Expert international tax
advice for high net worth
individuals and globally
mobile clients
DISCREET. STRATEGIC. PERSONAL
Helping clients navigate the complexities of international tax with clarity and confidence - protecting wealth, optimising structures and supporting long-term objectives.
DISCUSS YOUR SITUATION
SPECIALIST ADVICE FOR INDIVIDUALS & FAMILIES

Clarity in a
complex world

International tax is complex and fast‑moving. I provide clear, tailored advice shaped around your personal circumstances, family arrangements, and future plans - so you can make informed decisions with confidence.

From cross‑border moves and international investments to historic tax issues, I help individuals and families understand their position and navigate the rules with clarity.
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INDIVIDUALS AND FAMILIES
SPECIALIST ADVICE FOR EMPLOYERS

From advice
to implementation

International assignments often require more than identifying the tax position. Employers may need to adapt payroll arrangements, establish appropriate PAYE treatment, obtain social-security certificates and coordinate reporting across jurisdictions.

Nicholls Tax Advisory can work alongside your existing finance, HR, payroll and professional advisers to help put the appropriate arrangements in place and ensure they continue to operate as intended.
EMPLOYERS

Trusted Advice. Lasting Relationships.

International tax is rarely straightforward. Relocating, building wealth across borders, planning for the next generation or managing interests in multiple jurisdictions — each decision can carry long‑term tax implications.
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At Nicholls Tax Advisory, trusted advice begins with understanding the people behind the numbers. I invest time in getting to know your ambitions, family circumstances and long‑term objectives, so guidance can evolve with your life rather than simply react to individual events.
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Working alongside your existing professional advisers, I deliver clear, commercially minded solutions that are practical, proportionate and tailored to your circumstances. My role is to bring clarity to complexity - helping you make confident decisions today while planning effectively for tomorrow.
ABOUT

A personal approach. Exceptional expertise.

With extensive experience in international tax and a deep understanding of the challenges faced by globally mobile individuals, I provide pragmatic, commercially focused advice delivered with the highest standards of professionalism and discretion.
Sadie Nicholls
DIRECTOR

I have experience of Sadie's dedicated work ethic, huge international experience and ability to untangle complex issues, over many years. I highly recommend her, Everyone needs Sadie!

PRIVATE CLIENT
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