Industry: Accountancy Practice | Tax Disputes & Investigations
Location: London and the South East
Working Pattern: Hybrid – 2 days in the office, 3 days from home
Salary: Competitive + Excellent Benefits
I'm currently working with a highly regarded and growing accountancy practice that is looking to appoint a Tax Investigations Assistant Manager to join its specialist Tax Disputes team. This is an excellent opportunity to build your career within a dedicated investigations practice, working on a varied portfolio of HMRC enquiries, disclosures and dispute resolution matters.
The successful candidate will work alongside experienced specialists, advising a broad range of clients including high-net-worth individuals, owner‑managed businesses and corporate entities on complex HMRC investigations.
Role
As a Tax Investigations Assistant Manager, you will:
- Manage a portfolio of HMRC enquiries and tax dispute cases.
- Assist with COP8, COP9, voluntary disclosures and offshore matters.
- Prepare responses to HMRC information requests, appeals and technical correspondence.
- Support senior colleagues on complex investigations and litigation matters.
- Liaise directly with HMRC and clients throughout the enquiry process.
- Assist with Alternative Dispute Resolution (ADR) and Tribunal preparation where required.
- Mentor junior team members and contribute to their technical development.
About You
- Experience managing HMRC investigations or tax dispute cases within practice.
- Previous HMRC experience and/or accountancy practice experience within tax investigations is highly desirable.
- A good understanding of HMRC enquiry processes, disclosures and tax disputes.
- Strong technical, analytical and communication skills.
- ACA, ACCA and/or CTA qualification (or be working towards one).
- A proactive approach and the ability to build trusted client relationships.
What’s on Offer?
- London and South East locations, with London preferred.
- Hybrid working – 2 days in the office and 3 days from home.
- Exposure to a wide variety of complex HMRC investigations, disclosures and dispute resolution matters.
- The opportunity to work alongside highly experienced tax disputes specialists.
- A collaborative and supportive team environment.
- Clear opportunities for career progression and ongoing technical development.
- Competitive salary and comprehensive benefits package.
If you’re looking to specialise further in tax investigations and join a respected firm with an excellent reputation in the market, I’d be delighted to discuss this opportunity in confidence.
Tax Investigations Assistant Manager employer: Insite Group
Join a highly respected independent accountancy and business advisory firm that prioritises your development and offers a people-first culture. With a competitive salary, comprehensive benefits, and a collaborative environment, you'll have the opportunity to work with a diverse portfolio of clients while receiving structured training and clear progression paths. This is an ideal workplace for those seeking meaningful relationships and long-term career growth in a supportive setting.
