US/UK Personal Tax Assistant Manager

US / UK Personal Tax Assistant Manager
Job Type: Full Time, Permanent
Location: Mayfair, London
Salary: £Competitive

About Sopher + Co
Established in 1975, Sopher + Co is a leading firm of business advisers and accountants, trusted by entrepreneurs, high net worth individuals, expats, and professional partnerships. With roots in Elstree and a prestigious Mayfair presence, we have developed strong specialisms across over 20 industries, particularly in media and entertainment. Our success is built on our people — and we offer an environment that supports ambition, personal growth, and a commitment to delivering excellent client service.

The Opportunity
We are currently seeking an experienced US / UK Personal Tax Assistant Manager to join our growing team in Mayfair. This is an exciting opportunity to work across a high-profile client base, providing bespoke tax advisory and compliance services to US-connected individuals. You'll work closely with the Tax Director and wider team, taking ownership of a portfolio and supporting both clients and junior staff.

Key Responsibilities

• Deliver US and UK personal tax advisory and compliance services to high-net-worth individuals and expatriates
• Manage your portfolio’s financials, including WIP, billing and cash collection
• Attend new business meetings, assist in proposals, and prepare follow-up communications
• Monitor job progress and workflow, ensuring jobs are delivered within budget and deadlines
• Draft bills and manage productivity targets
• Coach and support junior team members, providing technical guidance and contributing to their development
• Supervise junior staff on information gathering and return preparation
• Stay current on relevant legislation, technology and industry developments
• Participate in internal and external training

What We’re Looking For

• At least 5 seasons’ experience in US and UK personal tax compliance
• Proven experience in reviewing and signing US and UK tax returns
• Strong knowledge of both tax regimes and how they interact
• Previous experience supervising or coaching junior staff
• Entrepreneurial and self-motivated approach to client service
• Excellent communication and interpersonal skills
• Advanced IT skills; experience using CCH ProSystem, UK tax software and Virtual Cabinet
• High level of accuracy, attention to detail, and time management
• EA and/or ATT qualified
• Experience with corporates and trusts advantageous but not essential
• Discreet and professional when handling sensitive client information

What We Offer

• Competitive salary and benefits package
• A supportive, inclusive, and professional work environment
• Exposure to prestigious clients and complex cross-border tax work
• Ongoing training and development
• Real opportunity for progression in a growing team

Join Us
If you’re looking for a firm that values its people, fosters career growth and offers exposure to truly interesting work, we’d love to hear from you.