More than just tax advice for entrepreneurs
More than just tax advice for entrepreneurs
Welcome at Heller Consult - Austria's #1 experts for tax optimization. We provide everything you need as a successful “entrepreneur of the future”: tax consulting, business consulting and asset planning.
Welcome at Heller Consult - Austria's #1 experts for tax optimization. We provide everything you need as a successful “entrepreneur of the future”: tax consulting, business consulting and asset planning.

Smart setup. Effortless tax management.
Smart setup. Effortless tax management.
As specialists in tax optimization and business consulting in Austria, Liss Heller encourages you: “Be brave and overcome your fear – taxes are no mystery!” We’ve got your back so you can focus on what really matters: your core business.
As specialists in tax optimization and business consulting in Austria, Liss Heller encourages you: “Be brave and overcome your fear – taxes are no mystery!” We’ve got your back so you can focus on what really matters: your core business.

(Online) tax consulting

Business consulting

Asset accumulation

(Online) tax consulting
As an online tax consultant in the heart of Vienna, we are at your disposal for all questions relating to Austrian and international tax law.

Business consulting
We combine tax and business consulting and help you to develop into the “entrepreneur of the future” and achieve your personal freedom.

Asset accumulation
If you want financial freedom, now is the time to decide. We don’t just help you reduce your taxes – we show you how to free up more money for investing and building your wealth.
Decide with confidence. Emotionally smart, rationally clear, and tax-legal.
Decide with confidence. Emotionally smart, rationally clear, and tax-legal.
Our advisory approach also integrates insights from modern neuroscience, helping you make the right decisions – emotionally, rationally, and fully tax-compliant.
Our advisory approach also integrates insights from modern neuroscience, helping you make the right decisions – emotionally, rationally, and fully tax-compliant.


Our services
Here’s what Heller Consult customers say
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Quick and hassle-free
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Strong support during your company’s launch phase
Thank you for the excellent advice, especially during the startup phase. The bookkeeping is done properly, and there is a great deal of expertise in tax consulting and tax optimization. Highly recommended, with friendly staff.
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Heller Consult is on it – every step of the way!
What we appreciate most is that there is always a very acceptable solution! We found ourselves in a delicate situation where other tax advisors gave up — but not at Heller Consult. Their professional expertise is unmatched. What also impresses us is their fearless approach. Always looking forward with courage and moving ahead boldly.
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Think outside the box
Heller Consult places great value on personal, individualized advice. Mag. Heller’s ability to think outside the box is exceptional – she immediately recognizes the potential of new business concepts. With her insights, professionalism, and creativity, she is a valuable asset to any company.
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One of the best in the field
Liss Heller impresses with her competence, expertise, and experience as a tax and business consultant as well as a business coach. She always has another idea, a fresh perspective for her clients. Moreover — and this is by no means a given — she is always ready to support and motivate, sometimes even pro bono during times of crisis. She is not only one of the best in her field; she is certainly the very best and most dedicated advocate for her clients.
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Great partner network
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Back on track with Heller Consult
I came to Heller Consult because my previous tax advisor caused complete chaos. Heller Consult and Liss Heller really brought order back, and I feel very well taken care of at Heller Consult.
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Attentive & reliable
The support from HELLER CONSULT is not only thorough, attentive, and reliable — it also results in a substantial tax refund! In all my years of professional experience, HELLER CONSULT is by far the BEST tax advisory firm I have worked with! I am confident that they are top-notch in all other areas of their expertise as well!
Establishing a GmbH
Smart, fast, and hassle-free.
From contract drafting to notary appointment.
About us
We foster a respectful and friendly atmosphere and aim for a long-term collaboration with you. We meet you as an equal and provide holistic advice covering taxes, business, and your wealth-building journey.

Liss Heller
Austria’s #1 expert in tax optimization and asset growth

Mario Dohnal
Business Success

Coming soon: You?
Is your heart ❤️ beating for numbers? Do you feel at home in tax consulting? Then we should definitely get to know each other!
Latest blog posts
We provide you with tax tips and ideas that improve your entrepreneurial life.
Please note: Our blog is currently available in German only.