The deterrence effect of real-world operational tax audits

We use a large administrative tax-returns panel dataset merged with tax audit database to estimate the effect of real-world operational tax audits on subsequent tax behavior. Our identification strategy and the institutional setting that we consider enable us to address potential endogeneity related to non-random selection of taxpayers to be audited. We find a positive and lasting effect of audits on subsequent reported income. However, in line with theoretical predictions, taxpayers do not increase tax compliance when the tax authority does not assess a positive additional income. Our results are robust to a variety of specifications and samples.