Grant Thornton UK
Corporate Tax Assistant Manager
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Corporate Tax Assistant Manager – Grant Thornton
Alternative approach to professional services
At Grant Thornton, we challenge the status quo. We blend strategic insight, curiosity, and genuine partnership to empower our clients – and our people. With over 5,000 employees across the UK and a global footprint in 150 markets, we’re on a mission to transform our industry. Join us, and together, we’ll redefine what tax advisory can achieve—and what trusted careers can look like.
About the Role
We’re tax technicianspuesta driven by ambitious growth and proactive solutions. Our Corporate and Multinational tax team specialises in navigating the evolving corporate tax landscape for complex businesses—ensuring compliance, managing risk, and delivering tailored, high-value guidance.
We thrive on blending technical expertise with commercial savvy, building deep client relationships rooted in trust. Our work demands global insight, bold problem-solving, and a collaborative spirit. We’re rapidly expanding and seeking an ambitious Assistant Manager to help us succeed.
Flexibility is key—we support flexible working arrangements, including reduced hours and job shares.
As a Corporate Tax Assistant Manager, you’ll:
- Advising clients on a broad spectrum of tax issues across compliance and advisory projects
- Managing tax provisions and filings, ensuring deadlines are met with excellence
- Preparing technical advisory reports and tactical tax compliance documentation
- Engaging directly with clients—solving challenges, clarifying matters, and delivering on advisory projects
- Overseeing project workflow (budgets, WIP, deadlines) and day-to-day operations
- Coaching and mentoring juniors to foster skill growth
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Requirements
Essential:
- Professional qualification (e.g., AT1, CTA, ACA, CIMA, ICAS)
- Post-qualification experience managing recurring tax client portfolios
- Exceptional UK corporation tax knowledge and a client advisory mindset
Preferred (but not mandatory):
- Background in corporate tax provisioning and advisory work
- Familiarity with hybrid mismatch rules, interest deductibility, CFC regime, Pillar 2 compliance, tax computations
- Technical problem-solving confidence in high-stakes, cross-border transactions
- Skill with Alphatax, Power BI, Microsoft Office, and related tools
Core traits we seek: ✓ Strong self-motivator, confident in driving outcomes ✓ Collaborative team player with clean communication ✓ Curiosity and learning agility to navigate challenges
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Why Choose Grant Thornton?
Culture & Values
✨ Inclusivity and diversity shape our decisions—we merit merit, not rules. ✨ Our five core values guide us: doing the right thing, actively listening, and balancing candidness with kindness. ✨ We build an environment where everyone thrives. Join us and bring your uniqueness.
Rewards Beyond Salary
🎯 Leadership development: Personalised growth pathways and coaching 🕒 Flexible bank holidays: Celebrate what matters to you 💼 Comprehensive benefits:
- Competitive pension, life assurance, private medical cover
- Extra annual leave days and health benefits (e.g., English Unlimited)
- Discounts/gym passes and financial wellness support
Our Way of Working
At Grant Thornton, we operate on trust and responsibility. Your client-c territori alignment drives our ‘how we work’ philosophy: flexibility in approach means balancing excellence with well-being.
Life isn’t just about work—prioritising what’s important to you is essential. We’re happy to explore personalised flexible working solutions.
Join us. Define your next step – smarter, together.
To explore this opportunity further, visit: jobs.gt.com
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