Tax & Social Security Update: Navigating Change with Confidence
The first session, led by Megan Hand and Gill Wood of Grant Thornton, provided a timely overview of the latest developments in tax and social security for internationally mobile employees.
Key highlights included:
- HMRC’s New Guidance on National Insurance Apportionment:
The session unpacked HMRC’s updated approach to National Insurance Contributions (NICs) for internationally mobile employees, clarifying when apportionment applies and what this means for businesses. Employers are recommended to review historic NIC calculations, quantify any potential exposure, and make corrections for the previous six years if needed. The importance of robust payroll processes and technical readiness was emphasised, ensuring compliance with the new guidance and minimising risk. - Cross-Border Data Sharing and A1 Focus:
Attendees heard about the increasing effectiveness of the Electronic Exchange of Social Security Information (EESSI) and the upcoming European Social Security Pass (ESSPASS), which will streamline access to A1 certificates via an app, giving individuals digital access to their portable documents and enable real time verification systems across borders. - Payrolling of Benefits:
The implications of payrolling benefits for internationally mobile employees were discussed in line with HMRC’s latest updates regarding the mandatory payrolling of benefits from April 2027. The session underscored the need for clear internal processes and controls to ensure accuracy and compliance.



