Important Updates
Important Updates
February 3, 2026 | United StatesUnited States: Federal District Court Postpones Termination of Temporary Protected Status for Haiti
February 3, 2026 | OmanOman: Mandatory Company Registration on Tawteen Platform
February 3, 2026 | ThailandThailand: Mobile Visa Services for Selected BOI-Promoted Companies Launched
February 3, 2026 | United KingdomUnited Kingdom: Full ETA Enforcement Requires Proof of Exemption
February 3, 2026 | United StatesUnited States: DHS Receives Funding Through February 13, Rest of Federal Government Funded Through September 30
February 3, 2026 | United StatesUnited States: Federal District Court Postpones Termination of Temporary Protected Status for Haiti
February 3, 2026 | OmanOman: Mandatory Company Registration on Tawteen Platform
February 3, 2026 | ThailandThailand: Mobile Visa Services for Selected BOI-Promoted Companies Launched
February 3, 2026 | United KingdomUnited Kingdom: Full ETA Enforcement Requires Proof of Exemption
February 3, 2026 | United StatesUnited States: DHS Receives Funding Through February 13, Rest of Federal Government Funded Through September 30
February 3, 2026 | United StatesUnited States: Federal District Court Postpones Termination of Temporary Protected Status for Haiti
Subscribe
Fragomen.com home
Select Language
  • English
  • French
  • French - Canadian
  • German

Select Language

  • English
  • French
  • French - Canadian
  • German
ContactCareersMediaClient Portal
Search Fragomen.com
  • Our Services
    For EmployersFor IndividualsBy IndustryCase Studies
  • Our Tech & Innovation
  • Our People
  • Our Insights
    Worldwide Immigration Trends ReportsMagellan SeriesImmigration AlertsEventsMedia MentionsFragomen NewsBlogsPodcasts & Videos
  • Spotlights
    Navigating Immigration Under the Second Trump AdministrationFragomen Consulting EuropeImmigration Matters: Your U.S. Compliance RoadmapCenter for Strategy and Applied InsightsVietnamese ImmigrationView More
  • About Us
    About FragomenOfficesResponsible Business PracticesFirm GovernanceRecognition

Our Services

  • For Employers
  • For Individuals
  • By Industry
  • Case Studies

Our Tech & Innovation

  • Our Approach

Our People

  • Overview / Directory

Our Insights

  • Worldwide Immigration Trends Reports
  • Magellan Series
  • Immigration Alerts
  • Events
  • Media Mentions
  • Fragomen News
  • Blogs
  • Podcasts & Videos

Spotlights

  • Navigating Immigration Under the Second Trump Administration
  • Fragomen Consulting Europe
  • Immigration Matters: Your U.S. Compliance Roadmap
  • Center for Strategy and Applied Insights
  • Vietnamese Immigration
  • View More

About Us

  • About Fragomen
  • Offices
  • Responsible Business Practices
  • Firm Governance
  • Recognition
Select Language
  • English
  • French
  • French - Canadian
  • German

Select Language

  • English
  • French
  • French - Canadian
  • German
ContactCareersMediaClient Portal
  • Insights

EU Court of Justice opens the door for host country to disregard Certificate of Coverage for Posted Workers

February 6, 2018

Countries / Territories

  • 🌐

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Within the field of global mobility of personnel, social security costs are as significant as immigration compliance. Due to the changing European legal landscape for immigration as well as for the posting of workers, social security has grown in importance as companies strategically plan for personnel assignments.

The application for a certificate of social security coverage (commonly now known as a CoC, or an A1 certificate amongst all the countries that apply the EU Regulations on social security) has become fundamental not only for showing compliance with social security obligations for the period of a temporary secondment, but also for securing work permits and for guaranteeing compliance with posted worker notification requirements from Day 1. New categories of work permits offering the possibility to work in various EU countries at the same time, like the ICT permit, raise important social security challenges.

According to consistent case-law of the Court of Justice of the European Union (‘CJEU’ or ‘the Court’), set out in the current European Regulations, a CoC should be considered binding, and therefore in principle does not allow the institutions of the host country to examine its validity.

The CJEU Judgment  

Today the CJEU has replied to a very important request for a preliminary ruling from the Belgian Supreme Court, in respect of the scope of the binding nature of the E101 certificate (C-359/16).

In its ruling, the CJEU follows the opinion of the Advocate-General Saug­mands­gaard Øe by stating that a court of the host country may disregard an E101 (or A1) certificate, formally issued in accordance with the provisions of the EU Regulations, by the competent institution of the home country, if that court finds that the certificate was obtained or invoked fraudulently.

In the current EU Regulations there is no definition of ‘fraud’ (yet). Anticipating an amendment of the Regulations, the CJEU suggests that fraud can be detected in cases where the applicant has the intention of concealing the fact that the objective conditions for requesting a CoC are not fulfilled. E.g. the condition that the employer continues to have an actual business in the home country.

The present ruling comes after yet another very important judgement of the CJEU of last year (C-620/15) in which the Court had re-confirmed its consolidated case-law by stating that a CoC is binding as long as the certificate has not been withdrawn or declared invalid by the authorities of the issuing Member State. This holds true even where it is found that the conditions under which the worker carries out his/her activities clearly do not fall within the material scope of the legal provision under which the certificate is issued.

Recalling the principles of cooperation and mutual trust between Member States, the CJEU’s decision today opens the door, for the first time, for the host country’s competent authorities to investigate the facts underlying the issuance of a CoC. If the home country fails to carry out a review of the certificate within a reasonable period of time in the light of evidence of fraud, and the certificate is not withdrawn or declared invalid by the home country, the host country will therefore be allowed to disregard the certificate. In practice, this will likely lead to retro-active applicability of host country social security, along with rather significant penalties.

Finally, considering another opinion of the same Advocate-General in a very recent pronouncement of January 31st, 2018, the CJEU may continue down the same road in the future in respect of other conditions that are fundamental for the issuance of a CoC, such as the fact that a posted worker cannot be sent in replacement of another posted worker.

How We Can Help

Although today’s judgment has to be viewed in light of the protests of many European countries in relation to ‘social dumping’ and the need to intervene in that respect, it will likely give rise to more investigative actions in respect of the CoC, from host country authorities.

Fragomen can assist your company with ensuring that A1 certificates are requested in accordance with the requirements of the EU Regulations, and make sure your company is compliant in both immigration and social security, from Day 1.

Countries / Territories

  • 🌐

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Related offices

  • Brussels (Benelux)
  • Dublin
  • Frankfurt
  • London
  • Sheffield

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Explore more at Fragomen

Podcast

Luxury Unwrapped

Partners Cosmina Morariu and Rahul Soni examine how immigration and global mobility trends are influencing workforce strategy across the luxury sector.

Learn more

Blog post

US Visitor Visa Rules for the 2026 FIFA World Cup: What Fans Should Know

Senior US Consular Manager Brian L. Simmons outlines how evolving US visitor visa rules, travel bans and new financial requirements may affect attendance at the 2026 FIFA World Cup and how early fans must prepare.

Learn more

Video

Brazil Statutory Director Visa: Requirements, Investment and Process

In this video, Brazil Managing Partner Diana Quintas explains the statutory director visa, outlining who qualifies, key compliance considerations and what employers and directors should consider when planning appointments or changes to board leadership.

Learn more

Fragomen news

Fragomen's Immigration Guide for the UK Tech Sector

Fragomen’s "Immigration Guide for the UK Tech Sector" introduces visa options available for those working and recruiting in the tech sector.

Learn more

Media mentions

Global Mobility Lawyer: A Focus on Compliance Means Clients Often Miss the Strategic Risk

Europe Managing Partner George Koureas highlights the growing role of immigration in shaping global business and managing strategic risks.

Learn more

Blog post

What UK Immigration Changes Mean for Tech Employers in 2026

Senior Associate Tayyaba Karim and Immigration Consultant Khadija Begum examine key UK immigration developments affecting the tech sector at the start of 2026, including higher sponsorship costs, new Skilled Worker English language requirements and emerging policy reforms shaping workforce planning.

Learn more

Blog post

Future-Proof Your Status: Why Applying Early for Singapore PR Makes Sense Now

Assistant Business Immigration Manager Shirley Kock and Senior Business Immigration Consultant Eunice Leo examine why applying early for Singapore permanent residency can strengthen long-term outcomes for foreign professionals and their families amid increasing competition and evolving immigration policies.

Learn more

Blog post

British and Irish Dual Nationals: UK ETA Rules and Passport Requirements

UK Government Affairs Strategy Director Shuyeb Muquit outlines key passport and documentation considerations for British and Irish dual nationals as the UK’s Electronic Travel Authorisation (ETA) scheme moves into full enforcement from 25 February 2026, warning that failure to carry proof of British or Irish citizenship may result in boarding delays or refusal.

Learn more

Media mentions

Le Monde: La moitié des nouveaux arrivants en France sont étudiants ou réfugiés

Senior Manager Géraldine Renaudière highlights how evolving policies and growing talent visa programs are shaping France’s immigration landscape.

Learn more

Video

Costa Rica Visa Options Explained: Which Residency Path Is Right for You?

Senior Immigration Consultant Adriana Martinez Garro outlines the main visa and residency options available in Costa Rica, offering a practical overview for visitors, remote workers, retirees, investors and families exploring short- or long-term pathways.

Learn more

Awards

Nadine Goldfoot and David Crawford recognized in Uglobal Immigration Magazine’s Top 25 Global Migration Attorneys list

Managing Partner Nadine Goldfoot and Senior Counsel David Crawford are recognized in Uglobal Immigration Magazine’s 2025 Top 25 Global Migration Attorneys list.

Learn more

Media mentions

Gazeta Prawna: Dlaczego urzędy odmawiają nadania obywatelstwa? Nowe zasady weryfikacji wniosków

Partner Karolina Schiffter addresses the rise in Polish citizenship refusals and the impact of automated decision-making on individual cases.

Learn more

Podcast

Luxury Unwrapped

Partners Cosmina Morariu and Rahul Soni examine how immigration and global mobility trends are influencing workforce strategy across the luxury sector.

Learn more

Blog post

US Visitor Visa Rules for the 2026 FIFA World Cup: What Fans Should Know

Senior US Consular Manager Brian L. Simmons outlines how evolving US visitor visa rules, travel bans and new financial requirements may affect attendance at the 2026 FIFA World Cup and how early fans must prepare.

Learn more

Video

Brazil Statutory Director Visa: Requirements, Investment and Process

In this video, Brazil Managing Partner Diana Quintas explains the statutory director visa, outlining who qualifies, key compliance considerations and what employers and directors should consider when planning appointments or changes to board leadership.

Learn more

Fragomen news

Fragomen's Immigration Guide for the UK Tech Sector

Fragomen’s "Immigration Guide for the UK Tech Sector" introduces visa options available for those working and recruiting in the tech sector.

Learn more

Media mentions

Global Mobility Lawyer: A Focus on Compliance Means Clients Often Miss the Strategic Risk

Europe Managing Partner George Koureas highlights the growing role of immigration in shaping global business and managing strategic risks.

Learn more

Blog post

What UK Immigration Changes Mean for Tech Employers in 2026

Senior Associate Tayyaba Karim and Immigration Consultant Khadija Begum examine key UK immigration developments affecting the tech sector at the start of 2026, including higher sponsorship costs, new Skilled Worker English language requirements and emerging policy reforms shaping workforce planning.

Learn more

Blog post

Future-Proof Your Status: Why Applying Early for Singapore PR Makes Sense Now

Assistant Business Immigration Manager Shirley Kock and Senior Business Immigration Consultant Eunice Leo examine why applying early for Singapore permanent residency can strengthen long-term outcomes for foreign professionals and their families amid increasing competition and evolving immigration policies.

Learn more

Blog post

British and Irish Dual Nationals: UK ETA Rules and Passport Requirements

UK Government Affairs Strategy Director Shuyeb Muquit outlines key passport and documentation considerations for British and Irish dual nationals as the UK’s Electronic Travel Authorisation (ETA) scheme moves into full enforcement from 25 February 2026, warning that failure to carry proof of British or Irish citizenship may result in boarding delays or refusal.

Learn more

Media mentions

Le Monde: La moitié des nouveaux arrivants en France sont étudiants ou réfugiés

Senior Manager Géraldine Renaudière highlights how evolving policies and growing talent visa programs are shaping France’s immigration landscape.

Learn more

Video

Costa Rica Visa Options Explained: Which Residency Path Is Right for You?

Senior Immigration Consultant Adriana Martinez Garro outlines the main visa and residency options available in Costa Rica, offering a practical overview for visitors, remote workers, retirees, investors and families exploring short- or long-term pathways.

Learn more

Awards

Nadine Goldfoot and David Crawford recognized in Uglobal Immigration Magazine’s Top 25 Global Migration Attorneys list

Managing Partner Nadine Goldfoot and Senior Counsel David Crawford are recognized in Uglobal Immigration Magazine’s 2025 Top 25 Global Migration Attorneys list.

Learn more

Media mentions

Gazeta Prawna: Dlaczego urzędy odmawiają nadania obywatelstwa? Nowe zasady weryfikacji wniosków

Partner Karolina Schiffter addresses the rise in Polish citizenship refusals and the impact of automated decision-making on individual cases.

Learn more

Stay in touch

Subscribe to receive our latest immigration alerts

Subscribe

Our firm

  • About
  • Careers
  • Firm Governance
  • Media Inquiries
  • Recognition

Information

  • Attorney Advertising
  • Legal Notices
  • Privacy Policies
  • UK Regulatory Requirements

Our firm

  • About
  • Careers
  • Firm Governance
  • Media Inquiries
  • Recognition

Information

  • Attorney Advertising
  • Legal Notices
  • Privacy Policies
  • UK Regulatory Requirements

Have a question?

Contact Us
  • LinkedIn
  • Youtube
  • Instagram
  • Facebook
  • Twitter

© 2026 Fragomen, Del Rey, Bernsen & Loewy, LLP, Fragomen Global LLP and affiliates. All Rights Reserved.

Please note that the content made available on this site is not intended for visitors / customers located in the province of Quebec, and the information provided is not applicable to the Quebec market. To access relevant information that applies to the Quebec market, please click here.