Join EY in London as a Senior Manager - US/UK Cross Border Tax on a permanent, full-time basis with a hybrid working arrangement (minimum two days in the office). In this role, you will manage a portfolio of high-net-worth clients, deliver complex US and UK tax compliance and advisory services, and mentor junior team members.
Requirements
ATT qualified and authorised to practise US tax (EA or CPA).
CTA qualification is desirable but not essential.
Significant tax experience at a similar level within a professional practice.
Proven experience advising non-domiciled individuals and high-net-worth clients, including signing off US/UK tax returns.
Strong leadership, relationship management, and financial performance skills.
Skills & Responsibilities
US/UK Tax Expertise: Deliver comprehensive compliance and advisory services for international high-net-worth individuals, family offices, and funds.
Portfolio & Financial Management: Manage allocated client portfolios, lead billing processes, and oversee work to meet strict deadlines.
Review & Risk Mitigation: Conduct complex final reviews of tax returns, sign off completed returns, and manage tax risk.
Team Leadership & Development: Provide coaching, performance feedback, and professional development support to junior team members.
Potential transition routes: People from senior tax manager or private client tax roles in professional services may bring strong advisory and client management skills, alongside meeting mandatory US/UK tax qualifications.
Job description
At EY, we’re all in to shape your future with confidence.
We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.
Join EY and help to build a better working world.
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’re seeking an experienced Senior Tax Manager to join our Private Client team, managing a diverse portfolio of clients with complex US and/or UK tax affairs. You’ll play a key role in delivering outstanding client service across compliance and advisory matters, developing junior team members, and supporting business growth through effective portfolio management.
This role offers exposure to challenging advisory work, collaboration with Directors and the wider EY Private network, and excellent opportunities for progression to Director and beyond, along with potential secondments across EY.
The Team Our US/UK Cross Border team advises international high-net-worth individuals, family offices, private equity and hedge fund principals, and high-profile professional partnerships. We provide a full range of tax services — from compliance and residence/domicile advice to transactions, wealth optimisation, and succession planning.
Key Responsibilities
Manage an allocated portfolio of clients, ensuring a consistently high level of service.
Plan, delegate, and oversee work effectively to meet deadlines and maintain quality standards.
Lead the billing process and collaborate with the Credit Control team to ensure prompt payment of invoices.
Conduct complex final reviews to ensure accuracy, manage risk, and uphold quality.
Sign off completed tax returns as agreed with senior staff.
Demonstrate a broad understanding of related tax areas (e.g., estate/gift tax, IHT, corporate tax) and identify when to engage internal specialists.
Provide ongoing coaching, guidance, and performance feedback to junior team members.
Support the technical, personal, and professional development of allocated staff, managing performance issues with HR guidance when needed.
Ensure all compliance work meets EY’s high standards, minimising risk and maintaining excellent client service.
Act as a role model for EY’s values, maintaining the highest levels of confidentiality and professionalism.
Work collaboratively across teams, providing support to colleagues to ensure the smooth and efficient running of the practice.
Qualifications
ATT qualified and authorised to practice US tax (EA or CPA).
CTA qualification desirable but not essential.
About You
Significant tax experience at a similar level within a professional practice.
Proven ability to deliver high-quality client service, both in person and via phone/email.
Strong technical experience across a full range of client tax requirements, including signing off US/UK tax returns.
Proven experience advising non-domiciled individuals and high-net-worth clients.
Excellent leadership, communication, and relationship management skills.
Ability to manage complex workstreams and deliver high-quality outcomes under pressure.
Experienced in billing and managing financial performance.
Skilled at leading, developing, and managing junior team members.
Highly organised, detail-oriented, and able to work well under pressure.
Strong numerical and analytical abilities with sound IT skills.
Confident in managing client relationships, including the ability to influence and respectfully challenge when needed.
A proactive team player who also works effectively independently.
Supportive, collaborative, and committed to maintaining a positive team culture.
What We Offer
Global Exposure – Work with international clients and teams across EY’s global network.
Career Progression – Develop new skills, lead high-impact projects, and shape your career path.
Support & Coaching – Learn from industry leaders and receive mentoring at every stage.
Flexible Working – We support hybrid working and encourage a healthy work-life balance (minimum two days in the office).
Total Rewards Package – Competitive salary, comprehensive benefits, and exclusive EY perks.
Inclusive Culture – Thrive in an environment that values authenticity, diversity, and inclusion
To help create the best experience during the recruitment process, please describe any disability-related adjustments or accommodations you may need.
Whoever you are, whatever your background, you are valued, supported, and empowered to be your best.
Ready to lead, inspire, and make an impact? Apply now.
EY | Building a better working world
EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.
Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.
EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.
