Our client, a boutique Tax firm are seeking an experienced Tax Senior with expertise in both UK and US individual taxation to support their private and expatriate tax clients. The successful candidate will manage a portfolio of dual-filing clients, assist with complex cross-border tax issues, and provide high-quality compliance and advisory services to globally mobile individuals. The ideal candidate will have 3 years of experience within UK/US tax and will also have experience reviewing returns (desirable). This role is offering up to 55,000 Circa, 25 days holiday, hybrid and flexible working alongside full study support UK/US Tax Senior Job OverviewPrepare and review UK self-assessment tax returns and related filings.Prepare and review US individual income tax returns (Form 1040), including FBAR (FinCEN 114) and FATCA (Form 8938).Identify and apply foreign tax credits, treaty relief, and residency/domicile positions.Manage a client portfolio including expatriates, US citizens in the UK, and non-doms.Advise clients on international tax planning, global mobility, and dual tax obligations.Liaise with HMRC and the IRS to resolve client matters and respond to queries.Mentor and review the work of junior staff members.Conduct research on complex cross-border tax issues and support business development initiatives. UK/US Tax Senior Job RequirementsATT / Enrolled Agent (US) qualified or studying toward your qualificationExperience of UK and US taxationGeneral understanding of FIG r