Interim Group Financial Controller

The client requires an Interim Group Financial Controller to provide cover during an absence and to lead the group through a critical year-end period, with demanding statutory deadlines for both entity and Group audits.

The successful candidate will own the year-end close, consolidation and acquisition accounting, and will be the primary finance lead for the external auditors through to sign-off. This is a high-impact assignment for a technically strong finance leader who can take ownership from day one.

About G MASS

Our client is a large, investor-backed insurance group with a diverse portfolio spanning broking and underwriting distribution across the UK and international markets. The group has a complex, multi-entity, multi-currency structure and continues to grow through a busy programme of acquisitions, with several further transactions in the pipeline.

Responsibilities

• Lead delivery of the Group’s year-end close, consolidation and statutory reporting process.
• Oversee consolidation across a large, acquisitive, multi-currency group structure.
• Take ownership of acquisition accounting for a number of recently completed acquisitions, including purchase price allocations, fair value adjustments, goodwill calculations and deferred consideration.
• Act as the primary finance lead for the external audit, coordinating information and responses to meet entity and Group audit deadlines.
• Review and challenge the preparation of statutory accounts to ensure technical accuracy and consistency across the Group.
• Provide technical accounting guidance on FRS 102 and other complex accounting matters.
• Lead, mentor and coordinate the Financial Control team through year-end and audit.
• Partner closely with the Group Finance Director and wider leadership team on finance transformation and M&A activity.

Requirements

• ACA qualified with 10+ years' post-qualification experience; Big 4 background preferred.
• Significant experience within a large, complex, multi-entity group environment.
• Extensive hands-on experience of group consolidations involving 50+ entities.
• Strong technical accounting knowledge, including UK GAAP / FRS 102 and acquisition accounting.
• Demonstrable experience leading year-end and statutory audit processes under demanding reporting timetables.
• Proven experience managing and developing financial control or group reporting teams.
• Track record of integrating acquisitions and delivering purchase accounting in acquisitive businesses.
• Ability to operate autonomously with minimal supervision and hit the ground running.

Preferred

• Previous interim assignments within private equity-backed businesses.
• Experience of high-volume M&A environments.
• Previous Head of Group Reporting or Group Financial Controller experience.
• Experience managing year-end processes within groups of 75+ entities.
• Insurance intermediary, specialty insurance or wider financial services experience.
• Microsoft Business Central and Jet Reporting experience.

Pay

• G MASS · London, United Kingdom (Hybrid) · Contract · Posted 2026-10-27
• Salary: Up to GBP 115,000
• 6-month initial contract
• Salary: up to £115k

Benefits

• Immediate start