The introduction of information reporting and pre-population of charitable tax deductions in Denmark in 2008 coincided with a doubling in the number of tax deductions claimed, and a 15 percent rise in the value of claims. We attribute this change to incomplete claiming of eliglbe charitable tax...

This paper analyzes a randomized tax enforcement experiment in Denmark. In the base year, a stratified and representative sample of over 40,000 individual income tax filers was selected for the experiment. Half of the tax filers were randomly selected to be thoroughly audited, while the rest...