Catalyst Labs
Tax Senior Associate / Manager - International & Private Client
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About the job Tax Senior Associate / Manager - International & Private Client
About Us: Catalyst Labs is a leading agency specializing in direct placements, contingent placements, outsourcing and EOR. We stand out as an agency that is deeply embedded in our clients recruitment operations. We work directly with hiring manager who understand the value of strategic tax leadershipand we take pride in facilitating conversations that are aligned with your expertise and long-term goals.
Our Client
A well-established mid-tier professional services firm in London, rooted in over 75 years of accountancy history and recently certified as a B Corp. The firm provides a broad suite of servicesspanning Audit & Assurance, Corporate Finance, Business Advisory, HR, and Wealth Managementalongside deep expertise in international and private client tax advice
Within the Private Client and International Tax team, the firm advises high-net-worth and ultra-high-net-worth individuals, families, and their family offices on complex UK and cross-border tax issues, including residency, domicile, offshore structures, trusts, and property structuring. Multilingual and globally connected, the team forms part of a respected international alliance, ensuring coordinated, cross-jurisdictional advice .
Location: London, UK (you should be authorized to work in the UK)
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Work type: Full time, Hybrid (3 days in office, 2 days work from home)
Responsibilities
Provide strategic tax advice to international private clients, including UK tax planning related to residency, domicile, trusts, and offshore assets. Lead client engagements and manage client communications with a high degree of autonomy. Prepare and/or review UK self-assessment tax returns involving worldwide income, foreign tax credits, and complex disclosures. Interpret and apply double taxation agreements in client filings and planning. Advise on and support HMRC enquiries, settlements, and disclosures (e.g., Worldwide Disclosure Facility). Prepare or review returns related to CGT (including non-resident CGT), ATED, ROE registrations and updates, non-resident corporate landlords, and IHT (including 10-year and exit charges). Deliver tax structuring and de-enveloping advice on UK property ownership for both investment and trading purposes. Draft written advisory reports for high-net-worth individuals and offshore trust/corporate structures. Support international succession and estate planning, including trust-related tax exposure. Stay updated and advise clients on legislative changes including the transition from the remittance basis to the post-April 2025 UK regime (4-year FIG, TRF, IHT long-term residence). Collaborate with family offices, trustees, legal counsel, and overseas advisors to deliver integrated advice. Contribute to the firm’s knowledge base through insights and publications.
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Requirements
Qualifications: ATT (minimum), part-qualified CTA/ACA for senior associate level, or fully qualified for assistant manager and above. Equivalent qualifications also considered. Experience: Minimum 3-4 years of UK personal tax experience, ideally in a private client team or firm advising international clients. Deep understanding of UK non-dom tax rules, the remittance basis, mixed funds, and cross-border personal tax. Confident working with offshore trusts, structures, and clients with dual residency or tax exposure.
Perks & Benefits
Generous annual leave with additional paid day off for your birthday. Comprehensive private healthcare. Surplus of Internal mentoring and career development support with Partner level interaction although the firm is considerable in size. Firm-wide wellness and lifestyle benefits. Clear performance progression pathways.
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