T1 Advisory is an independent advisory company founded by highly qualified experts in the area of transfer pricing advisory and compliance.
Our clients value us for our profound expertise in delivering customized solutions and tactical guidance on transfer pricing compliance with adherence to OECD guidelines. Our company comprehends the industry’s complex challenges, including limited resources and demanding workloads.
We distinguish ourselves by our ability to offer precise, timely, and tailored advice focused on transparency, accuracy, and personalization. We continue to build strong and enduring partnerships with our clients, which we have established through reliable communication, trust, and cooperation.

Our Core Values are the pillars that support our corporate culture and prove the strength of our team. They shape our actions, fuel our decisions, and enable us to provide our clients with the best experience.

Expertise
We possess comprehensive knowledge of transfer pricing procedures that allow us to integrate the latest compliance regulations to offer cutting-edge advice consistently.

Client-Centric Approach
We place our clients at the center of everything we do. Our core strategy focuses on their needs, for which we design and develop tailor-made solutions.

Collaboration
We see collaboration as inclusive, bringing clients and industry experts together to remain at the forefront of market trends and effective compliance strategies.

Integrity
We adhere to the highest standards of integrity, offering unbiased and clear guidance in all our actions, ensuring trust and accountability.

Excellence
We are dedicated to delivering excellence in all aspects of our work. Giving our best, we aim for exceptional quality in our advice, documentation, and support.

Efficiency
We aim to simplify the complexities of transfer pricing compliance, helping our clients effectively understand and meet their workforce and budgetary obligations.
Our mission at T1 Advisory is to help companies navigate the complex framework of transfer pricing regulations and compliance. We assist our clients in adhering to local and international OECD standards, diminishing compliance risks, and strengthening strategic benefits. We are committed to crafting all solutions to ensure that our clients’ transfer pricing strategies are not just compliant but also aligned with their overall business objectives. We cherish timeless relationships that we build on shared values and professional integrity.

T1 Advisory Managing Director
Tetiana has over 8 years of transfer pricing compliance experience, starting her career path at one of the Big4 companies in Frankfurt am Main. In addition to transfer pricing, she specializes in international tax compliance, including support with tax audit requests and complex financial accounting.
Having wide-ranging experience in successfully delivering high-priority projects for large corporations and financial institutions, Tetiana has the skills to create and implement end-to-end, bespoke solutions aligned to each client’s unique situation.
Tetiana always has a refreshing approach and an unmatched commitment to clients’ success.
Languages
German, English, Russian, Ukrainian
Mariana is a transfer pricing professional with a keen eye for detail and current industry knowledge. She is committed to supporting the preparation of transfer pricing documentation while guaranteeing adherence to global standards and industry best practices.
Driven by a commitment to accuracy, collaboration, and continuous learning, Mariana is integral to T1 Advisory’s mission to provide its clients with the best transfer pricing solutions.
Languages
English, Russian, Romanian

T1 Advisory Professional
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