In its decision of October 2, 2025 (case no. IV R 14/25), the German Federal Fiscal Court (BFH) commented on the effective book value application pursuant to Section 3 (2) of the German Transformation Tax Act (UmwStG). It confirmed its case law according to which this book value application can be made in the notarial deed on the conversion, a certified copy of which the notary sends to the competent tax office in accordance with Section 54 (1) EStDV.
Section 3 (2) UmwStG does not specify how the application for the valuation of assets at book value or an intermediate value is to be made. According to sentence 2 UmwStG, the application must be submitted to the tax office responsible for the taxation of the transferring corporation no later than the date of the first submission of the final tax balance sheet. It follows from this clear wording of the law that the application must be submitted by the transferring corporation (or by the acquiring legal entity as the legal successor). The lack of legal specificity regarding the form of the book value application carries the risk in practice that either a book value application as such will not be recognized or that a statement by the parties will be considered a valid book value application, which may mean that a decision is made too early and the option to choose the valuation method is thus “used up.”
In its current decision, the German Federal Fiscal Court states the following regarding the exercise of the book value application:
Notice:
In practice, it is very important that the option to choose the valuation method is exercised consciously (continuing to use book value is not always advantageous) and that a book value application is made clearly and unambiguously. A general “declaration of intent” in the notarial deed is not sufficient. On the other hand, it is also questionable whether an explicit book value application in the notarial conversion deed is advisable, as this would mean that the valuation option has already been used up. It is advisable to submit an application to the tax office in writing/electronically.

