Tax Dispute Resolution Assistant Manager

Forvis Mazars UK

Forvis Mazars is a leading global professional services network providing audit & assurance, tax, and advisory services. Forvis Mazars in the UK spans 14 offices across the nation and has over 3,400 professionals, with 190 partners. We have a clear purpose and a shared commitment to shape a better future.

You’ll join a collaborative and inclusive team where you’re supported to grow your skills, explore new opportunities, and contribute from day one. You’ll work with a diverse client base, develop meaningful connections, and gain experience that extends beyond your local team. Together, we grow, belong and impact.

About The Team

Our Tax Dispute Resolution team supports clients in managing and resolving complex tax disputes and enquiries. Working with individuals, businesses and other stakeholders, the team helps clients navigate interactions with HMRC, combining strong technical tax knowledge with commercial judgement and a practical approach to resolving disputes.

About The Role

As an Assistant Manager within Tax Dispute Resolution, you’ll work as part of a collaborative team advising clients across a varied portfolio of tax disputes and HMRC enquiries.

Duties will include:

• Working on a portfolio of tax dispute and enquiry matters, supporting cases from initial review through to resolution.
• Reviewing client information, identifying key technical issues and carrying out detailed tax research.
• Preparing correspondence, reports and other documentation to communicate complex tax matters clearly and effectively.
• Liaising with clients, HMRC and colleagues, building trusted relationships and providing practical, commercially focused advice.
• Supporting senior colleagues on complex or higher-risk disputes, including developing case strategies and gathering supporting evidence.
• Monitoring relevant changes in tax legislation and HMRC practice and considering their implications for clients.
• Managing deadlines, budgets and competing priorities while maintaining high standards of quality and client service.
• Supporting and coaching junior colleagues and contributing to their development.
• Working collaboratively with specialists across the wider Tax practice to provide clients with joined-up advice.

What We Are Looking For

• Relevant experience in tax, tax investigations or dispute resolution, gained within professional services, HMRC or a similar environment.
• A relevant professional qualification, or progress towards one, such as CTA, ACA, ACCA or equivalent.
• Strong technical and analytical skills, with the ability to understand complex tax issues and reach well-reasoned conclusions.
• Strong written and verbal communication skills, including the ability to explain technical matters clearly.
• Strong organisation and project-management skills, with the ability to manage multiple assignments and deadlines.
• A collaborative approach and confidence building relationships with clients and colleagues.
• Commercial awareness, curiosity and sound professional judgement.
• A commitment to quality and to delivering an excellent client experience.

Diversity, Equity & Inclusion

At Forvis Mazars diversity, equity and inclusion are central to our values. We value our people's unique backgrounds, perspectives, and experience, and know this diversity create better outcomes for our clients. We seek to attract, develop, and retain the best talent, inclusive of sex, ethnicity, disability, socio-economic background, sexual orientation, gender identity, nationality, and faith. We select candidates based on skills, knowledge, qualifications, and experience and aim to support all our team members to reach their potential. At Forvis Mazars, we promote an environment in which you cangrowyour skills,belongto a team that values your ideas, and make animpactthat matters.

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