Taxfix is a Berlin app for filing German income tax returns (Einkommensteuererklärung) for private individuals and freelancers. Users answer guided questions in the app or browser, receive an estimate of their refund and submit the return electronically through the official ELSTER interface. In the Expert option, independent tax advisers prepare the return, and the user checks and approves it.
Taxfix SE is based in Berlin and is named as data controller in its privacy policy. The policy states that customer data is stored in European data centres, and that documents and tax chatbot processing run in EU data centres. Some infrastructure may be maintained from the United States, and US providers such as Zendesk, Braze and Chargebee are used under the EU-US Data Privacy Framework or standard contractual clauses. The company is backed by venture investors, and the sources reviewed identify no majority owner. The app is proprietary and not available as open source or as a self-hosted application.