Indirect tax is an increasingly challenging area of tax law. All companies have to find their way in a complex, ever changing and not always entirely harmonised legal environment. Indeed, although VAT & customs law is harmonised on a European level, differences with respect to the implementation and application of these European rules remain between EU member states. The combination of innovation and digitalisation also causes new challenges. And, not the least, tax authorities become better organised and informed, more aggressive in auditing tax payers.