Since the Global Crisis, many governments around the world have initiated policies against tax evasion and harmful tax avoidance. This column uses data from an Austrian commuter allowance scheme to explore how the design of tax schemes and the social environment affect compliance. A substantial share of employees in the study misreport their commuting distance in order to receive more compensation. Employees also appear to be influenced by the misreporting behaviour of their co-workers, showing how tax evasion can have spillover effects.