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JTR Tax & Advisory GmbH

JTR TAX & ADVISORY GMBH

Tax Advisory | Business Advisory | Berlin


EXPERTISE FOR SME & FREELANCER

National & International

About Us

As a newly established boutique tax and advisory firm, our work is grounded in over 25 years of experience in international corporate and advisory structures.

 

Today, we combine this experience with a modern, digital advisory approach and a clear focus on personal, trust-based collaboration.

 

We bring together entrepreneurial thinking with in-depth expertise in tax, accounting (HGB & IFRS), and CFO services—and a pragmatic understanding of the needs of businesses and freelancers.

Our Mission

As a tax and advisory firm based in Berlin, we support SMEs and freelancers operating both nationally and internationally throughout Germany at every stage of their development—from startup and growth to complex transformations.

Drawing on our hands-on entrepreneurial experience in both domestic and international contexts, we develop pragmatic solutions that provide targeted support to both growing companies and smaller organizations.

Our commitment is to build and strengthen our clients' financial and tax structures and processes on a sustainable basis—as a reliable partner who stands by your side even in challenging situations.

Transparency, reliability & strategic guidance—far beyond traditional tax compliance.

Clear advice, no jargon. Simple, straightforward, and fully transparent on services and costs.

Transparency
Reliability

Reliability and high quality are non-negotiable for us. We take care of your needs so you can focus on your business.

With a business-minded approach, forward-looking planning, and meaningful financial controlling, we support your growth.

Strategic guidance

CORE COMPETENCIES

Accounting & Reporting

Accounting & Reporting  

We don't just deliver reliable figures—we provide a solid foundation for business decisions. 

With digital processes and modern controlling tools, we deliver full transparency and a current view of your financial position, liquidity, and profitability.

Advisory 

Wir unterstützen Sie bei der Weiterentwicklung Ihres Unternehmens und Ihrer Strukturen.

 

From optimizing processes and reporting tools to strategic advisory—we lay a solid foundation for efficient workflows and decision-making.

IFRS

We assist you with the adoption, ongoing development, and operational implementation of international accounting standards.


With years of hands-on IFRS expertise, a structured approach, and a clear focus on practicality, we establish reliable reporting processes. 

Tax Advisory

tax advisory

We provide comprehensive advice on tax matters—delivered with expertise and tailored to your specific situation.


From day-to-day tax matters to complex tax structures, we deliver clarity, certainty, and sustainable tax planning opportunities. 

STARTING A BUSINESS

We help you get your business or freelance career off the ground—with a practical approach tailored to your goals.


From planning and legal structure to financial and tax matters, we support you every step of the way.

ADDITIONAL SERVICES

We go beyond traditional tax advisory—from CFO services and interim support to tax accounting matters. 


With our expertise and a clear focus on practical solutions, we create efficient structures, security, and flexibility.

Our Founder

Jan-Timo Rebisch

Over 25 years of international leadership experience in the financial and tax sectors—ranging from global corporations to advising small and medium-sized businesses and self-employed professionals—combined with qualifications as a tax advisor and Chartered Certified Accountant (ACCA).  

Qualifications
  • Tax Advisor (Germany)
  • Chartered Certified Accountant, ACCA
  • Dipl.-Kfm. (Master's equivalent) of Business Administration, Humboldt Universität zu Berlin
Languages
  • German 
  • English
  • French
Career milestones
Group - CFO
BFC Group | 2024-2024
Stuttgart, Germany
Amsterdam, NL & London, UK
Vivo Energy Group (Shell licensee) | 2014–2023
Group Vice President of Finance
Berlin, Germany & Montreal, Canada
Bombardier Inc. | 2003–2013
Finance Director
Berlin, Germany & Paris, France
PricewaterhouseCoopers (PwC) | 1998–2003
Audit Manager
Jan-Timo Rebisch
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