Papers: this item is included in nep-pbe, nep-pub and nep-tra
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Citations: View citations in EconPapers (19)

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Working Paper: The Elasticity of Taxable Income: Estimates and Flat Tax Predictions using the Hungarian Tax Changes in 2005 (2008)
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