Tax Assistant Manager

About Forvis Mazars

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
.

As an Assistant Manager, you will support the management and delivery of a wide range of UK employment tax advisory and compliance projects. You will have direct exposure to clients, responsibility for reviewing work from junior colleagues, and the opportunity to build specialist expertise across areas such as IR35, benefits and expenses, reward strategy/cost reduction, PAYE/NIC governance, Construction Industry Scheme, NMW and HMRC enquiries.

You will work closely with senior team members and Partners and be part of a high‑performing national employment tax and wider Global Employer Solutions community.

• Support and deliver advisory projects covering PAYE/NIC, benefits, expenses, termination payments, cost reduction/reward strategy, employment status (IR35, Umbrella etc), CIS, NMW and payroll governance.
• Prepare and review advisory notes, calculations, technical reports and HMRC correspondence.
• Assist with PSAs, P11D reviews, employer compliance checks and year‑end processes.
• Join client meetings and calls, contributing to discussions and follow‑up actions.
• Review work prepared by junior colleagues, providing coaching and feedback.
• Support business development activities through research, drafting proposals and preparing marketing material.
• Contribute to technical training, knowledge sharing and process improvements within the team.

• 3 years+ of overall UK employment tax experience (practice or in‑house).
• Strong understanding of UK PAYE/NIC rules, expenses and benefits, IR35/worker status, and HMRC processes.
• ATT/CTA qualified and/or with employment tax experience.
• Strong written communication skills with the ability to prepare clear, accurate advisory work.
• Attention to detail and proactive approach to problem solving.
• Interest in developing technical depth and taking on client‑facing responsibility.
• Team player who enjoys collaborating with colleagues across levels.

Ready to grow, belong, and impact? Apply now and join us at Forvis Mazars!

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.