US Tax Associate Director in Reading

We are looking for an experienced US Business Tax Associate Director to join our specialist US/UK tax team in our Mayfair office. This senior, outward‑facing role offers real influence over client delivery and team development.

Responsibilities

• Lead complex US tax advisory assignments, including cross‑border structuring, US expansion, treaty claims, and US entrepreneurs relocating to the UK.
• Oversee the preparation and review of US business tax returns (Forms 1120, 1120‑F, 1120‑S, and 1065) and complementary non‑US entity forms (Forms 5471, 8858, and 8865), ensuring accuracy, quality and timely delivery.
• Manage enquiries and correspondence with the IRS, including involvement in more complex or technically challenging cases.
• Conduct high‑level technical research and provide clear, practical recommendations to clients.
• Support the Partner in managing a growing team of US specialists, providing day‑to‑day guidance, coaching, and technical training to junior staff.
• Delegate effectively, monitor progress, and help the team meet internal and external deadlines.
• Contribute to a high‑performance culture that reflects Sopher + Co's commitment to excellence and client care.
• Assist in managing group financial performance including WIP oversight, billing, cash collection and preparing fee quotes for existing and new work.
• Support business development activities, including attending marketing events, contributing to thought leadership, and developing your internal and external network.
• Uphold compliance with internal policies, professional standards, confidentiality requirements and health & safety obligations.

Qualifications

• Strong US tax technical expertise, supported by relevant postgraduate or professional qualifications (CPA, EA or JD).
• Significant experience in US business taxation – ideally around 10 years – with the credibility to advise inbound and outbound clients and some experience advising within the UK.
• Solid grounding in cross‑border US tax issues, including Subpart F, GILTI, treaty relief and FIRPTA.
• Excellent communication skills, with the ability to build trusted relationships with clients, colleagues and external advisers.
• Strong leadership capability, ideally with experience supervising or mentoring staff.
• Confident time‑management and organisational skills, with the ability to juggle multiple deadlines.
• Competence with accounting and tax software; experience with CCH and Virtual Cabinet is highly advantageous.
• High levels of discretion when working with sensitive client information.
• Can work independently and autonomously while contributing to a collaborative team environment.

Benefits

• We offer a competitive salary and a comprehensive benefits package, designed to support your health, wellbeing, financial security and career development.
• Private Medical Insurance
• Life assurance (Death in Service)
• Group Income Protection (GIP)
• Employee Assistance Programme and 24/7 Digital GP access
• YuLife wellbeing platform
• Reward Gateway (employee discounts and cashback)
• Generous holiday entitlement, with the option to buy and sell leave
• Enhanced family‑friendly policies
• Ongoing training and development opportunities
• Fully funded training packages with a generous exam reward structure
• Recognition and long‑service milestones
• Cycle to Work scheme
• Discounted wills and LPAs
• Social committee and regular social events
• Fresh fruit in the office

We are committed to equality of opportunity in employment and expect all employees to act in accordance with this principle, recognising its importance to the success of our business.