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Achim Mossmann

Principal, Tax

KPMG in the U.S.

Achim Mossmann leads KPMG’s Mobility Consulting Services (MCS) group within the Global Mobility Services (GMS) practice and has over 20 years of experience in domestic and international Human Resources in the U.S. and Europe. Achim has extensive knowledge in all aspects of expatriate management ranging from international payroll and administration, process review and process improvement, and policy development, design and implementation. Furthermore, he has a strong background in compensation and benefits and has worked as an HR generalist in staff and line functions. Prior to joining KPMG, Achim was the head of the International Human Resources organization of a major German electronics and engineering conglomerate in the U.S. where he was responsible for assignment administration and policy development. Achim supports currently several global companies with their assignment administration and policy and process re-engineering and oversees global engagements.

Professional and Industry Experience

Achim’s specialization applies across all markets and subsequently he has provided services to a vast range of clients in terms of size, global locations, and industry (e.g., electronics, engineering, energy, financial services, food & beverage, healthcare, high technology, industrial products, not-for-profit, oil & gas, pharmaceuticals, retail & consumer products, and telecommunications). Due to the variety of his roles in the field of international and domestic Human Resources in industry, Achim is able to draw upon practical experience to highlight not only current market practices but also developing trends and practices in various industries.

Publications and Speaking Engagements

Achim is a frequent speaker at industry seminars and roundtables. His speaking engagements cover topics ranging from assignment policy benchmarking to international payroll processes and outsourcing and other Human Resources and Global Mobility topics. Achim is also frequently quoted in industry and general publications such as the International Herald Tribune and the LA Times.


Education and qualifications

  • JD Law, Freie Universitaet Berlin, Germany


  • Society for Human Resource Management (SMRM)


  • English

  • German

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