Law, tax and authorities
DSFinV-K
Abbreviation for Digitale Schnittstelle der Finanzverwaltung für Kassensysteme
In short and in plain language
DSFinV-K is a German rule for data from cash registers.
It says how a firm hands over this data when the tax office checks it.
The files then have the same structure, whichever cash register a firm uses.
Definition
DSFinV-K stands for Digitale Schnittstelle der Finanzverwaltung für Kassensysteme, the German tax administration's digital interface for POS systems. It describes how data from electronic cash registers is exported for tax audits and unannounced cash register inspections, with a uniform structure and naming of files and data fields regardless of the system used. It is published by the Federal Central Tax Office (BZSt).