Like state and local tax in the U.S., where tax exposure can be underestimated by many corporate tax planners, the V.A.T. rules in the E.U. contain many pitfalls. This is especially true when it comes to recovery of V.A.T. input taxes by holding companies. A corporate tax adviser may presume that all V.A.T. input taxes paid by a holding company are recoverable. Yet, despite abundant jurisprudence, debate continues regarding the V.A.T. recovery rights of holding companies. The starting point in the analysis is easy to state: Holding companies that actively manage subsidiaries can recover V.A.T., while holding companies that passively hold shares cannot. The problem is in the application of the theory, where the line between active and passive behavior is blurred by seemingly inconsistent decisions. Bruno Gasparotto and Claire Schmitt of Arendt & Medernach, Luxembourg, explain the rules and how they have been applied by the C.J.E.U.