Free Movement of Persons: Workers, Residence Rights, and Access to Employment

Free Movement of Persons: Workers, Residence Rights, and Access to Employment

1. Introduction

The free movement of persons is one of the defining achievements of European integration. It allows citizens of the European Union to move between Member States, pursue employment, establish professional and personal lives abroad, and enjoy legal protection against discrimination based on nationality. It has transformed the relationship between citizenship, employment, residence, and national sovereignty by creating rights that individuals may exercise directly under EU law.

The legal framework is built around two closely connected principles. The first is the free movement of workers, guaranteed by Article 45 of the Treaty on the Functioning of the European Union (TFEU). It protects individuals who move to another Member State to undertake genuine and effective employment. The second is the broader right of EU citizens to move and reside freely under Article 21 TFEU, developed principally by Directive 2004/38/EC.

These rights are supported by additional legislation. Regulation (EU) No 492/2011 protects equal treatment in access to employment and working conditions. Directive 2004/38/EC establishes the principal framework governing entry, residence, permanent residence, family members, and restrictions on movement. Directive 2014/54/EU seeks to facilitate the practical exercise of workers’ rights, while Regulation (EC) No 883/2004 coordinates national social security systems.

The legal framework does not create a single European labour law or replace national employment legislation. Member States retain authority over matters such as wages, working conditions, professional regulation, taxation, and social security, subject to their obligations under EU law. The purpose of free movement is to ensure that national differences do not become unjustified obstacles to the mobility of EU citizens or sources of nationality-based discrimination.

The distinction between workers and other categories of mobile citizens is particularly important. An employed person generally enjoys extensive residence and equal-treatment rights. A student, retired person, economically inactive citizen, or jobseeker may exercise free movement under different conditions. EU law therefore combines a broad principle of mobility with a structured system of residence rights and safeguards.

2. Constitutional Foundations: Articles 21 and 45 TFEU

2.1 Article 21 TFEU: Citizenship and the right to move

Article 21(1) TFEU provides that every citizen of the Union has the right to move and reside freely within the territory of the Member States, subject to the limitations and conditions laid down in the Treaties and the measures adopted to give them effect.

This provision connects freedom of movement with Union citizenship. A person does not need to be employed in order to possess the basic right to move to another Member State. EU citizenship provides a legal foundation for mobility for employment, education, family life, retirement, and other lawful purposes.

The right is not unconditional. The Treaties and secondary legislation establish requirements concerning residence, economic activity, resources, health insurance, and public-order restrictions. Nevertheless, Article 21 represents a significant development beyond the traditional economic freedoms of the original European Communities.

2.2 Article 45 TFEU: Free movement of workers

Article 45 TFEU specifically guarantees the free movement of workers within the Union.

It requires the abolition of discrimination based on nationality between workers of Member States concerning employment, remuneration, and other conditions of work and employment.

The provision protects several connected rights, including:

• The right to accept genuine offers of employment.
• The right to move freely within the territory of Member States for this purpose.
• The right to reside in another Member State for employment.
• The right to remain in the host Member State after employment, subject to applicable EU rules.
• The right to equal treatment with nationals of the host state in employment-related matters.

Article 45 also prohibits restrictions that unjustifiably hinder the exercise of free movement, even where they are not formally discriminatory.

Article 45(3) identifies the principal rights associated with worker mobility, while Article 45(4) provides an exception for employment in the public service. The latter is interpreted narrowly by the Court of Justice.

2.3 Relationship between citizenship and worker status

Union citizenship and worker status are related but distinct legal concepts.

An EU citizen may rely on Article 21 TFEU without being employed. However, the additional protections associated with Article 45 generally require the person to qualify as a worker or to fall within a category of persons retaining worker-related rights.

The distinction has practical consequences. Workers enjoy equal treatment in a broad range of employment-related and social advantages. Economically inactive citizens seeking residence beyond three months must generally satisfy the conditions concerning sufficient resources and comprehensive sickness insurance under Directive 2004/38/EC.

The Court of Justice has repeatedly emphasised the importance of Union citizenship while also recognising that residence and social assistance rights must be assessed according to the conditions established by EU law.

3. Who Qualifies as a Worker Under EU Law?

3.1 An autonomous European concept

The concept of a worker under Article 45 TFEU is an autonomous concept of EU law. It cannot be defined exclusively by national legislation.

If each Member State could determine independently who qualifies as a worker, the scope of the fundamental freedom would vary considerably between national legal systems. The Court of Justice therefore developed a common definition to ensure consistent protection.

In Lawrie-Blum v Land Baden-Württemberg (Case 66/85), the Court established the essential elements of an employment relationship: for a certain period, a person performs services for and under the direction of another person in return for remuneration.

This definition identifies three central characteristics:

1. The individual performs genuine work or services.
2. The activity is carried out under the direction or authority of another person.
3. The individual receives remuneration.

The precise legal form of the employment relationship is not decisive. National authorities must examine the substance of the activity.

3.2 Genuine and effective employment

Not every activity involving payment qualifies as employment under Article 45.

The activity must be genuine and effective rather than purely marginal and ancillary.

In Levin v Staatssecretaris van Justitie (Case 53/81), the Court held that part-time employment may fall within the concept of worker even where the remuneration is below the minimum level considered necessary for subsistence in the host Member State.

The fact that an individual supplements employment income through other financial resources does not automatically remove worker status.

Similarly, in Kempf v Staatssecretaris van Justitie (Case 139/85), the Court confirmed that a person may qualify as a worker even where the remuneration is supplemented by public assistance.

The decisive question is whether the employment itself is genuine and effective.

3.3 Part-time, temporary, and low-paid work

EU law does not restrict worker status to full-time, permanent, or highly remunerated employment.

Part-time workers, seasonal workers, and individuals employed under fixed-term contracts may benefit from Article 45 if the activity is genuine and effective.

The Court’s approach prevents national authorities from excluding workers merely because their employment does not resemble a conventional full-time employment relationship.

However, purely artificial arrangements or activities so limited that they are merely marginal may fall outside the concept.

3.4 The worker’s intention and personal circumstances

The worker’s motives for moving to another Member State do not generally determine whether Article 45 applies.

A person may move for personal, family, or educational reasons and subsequently undertake genuine employment. The legal assessment focuses on the actual employment relationship rather than the individual’s original motivation.

The same principle protects individuals whose employment is combined with study, family responsibilities, or other activities, provided the conditions for worker status are satisfied.

4. Access to Employment in Another Member State

4.1 The right to seek and accept employment

Article 45 protects more than individuals who have already entered into employment. It also supports the right of EU citizens to move to another Member State in search of work.

A national of one Member State may generally apply for jobs in another Member State without obtaining a work permit.

The host state cannot impose nationality-based restrictions on access to employment that are incompatible with EU law.

The right to seek employment is supported by Regulation (EU) No 492/2011, which prohibits discrimination in access to employment and establishes rules concerning recruitment, employment conditions, and equal treatment.

4.2 Equal access to employment services

EU citizens seeking employment in another Member State are entitled to equal treatment in access to employment services, subject to the applicable conditions.

This includes access to public employment offices and assistance with finding work.

The host state may require jobseekers to establish a genuine connection with its labour market before granting certain forms of financial assistance designed to facilitate access to employment. Such conditions must remain compatible with EU law.

The European employment network EURES supports labour mobility by providing information about vacancies, living and working conditions, and cross-border recruitment. It also assists employers and jobseekers in identifying opportunities across national labour markets.

4.3 The right to remain while seeking employment

In The Queen v Immigration Appeal Tribunal, ex parte Antonissen (Case C-292/89), the Court of Justice recognised that the free movement of workers includes the right to enter another Member State in order to seek employment.

The Court accepted that a host Member State may establish a reasonable period for jobseekers to find work. However, a person cannot automatically be required to leave merely because that period has expired if the individual provides evidence that they continue to seek employment and have a genuine chance of being engaged.

Directive 2004/38/EC subsequently established a more detailed framework. Article 14(4)(b) provides that an EU citizen may not be expelled where they entered the host Member State to seek employment and can provide evidence that they are continuing to seek employment and have a genuine chance of being engaged.

The right is therefore not an unlimited entitlement to remain indefinitely without making genuine efforts to obtain employment. It is a protected period of job search subject to the circumstances of the individual case.

4.4 Recruitment and nationality discrimination

Regulation (EU) No 492/2011 prohibits nationality-based discrimination in access to employment.

A host Member State cannot generally reserve ordinary private-sector employment for its own nationals or impose additional recruitment conditions on EU citizens from other Member States merely because they are foreign nationals.

The prohibition extends to recruitment conditions, eligibility requirements, and access to employment services.

Language requirements may be legitimate where knowledge of a particular language is genuinely necessary for the position. However, such requirements must be proportionate to the nature of the work and cannot be used as disguised nationality discrimination.

A requirement for a language level unrelated to the duties of the position may therefore raise questions under Article 45.

5. Residence Rights Under Directive 2004/38/EC

Directive 2004/38/EC, commonly known as the Free Movement Directive or Citizens’ Rights Directive, provides the principal legislative framework for the right of EU citizens and their family members to move and reside freely within the territory of the Member States.

It consolidates earlier legislation and establishes a structured system of entry, short-term residence, longer residence, permanent residence, and restrictions on movement.

5.1 Entry into another Member State

Article 5 of the Directive provides that EU citizens may enter another Member State with a valid identity card or passport.

No entry visa or residence permit may be required from an EU citizen.

Family members who are not nationals of a Member State may be subject to visa requirements, but the Directive requires Member States to facilitate the necessary procedures and provide relevant exemptions where applicable.

A valid residence card issued under Article 10 may exempt a non-EU family member from the visa requirement under the Directive.

5.2 Residence for up to three months

Article 6 establishes the right of residence for up to three months.

An EU citizen may reside in another Member State for this period without conditions or formalities other than holding a valid identity card or passport.

The host state may require registration of presence under national administrative rules, but such requirements cannot undermine the substance of the right.

Family members who are not EU citizens also benefit from the right of residence for up to three months when accompanying or joining the Union citizen, subject to the relevant documentation requirements.

5.3 Residence for more than three months

Article 7 establishes the conditions for residence exceeding three months.

An EU citizen has the right to reside in another Member State where they fall within one of the recognised categories.

Workers and self-employed persons: Individuals who are employed or self-employed in the host Member State have a right of residence under Article 7(1)(a).

Economically inactive persons: Individuals who are not working must have sufficient resources for themselves and their family members not to become an unreasonable burden on the host state’s social assistance system during their residence, together with comprehensive sickness insurance.

Students: Students must be enrolled at an accredited educational establishment for the principal purpose of studying or vocational training, have comprehensive sickness insurance, and make the required declaration or provide evidence of sufficient resources.

Family members: Qualifying family members accompanying or joining an EU citizen who satisfies the relevant residence conditions also enjoy residence rights under the Directive.

These categories demonstrate that the right to reside beyond three months depends on the legal basis of the individual’s presence in the host state.

5.4 Registration formalities

A host Member State may require EU citizens to register with the competent authorities where their residence exceeds three months.

Under Article 8, registration must be based on the applicable conditions and cannot become an excessive administrative obstacle.

An employed person may generally establish worker status through evidence of employment, such as an employer’s confirmation, employment contract, or other appropriate documentation.

The registration certificate is declaratory of the right of residence rather than the source of that right. A Member State cannot treat the absence of a registration certificate as automatically extinguishing a right that arises directly under EU law.

Family members who are not EU citizens must generally apply for a residence card under Article 10.

6. Retention of Worker Status After Employment Ends

One of the most important aspects of EU free movement law concerns individuals who lose their employment or temporarily stop working.

The termination of an employment relationship does not necessarily end worker status or the associated residence rights.

Article 7(3) of Directive 2004/38/EC establishes circumstances in which a person retains the status of worker or self-employed person.

These include:

• Temporary incapacity for work resulting from illness or accident.
• Duly recorded involuntary unemployment after having been employed for more than one year, provided the individual registers as a jobseeker with the relevant employment office.
• Duly recorded involuntary unemployment after completing a fixed-term employment contract of less than one year or becoming involuntarily unemployed during the first twelve months, provided the individual registers as a jobseeker. In this situation, worker status is retained for at least six months.
• The commencement of vocational training, subject to the conditions established by the Directive.

The Directive therefore distinguishes between different employment histories.

A person who has worked for more than one year and becomes involuntarily unemployed may retain worker status if they register as a jobseeker and continue to satisfy the relevant conditions.

A person whose employment lasted less than one year, or who became involuntarily unemployed during the first year, retains worker status for a minimum period of six months, subject to registration and the other requirements.

These rules are significant because retained worker status preserves the right of residence under Article 7 and access to equal treatment under Article 24.

The legal position differs from that of an individual who has never worked in the host state and is present solely as a jobseeker.

7. Permanent Residence

7.1 Acquisition after five years

Article 16 of Directive 2004/38/EC establishes the right of permanent residence.

EU citizens who have resided legally in the host Member State for a continuous period of five years acquire permanent residence.

The same right applies to qualifying family members who are not EU citizens and have legally resided with the Union citizen for the required period.

Once acquired, permanent residence is no longer subject to the conditions governing ordinary residence under Article 7.

The individual is therefore no longer required to demonstrate employment, sufficient resources, or comprehensive sickness insurance as conditions for maintaining the permanent residence right.

7.2 Continuity of residence

The Directive recognises that ordinary life involves temporary absences.

Article 16(3) provides that continuity of residence is not affected by temporary absences that do not exceed a total of six months per year, absences for compulsory military service, or one absence of up to twelve consecutive months for important reasons, including pregnancy and childbirth, serious illness, study, vocational training, or posting in another Member State or a third country.

Once acquired, permanent residence is lost only through absence from the host Member State for more than two consecutive years.

7.3 Early acquisition by workers and self-employed persons

Article 17 provides for the acquisition of permanent residence in certain circumstances before the completion of five years.

These include retirement after working in the host state for the required period, permanent incapacity to work following employment in the host state, and certain situations involving cross-border workers who have worked in the host state but reside in another Member State.

The conditions are specific and depend on the individual’s employment history and circumstances.

The provision reflects the principle that individuals who have established a substantial connection with the host state’s labour market should not necessarily have to wait five years to acquire permanent residence where the Directive’s conditions are met.

8. Family Members and Derivative Residence Rights

Free movement is not limited to the individual worker. Directive 2004/38/EC recognises that family life is an important part of mobility and that workers must be able to move without being separated unnecessarily from close family members.

8.1 Core family members

Article 2(2) identifies the principal categories of family members:

• The spouse.
• A registered partner, where the host Member State treats registered partnerships as equivalent to marriage under its legislation.
• Direct descendants under the age of 21 or dependent descendants, including those of the spouse or registered partner.
• Dependent direct relatives in the ascending line, including those of the spouse or registered partner.

These family members enjoy rights of entry and residence when accompanying or joining the Union citizen, subject to the Directive’s conditions.

Importantly, family members do not need to be EU citizens themselves. A third-country national may derive residence rights through their qualifying relationship with an EU citizen who has exercised free movement.

8.2 Other family members and durable partners

Article 3(2) requires Member States to facilitate entry and residence for certain other family members who do not fall within the core definition.

These include family members who are dependent on or members of the household of the Union citizen, and those who require personal care because of serious health grounds.

The Directive also requires facilitation of the entry and residence of a partner with whom the Union citizen has a duly attested durable relationship.

These categories do not create precisely the same automatic entitlement as the core family-member provisions. Member States must undertake an extensive examination of the personal circumstances and justify any refusal.

8.3 Divorce, death, and departure

The Directive recognises that family relationships may change after a worker moves to another Member State.

Articles 12 and 13 establish conditions under which family members may retain residence rights following the death or departure of the Union citizen, or following divorce, annulment of marriage, or termination of a registered partnership.

The retained rights depend on circumstances such as the duration of the marriage or partnership, the existence of children, custody arrangements, and other conditions specified in the Directive.

The purpose is to prevent residence rights from becoming entirely dependent on the continuing existence of a relationship where the family member has developed a substantial connection with the host state.

9. Equal Treatment in Employment and Working Conditions

9.1 Article 45 TFEU and Regulation 492/2011

Equal treatment is central to the free movement of workers.

Article 45 TFEU prohibits nationality discrimination concerning employment, remuneration, and other conditions of work and employment.

Regulation (EU) No 492/2011 develops this principle and provides detailed rules governing access to employment and the treatment of migrant workers.

Article 7 of the Regulation is particularly important. It provides that a worker who is a national of one Member State may not, in the territory of another Member State, be treated differently from national workers by reason of nationality in relation to conditions of employment and work, particularly remuneration, dismissal, and reinstatement or re-employment.

The principle extends to social and tax advantages, subject to the relevant legal conditions.

9.2 Social advantages

The concept of social advantage has been interpreted broadly by the Court of Justice.

In Cristini v Société nationale des chemins de fer français (Case 32/75), the Court recognised that certain benefits granted to workers and their families could constitute social advantages under the free movement framework.

The principle may extend beyond benefits strictly connected with the employment contract. It can include advantages that are generally granted to national workers because of their objective status as workers or residents.

The purpose is to ensure that migrant workers are not placed at a disadvantage in the social environment of the host Member State.

9.3 Tax advantages

Article 7 of Regulation 492/2011 also protects migrant workers against nationality discrimination in the field of taxation.

A Member State cannot impose less favourable tax treatment on a worker from another Member State merely because of nationality, where the relevant conditions for equal treatment are satisfied.

The application of tax equality may involve complex questions concerning residence, income, family circumstances, and the distribution of taxing powers between Member States.

The Court’s case law has repeatedly required national tax systems to respect the fundamental freedoms, while recognising that differences in national tax legislation do not automatically constitute unlawful discrimination.

9.4 Family integration and education

Regulation 492/2011 also protects the position of workers’ children.

Article 10 provides that children of a national of a Member State who is or has been employed in another Member State are entitled to be admitted to the host state’s general educational, apprenticeship, and vocational training courses under the same conditions as nationals.

The provision supports the integration of migrant workers’ families and recognises that mobility affects not only the individual worker but also the education and future opportunities of their children.

The Court has interpreted these rights in cases such as Baumbast and R v Secretary of State for the Home Department (Case C-413/99), which concerned residence rights connected with children’s education and the position of their primary carer.

10. Social Security Coordination and Mobile Workers

10.1 Coordination rather than harmonisation

Free movement would be less effective if workers lost social security protection whenever they moved between Member States.

However, the EU does not operate a single unified social security system. Member States retain authority to determine the structure of their systems, the benefits they provide, contribution rates, and eligibility conditions, subject to EU coordination rules.

Regulation (EC) No 883/2004 and its implementing Regulation (EC) No 987/2009 establish the principal framework for coordinating national social security systems.

The distinction between coordination and harmonisation is fundamental.

Harmonisation would involve replacing or substantially aligning national systems. Coordination instead ensures that individuals moving between Member States do not lose rights merely because their employment or residence crosses national borders.

10.2 Applicable legislation and the principle of one system

The coordination framework generally seeks to ensure that a person is subject to the social security legislation of only one Member State at a time.

This prevents simultaneous application of multiple national systems and avoids gaps in coverage.

The applicable legislation depends on the individual’s employment situation and the coordination rules. Special provisions address workers employed in one state and residing in another, persons working in several Member States, posted workers, and other specific categories.

10.3 Aggregation of insurance periods

The principle of aggregation is particularly important.

Where entitlement to a benefit depends on completing a period of insurance, employment, or residence, periods completed in another Member State may need to be taken into account.

Without aggregation, a worker who has spent several years working in different countries might fail to satisfy the qualifying period in each national system, even though their combined employment history would be sufficient.

Regulation 883/2004 therefore seeks to preserve the continuity of social security rights.

10.4 Export of certain benefits

The coordination rules also provide for the exportability of certain benefits.

A person who has acquired entitlement to a qualifying benefit in one Member State may, subject to the applicable rules, continue receiving it while residing in another Member State.

This principle is particularly relevant to certain pensions and other benefits covered by the Regulation.

However, not every benefit is exportable. The rules distinguish between different categories, including special non-contributory cash benefits, social assistance, and benefits subject to particular residence conditions.

10.5 Healthcare and unemployment benefits

The coordination framework also addresses access to healthcare and unemployment benefits.

The European Health Insurance Card facilitates access to medically necessary state-provided healthcare during a temporary stay in another participating country, under the conditions of the applicable coordination rules. It is not a substitute for comprehensive private or statutory health insurance in every residence situation.

Unemployment benefits are governed by specific rules concerning the competent state, aggregation of periods, and temporary export of benefits while seeking employment in another country.

The practical application depends on the worker’s employment history, residence, and the applicable national system.

11. Access to Regulated Professions and Recognition of Qualifications

Free movement of workers would be incomplete if individuals could move across borders but were unable to use their professional qualifications.

Directive 2005/36/EC on the recognition of professional qualifications establishes the principal EU framework for recognising qualifications obtained in another Member State.

The Directive applies to regulated professions, where national law requires specific qualifications for access to or pursuit of a professional activity.

11.1 Automatic recognition

Certain professions benefit from automatic recognition where the relevant minimum training requirements have been harmonised.

These include:

• Doctors.
• Nurses responsible for general care.
• Dentists.
• Veterinary surgeons.
• Midwives.
• Pharmacists.
• Architects.

Applicants who satisfy the applicable harmonised conditions may benefit from recognition without undergoing the full general recognition assessment.

11.2 The general recognition system

Other regulated professions are subject to the general system of recognition.

The competent authority of the host Member State examines the qualifications presented and compares them with the requirements governing the profession domestically.

Where substantial differences exist in training or professional competence, compensatory measures may be permitted under the Directive, including an adaptation period or aptitude test, subject to the applicable conditions.

The objective is to balance professional mobility with the protection of the public and the quality of regulated services.

11.3 Temporary and occasional services

The Directive also provides rules for professionals who wish to provide temporary and occasional services in another Member State without establishing themselves there permanently.

Depending on the profession and applicable requirements, a prior declaration and supporting documentation may be necessary.

The distinction between temporary services and permanent establishment is important because the regulatory procedures may differ significantly.

11.4 The European Professional Card

The European Professional Card is an electronic procedure designed to facilitate recognition for certain professions.

It is available for specified professional groups and allows applications and supporting documents to be processed through a structured electronic system.

The Card does not replace the underlying recognition requirements. It simplifies the administrative procedure through which those requirements are assessed.

12. Restrictions on Free Movement: Public Policy, Security, and Public Health

Free movement is a fundamental right, but it is not absolute.

Article 45(3) TFEU permits limitations justified on grounds of public policy, public security, or public health. Directive 2004/38/EC develops the conditions governing such restrictions.

12.1 Personal conduct

Article 27 of the Directive provides that restrictions on entry and residence may be justified only on grounds of public policy, public security, or public health.

The measures must comply with proportionality and be based exclusively on the personal conduct of the individual concerned.

Previous criminal convictions do not automatically justify expulsion.

The conduct must represent a genuine, present, and sufficiently serious threat affecting one of the fundamental interests of society.

General prevention and deterrence cannot independently justify restrictions on an individual’s freedom of movement.

12.2 Public policy and public security

Public policy and public security are interpreted strictly because they permit restrictions on a fundamental Treaty freedom.

The nature and seriousness of the conduct, the individual’s circumstances, and the degree of threat must be considered.

In Bouchereau (Case 30/77), the Court emphasised that a previous criminal conviction cannot justify expulsion automatically. The circumstances must demonstrate a genuine and sufficiently serious threat to a fundamental interest of society.

The host state must therefore conduct an individual assessment rather than treating criminal history as an automatic ground for removal.

12.3 Public health

Article 29 addresses restrictions justified on public health grounds.

The Directive limits the diseases and conditions that may justify restrictive measures and establishes safeguards concerning medical examinations and the passage of time following entry.

A disease arising after the initial three-month period of residence cannot ordinarily justify expulsion on public health grounds under the Directive.

The purpose is to prevent public health provisions from becoming a general mechanism for excluding individuals because of medical conditions.

12.4 Enhanced protection against expulsion

The Directive provides additional protection for individuals who have acquired permanent residence.

Under Article 28(2), a Member State may not expel an EU citizen or family member who has acquired permanent residence except on serious grounds of public policy or public security.

EU citizens who have resided in the host Member State for the previous ten years, and minors, receive an even higher level of protection under Article 28(3), subject to the specific exceptions set out in the provision.

These safeguards reflect the principle that the strength of an individual’s connection with the host state is relevant when determining whether expulsion is justified.

12.5 Procedural guarantees

Articles 30 and 31 establish procedural safeguards.

Individuals must be notified of decisions restricting entry or residence and informed of the reasons for those decisions, subject to permitted exceptions concerning security information.

They must have access to judicial and, where appropriate, administrative redress procedures.

The right to challenge an expulsion decision is an important element of effective judicial protection.

13. The Public Service Exception

Article 45(4) TFEU excludes employment in the public service from the ordinary free movement rules for workers.

However, the exception is interpreted narrowly.

In Commission v Belgium (Case 149/79), the Court held that the exception concerns posts involving direct or indirect participation in the exercise of powers conferred by public law and duties designed to safeguard the general interests of the state or other public authorities.

It does not permit Member States to reserve every public-sector position for their own nationals.

The assessment is functional rather than institutional. The relevant question is the nature of the duties performed, not simply whether the employer is a public authority.

Positions involving the exercise of sovereign powers or responsibilities for protecting fundamental state interests may fall within the exception. Ordinary technical, administrative, healthcare, educational, or support roles do not automatically qualify merely because they are located within the public sector.

This interpretation prevents the exception from becoming a broad nationality-based exclusion from public employment.

14. The Position of Third-Country Family Members

The free movement framework is principally based on EU citizenship, but it also protects certain family members who are nationals of countries outside the Union.

Directive 2004/38/EC provides derivative rights to qualifying family members who accompany or join an EU citizen exercising free movement.

A non-EU spouse of an EU citizen working in another Member State may therefore obtain a right of residence under the Directive.

The rights are derivative in the sense that they arise through the qualifying relationship with the Union citizen. They are not equivalent to an independent right of free movement available to every third-country national.

The legal position is particularly important where the EU citizen returns to their Member State of nationality after exercising free movement elsewhere.

In Singh (Case C-370/90) and subsequent case law, the Court recognised that certain residence rights may need to be protected when an EU citizen returns home after genuine residence in another Member State. Otherwise, the individual might be discouraged from exercising free movement in the first place.

In O and B (Case C-456/12), the Court clarified that residence in the host Member State must be genuine and in accordance with the conditions of the Directive before certain derivative rights arise upon return.

The application of EU law to purely internal situations is more limited. Where an EU citizen has never exercised free movement, the ordinary rules of EU free movement law may not apply to a family member’s residence claim, subject to exceptional circumstances recognised by the Court.

15. Distinguishing Workers, Self-Employed Persons, and Posted Workers

The legal classification of an individual’s activity is important because different Treaty provisions and legislative frameworks may apply.

15.1 Workers

Workers fall principally within Article 45 TFEU and Regulation 492/2011.

They perform genuine and effective services under the direction of an employer in return for remuneration.

15.2 Self-employed persons

Self-employed individuals generally rely on the freedom of establishment under Articles 49–55 TFEU where they pursue stable and continuous economic activity in another Member State.

Where they provide services temporarily across borders, Articles 56–62 TFEU may apply.

Directive 2004/38/EC recognises self-employed persons as a separate category for residence purposes, but their economic activity is not governed by the worker definition in Article 45.

15.3 Posted workers

A posted worker is generally an employee sent temporarily by an employer to perform work in another Member State in the context of a cross-border provision of services.

The legal framework is different from that governing a person who independently moves to another Member State to enter the local labour market.

Directive 96/71/EC, as amended by Directive (EU) 2018/957, establishes important rules concerning the employment conditions applicable to posted workers.

The Posting of Workers framework seeks to reconcile the freedom to provide cross-border services with the protection of workers in the host state.

Posted workers are not simply treated as ordinary migrant workers who have changed their permanent place of employment. Their legal position depends on the temporary cross-border arrangement and the applicable posting rules.

16. Enforcement of Free Movement Rights

The effectiveness of free movement depends on practical enforcement.

The legal framework provides several mechanisms through which individuals may challenge discriminatory treatment or administrative obstacles.

16.1 National courts

Individuals may invoke directly effective Treaty provisions, including Article 45 TFEU, before national courts.

National courts must ensure that national law is interpreted and applied consistently with EU law. Where a national measure conflicts with an applicable directly effective EU provision, the court must provide the protection required by the principle of primacy.

A worker may therefore challenge nationality-based discrimination in recruitment, remuneration, working conditions, or access to social advantages.

16.2 Preliminary references

Under Article 267 TFEU, national courts may request a preliminary ruling from the Court of Justice concerning the interpretation or validity of EU law.

This mechanism has been particularly important in developing the legal meaning of worker status, residence rights, equal treatment, and the grounds on which restrictions may be justified.

16.3 Infringement proceedings

The European Commission may bring infringement proceedings under Article 258 TFEU where a Member State fails to comply with its obligations.

Such proceedings may concern discriminatory national legislation, unjustified residence requirements, restrictions on access to employment, or failure to implement relevant EU legislation.

16.4 Directive 2014/54/EU

Directive 2014/54/EU seeks to facilitate the exercise of rights conferred on workers in the context of free movement.

It requires Member States to establish or designate bodies responsible for promoting, analysing, monitoring, and supporting equal treatment of Union workers and their family members.

The Directive also strengthens access to legal and administrative procedures and requires appropriate support for individuals facing difficulties exercising their rights.

16.5 SOLVIT and administrative assistance

SOLVIT is an informal administrative network that helps individuals and businesses resolve problems arising from the incorrect application of EU internal market rules by national public authorities.

It can be useful where a worker encounters difficulties with residence documentation, recognition procedures, or other administrative obstacles.

SOLVIT does not replace national courts, formal complaints, or other legal remedies, but it can offer a practical route for resolving certain cross-border problems.

17. Practical Application: Assessing a Free Movement Situation

A legal assessment involving a person moving to another Member State should begin by identifying the individual’s status and the purpose of the move.

First, determine whether the individual is an EU citizen. The nationality of the person is important because the principal free movement rights arise from Union citizenship and the Treaty provisions protecting workers.

Second, identify the nature of the activity. Is the person employed, self-employed, temporarily posted, studying, retired, economically inactive, or seeking employment?

Third, establish the relevant legal basis. Article 45 TFEU governs workers, Article 21 TFEU provides the broader citizenship-based right to move and reside, and Articles 49 and 56 address establishment and services.

Fourth, determine the applicable residence conditions. A stay of up to three months is generally subject to minimal formalities. Residence exceeding three months requires examination of the categories and conditions under Article 7 of Directive 2004/38/EC.

Fifth, consider family members. The legal position may extend to a spouse, qualifying descendants, dependent relatives, and certain other family members or durable partners under the Directive.

Sixth, examine equal treatment. Regulation 492/2011 and Article 45 may protect the individual against nationality discrimination in recruitment, remuneration, working conditions, and social and tax advantages.

Seventh, assess social security and professional qualifications. Regulations 883/2004 and 987/2009 may determine the applicable social security legislation, while Directive 2005/36/EC may govern recognition of professional qualifications.

Finally, consider possible restrictions. Any decision affecting entry or residence must comply with the relevant Treaty provisions and Directive 2004/38/EC, including the requirements of proportionality, individual assessment, and procedural protection.

This approach prevents the mistaken assumption that every person moving within the Union has exactly the same residence and social rights. EU law protects mobility through a structured system in which legal status, economic activity, residence history, and personal circumstances all matter.

18. Key Takeaways

• Article 21 TFEU establishes the general right of EU citizens to move and reside freely within the territory of the Member States.
• Article 45 TFEU specifically protects the free movement of workers and prohibits nationality discrimination in employment, remuneration, and working conditions.
• The concept of a worker is autonomous under EU law and covers genuine and effective employment, including qualifying part-time and low-paid work.
• Regulation (EU) No 492/2011 establishes detailed equal-treatment rules concerning access to employment, working conditions, social advantages, and education for workers’ children.
• Directive 2004/38/EC governs entry, residence, permanent residence, family members, and restrictions on free movement.
• EU citizens generally enjoy a right of residence for up to three months with a valid identity card or passport.
• Residence exceeding three months depends on the individual’s status and the conditions established by Article 7 of the Directive.
• Jobseekers may remain in a host Member State while genuinely seeking employment and demonstrating a real chance of being engaged.
• Workers may retain their status after involuntary unemployment, illness, or other circumstances specified in Article 7(3).
• Permanent residence is generally acquired after five years of continuous legal residence.
• Qualifying non-EU family members may derive residence rights through their relationship with an EU citizen exercising free movement.
• Regulation 883/2004 coordinates national social security systems without replacing them with a single EU system.
• Professional qualifications may be recognised under Directive 2005/36/EC, subject to the applicable recognition procedures.
• Restrictions on free movement may be justified on grounds of public policy, public security, or public health, but must satisfy strict legal conditions.
• The public service exception under Article 45(4) TFEU is interpreted narrowly and applies only to posts involving the exercise of specified public powers and responsibilities.

19. Frequently Asked Questions

1. What is the legal basis of free movement of persons in the European Union?

The principal foundations are Article 21 TFEU, which establishes the general right of EU citizens to move and reside freely, and Article 45 TFEU, which protects the free movement of workers. Directive 2004/38/EC develops the residence rights of citizens and their family members.

2. Do EU citizens need a work permit to work in another Member State?

Generally, no. EU citizens may work in another Member State without obtaining a work permit. They are entitled to equal treatment in access to employment and working conditions, subject to the specific rules governing regulated professions and the limited Treaty exceptions.

3. What qualifies a person as a worker under EU law?

A worker is generally a person who, for a certain period, performs genuine and effective services for and under the direction of another person in return for remuneration. The definition is autonomous under EU law and cannot be determined solely by national legislation.

4. Can an EU citizen move to another Member State without having a job?

Yes. Union citizens may move to another Member State for up to three months with a valid identity card or passport. Residence beyond three months is subject to the conditions in Directive 2004/38/EC, depending on whether the individual is employed, self-employed, studying, seeking work, or economically inactive.

5. Can a jobseeker remain in another Member State indefinitely?

There is no unconditional right to remain indefinitely solely on the basis of seeking employment. However, under Article 14(4)(b) of Directive 2004/38/EC, a jobseeker may not be expelled where they demonstrate that they continue to seek employment and have a genuine chance of being engaged.

6. What happens if a migrant worker loses their job?

The individual may retain worker status and residence rights under Article 7(3) of Directive 2004/38/EC. The applicable period depends on the employment history and circumstances, including whether the unemployment is involuntary and whether the person registers as a jobseeker.

7. Can an EU worker bring family members to another Member State?

Yes. Qualifying family members, including spouses, certain descendants, and dependent relatives, may accompany or join the EU citizen under Directive 2004/38/EC. Certain non-EU family members also enjoy derivative residence rights.

8. When does an EU citizen acquire permanent residence in another Member State?

Generally, after five years of continuous legal residence in the host Member State. Once acquired, permanent residence is no longer subject to the ordinary conditions concerning employment, resources, or comprehensive sickness insurance.

9. Are migrant workers entitled to the same social benefits as nationals?

Workers generally enjoy equal treatment under Article 45 TFEU and Regulation 492/2011, including in relation to specified social and tax advantages. However, the legal position of jobseekers and economically inactive citizens differs, and Directive 2004/38/EC permits certain limitations on access to social assistance.

10. Does EU law harmonise social security systems?

No. EU law principally coordinates national systems through Regulations 883/2004 and 987/2009. These rules address applicable legislation, aggregation of insurance periods, and the coordination or export of certain benefits without creating a single European social security system.

11. Can an EU citizen be expelled from another Member State?

Expulsion is possible in limited circumstances, principally on grounds of public policy, public security, or public health. It must be based on the individual’s personal conduct, satisfy proportionality, and comply with the procedural and substantive safeguards in Directive 2004/38/EC.

12. Does free movement automatically guarantee recognition of professional qualifications?

No. Recognition depends on the profession and the applicable EU framework. Directive 2005/36/EC provides automatic recognition for certain professions and general recognition procedures for others. Additional requirements may apply where justified under EU law.

13. Do third-country nationals enjoy the same free movement rights as EU citizens?

Not generally. Third-country nationals do not acquire the general free movement rights of EU citizens merely because they legally reside in a Member State. However, qualifying family members of EU citizens exercising free movement may derive residence rights under Directive 2004/38/EC. Other specific EU instruments and international agreements may also confer mobility rights.

20. Conclusion

The free movement of persons is a central expression of the legal significance of European Union citizenship and one of the most important mechanisms through which the Single Market affects individual lives.

Article 45 TFEU protects workers against nationality discrimination and enables them to pursue genuine employment throughout the Union. Article 21 TFEU extends the broader principle of mobility to EU citizens beyond the employment relationship. Together, these provisions establish a legal framework in which national borders no longer determine the full extent of an individual’s opportunities to work, reside, and participate in economic and social life.

Directive 2004/38/EC provides the practical structure for exercising these rights. It distinguishes between short-term and longer residence, establishes conditions for permanent residence, protects qualifying family members, and regulates the circumstances in which restrictions may be imposed. Regulation 492/2011 ensures that mobility is accompanied by equal treatment in employment, while the social security coordination framework protects continuity of rights across national systems.

The system nevertheless reflects a balance between individual mobility and the regulatory responsibilities of Member States. Residence beyond three months is subject to legal conditions, access to certain social benefits depends on status, and restrictions may be imposed where legitimate public interests are threatened. These limitations must be interpreted consistently with the Treaties, proportionality, and the safeguards developed by the Court of Justice.

Ultimately, free movement of persons is more than a right to cross a border or accept employment abroad. It is a legal status that enables individuals to build professional and personal lives across the Union while retaining protection against unjustified nationality-based disadvantages. Its effectiveness depends on the consistent application of EU law, recognition of professional qualifications, coordination of social security systems, and access to effective remedies when rights are infringed.

21. Primary Legal Sources and Further Reading

Treaty provisions

• Article 21 TFEU – Right of Union Citizens to Move and Reside Freely
• Article 45 TFEU – Free Movement of Workers
• Article 46 TFEU – Measures to Give Effect to Free Movement of Workers
• Articles 49–55 TFEU – Freedom of Establishment
• Articles 56–62 TFEU – Freedom to Provide Services

EU legislation

• Directive 2004/38/EC – Right of Citizens of the Union and Their Family Members to Move and Reside Freely
• Regulation (EU) No 492/2011 – Freedom of Movement for Workers within the Union
• Directive 2014/54/EU – Measures Facilitating the Exercise of Workers’ Rights in the Context of Free Movement
• Regulation (EC) No 883/2004 – Coordination of Social Security Systems
• Regulation (EC) No 987/2009 – Procedure for Implementing Regulation 883/2004
• Directive 2005/36/EC – Recognition of Professional Qualifications
• Directive 96/71/EC – Posting of Workers in the Framework of the Provision of Services
• Directive (EU) 2018/957 – Amendment of the Posting of Workers Directive

Court of Justice case law

• Case 53/81, Levin v Staatssecretaris van Justitie – Part-Time and Low-Paid Employment
• Case 139/85, Kempf v Staatssecretaris van Justitie – Worker Status and Supplementary Assistance
• Case 66/85, Lawrie-Blum v Land Baden-Württemberg – Definition of a Worker
• Case C-292/89, Antonissen – Right to Seek Employment
• Case 32/75, Cristini v SNCF – Social Advantages
• Case C-413/99, Baumbast and R – Residence and Children’s Education
• Case 30/77, Bouchereau – Public Policy and Expulsion
• Case C-333/13, Dano – Residence Conditions and Social Assistance
• Case C-67/14, Alimanovic – Retained Worker Status and Social Assistance
• Case C-456/12, O and B – Residence Rights of Family Members on Return to the Home Member State
• Case 149/79, Commission v Belgium – Public Service Exception

Institutional resources

• European Commission – Free Movement of EU Nationals
• European Commission – The Right to Reside
• European Commission – EU Legislation on Free Movement of Workers
• European Commission – EU Social Security Coordination
• European Commission – Recognition of Professional Qualifications
• European Commission – EURES: European Employment Services
• European Parliament – Free Movement of Workers