As economic transactions often imply substantial financial risks, taxpayers would like to obtain certainty regarding the tax treatment of their future transactions. Due to the complexity of tax laws as well as due to the complex design of certain economic transactions, it may be difficult for the taxpayer to judge for himself the legal tax consequences of his actions. Therefore, taxpayers want to know the administrations legal interpretation of tax law in advance. Advance tax rulings, an instrument used by tax authorities of other European countries for years, were implemented by the Austrian legislator in 2011 in the field of transfer pricing, group taxation and changes of legal forms. These advance tax rulings are subject to a charge and the stated tax treatment of the respective not yet undertaken transaction is, under certain circumstances, binding for the tax authorities. The financial scandal called “Lux Leaks”, which revealed details about Luxembourgs tax rulings, attracted international attention. Since then tax rulings are also regarded as an instrument for tax avoidance and aggressive tax planning. As a reaction, an automatic exchange of information of advance cross-border rulings and advance pricing arrangements has been implemented by the European Union.