Your data is so safe with Taxfix

With such sensitive data as in your tax return, you can take a close look: Taxfix explains how your data is processed and which standards we observe.

Official ELSTER interface

Taxfix is connected to ELSTER, the online service of the German tax authorities. We therefore also use the official ELSTER interface to submit your tax return. The data transmission to the tax office is thus carried out according to the same security standards as directly via ELSTER. This is how we ensure that your tax return reaches its destination without detours and is processed quickly. With these measures, we have already helped millions of people to get their tax refunds safely and easily.

Multiple awards!

With Germany's most popular mobile tax app, you can do your tax return in no time.


Thanks to the API interface to ELSTER, your data will be securely transmitted to the tax office.


The consumer magazine Finanztip recommends Taxfix as tax software for a simple tax return.


More than 255.000 positive reviews with an average rating of 4.6 stars speak for themselves.

Made in Germany

Innovation meets quality. Taxfix is developed and designed in Berlin. By people from all over the world.

Highest data security

The security of your data is our top priority. That's why your data is secured with the latest encryption technologies and not passed on to third parties.

Our servers are located mainly in Germany and at most in other countries of the European Union. Thus, we strictly adhere to the GoBD and the DSGVO.

Now also for 2023!

At Taxfix you can now find all the updates for the new tax year 2023 and can get started with your return straight away.

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Developed by tax experts

Taxfix was designed together with over 90 tax experts and is constantly developed and maintained. This foundation, as well as constant review and updating, ensures that all technical content remains correct and current. Our close relationship with the tax office also helps us to get the most out of your tax refund.

Made in Germany

Taxfix is made in Germany, which means that development, design, data transfer, hosting and quality assurance take place mainly in Germany.