Deals Advisory Tax Assistant Manager

  • Morgan McKinley
  • Jan 30, 2026
Full time Accounting

Job Description

A leading Big 4 professional services firm is expanding its fastest-growing Deal Advisory Tax team and is looking for experienced M&A tax professionals at Assistant Manager grade. This is a high-profile role offering broad exposure to complex transactions and excellent career progression.

The Deal Advisory Tax team is recognised for delivering market-leading tax advice to corporate clients and financial investors across a wide range of sectors. The team works collaboratively nationwide and with international colleagues, advising on transactions from £10m to over £10bn. You'll be part of an ambitious, dynamic and supportive environment where your contribution will have real impact.

What you'll be doing

  • Work closely with Partners and Directors on complex, high-value transactions, providing exceptional tax advice.
  • Support business development by contributing to proposals, client pitches and relationship building.
  • Develop and maintain strong relationships with clients, legal advisers, and internal stakeholders throughout the deal process.
  • Prepare or oversee detailed technical advice on UK and international tax issues and contribute to thought leadership.
  • Analyse tax documentation and data, identifying key issues and communicating their commercial implications to clients.
  • Collaborate with UK and overseas tax specialists to integrate technical input and challenge assumptions where needed.
  • Coach, develop and mentor junior colleagues while fostering a collaborative, high-performance team culture.
  • Stay up to date with key UK and OECD tax developments and understand tax considerations within financial models.

About you

  • Qualified CTA, ACA, CA or equivalent.
  • Strong UK corporate tax knowledge with a genuine interest in transactional work.
  • Excellent interpersonal, written and verbal communication skills.
  • Commercial mindset with strong analytical and problem-solving skills.
  • Proven project management capability, able to manage competing priorities and drive work forward.
  • Pro-active, client-focused and comfortable building relationships with senior stakeholders.
  • Ability to coach, develop and lead colleagues, contributing to a positive team environment.
  • Proficient with Microsoft Excel and PowerPoint.

Why this role matters

This is an exciting opportunity to join one of the fastest-growing Deal Advisory Tax teams in the UK, working on high-impact transactions and building strong industry networks. You'll have real visibility with senior leadership, broad client exposure, and a clear pathway for career progression.

Multiple UK locations including London, Birmingham, Bristol, Manchester, Southampton and more