Corporate Tax Executive / Assistant Manager

Grant Thornton International Ltd; Belfast City District; On-site; GBP 45,000 - 65,000; Full time

Job summary

Grant Thornton Advisors (NI) Tax Team in Belfast is seeking a Corporate Tax Executive/Assistant Manager to join our growing team. You will work closely with colleagues to deliver high quality corporate tax compliance services to owner‑managed businesses, large groups and internationally active clients.

This role offers excellent opportunities for ambitious candidates to progress within the firm, with a competitive remuneration package and ongoing career development.

Qualifications

• ACA (or CTA) qualified.
• Experience in corporate tax in a practice environment.
• Strong technical tax knowledge for compliance work.
• Good organisational and project management skills.
• Ability to supervise and review junior team members.
• Strong interpersonal and client relationship skills.

Responsibilities

• Manage day-to-day execution of a corporation tax compliance portfolio, meeting deadlines and quality standards.
• Coordinate workflow across engagements and monitor budgets and timelines.
• Review work by junior team members prior to Manager review.
• Identify issues and elevate complex or higher-risk matters.
• Act as day-to-day client contact and provide updates.
• Build relationships with client contacts with oversight from the Manager.
• Ensure client expectations are understood and met in delivery of work.
• Apply technical knowledge to deliver high-quality compliance outputs.
• Undertake technical research and propose solutions for review.
• Maintain up-to-date knowledge of tax legislation and share knowledge within the team.
• Ensure all work complies with firm procedures and engagement requirements.
• Identify potential risk issues and escalate appropriately.
• Support engagement processes from initiation through invoicing.
• Provide guidance and on-the-job coaching to junior team members.
• Perform initial review and support development through feedback.
• Support efficient delivery by managing time and budgets.
• Contribute to achieving team utilisation and delivery targets.

Skills

Strong technical tax knowledge

Organisational skills

Project management

Interpersonal communication

Education

ACA or CTA qualification

Job description

Job Description

The Grant Thornton Advisors (NI) Tax Team is an ambitious and growing team of over 80 specialists, bringing together deep industry, sector and technical expertise. Our Corporation Tax Compliance client base continues to grow significantly, with increasing demand from owner‑managed businesses, large groups and internationally active clients.

We are therefore seeking a Corporate Tax Executive/Assistant Manager to join our growing team. As an Executive/Assistant Manager, you will work closely with other members of our Compliance team to deliver high quality services to our clients while developing your own skills and technical capability.

Excellent opportunities exist for ambitious and driven candidates to progress within the firm. The position attracts a competitive remuneration package and ongoing career development.

Responsibilities

• Manage the day‑to‑day execution of a corporation tax compliance portfolio, ensuring deadlines and quality standards are met.
• Coordinate workflow across engagements and monitor progress against budgets and timelines.
• Review work prepared by junior team members for accuracy and completeness prior to Manager review.
• Identify issues arising during delivery and elevate complex or higher‑risk matters.
• Act as a day‑to‑day contact for clients, responding to queries and providing updates.
• Build effective working relationships with client contacts, with oversight from the Manager.
• Ensure client expectations are understood and met in delivery of work.
• Apply strong technical knowledge to deliver high‑quality compliance outputs.
• Undertake technical research and propose solutions for review.
• Maintain up‑to‑date knowledge of tax legislation and share knowledge within the team.
• Ensure all work complies with firm procedures and engagement requirements.
• Identify potential risk issues and elevate appropriately.
• Support the accurate completion of engagement processes from initiation through to invoicing.
• Provide guidance and on‑the‑job coaching to junior team members.
• Perform initial review of work and support development through informal feedback.
• Support efficient delivery by managing time and working within agreed budgets.
• Contribute to achieving team utilisation and delivery targets.

Qualifications

• ACA (or equivalent) or CTA qualified.
• Relevant experience working in a corporate tax department within a practice environment.
• Strong technical tax knowledge with the ability to apply it effectively to compliance work.
• Good organisational and project management skills, with the ability to manage multiple deadlines.
• Ability to supervise and review the work of junior team members, providing clear and constructive feedback.
• Capable of working on own initiative, with appropriate escalation of complex or higher‑risk matters.
• Strong interpersonal and communication skills, with the ability to build effective working relationships with colleagues and clients.

Job Info

• Job Identification 115172
• Job Category –
• Posting Date 06/17/2026, 04:14 PM
• Degree Level No Formal Education
• Job Schedule Full time
• Locations 12‑15 Donegall Square West, Belfast, BT1 1BG, GB