CESI@noon on EU Social Security Coordination in Practice: The revised Regulation 883/2004

CESI@NOON

🕛 Date and time: June 04 2026, 12:00–14:00
📍 Venue: CESI (Avenue des Arts 19AD, Brussels) and online (Zoom)
🔗 Registration link: https://us02web.zoom.us/meeting/register/HgHMcLjsQoOGLGOxLk-iXA
🌐 Language: EN

‍

Maria, a software developer from Spain, starts a hybrid assignment with a German public administration project. She lives in Belgium, works partly from home, and continues providing consultancy services to clients in France. What seems like a straightforward European career path quickly becomes a legal puzzle. Which Member State is competent for her social security coverage? Which country covers her health insurance? How are her pension contributions calculated? Who decides her entitlement to family benefits or unemployment support?

These questions sit at the heart of Regulation (EC) No 883/2004, the EU framework that coordinates—rather than harmonizes—national social security systems to ensure that mobility does not result in loss of rights. For more than a decade, however, the Regulation has been under pressure to adapt to increasingly complex and fragmented forms of work.

The rise of telework, platform-based employment, and multi-state professional activity has significantly blurred the traditional link between “place of work” and “applicable social security legislation”. In response, the Administrative Commission introduced a voluntary Article 16 Framework Agreement in 2023 to address cross-border telework situations. While useful in practice, its optional nature has led to uneven application across Member States, leaving workers and employers in legal uncertainty.

The EU institutions reached a provisional political agreement on 22 April 2026 on a revision of Regulation 883/2004 in order to modernize it. The reform seeks to clarify coordination rules, improve legal certainty, and strengthen enforcement in cross-border situations, while preserving the core principles of free movement and equal treatment. Key areas under revision include the coordination of unemployment benefits, family benefits, long-term care, and the determination of applicable legislation in multi-state and posting scenarios.

How will the revised Regulation address increasingly hybrid and multi-state work patterns in practice? Will the new rules reduce administrative uncertainty for workers and institutions, or add further complexity during transition? How will enforcement mechanisms ensure uniform application across Member States? And crucially, will the reform strengthen—not dilute—the portability of social security rights for mobile workers?

Join us: This CESI@noon session will:

· Provide a concise overview of the principles and evolution of EU social security coordination under Regulation 883/2004.

· Revisit the 2016 European Commission proposal to review the Regulation 883/2004.

· Discuss the interaction between the Regulation and the 2023 Article 16 Framework Agreement in managing cross-border telework and multi-state employment.

· Examine the implications of the April 2026 provisional agreement, with a focus on practical changes for mobile and hybrid workers.

· Explore real-world administrative challenges, including applicable legislation, benefit access, and enforcement gaps.

Participants will exchange perspectives on how EU coordination rules function in practice and consider how the revised framework can better protect workers’ rights while ensuring administrable, predictable systems in an increasingly digital and mobile labour market.

‍

PROVISIONAL AGENDA:

12:00–12:05 Welcome and introduction Klaus Heeger, Secretary General, CESI

12:05–12:20 Setting the scene: Regulation 883/2004 in transition

Prof. Dr. Eleni De Becker, Assistant Professor of Social Security Law at Vrije Universiteit Brussel and a guest lecturer at KU Leuven in European social security Law. Overview of core coordination principles and the legal challenges of multi-state, telework and hybrid employment following in social security coordination

12:25–13:15 Panel discussion: The provisional agreement and the way forward

• The 2016 Commission proposal to revise Regulation (EC) No. 883/2004.
• The 2023 Article 16 Framework Agreement: Continued relevance or transitional tool?
• The 22 April 2026 Agreement: What changes in practice for workers and social security administrations?
• Determining applicable legislation in hybrid and multi-state work: where are the gaps?
• Administrative challenges in practice: coverage gaps, delays, and the worker experience.
• The CESI perspective: ensuring rights-based coordination in practice.

Panellist:

• European Parliament: MEP Gabriele Bischoff (S&D), Rapporteur Revision of Regulation (EC) No. 883/2004
• European Commission (DG EMPL): Jörg Tagger, Head of Unit Social Security Coordination
• Stakeholders: Anne Claire Le Bodic, Permanent Representative REIF, French Social Protection (REIF) Ilka Wölfle, Director European Representation of the German Social Insurance (DSV)
• Trade Unions: CESI affiliate representative with experience in Social Security

13:15–13:45 Q&A with the audience (in-person and online)

13:45–14:00 Closing remarks and next steps Klaus Heeger, Secretary General, CESI