Tax advice
Legal advice
Auditing
Financing consultancy
Management consultancy
Holistic consulting – thinking ahead!

Tax advice
Legal advice
Auditing
Financing consultancy
Management consultancy
Holistic consulting – thinking ahead!

Tax advice
Legal advice
Auditing
Financing consultancy
Management consultancy
Holistic consulting –
thinking ahead!

Questions? We are happy to help.
Use our contact form and we will get back to you as soon as possible.

ACCONSIS is a holistic consulting company based in Munich. For over 60 years, we have been providing companies and wealthy private individuals with personal and trustworthy support.

More than 170 experts in the fields of tax and legal advice, auditing, financing and management consulting know their needs and the constantly changing requirements very well and advise them in five interlinked areas:

In focus: Make the most of tax opportunities early

Many tax planning opportunities remain unused because important decisions are considered from a tax perspective too late.
Good tax planning therefore does not start in December. It should be considered early when making investment, distribution, business and private decisions.

Find out why early planning matters and which areas can offer tax planning opportunities.

Five consulting areas from a single source

We provide you with interdisciplinary advice in the areas of tax consulting, legal advice, auditing, financing and business consulting with one contact person who coordinates your individual requirements. With us, you will always find exactly the right expert to take care of your needs in a needs-based and solution-orientated manner.

Topics & Solutions

For current key topics and special service requirements, we pool our interdisciplinary expertise in-house. This allows our clients to benefit from customised and needs-oriented solutions.

Clients

Restricted to certain sectors? Not with us! Whether you are an entrepreneur or a private individual – our experts always have your individual challenges in mind when providing personalised advice.

About us

ACCONSIS is an integrated consultancy firm based in Munich. Initially under the name of a predecessor company, for some years now as ACCONSIS, the company has been characterised for over 60 years by its trusting and very personal cooperation with well over 3,000 clients.

Management Circle - Company management of Acconsis in a meeting

Team

At ACCONSIS, you are supported by a team of more than 170 experts who form smaller competence teams for specific topics and areas. This means you can be sure that you always have the right expert at your side.

Working at ACCONSIS

If you would like to redefine your professional journey and develop yourself further, you’ve come to the right place. Discover many exciting arguments and current vacancies to become part of our motivated team!

Current expert contributions

Stay well informed with our latest articles from all areas of consulting.

Working Capital as a purchase price trap in an acquisition

The enterprise value has been negotiated, the bottles of sparkling wine are ready – and then the final calculation arrives. Working capital adjustments often shift the final purchase price by six- or seven-figure amounts. Anyone who does not understand this mechanism ends up paying more – whether on the buyer’s…
Read More

IP Management for start-ups: Tax and valuation

IP management provides the basis for ensuring that software, technical solutions, brands and know-how are allocated to a company in an economically appropriate and tax-efficient manner. For start-ups and innovative mid-sized companies, tax, accounting, valuation and robust documentation are particularly important alongside the protection of intellectual property.
Read More
Restrukturierung im Arbeitsrecht und Personalabbau

What employers need to consider under employment law when restructuring

Organisational changes, economic pressure or digitalisation may make larger-scale staff reductions necessary within a company. This is usually a multi-stage process and should be planned and implemented carefully. Mistakes in planning, social selection, works council involvement or any required mass redundancy notification can have significant legal and financial consequences.
Read More

Events

Would you like to learn about current topics and benefit from personal expert insights? Then join our events (held in German) and gain valuable tips from our speakers.

ACCONSIS Gastvortrag: Immobilienvermögen sichern und gestalten

26 October 2026, 5.30 – 7.30 pm

Acconsis-Webinar "Die Bewertung von Immobilien", 8 October 2026

ACCONSIS Webinar: Die Bewertung von Immobilien

8 October 2026, 5.30 – 7.30 pm

Event information Acconsis 30 november 2026

ACCONSIS Gastvortrag: Die lebzeitige Übergabe von Immobilienvermögen

30 November 2026 at 18:30 – 20:30

Awards & Cooperations

We are proud that our expertise and teams are regularly recognised and that we can draw on many years of valuable cooperation.

What our customers say

Posted on Google Google
Laura Mertel profile picture
Laura Mertel
5 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
R. Sennefelder profile picture
R. Sennefelder
6 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My consultation with Mr. Bürner was extremely helpful. He has a high level of professional expertise and is excellent at explaining complex matters in a clear and understandable way. I would definitely recommend him!
Posted on Google Google
Timo profile picture
Timo
11 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
David Millington profile picture
David Millington
24 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
A very informative, enlightening and friendly consultation with Herr Straßl provided answers and food for thought. We will be coming back for more!
Posted on Google Google
Abraham Thomas profile picture
Abraham Thomas
61 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Dr. Felix Siegel was excellent in clarifying (over a 1 hour call) several international / Indian property-sale related implications for German tax-resident individuals. Highly recommend.
Posted on Google Google
martina sprenger profile picture
martina sprenger
130 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
Henry Quitt profile picture
Henry Quitt
134 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I can wholeheartedly recommend Kerstin Weidenbach-Koschnike. Especially in the area of tax structuring and international tax law, I felt comprehensively supported from the very beginning. The right questions were always asked—not just on the surface, but with a deep understanding of my individual situation and long-term goals. What impressed me most is that the quality of the advice becomes even more evident after implementation. Everything is well thought out, sustainable, and works in practice exactly as planned. Working together is also a great experience on a personal level—extremely friendly, warm, and at the same time highly competent. Even complex international matters are handled with confidence, and communication in English is seamless. Thanks to a strong global network, cross-border issues are covered exceptionally well. I would particularly highlight the strong entrepreneurial mindset—this is not just about optimizing taxes, but about thinking strategically and holistically. I am more than satisfied and would choose to work with this advisor again at any time.
Posted on Google Google
Wyatt Bai profile picture
Wyatt Bai
187 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
Bernhard Stark profile picture
Bernhard Stark
264 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
Nick Radovskiy profile picture
Nick Radovskiy
312 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very open and professional communication
Posted on Google Google
Hasse Hansen profile picture
Hasse Hansen
425 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a question for taxes and crypto, which I quickly got an appointment with Acconsis and had a good conversation with Dr Christopher Arendt. He explained the details well and answered all my questions.
Posted on Google Google
Margarete Hapfelmeier profile picture
Margarete Hapfelmeier
1641 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
d gh profile picture
d gh
1763 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Posted on Google Google
Martin Schmaus profile picture
Martin Schmaus
3121 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.