WISO Steuer

WISO Steuer
DeveloperBuhl Data Service GmbH
ReleaseMarch 1991
Operating systemWindows, macOS, iOS, iPadOS, Android
PlatformDesktop, web, mobile
TypeTax preparation software
LicenseProprietary
Websitewww.buhl.de/steuer/

WISO Steuer is a German tax preparation software available for desktop, web and mobile platforms.

History

The software was first released in 1991 under the name WISO Steuer-Sparbuch. It was marketed in connection with the German ZDF business television programme WISO. In 1999 Buhl released the web application WISO Internet-Sparbuch enabling users to submit tax returns online. In 2023 Buhl renamed WISO Steuer-Sparbuch to WISO Steuer.[1]

Features

WISO Steuer handles the preparation and electronic submission of German tax returns through the official ELSTER interface. It's supports employee cases, investment income, self-employed, international tax cases, and freelancers, including EÜR accounting.[2][3]

The software can import wage-tax certificates, pension data and insurance data. It can also retrieve tax assessment notices (Steuerbescheide) and compare them with the submitted tax return.[4]

Other functions include receipt scanning, plausibility checks and bank-account data import. WISO Steuer has recently developed SteuerGPT, an AI-based chatbot for tax questions.[5]

Publisher

WISO Steuer is published by Buhl Data Service, a privately held, family-owned software company headquartered in Neunkirchen. The company reported revenue of €185.4 million for 2024.[6]

Reception

Computer Bild has described it as a comprehensive software for both simple and more complex tax situations in its 2026 review.[7]

Finanztip has selected WISO Steuer as its overall recommendation in its last comparison.[8]

See also

References

  1. ↑ Hanekamp, Tino (1999-08-10). "Bei schalem Sekt fing alles an". Berliner Zeitung (in German). Retrieved 2026-05-16.
  2. ↑ "WISO Steuer: Nr.1 App für die Steuererklärung". WISO Steuer: Nr.1 App für die Steuererklärung (in German). Retrieved 2026-05-16.
  3. ↑ "Einnahmen-Überschuss-Rechnung (EÜR)". WISO Steuer: Nr.1 App für die Steuererklärung (in German). Retrieved 2026-05-16.
  4. ↑ Hoyer, Niklas (2024-04-12). "Wiso Steuer im Test 2024: Kosten, Erfahrungen & Co". www.wiwo.de (in German). Retrieved 2026-05-17.
  5. ↑ "SteuerGPT: Mit KI die Steuererklärung im Handumdrehen erledigen". WISO Steuer: Nr.1 App für die Steuererklärung (in German). Retrieved 2026-05-16.
  6. ↑ "BUHL DATA SERVICE GmbH" (in German). Northdata. Retrieved 2026-05-16.
  7. ↑ "WISO Steuer 2026 im Test". Computer Bild (in German). Retrieved 2026-05-16.
  8. ↑ "Steuerprogramm & App: Wiso, Taxfix & Co. im Vergleich". www.finanztip.de (in German). 2015-02-19. Retrieved 2026-05-16.
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