US/UK Cross-Border Tax Manager

US/UK Cross-Border Tax Manager – Big 4 Firm – London

Are you an experienced tax professional seeking to lead a market-leading US/UK cross-border tax team and oversee complex dual-filing portfolios? If you are looking to take ownership of high-value compliance and advisory engagements, review dual-status returns, and mentor junior staff within an industry-renowned practice, this Manager opportunity offers an exceptional platform to advance your leadership career.

About the Firm

This Big 4 firm is often considered to be the most people-centric of the UK's Big 4 firms, combining a highly collaborative culture with over 45 years of sector leadership in specialist cross-border tax advice. The practice provides bespoke dual US and UK compliance and strategic advisory services to private clients and global entities, offering its team leaders extensive career development, flexible working arrangements, and continuous professional growth.

As a US/UK Cross-Border Tax Manager you will:

Manage a complex portfolio of dual-handling US/UK private clients and entities, overseeing end-to-end compliance delivery, portfolio billing, and financial performance targets.
Review complex US and UK personal and entity tax returns with technical rigour, signing off completed filings and managing risk protocols.
Identify cross-disciplinary advisory opportunities—including estate tax, gift tax, IHT, and corporate tax—coordinating seamlessly with specialist teams across the firm.
Supervise, coach, and mentor junior team members, taking direct responsibility for their technical development and assignment management.

As the successful candidate you will:

Hold the ATT qualification alongside a US tax credential (Enrolled Agent or CPA); CTA is desirable.
Bring at least five years of professional practice experience operating at a similar level in dual US/UK tax compliance and advisory.
Demonstrate proven technical expertise in reviewing and signing out complex US and UK tax returns.
Exhibit strong people management capabilities, including experience leading portfolio billing, staff assignments, and team coaching.

What You’ll Receive

2 days in office hybrid working pattern
25 days holiday
Up to 6% pension employer contribution
Private medical care
Flexible core working hours (10am–4pm)
Dress for your day policy

At Austin Rose, we specialise in Public Practice recruitment and use our market insight to support professionals in securing roles aligned with their long-term ambitions.

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