For inheritance tax purposes in particular, you must evaluate shares in companies according to § 12 of the Inheritance and Gift Tax Act (ErbStG). As a rule, you apply the simplified income value method. The legislator has standardized it in §§ 199 to 203 Ratingsgesetz (BewG). Please note that there is no connection with the income value of real estate according to § 184 BewG!
The simplified income method is a valuation method for sole proprietorships, capital companies and partnerships. The common value of these companies or the respective shares (participation ratio) is to be determined separately at the valuation date. This is how it regulates § 151 paragraph 1 no. 2 and 3 BewG. You distinguish between two operating modes:
This article does not replace tax or legal advice in an individual case. Facts, current law, jurisdiction, documentation and implementation remain decisive.