Request parameters

Parameters

The Excel file includes request parameters for EÜR, USt-VA, UStE and ZM.

17KB

Request parameters.xlsx

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Postman includes valuable examples.

Example IDs

File contains examples of Steuernummer, ELSTER Tax Number and Steuer-ID.

15KB

Example-IDs.xlsx

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Other helpful documents

The documents below were created by the German tax authorities. (If in English: Translated by Zem)

Validation of tax number

29KB

01-aufbau_steuernummern.xls

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List of tax offices (includes BUFA no.)

2MB

gemfa_xml_export_datei.zip

archive

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Export dated: 2026-01

gemfa_xml_export_datei.zip Source: https://www.bzst.de/DE/Service/Behoerdenwegweiser/Finanzamtsuche/finanzamtsuche.html#js-toc-entry2

56KB

Finanzamtsdaten.xlsx

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ERiC 43.3 (dated: 2025-12-01)