Andrew Sommerville
Senior Manager - International Tax @Orbitax
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WORK HISTORY
Senior Manager - International Tax @Orbitax
Combine tax domain expertise in complex US international tax provisions including GILTI, FDII, BEAT, Subpart F, and FTC with a technology-forward approach to deliver scalable, compliant, and user-friendly international tax software solutions. Lead the development and refinement of the Orbitax International Tax Calculator (ITC), a US outbound tax solution used by corporate tax departments and public accounting firms for provision and compliance across global entity structures. Collaborate with development and QA teams to integrate new tax law changes, resolve technical issues, and implement client-driven enhancements. Oversee testing and validation of each ITC release, ensuring technical accuracy and readiness for client deployment. Serve as a senior escalation point for complex tax and workflow inquiries, providing expert guidance and resolution. Lead onboarding and training for clients and internal teams, mentoring staff and ensuring high-quality implementation and support.
EDUCATION
University of Canterbury
Bachelor of Laws (LLB), Law
SKILLS
ABOUT ANDREW SOMMERVILLE
Andrew is a Senior International Tax Manager at Orbitax, where he leads development of the International Tax Calculator. Focused on U.S. outbound tax and technology implementation, he combines technical expertise with a collaborative approach to deliver practical, user-friendly solutions. Andrew was previously a Manager in EY\'s International Tax Services team in Boston. He has extensive experience in US international tax issues: Calculating US inclusions into Federal taxable income (GILTI, FDII, Subpart F and BEAT); Performing computations of 163(j) and FTC limitation; Assisting multinational enterprises with preparing their tax provision; Preparing and reviewing Forms 5471, 8858, and Structuring the tax aspects of multinational mergers, acquisitions and dispositions, along with drafting tax opinions, memos, structure decks, and Excel models; Assisting audit teams with reviewing the international aspects of a company\'s financial reporting.Andrew previously led EY\'s cryptocurrency and blockchain practice in Auckland, New Zealand. A long-time Bitcoin and Ethereum enthusiast and regarded as a specialist in the nascent areas of cryptocurrencies and smart contracts. A deep understanding of blockchain technology and a strong proponent of decentralized finance (DeFi).
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