Corporate Tax Assistant Manager

Overview

Are you a proactive Corporate Tax Assistant Manager looking for your next challenge? At Old Mill, we’re searching for a confident and knowledgeable tax professional to play a key role in our growing Corporate Tax Advisory team. If you're CTA-qualified (or close to completing it) and ready to take on more responsibility, we’d love to hear from you.

This is an opportunity to step up and make an impact—not just in compliance but in high-level advisory work. You’ll lead on reviewing tax computations, working on complex advisory projects, and mentoring junior team members. You’ll also have direct client exposure, helping to shape tax strategies and supporting businesses with expert guidance.

At Old Mill, we’re passionate about helping our people and our clients grow. We have five offices across the South West, a team of over 400 professionals, and a strong reputation for technical excellence. Our diverse client portfolio spans over 5,000 businesses across multiple industries, giving you the perfect platform to broaden your tax expertise.

Lead on reviewing tax computations and participate in complex advisory projects. Mentor junior team members and provide guidance to support their development. Engage in direct client exposure to shape tax strategies and offer expert guidance.

• CTA qualified (or nearing completion) with solid corporate tax experience.
• A strong mix of advisory and compliance experience, with an interest in complex tax matters.
• The ability to lead client relationships, providing clear, strategic tax advice.
• Experience managing work across multiple clients in a practice environment.
• A supportive and collaborative approach to mentoring junior team members.

• Generous Holiday Allowance – Start with a minimum of 26 days of annual leave, plus bank holidays, with the option to purchase up to 5 additional days.
• Celebrate Your Birthday – Enjoy an extra day off to celebrate.
• Flexible Working – Hybrid working model with 3 days a week in the office, allowing for a great work-life balance.
• Employee Assistance Programme – Confidential support available 24/7 for your mental, physical, and financial wellbeing.
• Ongoing Professional Development – Full funding for your professional qualifications, with continuous learning opportunities.
• Perks and Discounts – Access to exclusive employee discounts on a wide range of products and services.
• Pension Scheme – A competitive pension to help plan for your future.

Please note that the job title used internally might not match the one you see in this job advert.

Piqued your interest? We would love to talk to you more about the role. Please contact Emma Coleman, Recruitment Manager for more information and an informal chat on