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Gülsün SchöllhornGS

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Freelancer profile translated to English.
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About Gülsün

Experienced expert for Tax Compliance and Tax Compliance Management Systems (Tax CMS).

I support companies – especially in complex group structures – in establishing, implementing, and sustainably developing Tax Compliance Management Systems (Tax CMS). The goal is to systematically manage tax risks and establish audit-proof, practical tax compliance structures.
As a lawyer and certified business administrator, as well as a certified Tax Compliance Officer, I work at the interface of tax, compliance, and operational business processes. My focus is on identifying, assessing, and managing tax-related risks (Tax Risks), implementing effective tax controls, and structured, audit-proof documentation within the framework of a Tax Compliance Management System.

Typical Areas of Application
  • Design, implementation, and further development of tax-relevant internal control systems (ICS)
  • Establishment and further development of Tax Compliance Management Systems (Tax CMS)
  • Identification, assessment, and management of tax risks (Tax Risks)
  • Design and implementation of effective tax controls
  • Structured documentation and preparation for effectiveness reviews

Areas of Expertise
  • Tax Compliance / Tax Compliance Management Systems (Tax CMS)
  • VAT / Value Added Tax
  • Lump-sum taxation according to § 37b EStG
  • International tax processes, including TP, PE, FE, WHT

I manage Tax CMS projects holistically – from conception and implementation to further development and effectiveness reviews. I combine in-depth legal analysis with strong business process expertise and a pragmatic approach to implementation.
I place particular value on practical, sustainable, and operationally viable solutions that are not only formally convincing but also withstand tax audits.
  • German

    Native or bilingual

  • Turkish

    Native or bilingual

  • English

    Conversational

  • Italian

    Conversational

  • French

    Basic

Can work on-site
München (up to 50km)

Experience

  • H.C. Starck GmbH
    Tax Manager
    CHEMICAL
    May 2011 - September 2012 (1 year and 4 months)
    München, Germany
    • Handling of issues and preparing expert opinions on complex national and international tax law matters
    • Independent support of tax audits
    • Participation in group-internal restructuring measures
    • Preparation of tax returns for German group companies
    • Communication and coordination with external advisors and tax authorities
    International Tax Law / Corporate Tax Value Added Tax / VAT Expertise Supporting Tax Audits Strong Analytical Skills in Complex Tax Matters (VAT, CIT, Payroll Tax, TP) International Permanent Establishment Analysis & Tax Risk Assessment
  • Keenfinity GmbH
    Interim Manager Tax
    TECH
    October 2025 - December 2025 (2 months)
    Munich, Germany
    • Analysis and optimization of VAT processes; identification of potential improvements
    • Handling of payroll tax and social security contribution issues
    • Ensuring compliance with legal regulations and internal policies within the scope of assigned tasks
    • Preparation of reports, documentation, and recommendations for action
    Value Added Tax / VAT Expertise Strong Analytical Skills in Complex Tax Matters (VAT, CIT, Payroll Tax, TP) Tax Project Work & Group-Wide Coordination Lohnsteuerliche Pauschalversteuerung & betragsrechtliche Bewertung (§ 37b EStG) Process & Compliance Assurance (Policies, Documentation)
  • Schleich GmbH
    Interim Manager Tax
    ENTERTAINMENT AND LEISURE
    March 2025 - June 2025 (3 months)
    Munich, Germany
    • Optimization of VAT processes (e.g., Tax Codes, chain transactions including SAP adjustments) and coordination of declarations
    • Coordination of local providers in Germany, EU, and third countries on national/international issues and tax compliance
    • Preparation of transfer pricing documentation, including transaction matrix and contract adjustments
    • Collaboration with various departments focusing on the compliant integration of tax requirements into internal processes. Support for customs-related topics with VAT relevance to ensure compliance and uniform procedures
    Worldwide Coordination of Local Companies including Compliance Deadlines Value Added Tax / VAT Expertise VAT Process Design (Tax Codes, Chain Transactions, SAP Mapping) Transfer Pricing Documentation (Local File, Transaction Matrix, Adjustments) Coordination with Legal on Disclosure and Publication Obligations

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Education

  • Certified Business Administrator
    Diplom-Kauffrau
  • LL.B.
    Fernuniversität Hagen
    Jurastudium

Certifications

  • Certified Tax Compliance Officer
    DIZR e. V.
    2020
  • Certified VAT Expert NWB
    NWB
    2022

Skill set

Categories