Business Tax Manager - Timothy Wiseman : Job Details

What sets this client apart isn’t just their rapid rise or the awards lining their shelves — it’s their refusal to do business as usual. They’ve built a progressive practice where culture and purpose are as important as numbers and spreadsheets. With B Corp™ credentials and recognition as the UK’s No.1 Accountancy Firm to Work For, they prove that growth and integrity can go hand in hand.

About the Firm

This is a business that calls itself the "rebels of accountancy" — straight-talking, innovative, and people-led. They’ve created a workplace where personality and individuality are celebrated, where jargon is stripped away, and where staff and clients alike feel supported and inspired.

With a clear purpose of creating brighter futures for their clients, people, and communities, they continue to win awards for culture, wellbeing, inclusion, and employee experience.

By joining, you’ll not only gain exposure to a diverse portfolio spanning financial services, property, media, technology, and not-for-profit, but also to fast-paced emerging industries such as crypto and digital assets, international expansion work, and high-stakes regulated audits. It’s a chance to future-proof your career while being part of a firm that truly does things differently.

The Opportunity

This is an exciting opportunity for a Business Tax Manager to take ownership of a portfolio of corporate tax clients while contributing to wider advisory projects. The role combines compliance and advisory work, providing real variety and exposure to large corporates, international groups, AIM-listed entities, private equity-backed businesses, and FCA-regulated firms.

You’ll act as a key point of contact for your clients, delivering a "wow" experience that cuts through jargon and builds long-term relationships. Alongside client management, you’ll mentor junior staff, collaborate with other departments, and play a role in the continued growth and innovation of the tax team.

What makes this opportunity unique is the chance to work alongside specialists in high-growth and emerging sectors such as crypto, bitcoin, and digital assets. You’ll also gain exposure to complex cross-border projects, including supporting UK businesses expanding internationally and US corporates investing into the UK and EU. This breadth of work ensures you’ll develop a well-rounded portfolio while also building expertise in cutting-edge markets.

Key Responsibilities

• Manage a portfolio of business tax clients, reviewing returns, computations, and disclosures

• Sign out tax returns for more complex clients, working independently where appropriate

• Provide advice on corporate tax planning, restructuring, and compliance issues

• Support clients with HMRC enquiries, investigations, and dispute resolution

• Collaborate with colleagues across audit, advisory, and other service lines to deliver joined-up solutions

• Partner with teams working on regulated financial services audits, CASS compliance, and international stock exchange listings to provide clients with holistic, forward-looking advice

• Spot opportunities for additional services and new business leads

• Coach and support junior team members, contributing to their technical development

• Contribute to the improvement of processes and ways of working within the tax function

What We’re Looking For

• ACA / CTA / ACCA Qualified (or equivalent)

• Solid experience managing a client portfolio in a corporate tax-focused role

• Exposure to a wide range of clients including larger corporates, international groups, private equity-backed businesses, and FCA-regulated firms

• Strong technical knowledge and commercial awareness

• Excellent communication skills, with the ability to explain complex issues in a clear, engaging way

• A collaborative, team-focused approach with an appetite for innovation and growth

Benefits

• Competitive salary and enhanced pension scheme

• Generous holiday entitlement plus additional leave for volunteering

• Enhanced parental leave policies

• Hybrid and flexible working - with a focus on trust and autonomy

• Private medical insurance, wellbeing support, and access to award-winning health initiatives

• No dress code - "wear something" is the only rule

• Interest-free season ticket loan, cycle-to-work scheme, and social/sports clubs

• Regular social events and a culture where fun is encouraged as much as hard work