The practical commentary explains the provisions of the Inheritance Tax Act and the related regulations of the Valuation Act in a compact and concise manner. It reflects the current state of legislation, case law, administrative instructions, and literary debate – including current issues such as the impacts of the Corona pandemic as well as the KöMoG and MoPeG on the taxation of business succession. The practical commentary on the Inheritance Tax Act and Valuation Act establishes connections to inheritance tax law for optimal advice in inheritance law and succession planning, as well as in family law. It incorporates references to civil law regarding acquisition facts, provides assistance with valuations and tax calculations through examples and sample calculations, explains double taxation agreements, outlines structuring options, and supports the handling of legal remedies in inheritance tax matters. The commentary offers valuable assistance in the application of inheritance tax and valuation law for practical use.