Interim Head of Tax – Financial Services

Consult; Milton Keynes; On-site; GBP 90,000 - 130,000; Part time

Benefits offered by this job

Project flexibility

Frequent networking events

Community support for contractors

Job summary

Grant Thornton's Tax team is seeking an experienced interim Head of Tax (Financial Services) to lead tax operations for client engagements across the UK.

You will oversee compliance, optimise tax positions, mentor the team, and shape strategic tax advice for senior stakeholders. This is a flexible contracting opportunity with strong support from our Agile Talent Community.

Qualifications

• ACA/ACCA/CTA qualification or equivalent is required.
• Experience leading tax teams in financial services.
• Strong knowledge of UK tax laws and HMRC engagement.
• Ability to mentor and develop junior staff.
• Experience preparing and reviewing tax returns.
• Excellent stakeholder management.

Responsibilities

• Oversee all tax-related activities and ensure UK compliance.
• Develop and implement tax strategies to optimise tax position.
• Manage relationships with HMRC and external advisors.
• Lead and mentor the tax team, providing guidance and support.
• Prepare and review tax returns, ensuring accuracy and timeliness.
• Monitor changes in tax legislation and assess their impact on the business.
• Provide strategic tax advice to senior management and other stakeholders.

Skills

Tax leadership

UK tax compliance

Tax strategy

HMRC engagement

Mentoring

Tax returns

Stakeholder management

Education

ACA/ACCA/CTA qualified or equivalent

Job description

Who We Are

At Grant Thornton we’re building something bold. We’re doing things differently - looking to the future, driving ambitious growth and pioneering positive change in our industry. Providing audit, tax and advisory services, we empower clients through strategic insight, curiosity, and genuine partnership. And we empower our people with real opportunity. Our journey from great to exceptional is well underway. With significant investment behind us and a clear strategy for growth, there’s real momentum.

Our Agile Talent Community (ATC) brings together experienced contract professionals who want choice without losing connection. You work where you add the most value, alongside teams who treat you as a partner rather than a placeholder.

Assignment Description

Joining us in Tax

The tax team at Grant Thornton offers a wide range of services, including employment tax, reward advisory, indirect tax, and employee benefits consultancy. They help clients manage tax risks, optimize employee rewards, and ensure compliance with complex tax legislation, while also providing strategic advice on cost savings and employee engagement. Their expertise covers businesses of all sizes and sectors, delivering tailored solutions to meet evolving tax and regulatory challenges.

If you’re an experienced interim Head of Tax (Financial Services) with experience in the financial services sector, you will have the freedom to work on projects that you choose, whether full or part-time to support our clients and internal teams on short to medium-term assignments.

Skills We Are Looking For

• Oversee all tax-related activities, ensuring compliance with UK tax laws and regulations.
• Develop and implement tax strategies to optimize the company’s tax position.
• Manage relationships with HMRC and external tax advisors.
• Lead and mentor the tax team, providing guidance and support.
• Prepare and review tax returns, ensuring accuracy and timeliness.
• Monitor changes in tax legislation and assess their impact on the business.
• Provide strategic tax advice to senior management and other stakeholders.
• ACA/ACCA/CTA qualified or equivalent.

Why Consultants choose the ATC

• Work that moves you forward

When a project fits your skills, we’ll get in touch, but you choose whether it’s right for you. That means working on engagements that genuinely build your portfolio and expand your expertise.

• The freedom of contracting without the hidden admin

You’re not left to navigate the freelance world alone. Our Agile Talent team helps you understand freelance regulation and connects you with people who broaden your thinking through our teams and clients.

• Community you can actually feel

Connection shouldn’t disappear just because you’re contracting. From market insights to wellbeing sessions to networking events, you’ll be part of a community designed to make the independent path less isolated and more impactful.

Our culture and values

We have a culture where talented people thrive – where high performance is not just expected but enabled. It’s a culture built on clarity, curiosity, and care. One that challenges us to aim higher, where we’re encouraged to make the most of an abundance of resources to fuel our own development, and where we support each other to grow, learn, and succeed.

Our open and accessible culture means you’ll interact with leaders who are interested in you and everything you bring to our firm. The things that set you apart, we value them. That’s why we give you the freedom to bring your whole self to work and pursue your passions inside and outside of work.