Your German certified tax advisor

digital and direct

I offer you support in the responsible handling of your tax and commercial law matters, as well as expert tax advice—reliable, personalized, and based on many years of experience.

My clients are predominantly companies of all legal forms (e.g., GmbH, GmbH & Co. KG) with a focus on the service or real estate sector, and private individuals.

Marcus Kather M.A., Steuerberater

My expertise

Declaration services

✔Financial statements
✔Tax returns
✔ Accounting
(in selected cases)

Tax advice

✔ Starting a business
Real estate
and more ...

Digital cooperation

I run a modern, digitally organised tax firm based in Berlin. I purposely do not have traditional office space – experience has shown that face-to-face meetings are rarely necessary. 

With me, you always speak directly to the tax advisor – without changing clerks or long communication channels. I offer you personal, structured and reliable cooperation – on an equal footing and with a high level of professional quality.

Archiving your data and tax office mail

Your tax data is stored securely in the DATEV data centre. This ensures that I comply with all legal storage requirements and that your documents are stored digitally and accessible at any time

Have you granted me power of attorney for tax representation? If so, your tax mail will be automatically digitised at the DATEV scanning centre in Nuremberg and, once processed, conveniently made available to you on the MyDATEV portal.

Benefits of working with a tax advisor

Tax consulting is not only a commercial profession, but above all a legal one. For me, methodology and systematic application of the law are just as important as professional depth and absolute precision.

When you entrust your tax affairs to me as your certified tax advisor, you benefit from numerous advantages:

  • Extended filing deadlines: Regularly extended deadlines for your tax returns.
  • Experience and foresight: Proven knowledge to avoid typical problem areas—such as tax audits—at an early stage.
  • Reliability: Monitoring of all deadlines and filing dates so that nothing is overlooked.
  • Relief in everyday life: You can concentrate fully on your area of expertise without having to constantly deal with changes in legislation and case law.
  • Safety net: Professional liability insurance of up to €1 million minimizes potential risks (see Terms and Conditions).
  • Convenience: More peace of mind, time, and planning security—a little bit of convenience for you.

Up-to-date expertise

Tax advisors are part of the tax law organs and are subject to special professional regulations. This includes keeping up to date with the status and changes to tax laws and regulations, as well as having or, if necessary, acquiring significant legal knowledge relevant to the client’s mandate.

To ensure this, I have access to leading specialist databases (e.g. Beck-Online Steuerrecht Premium, DATEV Lexinform comfort, Haufe Steuer Office Excellence, Juris), including modern AI-supported research assistants. This is complemented by continuous training and professional networking with colleagues.

Consultation in English?

Communication can be conducted in English. However, please note that tax forms issued by the tax authorities and documents intended for publication in the Federal Gazette, for example, are only available in German. Knowledge of German (reading ability) is therefore a prerequisite for accepting a mandate. 

Marcus Kather, M. A.

Steuerberater