Build More Wealth Through Smart Tax Planning

Tax Consulting for Civil Engineers, Architects, Construction Companies & Real Estate Agents

In the construction and real estate industry, you don’t just need creative ideas for your projects – you also need smart strategies for your finances. We legally optimize your tax outcome so you can increase your profits, build wealth, and focus on your core business — with customized solutions in tax consulting and accounting.

Get informed now

500+ satisfied clients

Our credo: We’ve got your back – so you can focus on what you do best.

30+ years of experience

in supporting architecture firms and construction businesses: We know your industry. And we support you in areas far beyond traditional tax consulting.

Digital processes

Whether it’s digital bookkeeping, controlling, or travel expense reports – we continuously test tools (including AI tools) that make your entrepreneurial life easier.

Tailored solutions

Whether you run an architecture firm, a construction business, or work as a real estate agent — we optimize your tax position with precision and creativity to strengthen your business.

Do these challenges sound familiar?

The tax jungle is often more complex than any blueprint. You juggle creative ambition and tedious paperwork – while facing a range of tax and financial challenges:

Company vehicles

Should you lease or buy? Electric or combustion engine? We help you find the most tax-efficient solution, including eligible subsidies.

Travel & overnight stays

Which business expenses are deductible? How should you document them properly to benefit from tax advantages?

Office rent, software, workwear

Learn what you can deduct and how to lower your tax burden strategically.

Large-scale projects vs. small jobs

How do you ensure liquidity? We help you structure your cash flow, book income correctly, and plan provisions smartly.

Employees & contracts

What contract structures are tax-efficient? We'll show you which ones offer advantages and what to watch out for.

Balance sheet optimization

How can you reduce your tax liability? Discover how optimized financial structures bring long-term security and advantages.

And at the end of the day, you’re often missing the one thing that matters most:

Time – your lifetime.
Time to bring your ideas and vision to life.

You design spaces – we design your numbers

FINANCIAL TRANSPARENCY

No more unpleasant surprises: We give you a clear view of your numbers, deadlines, and opportunities.

LONG-TERM PARTNERSHIP

The better we know you, the better we can support you. Heller Consult has supported architecture firms, construction companies, and real estate professionals for 30+ years. Check out our reviews to see for yourself: Reviews

WEALTH BUILDING STARTS HERE

We help you reduce taxes and show you how to invest more into your practice, your projects, and your financial future.

MORE MONEY, LESS STRESS

We legally optimize your tax outcome – with precision and creativity – so more stays in your pocket.

CLEAR. PRACTICAL. STRAIGHTFORWARD.

We translate tax jargon into simple, actionable advice – and support you beyond pure tax consulting.

DIGITAL & EFFICIENT

With modern tools, your bookkeeping becomes as precise and streamlined as your designs, plans, and workflows.

Book your free initial consultation now

...with your tax consultant in Vienna.

“As a tax and business consultant, it's my mission to support and inspire you with 40 years of expertise in finance and taxation — so you can gain your personal (and financial) freedom.“

Liss Heller

CEO, Certified Tax Consultant

Our services for your profession

More details on what you receive:

Bookkeeping

Ongoing bookkeeping

Controlling

Tax Consulting

Ongoing advice — we legally optimize your tax outcome

Reporting

Financial Statements and Annual Accounts

Tax Audits

Payroll Accounting

Ongoing payroll and salary accounting

Social Security Consulting

Annual Evaluation

Business Consulting

Ongoing advice

Wealth Building

Business Coaching

Expansion Consulting

Digital Processes

Let’s talk if you are...

A CEO or managing partner of a GmbH (architecture, engineering, or construction firm)
A self-employed architect, civil engineer, construction professional or real estate agent
Working as a freelancer in the field

Here’s what Heller Consult customers say

⭐ ⭐ ⭐ ⭐ ⭐
Quick and hassle-free

Ms. Heller is an incredible person who answers all questions competently, thoroughly, and at the same time quickly and precisely. Every conversation with her is highly motivating. Her team also provides full support, and everything is handled swiftly and hassle-free! I’m very grateful to be supported by Heller Consult.

- Sigrid H.

Review via Proven Expert

⭐ ⭐ ⭐ ⭐
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.

- THON Baubetreuung GmbH

Review via Google

⭐ ⭐ ⭐ ⭐ ⭐
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.

- Mabon Film

⭐ ⭐ ⭐ ⭐ ⭐
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.

- Mr. A. via Proven Expert

Review via Proven Expert

⭐ ⭐ ⭐ ⭐ ⭐
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.

- Nicole Sofikis, Goodshoes

⭐ ⭐ ⭐ ⭐
Great partner network

Tax consulting and bookkeeping that think outside the box. Extensive knowledge in the online sector, perfect for everyone involved in FBA and e-commerce. Excellent partner network for international expansion. Thank you for the insightful tax advice.

- BIZMEDIA Kommunikationsagentur GmbH

Review via Google

⭐ ⭐ ⭐ ⭐ ⭐
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.

- Dimche S.

⭐ ⭐ ⭐ ⭐
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!

- Ulli Arnold

Ready to take your
business to the next level?

We look forward to meeting you.

Book your free initial consultation now

Build More Wealth Through Smart Tax Planning

Tax Consulting for Civil Engineers, Architects, Construction Companies & Real Estate Agents