wundertax: Steuererklärung App

Tax returns made easy online with the wundertax tax app

With the wundertax tax app, you can complete your tax return quickly and easily online - 100% in English. The app is specially designed to guide you through the process step by step. Thanks to simple questions and clear instructions, you can complete your tax return without any prior knowledge.
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Who is the app for?
The tax app is suitable for employees and public servants who want to complete their tax return online. Even without tax knowledge, your tax return is a piece of cake with wundertax. Simply grab your income tax statement and be done in 20 minutes. On average, you'll get €1,063 back.

Married couples, parents, landlords, students, pensioners and the self-employed use wundertax as usual in their browser.
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Supported tax years:
2023 / 2022 / 2021 / 2020 / 2019 / 2018
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Functions of the wundertax tax app:

// Simple process
You don't need any prior knowledge. Answer a few questions and the app does the rest.

// Maximum tax refund
Explanations & tax tips ensure an optimal refund.

// Plausibility check
Thanks to the integrated plausibility check, you avoid errors and are on the safe side.

// Live tax calculator
Always keep an eye on your expected refund.

// Maximum data security
Your data is safe thanks to state-of-the-art encryption technologies and software hosted in Germany.

// Outstanding support
Our customer support team is on hand to answer any questions you may have.

// Supported devices
If you want, you can continue with your tax return on another device (tablet, PC, Mac, other smartphone) at any time.
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Your advantages with wundertax:

• No language barriers: File your tax return 100% in English.
• Time saving: The tax return only takes about 30 minutes.
• Simple & fast: The intuitive user interface saves you time and effort.
• Secure & reliable: Highest security standards thanks to the ELSTER interface.
• Support: Our support team is always on hand to help if you have any questions.
• Transparent costs: The tax return only costs you €29.99.
• Sustainable: With your tax return with wundertax you protect 1 m² of forest for 1 year.
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This is how it works:

1. Register: Without obligation & for free.

2. Answer questions: Grab your income tax statement & answer simple questions in the tax interview.

3. Calculate your refund: Always keep an eye on your expected tax refund with our live tax calculator.

4. Check your entries: Review your data before you submit your tax return.

5. Submit to the tax office: We send your completed tax return online to the relevant tax office. *Everything up to this step is free of charge!

6. Receive your refund: You will receive your tax notice in a few weeks. On average, you will get € 1,063 back.
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Test it for free
Download the wundertax tax app for free and get started. Find out for free and risk-free how much you'll get back. Only pay when you submit your tax return. No hidden fees - fair and transparent, for just €29.99.

Download now & get started!

Add support for 2025 tax year