Manager - US/UK Cross Border Tax - London

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

This is an exciting opportunity for a Tax Manager to join EY’s market‑leading US/UK Cross‑Border Tax team. You’ll manage a diverse and complex portfolio of clients, ensuring outstanding client service across compliance and advisory engagements. You’ll also play a key leadership role — reviewing returns, managing staff, supporting their development, and upholding EY’s commitment to quality and integrity.

Key Responsibilities

• Manage a portfolio of clients with complex US and/or UK tax affairs, ensuring exceptional service and timely delivery.
• Plan and delegate work effectively, overseeing the end‑to‑end compliance process.
• Lead billing processes, ensuring deadlines and financial targets are met.
• Work with the Credit Control team to support timely payment of invoices.
• Review complex returns with accuracy and rigour, signing off completed work as agreed with senior management.
• Identify cross‑disciplinary tax issues (including estate, gift, IHT, or corporate tax) and coordinate with relevant specialists.
• Coach and mentor junior team members, supporting their professional growth and performance.
• Oversee the technical, personal, and administrative development of assigned staff, escalating personnel matters as needed.
• Maintain EY’s high standards of risk management, quality, and client service.
• Act as a role‑model for EY’s values, maintaining confidentiality and professionalism in all interactions.
• Collaborate flexibly across teams, providing support to colleagues to ensure smooth and efficient operations.

Skills and Attributes for Success

• ATT qualification and US tax certification (Enrolled Agent or CPA) — CTA qualification desirable but not essential.
• At least five years’ experience in professional practice, operating at a similar level.
• Strong technical knowledge of both US and UK tax compliance and advisory work.
• Proven ability to deliver high‑quality client service in person, by phone, and via email.
• Experience managing billing, reviewing and signing out returns, and overseeing junior staff.
• Excellent communication skills, both written and verbal.
• Strong organisational skills and the ability to work effectively under pressure.
• Great attention to detail and a high level of accuracy.
• Proven people management skills and the ability to build trusted relationships with colleagues and clients alike.
• Confidence to influence, persuade, and manage challenging client situations with professionalism and tact.
• The ability to work both independently and collaboratively as part of a team.
• Proficiency with relevant IT systems and tax software.

What we Offer

• 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.