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Upgrade to trusted expertise

Changing accountants should feel reassuring, not stressful. Imperium handles the entire transition – from requesting handover data to notifying HMRC – while you focus on running your business. Clear timelines, secure data transfer, and transparent communication ensure a seamless hand-off without service gaps.

Once on board, you receive a tailored onboarding plan, an immediate compliance review, and access to our secure portal. From day one, you experience the proactive guidance, personal service, and mature insight that set Imperium apart.

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Switching made simple

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Authorise Imperium

Sign an engagement letter and provide ID. We contact your previous adviser, request records, and notify HMRC, keeping you informed at every stage.

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Transfer your data

We migrate accounts, tax files, and cloud ledgers via encrypted channels. Our team checks integrity, reconciles balances, and flags any compliance gaps.

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Launch our services

A kick-off meeting sets goals, reporting cycles, and points of contact. Immediate tasks are prioritised so you benefit from proactive insight straight away.

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Expert fiduciary, tax and accounting services tailored to you

We handle everything from personal tax planning to complex corporate compliance, delivering clarity, efficiency, and personalised guidance.

Trustee services

Corporate services

Private client tax services

Professional practices tax services

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Celebrating 12 Years of Dedicated Tax Advisory with Milliman LLP and the Reigate Office

“For the past 12 years, Milliman LLP has worked closely with the Reigate office, who has handled our diverse tax-related needs. Being an LLP, we require detailed attention to compliance and advisory matters, and they have been instrumental in helping us navigate the complexities. They’ve ensured we’ve kept compliant on current tax laws and have kept an eye out on future changes.
In addition, the Reigate office has managed the individual returns for our partners with diligence and care, providing a personalized approach coupled with proactive advice. We are grateful for their support and guidance over the years and look forward to our continued partnership.”

Tina Pierce | Director, Milliman

Exceptional Service, Even for the Most Demanding Clients

“I wouldn’t hesitate to recommend - work undertaken is comprehensive and correct, and they always seem to maintain a smile for the most demanding of clients (like me)!”

Andrew C. Reid | Managing Director, Deutsche Bank

Trusted Advice and Proactive Support When It Matters Most

“As a client I have always valued your firm’s support and responsiveness to any questions I have in relation to tax matters. I know I can rely on getting good and timely advice and you also highlight matters that I should be aware of or consider.”

Simon Dudley | Reward Director, BP

Expert Handling of Routine and Complex Tax Matters Alike

"The Reigate office have taken care of my tax affairs for a number of years. As well as dealing with routine tax reporting, they have also helped with strategic tax planning and some complex tax issues, their advice has been invaluable to me. I can’t recommend the team more highly!”

Peter Jackson | Chartered Financial Planner, AWD Chase de Vere

Expert, Personal Service You Can Trust

“The Reigate office provide a full, expert and personal service. I would have no hesitation in recommending them.”

David Collinson | Head of Business Origination, Pension Corporation

Reliable UK Tax and Financial Advice from the Reigate Office

“I highly recommend the Reigate office for expert UK tax and financial advice. I have worked with the team for years and they have always delivered high quality advice, on time and on budget.”

Paul Morris | Managing Director, EMEA, Towers Watson

Unlock confident compliance through Imperium

Partner with us for proactive, professional, and accessible expertise.

Contact our team