Field help:
(2019)
Assessment value - reference number
Enter also the assessment value reference number. This is noted, for example, on your notice of assessment or real estate tax assessment. In most real estate tax assessment notices, it can be found under "Aktenzeichen der Bewertungsstelle" (Reference number of the valuation office).
An entry is not necessary only if no assessment value has been determined for the rental object.
Note: Please enter the assessment value reference number without special characters (e.g. "space", "/" or ".").