We use individual panel data and the introduction of simpler tax regimes for the self employed in France to assess the extent to which individuals’ shift towards the simpler tax regimes is driven by tax simplicity and by tax evasion motives. We find evidence of a quest for simplicity from estimating the amount of bunching at the eligibility thresholds for the simpler self-employment tax regimes, and from observing that bunching is increasing in the degree of simplicity of the tax regime. We argue that tax evasion plays a significant role in explaining individuals’ attraction towards simpler tax regimes. We develop a structural model to quantitatively assess the importance of simplicity and evasion motives for choosing a simpler self-employment regime. The model suggests a considerable preference for tax simplicity, ranging from 162 to 5654 euros per year per self-employed individual, which in turn entails a sizeable evasion elasticity.
Philippe Aghion, Maxime Gravoueille, Matthieu Lequien and Stefanie Stantcheva
5 May 2023 Paper Number POIDWP050
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