Tax - Disputes and Resolutions - Assistant Manager

MAZARS UK; City Of London; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

A global professional services network is seeking a Tax Disputes and Resolutions Assistant Manager in London. The successful candidate will manage HMRC investigations and support negotiation settlements, requiring at least 5 years of experience in tax enquiries. This role offers competitive pay, hybrid working options, and a commitment to employee growth and well-being.

Benefits

Competitive salary

Annual performance-based bonus

Hybrid working options

Comprehensive benefits package

Career progression opportunities

Wellbeing support

Qualifications

• Qualified tax professional with at least 5 years’ experience in tax enquiries and investigations.
• Ability to write detailed reports and handle computations is preferred.
• Good knowledge of Microsoft Office, especially Word and Excel.

Responsibilities

• Manage HMRC investigations and disclosures.
• Prepare investigation reports for submission to HMRC.
• Support senior staff in settlement negotiations.
• Build a network of professional contacts to win new work opportunities.

Skills

Report writing

Tax computational experience

Knowledge of Microsoft Office

Experience with tax enquiries

Education

ACA/ATT/CTA qualified (or HMRC / overseas equivalent)

Job description

Tax - Disputes and Resolutions - Assistant Manager (5182)

Tax Disputes and Resolutions Assistant Manager

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 .

Are you looking to make an impact in Tax Investigations? Are you looking to grow our business as if it was your own? And are you looking for open, engaged and collaborative teams? Then apply to the role today!

What You’ll Do:

• Working with the Tax Dispute Resolution (TDR) team of experienced HMRC dispute resolution specialists to manage HMRC investigations under COP 9, COP 8, Cross Tax enquiries, NMW enquiries and various technical disputes.

• Work with Partners, Directors and the wider tax team to ensure the smooth running of HMRC investigations or disclosures.
• Take a proactive role in the preparation of investigation and disclosure reports, including all computational aspects of the report, for submission to HMRC FIS, working directly to senior team members.
• In certain circumstances you will deal directly with clients, contacts and other parties to ensure work is done and produced according to the desired timescales, including attendance at meetings with HMRC in person or online.
• Support senior staff in the negotiation of settlements with HMRC.
• Assist with the billing and collection in respect of each client in their portfolio.

• Draft and have input into media posts and blogs.

• Commence the process of building a network of professional and business contacts, with a view towards winning new work opportunities for the team..

• Act as an ambassador of the firm, participate in marketing events, keep abreast of the wide range of services the firm offers and suggest innovative products and services.

What You’ll Bring:

• ACA/ATT/CTA qualified (or HMRC / overseas equivalent), or relevant work experience.
• Report writing and tax computational experience is preferred.
• Knowledge of Microsoft Office, especially Word and Excel is preferred.
• At least 5 years’ experience of tax enquiries, investigations and voluntary disclosures to HMRC.

What We Offer:

Forvis Mazars is a leading global professional services network delivering quality across audit, tax, advisory and consulting. We're united by a shared purpose and a strong sense of belonging, with a culture rooted in inclusion, responsibility, and collaboration. With us, you'll be empowered to shape your career, contribute your ideas, and make a difference from day one.

We embrace individuality and encourage everyone to bring their whole selves to work. Whether you're looking to stretch your potential, build meaningful relationships or be part of a diverse, forward-thinking team, this is a place where you can thrive.

Salaries & Benefits:

At Forvis Mazars, we pride ourselves on being a fair and competitive employer, we offer a competitive salary which are based on experience and benchmarking. We have an annual performance-based bonus, and regular salary reviews to ensure you are rewarded for your efforts.

You’ll enjoy hybrid working options, allowing you to maintain a healthy work-life balance, along with clear career progression opportunities that will support your growth. Our comprehensive benefits package includes wellbeing support because we believe in taking care of our people. Does this sound like the kind of place where you can thrive?

Location:

London Office – Located in 30 Old Bailey, London, EC4M 7AU. Moments from City Thameslink, St Paul’s and Farringdon stations. Ideally positioned in the heart of the City of London, near major landmarks and law courts.

Ready to Grow, Belong, and Impact ? Apply now and join us at Forvis Mazars!