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

Join one of the fastest-growing Global Mobility Tax teams in the market and play a key role in shaping its future. As a Senior Manager in our UK/US Global Mobility Tax team, you'll work with a diverse portfolio of dynamic, high-growth businesses and internationally mobile employees, helping clients navigate complex cross-border tax challenges while delivering commercially focused advice.

This is an exciting opportunity to join a team that has achieved sustained double-digit growth and continues to invest heavily in its people, technology, and advisory capabilities. You'll have the chance to influence strategic decisions, drive business development, and help shape the future direction of our UK/US Mobility offering.

Whether you are looking to broaden your client exposure, develop your leadership capability, or play a more visible role in a growing practice, this role provides the platform to do so.

Why Join This Team?

• Join a high-performing, fast-growing Global Mobility Tax team where your contributions will make a real impact from day one.

• Benefit from clear career progression, structured development opportunities, and the chance to help shape the future of EY.
• Amplify your impact with EY's market-leading technology and AI-powered tools, enabling you to work smarter and deliver exceptional client outcomes.
• Work on complex and rewarding UK and US cross-border tax projects for innovative, entrepreneurial, and rapidly growing businesses.
• Build meaningful relationships with senior stakeholders and trusted client contacts across a diverse portfolio.
• Develop your leadership skills by coaching and mentoring talented colleagues while continuing to grow your own career.
• Be part of a collaborative, supportive, and inclusive team culture where successes are celebrated and everyone is encouraged to contribute.
• Enjoy regular team events, social activities, and opportunities to connect with colleagues across the wider EY network.

What You'll Be Doing

As a trusted advisor to your clients, you'll combine technical excellence with commercial insight to help organisations manage the tax implications of an increasingly global workforce.

You will:

• Manage a portfolio of Global Mobility clients, with a focus on fast-growth and privately owned businesses.
• Build strong, long-lasting client relationships and become a trusted advisor on UK and US mobility matters.
• Lead the delivery of both compliance and advisory services across a broad range of mobility issues.
• Partner with colleagues across EY's international network to deliver seamless, cross-border solutions.
• Identify opportunities to expand services and support business development initiatives.
• Lead complex advisory projects, bringing innovative thinking and practical solutions to clients.
• Coach, mentor, and develop junior team members, helping them achieve their career goals.
• Contribute to the strategic growth and success of the wider Global Mobility practice.

What We're Looking For

We're interested in experienced Global Mobility professionals who are passionate about delivering exceptional client service and excited by the opportunity to build something.

You'll likely have:

• Strong UK and US mobility tax advisory experience, including managing complex cross-border tax matters.
• Experience building relationships with senior stakeholders, including executives and C-suite leaders.
• A strong track record of managing client portfolios and leading advisory engagements.
• Experience reviewing complex UK and US Federal and State tax returns.
• Excellent project management and organisational skills.
• The ability to translate technical tax concepts into practical, commercially focused advice.
• A collaborative leadership style and a passion for developing people.
• An entrepreneurial mindset and enthusiasm for identifying new opportunities.
• ATT qualification and a recognised US tax qualification (EA or CPA).
• Experience operating at Senior Manager level within Global Mobility Tax, ideally 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 experts and be mentored by senior leaders.
• Flexible Working: We support hybrid working and work-life balance. Two days in the office. 
• Total Rewards Package: Competitive salary, benefits, and exclusive EY perks.
• Inclusive Culture: Work in an environment that celebrates diversity and authenticity.

Ready to lead, inspire, and make an impact? Apply now! 

To help ensure the best possible experience during the recruitment process, please let us know if you require any disability-related adjustments or accommodations.

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