Wundertax review 2026
How good is Wundertax really?
62/100 points
kosten.org editorial team
Last updated: 2026-02-08
62/100
Points
Based on published terms and features
Wundertax stands out through its combination of AI-assisted tax tips and an optional tax adviser check. It is one of the few providers where you can have the finished return checked by a real tax adviser – for an extra charge, however.
Highlights of our Wundertax review
- Wundertax scores 70/100 points.
- AI tax tips + optional tax adviser check.
- €34.95 per filing, adviser check from €39.99 extra.
- Very simple interface for beginners.
Table of contents
1 Range of functions
20/35
Points
Wundertax covers income tax for employees and students. AI-assisted tips help with optimisation. No receipt scan, no automatic document retrieval. Direct ELSTER submission (the tax authorities' online filing system) is integrated. Optionally, a tax adviser can check the return.
Scoring (20/35): AI tips and the tax adviser option are strong. Deduction for limited tax types and missing document retrieval.
2 Usability
16/21
Points
The interface is kept very simple – ideal for beginners. Interview mode available. Help texts good. Carry-over from the previous year via import.
Scoring (16/21): Simple, intuitive interface. Good help.
3 Price & licence
14/21
Points
€34.95 per filing. Tax adviser check from €39.99 additional. Try for free. Only one return per purchase.
Scoring (14/21): Good base price, but the adviser check makes the package more expensive. Free trial version.
4 Platforms
6/12
Points
Web-browser-based. No dedicated app. No desktop version.
Scoring (6/12): Browser only. Cloud-based.
5 Support & security
6/11
Points
Email support. Tax adviser hotline for an extra charge. Hosting in Germany.
Scoring (6/11): Tax adviser available for an extra charge. Good data protection.
Pros & cons at a glance
Pros
- AI-assisted optimisation
- Tax adviser check possible
- Very simple interface
- GDPR-compliant
Cons
- Tax adviser costs extra
- Not for the self-employed
- No receipt scan/document retrieval
- Browser only
Conclusion: Wundertax review
62/100
Good (2.9)
Wundertax scores 70 out of 100 points and, with the combination of AI tips and an optional tax adviser check, offers an interesting concept. A good choice for users who want additional reassurance with their tax return.
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