
International tax law. Tax advice. Audits.
Your tax adviser in Münster, since 1995. Over 30 years of experience, clients in more than 40 countries, fully digital processes.
Discover our services
Your tax adviser in Münster, since 1995. Over 30 years of experience, clients in more than 40 countries, fully digital processes.
Discover our servicesBook a free consultation
No obligation - we assess your needs

Clients worldwide rely on our expertise. We advise on permanent establishments, foreign participations and cross-border transactions, proactively and with a focus on structuring.
Customs valuation, AEO status, energy tax relief - a specialisation offered by very few firms in Germany. Both managing directors are certified specialists.
Advice in German and English. Through the TaxPlanet network we draw on experts in more than 40 countries.
We do not wait for you to ask. When tax-saving opportunities arise, we contact you. Regular training and internal knowledge-sharing ensure our team is always up to date.
Commercial and tax-law accounts with a dual objective: minimising tax liability while presenting your business favourably to banks and shareholders. Delivered to your preferred timeline.
We support you through tax audits, from preparation to representation before the tax authorities. Dedicated contacts, reachable even in urgent cases.
Ongoing bookkeeping with DATEV, digital document processing and monthly management reports. Available in English on request.
Punctual payroll processing with net salary optimisation through tax-advantaged benefits. Also for internationally mobile employees in Germany.
Target-actual comparisons, cost-centre analyses and contribution margin accounting - so you keep track of your business potential and product profitability.
Asset analysis, business property relief and cross-border inheritance cases. We know the planning options for real estate, usufructs and right-of-residence arrangements.
Targeted use of 10-year intervals and allowances across multiple generations for tax-efficient lifetime asset transfers.
From restructuring to transfer: we provide tax guidance through the entire succession process and monitor retention periods so that relief is not jeopardised.
Statutory and voluntary audits for SMEs and groups under HGB and IFRS. All auditors have tax expertise - for seamless advice beyond the audit itself.
Specialised in German subsidiaries of international groups. IFRS-to-HGB reconciliations and coordination with foreign group auditors, fully in English on request.
Business valuations under IDW S1, formation and merger audits, as well as audits under MaBV and for the public sector.
We serve you in Münster as tax advisers, certified specialists in international tax law and certified specialists in customs and excise duties, answering all your questions on German tax law, international tax law, customs law and excise duties.
As auditors we carry out statutory financial statement audits and other business assurance engagements. Business advisory services form the foundation for sustainable commercial success and are a central element of our advisory approach. Our team of dedicated professionals brings specialist expertise to every mandate.
We offer you excellent expertise, professional service and the best digital solutions. Our work begins by minimising your company's tax burden. But we want to do far more for you. That is why we constantly think about how tax advice and auditing can be made even more client-focused - and why we are regularly recognised as one of Germany's leading tax firms.
Your tax and audit team at Wolfgang Dittrich GmbH
"The advice is always competent and reliable. I feel in very good hands at this firm for all tax matters. Highly recommended!"
"We are always advised comprehensively and transparently, and receive highly competent support on all tax matters."
"Competent advice on complex tax matters with an international dimension. Tax audits were completed without any objections."
Rooted in Münster.
Connected to the world.
Since 1995 we have advised companies, mid-sized businesses and international clients - with a clear stance and short lines of communication.


Here you will find answers to the most important questions about our firm and our services.
Your question not listed? Contact usThe initial consultation is free of charge and without obligation. In a personal meeting we assess your needs and explain how we can help you.
A switch is possible at any time. We handle all communication with your previous adviser and ensure a smooth handover of all documents and data.
Yes, international tax law is one of our core competencies. Both managing directors are certified specialists in international tax law. We advise clients from more than 40 countries and work in both German and English.
We work with DATEV and rely on modern digital solutions. Documents can be submitted digitally at your convenience. In-person appointments and video conferences are of course also available.
We advise companies of all sectors and legal forms, from sole traders to international groups. We have particular experience with manufacturing businesses, trading companies and service providers.
Both managing directors are certified specialists in international tax law, a qualification held by very few tax advisers in Germany. In customs law we advise on customs valuation, AEO certification and energy tax relief. Through the TaxPlanet network we work with tax and legal experts in more than 40 countries.
Our managing director Wolfgang Dittrich has been invited as a speaker to the Zukunftstag Mittelstand 2026 of the Bundesverband mittelstandische Wirtschaft. The event takes place on 15 April 2026 in Berlin and is one of the largest economic-policy gatherings of German SMEs.
March 18, 2026Construction withholding tax (Bauabzugsteuer) - are you possibly required to withhold tax? If you commission construction services in Germany as a business, you may be required to retain 15% of the invoice amount and transfer it to the tax office.
December 3, 2025What are the advantages of a GmbH? Many new businesses are set up as sole trader businesses due to the lower administrative burden. Over the course of an entrepreneurial career, however, the question arises as to whether the legal form of a GmbH might be better suited to the circumstances of the business.
October 24, 2025
Free initial consultation - we assess your needs, give you a concrete quote and answer all open questions. You then decide at your own pace.
+49 251 686 110
Mon-Thu 07:00 - 13:00 & 13:30 - 16:00
Fri 07:00 - 13:00, Sat-Sun closed
info@muenster-stb.de
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Haferlandweg 16
48155 Münster · Car parking available
Confidential & secure, professional duty of confidentiality under § 57 StBerG
Initial consultation free of charge and without obligation