Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/299493 
Year of Publication: 
2024
Series/Report no.: 
IDB Working Paper Series No. IDB-WP-1600
Publisher: 
Inter-American Development Bank (IDB), Washington, DC
Abstract: 
In this study, we examine the behavior of self-employed taxpayers who "bunch" at an income level just below a critical threshold, which triggers a transition from a simple tax regime to a more complex one. Under the simple regime, individuals complete their tax forms independently, while the complex regime mandates the use of a public accountant for maintaining accounting records. Utilizing data from the Ecuadorian tax authority from 2011 to 2014, we initially observed and documented the bunching behavior prompted by the shift between regimes. Subsequently, we assess the impact of this regime transition on the amount of taxes paid by those self-employed taxpayers who choose to fill taxes in the complex regime. Our methodology employs both parametric and semi-parametric "donut" estimators to evaluate these effects. We find that the regime shift indeed prompts taxpayers to bunch below the income threshold, opting to remain within the simpler regime. Interestingly, those who transition into the complex regime tend to pay less in taxes. This pattern holds across various bunching windows and is consistent across several estimators used. Our results suggest that accountants are the key mechanism behind the effects, for they help taxpayers better navigate tax deductions and benefits, leading individuals to pay zero taxes.
Subjects: 
Tax Regimes
Progressive Taxes
Personal Income Tax
Bunching
JEL: 
H24
H26
D12
Persistent Identifier of the first edition: 
Creative Commons License: 
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Document Type: 
Working Paper

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