All taxpayers who successfully assert their rights against the tax office or in court have one thing in common: they and their advisors master the procedural rules. The perfect reference work for this is the Schaumburg/Hendricks, now in its 5th edition. It presents all procedures up to the Federal Fiscal Court (BFH), the Federal Constitutional Court (BVerfG), and the European Court of Justice (EuGH) in an understandable manner and provides genuine process assistance with sample texts, examples, and behavioral recommendations. Update your process knowledge to the latest standards for the right tactics. In the context of judicial and extrajudicial legal remedy procedures, there are pitfalls and liability risks that many tax advisors are not aware of. The Schaumburg/Hendricks minimizes these risks by conveying the necessary knowledge and the right tactics for each procedure. A work for all procedures: legal remedies at the tax office, legal protection before the tax court, Federal Fiscal Court, Federal Constitutional Court, European courts, international legal remedies, legal protection in enforcement proceedings, and insolvency proceedings. The respective instruments and the costs of legal disputes are presented and explained, with numerous sample pleadings, formulation examples, and behavioral tips. Insights from first-hand sources. Edited and authored by the former Vice President of the Tax Court, Prof. Dr. Heide Schaumburg, and attorney/tax advisor Prof. Dr. Michael Hendricks. Four other experienced and practice-oriented authors complement the author team in this new edition: Vice President of the Tax Court Dr. Nadya Bozza-Splitt, attorney Prof. Dr. Axel Cordewener, LL.M., attorney/tax advisor Dr. Christina Hildebrand, and attorney Dr. Dominik Wedel. Comprehensive information from first-hand sources is thus guaranteed. A handbook in the best sense: fundamentals are explained as far as necessary for effective and practical problem-solving.