Interim Project Accountant (VAT)

The Role

We are supporting a well-known national not-for-profit organisation undergoing a significant VAT compliance and transformation programme following a change in the VAT treatment of a core revenue-generating service.

This is a business-critical interim assignment focused on implementing new VAT processes, managing a substantial retrospective VAT exercise, and supporting customer communications during a period of significant change.

Working closely with the finance team, you will help deliver a large-scale VAT remediation project requiring the review and correction of historic invoicing activity, while also ensuring the organisation successfully transitions to a new VAT operating model moving forward.

This is a highly hands-on role requiring someone comfortable working across finance operations, stakeholder management, compliance, and project delivery.

Key Responsibilities

• Review large volumes of historic transactions and identify invoices requiring VAT corrections.
• Support the reissue of VAT invoices and ensure compliance with HMRC requirements.
• Work with finance teams to validate invoice accuracy, accounting treatment, and supporting documentation.
• Manage communications with key customers and stakeholders regarding VAT changes and invoice queries.
• Support credit control activities to maximise cash collection and minimise payment delays.
• Produce guidance and training materials to support organisational understanding of new VAT requirements.
• Respond to internal and external VAT queries and maintain FAQ documentation.
• Assist with data analysis, reconciliations, and reporting using Excel.
• Help establish robust processes and controls for future VAT invoicing and compliance.
• Work closely with operational teams to ensure consistent application of VAT treatment across the organisation.