Tax Principal, Business Advisory

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the Role We're seeking an experienced Tax Principal to serve as a trusted business advisor and deep technical resource across our tax function. In this role, you'll partner directly with business, product, and go-to-market teams to advise on the tax implications of strategic initiatives, new products, commercial arrangements, and market expansion — translating sophisticated technical analysis into clear, decision-ready guidance that helps the business move quickly and confidently. You'll also assist with audit defense and dispute management efforts and conduct technical research and documentation for complex tax issues across the tax team. You'll navigate the evolving digital economy tax landscape, including digital services taxes (DSTs), Pillar 2, and emerging AI-specific tax regulations, while ensuring compliance across multiple jurisdictions. You'll be a go-to expert who can tackle sophisticated tax questions, prepare audit-quality memoranda, and translate technical concepts for business stakeholders. This role is critical to ensuring we have bulletproof tax positions, robust risk management processes, and comprehensive documentation as we face heightened scrutiny from auditors, tax authorities, and stakeholders in the rapidly evolving AI industry. Key Responsibilities Business Advisory & Transaction Support Serve as a strategic tax advisor to business, product, partnerships, and go-to-market teams on new initiatives, product launches, pricing and billing structures, and commercial arrangements Provide practical, business-oriented tax guidance on strategic transactions, including infrastructure and compute arrangements, as the company scales Review and negotiate tax provisions in commercial contracts, cloud service agreements, and partnership arrangements Advise on the tax considerations of international expansion and new market entry, partnering with cross-functional teams from early planning through execution Collaborate with Legal, Finance, and business teams on cross-functional matters, translating technical positions into actionable recommendations Technical Research & Documentation Research and document significant technical tax issues, including equity compensation and operational tax questions Prepare comprehensive tax technical memoranda meeting rigorous audit standards Conduct in-depth research on complex federal and international tax issues using primary sources (Code, regulations, case law, legislative history) Draft technical memoranda supporting material tax positions and planning initiatives Maintain tax technical research library and documentation standards Stay current on tax law developments and assess impact on Anthropic's operations Tax Compliance & Risk Assessment Partner with tax team members to assist with driving tax audit defense and dispute resolution efforts, including preparing audit defense files, coordinating responses to tax authority inquiries, and managing relationships during examinations and appeals processes Assist with quarterly and annual tax provision processes (FIN 48/ASC 740 compliance), analyze and document uncertain tax positions and related reserves, and support external auditor discussions regarding tax provision matters Required Qualifications JD or LLM in Taxation from an accredited law school Exceptional tax technical research and writing skills Deep expertise in US federal income tax research methodology and primary source materials Experience preparing technical tax memoranda for audit or IRS defense purposes Proven ability to translate complex tax technical concepts into clear, well-documented analysis and practical business guidance De