The DSFin-TW transaction data schema is only relevant for companies dealing with taximeters and odometers. It is based on a defined set of legal requirements for taximeters and odometers (DSFinV-TW) aimed at providing standardized data exports for tax audits in Germany.
For this purpose, the dsfinvtw_v1
schema within the SIGN DE V2 API endpoint Start, update or finish a transaction should be used.
The official DSFinV-TW documents can be downloaded via the German Federal Central Tax Office website.