Senior Manager - UK/US Global Mobility Tax - London

At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you. And we’re counting on your unique voice and perspective to help EY become even better, too. Join us and build an exceptional experience for yourself, and a better working world for all. About EY Tax EY Tax is a market leader, renowned for delivering sustainable growth and empowering our people to shape their own careers. Our diverse, collaborative team advises on high-profile transactions, combining technical expertise, innovation and a genuine focus on continuous development. Join us to work on challenging, multi-country projects in a supportive, dynamic environment where your impact truly matters.   The Opportunity We are expanding our Global Mobility Tax team and seeking a Senior Manager who specializes in UK/US taxation. This role requires a highly skilled professional who can provide exceptional client service, navigate complex UK and US tax matters, and drive strategic insights.   As a dynamic and high-growth team, we have achieved double-digit growth and are focused on expanding our advisory offerings. We seek an individual with a forward-thinking, entrepreneurial mindset who aligns with our innovative and global client base. This role offers:

Clear career progression in a rapidly growing team A chance to shape the future of Global Mobility Tax

Key Responsibilities   At EY, we adopt a client-centric approach , acting as trusted business partners by proactively addressing challenges and delivering outstanding service. Your role will involve:

Managing a portfolio of Global Mobility clients, with a focus on private/fast-growth UK-headquartered organizations. Building and maintaining strong client relationships while providing high-quality tax services. Overseeing the day-to-day delivery of UK and US mobility tax compliance and advisory services, ensuring technical excellence. Collaborating across service lines and global teams to identify UK/US mobility opportunities. Driving new tax projects and developing business from existing and target clients. Mentoring and developing junior team members, while making strategic management decisions.

Skills and Attributes for Succes You’ll have:

Expertise in UK/US taxation, particularly in handling complex cross-border tax issues. Strong client relationship skills, including experience engaging with senior management, executives, and C-suite professionals. Project management skills, with the ability to plan, prioritize, and monitor budgets effectively. Ability to deliver clear, practical, and technically accurate tax advice in both UK and US contexts. Experience reviewing complex UK and US Federal/State tax returns and leading tax advisory projects. A team player with excellent communication and leadership skills. An entrepreneurial mindset, ready to embrace innovation and new ways of working. Ability to identify risks, review effectively, and escalate when necessary. A problem solver who is commercially aware and client focused.

Qualified member of the Association of Taxation Technicians (ATT) and qualified to practice US tax (Enrolled Agent (EA) or Certified Public Accountant (CPA)).

Chartered Tax Advisor (CTA) qualification is desirable but not essential. Experienced Senior Manager within Global Mobility Tax. Experience working within professional services.

What we Offer   At EY, we’ll help you develop future-focused skills and gain world-class experiences. You’ll be empowered in a flexible environment and supported by a diverse, inclusive culture of globally connected teams that fuel your extraordinary talents

Global Exposure : Work with international clients and teams across EY’s global network. Career Progression:  Develop new skills, take on leadership roles, and grow your career. Support & Coaching:  Learn from industry