Luxembourg Work Permit Guide for Employers (2026)

Ministry response: up to 3 months. Authority: Immigration Directorate — Ministry of Foreign and European Affairs. Labour market test: ADEM — 3-week window. Last reviewed: May 2026

Hiring a third-country national in Luxembourg requires the employer to complete two things before the employee travels: a vacancy declaration to ADEM and, if no suitable local or EU candidate emerges within 3 weeks, obtain an ADEM certificate authorising the hire. Only then can the temporary authorisation to stay be applied for.

This application must be submitted and approved before the employee enters Luxembourg, applications submitted from within Luxembourg are inadmissible. Once approved, the temporary authorisation is valid for 90 days, within which the employee arrives, registers at their commune within 3 days, and then follows the residence permit procedure.

Quick answer

Employer declares vacancy to ADEM → if no local/EU candidate in 3 weeks, ADEM issues certificate → employer signs contract → third-country national applies for temporary authorisation to stay from country of residence to the General Department of Immigration, Ministry of Home Affairs (Ministry responds in up to 4 months) → if visa-required: Type D visa at Luxembourg consulate → employee arrives in Luxembourg → commune declaration within 3 days (receipt = provisional work right) → residence permit application within 3 months of entry → medical check + biometrics → residence permit card.

First year: ISCO code restriction: sector and profession fixed. EU Blue Card: no 3-week labour market test; highly qualified workers exempt. All documents in German, French, or English. The issuing authority is the General Department of Immigration of the Ministry of Home Affairs.

EU, EEA and Swiss nationals — no work permit required

Citizens of EU member states, Iceland, Liechtenstein, Norway, and Switzerland have the right to work in Luxembourg without a work permit. Those who intend to stay for more than 3 months must declare their arrival at the commune within 8 days of arrival and register for a residence certificate.

Family members of EU citizens who are themselves third-country nationals do not need a work permit to carry out a paid activity in Luxembourg, they must request a work permit exemption letter from the Immigration Directorate.

The ADEM labour market test: every employer’s first obligation

How the ADEM process works before any permit application can begin

Before recruiting a third-country national, every employer must declare the vacant position to ADEM. This is a mandatory prerequisite, the employer must be able to prove the declaration was made. ADEM checks whether the vacancy can be filled by a person available on the local or European labour market. The agency has 3 weeks from the declaration to present a suitable candidate.

If ADEM cannot provide a candidate with the required profile within 3 weeks, the employer submits an application to ADEM’s director requesting a certificate granting the right to hire a third-country national of the employer’s choice. The employer then signs a dated employment contract with the intended candidate — the contract may state the start date as “subject to the employee obtaining an authorisation to stay for salaried workers.” The employer gives the original ADEM certificate to the third-country national, who must enclose it with their application for a temporary authorisation to stay.

EU Blue Card exception

Highly qualified workers applying for the EU Blue Card are not subject to the 3-week availability test. The employer must still declare the vacancy to ADEM, but ADEM does not carry out the full labour market check for these roles. The process moves directly to the temporary authorisation to stay application.

Standard salaried worker route vs EU Blue Card

Standard salaried worker route

• Applicable to most employment roles
• Full ADEM 3-week labour market test applies
• ADEM certificate required before application
• First year: ISCO code restriction — sector and profession fixed
• From first renewal: any sector and profession permitted
• Ministry has up to 3 months to respond
• Permit renewed for up to 3 years at first renewal
• Applications submitted from Luxembourg are inadmissible.

EU Blue Card for highly qualified workers

• For highly qualified professionals: degree or 5+ years specialist experience
• ADEM vacancy declaration still required — but no 3-week test
• No labour market availability check
• Salary must meet the annual gross salary threshold (set by Grand-Ducal regulation — verify current figure at time of application)
• Contract minimum 6 months duration
• From first renewal: any sector and profession permitted
• Renewal: up to 4 years per renewal cycle.

The ISCO code restriction

During the first year, the authorisation to stay for salaried workers is granted for one specific profession in one specific sector. This is recorded on the residence permit card under the “observations” field as a three-digit ISCO code from the International Standard Classification of Occupations.

The permitted profession and sector are the ones specified in the employment contract presented during the application. Any change of sector or profession during this first year requires the prior authorisation of the Minister of Immigration and Asylum. From the first renewal onwards, the permit gives access to any sector and any profession without this constraint.

How to hire a third-country national in Luxembourg

The process is predominantly employer-led through steps 1 and 2. The application in step 3 is made by the third-country national (or the employer by written mandate). All steps before arrival must be completed before the employee travels, applications from within Luxembourg are inadmissible.

Employer declares vacant position to ADEM

The employer declares the vacant position to ADEM before recruiting. ADEM checks whether a suitable candidate exists on the local or EU labour market. If no suitable candidate is presented within 3 weeks, the employer applies to ADEM’s director for a certificate granting the right to hire a third-country national. For EU Blue Card roles, the vacancy declaration is still required but the 3-week availability check does not apply. The employer gives the original ADEM certificate to the candidate, who must enclose it in the authorisation to stay application. Mandatory first step: employer must prove the ADEM declaration was made.

Employer signs dated employment contract

The employer signs a dated employment contract with the future employee. The contract may include a clause stating the start date is subject to the employee obtaining an authorisation to stay for salaried workers / work permit.

The employment contract must comply with Luxembourg labour law and include CCSS (Centre Commun de la Sécurité Sociale — Joint Social Security Centre) affiliation details. The employer also provides a recent CCSS certificate to the candidate as part of the application package. Start date may be contingent on permit approval, include this clause as standard.

Third-country national applies for temporary authorisation

The application for a temporary authorisation to stay is submitted by the third-country national (or by the employer with a written mandate — a signed, handwritten “bon pour procuration” power of attorney) to the Immigration Directorate of the Ministry of Foreign and European Affairs, from the applicant’s country of legal residence.

The application must be submitted and approved before entering Luxembourg — applications submitted from within Luxembourg are inadmissible. The Ministry has a statutory maximum of 3 months to respond. If approved, the temporary authorisation to stay is sent by post and is valid for 90 days. Application must be approved BEFORE entry, inadmissible if submitted from Luxembourg (except exceptional cases).

Visa-required nationalities apply for Type D visa

If the employee is from a country that requires a visa to enter Luxembourg, they apply for a Type D long-stay visa at the Luxembourg diplomatic or consular mission in their country of residence. Where Luxembourg is not represented, the Belgian or Dutch consulate acts on its behalf for visa issuance. The visa is affixed in the passport as a seal and is valid for a maximum of 3 months. Nationalities not subject to visa requirements can enter Luxembourg directly using the temporary authorisation to stay and their passport. Belgian or Dutch consulate acts if Luxembourg not represented — Type D visa maximum 3 months.

Employee arrives in Luxembourg, commune declaration within 3 days

The employee must arrive in Luxembourg within 90 days of the temporary authorisation to stay being issued. Within 3 days of arrival, they must declare their arrival at the administration of the commune where they intend to reside. The copy of this declaration of arrival, together with the temporary authorisation to stay, together serve as a provisional work permit and authorisation to stay, allowing the employee to begin work immediately, until the formal residence permit card is produced. Declaration of arrival receipt and temporary authorisation = provisional right to work immediately.

Medical check-up, biometrics, and residence permit card

After arrival, the employee undergoes a mandatory medical check-up for foreigners. This includes a medical examination by an authorised doctor established in Luxembourg and tuberculosis screening. The medical certificate is issued by the Immigration Medical Department of the National Health Directorate and sent to the Immigration Directorate to allow the residence permit application to proceed.

The General Department of Immigration collects biometric data and produces the residence permit chip card, which is valid from the date of the arrival declaration at the commune. Medical check as soon as possible after arrival — required before residence permit card is produced.

Employer notifies Ministry within 3 working days

Within 3 working days of the employee’s first day of work, the employer must notify the start of the working relationship to the Ministry of Foreign and European Affairs in writing (by post, email, or fax). The notification must state the identity of the worker and their 13-digit Luxembourg social security number. The employer must also have verified and retained a copy of the worker’s authorisation to stay or residence permit before the working relationship began. 3 working days from first day of work — employer notification to Ministry is mandatory.

Process / Step	Timeline / Duration	Details / Notes
ADEM declaration	3 weeks	Labour market test window
Authorisation to stay	Up to 3 months	Ministry statutory maximum
Type D visa (if required)	Several weeks	At Luxembourg / Belgian / Dutch consulate
Commune declaration	Within 3 days	Provisional right to work
Residence permit card	After medical + biometrics	Valid from commune declaration date

Employer compliance obligations throughout the employment

• Before recruiting: Declare the vacant position to ADEM and be able to prove it was declared
• Before the working relationship begins: Request to see the worker’s authorisation to stay or residence permit; request a copy and retain it for the entire duration of the contract
• Within 3 working days of the first day of work: Notify the Ministry of Foreign and European Affairs of the start of the working relationship in writing
• At renewal: Submit the renewal application at least 2 months before the current permit expires
• On departure: Third-country nationals who intend to leave Luxembourg for more than 6 months must return their residence permit to the Minister and make a declaration of departure at their commune
• Consequences of non-compliance: Employers who illegally employ third-country nationals with no valid authorisation to stay or residence permit face administrative and criminal sanctions. The permit of the third-country national may be revoked if the employer has been sanctioned for illegal employment, declared bankrupt, failed to fulfil social security or tax obligations, or failed to fulfil obligations under labour law

Documents required for a Luxembourg temporary authorisation to stay

Employer documents

Required Document	Notes
Original ADEM certificate	Original, not a copy. Issued by ADEM’s director confirming the right to hire the third-country national for the declared position. EU Blue Card roles: vacancy declaration proof in lieu of certificate.
Dated employment contract — Luxembourg labour law compliant	Signed by both parties. Must comply with Luxembourg labour law. For Blue Card: salary must meet annual gross salary threshold. May include clause stating start is subject to permit approval.
Recent CCSS affiliation certificate	Certificate from the Centre Commun de la Sécurité Sociale (Joint Social Security Centre) including all salaried worker affiliations to date

Employee (third-country national) documents

Required Document	Notes
Application — on plain paper or official form	Must state the applicant’s identity (surname, first names, and exact address in country of residence)
Valid passport	Plain copy suffices. Must have at least 6 months validity beyond the intended visa expiry date.
Criminal record extract or sworn affidavit	Issued in country of residence. If not in German, French, or English: official translation by sworn translator required FR/DE/EN
Copy of diplomas or professional qualifications	Plain copies suffice. Translation required if not in German, French, or English FR/DE/EN
Proof of suitable housing	Evidence that accommodation is arranged for the employee in Luxembourg
ADEM certificate (original)	Original ADEM certificate provided by the employer must be enclosed — not a copy
Signed employment contract	Dated and signed by both applicant and employer; compliant with Luxembourg labour law
Power of attorney (if applicable)	Written, duly dated and signed. Must include the handwritten note “bon pour procuration” preceding the signature. Not required if applicant applies directly.

Luxembourg work permit at a glance. 2026

Feature	Detail
Issuing authority	General Department of Immigration — Ministry of Home Affairs (immigration.public@mai.etat.lu)
Labour market test authority	ADEM (Agence pour le développement de l’emploi) — adem.public.lu
ADEM waiting period	3 weeks from vacancy declaration — if no suitable candidate, employer may request ADEM certificate
EU Blue Card — labour market test	Exempt from 3-week check; ADEM vacancy declaration still required
Ministry response time	Statutory maximum 4 months. If no response within 4 months, application deemed rejected.
Residence permit application deadline	Within 3 months of entry into Luxembourg — submitted to General Department of Immigration, Ministry of Home Affairs
Temporary authorisation validity	90 days — within which employee must travel, declare arrival, and begin residence permit process
Commune declaration deadline	Within 3 days of arrival
Provisional work right	Commune declaration receiptand temporary authorisation — provisional work permit until card issued
Employer employment notification	Within 3 working days of first day of work to Ministry in writing
First-year ISCO restriction	One profession, one sector — ISCO code on permit. Sector/profession change requires ministerial approval.
From first renewal	Any sector and any profession permitted; renewed for up to 3 years (Blue Card: up to 4 years)
Renewal deadline	At least 2 months before current permit expires
Document language	German, French, or English. Sworn translator translation required for other languages.
Application from Luxembourg	Inadmissible, must be submitted and approved before entry, except in exceptional cases
Long-term absence	Absences over 6 months require permit return and commune departure declaration

Why partner with Acumen International as your Employer of Record in Luxembourg

• Quick talent deployment without incorporating a Luxembourg entity, ensuring market entry without the overhead.
• ADEM process managed from vacancy declaration through certificate issuance.
• Employment contract aligned with Luxembourg labour law and collective agreements from the outset.
• CCSS registration and ongoing social security contributions managed throughout assignment.
• Employer notification obligations to the Ministry handled within the 3-working-day window.
• Permit renewal tracked and submitted at least 2 months before expiry, no compliance gaps.
• Scalable solution — one hire or a strategic team, the same infrastructure and expertise applies across 190+ countries.

Official government resources in Luxembourg

1. Official Luxembourg government portal

The authoritative official source for all work and residence permit procedures in Luxembourg, published by the Luxembourg government. All procedural steps, document requirements, and employer obligations are published here.

2. EU Blue Card for highly qualified workers

Official guidance on the EU Blue Card route for highly qualified third-country nationals in Luxembourg, including the labour market test exemption and salary threshold requirements.

3. ADEM — National Employment Agency

ADEM’s official guidance for employers on the vacancy declaration requirement, the 3-week labour market test, and the ADEM certificate process. Contact for work permit employer questions: info.moe@adem.etat.lu

4. General Department of Immigration — Ministry of Home Affairs

The authority that processes temporary authorisations to stay and residence permits for third-country nationals in Luxembourg. Address: 26, route d’Arlon, L-1140 Luxembourg. Tel: (+352) 247 84 040. Applications for authorisation to stay are submitted here from the applicant’s country of residence, not from within Luxembourg.

5. CCSS — Centre Commun de la Sécurité Sociale

Luxembourg’s Joint Social Security Centre. Employers must be affiliated and provide a recent CCSS certificate as part of the work permit application package. Social security contributions are registered and paid here.

Frequently Asked Questions

Do EU, EEA and Swiss nationals need a work permit in Luxembourg?

No. EU, EEA and Swiss nationals can work in Luxembourg without a work permit. If they stay for more than three months, residence registration rules apply, but they do not need the third-country national work authorisation process.

Can a foreign company hire in Luxembourg without setting up a local entity?

Not directly for a locally employed role. The ADEM vacancy declaration, employment contract, CCSS registration and employer notification duties must sit with a Luxembourg employer. A registered Employer of Record can act as the local employing entity.

What should employers check before making an offer to a third-country national in Luxembourg?

Employers should confirm whether the role follows the standard salaried worker route or the EU Blue Card route, whether the ADEM labour market test applies, and whether the candidate must apply from outside Luxembourg. This avoids offer letters, start dates or onboarding plans that cannot be supported by the permit process.

Does the EU Blue Card avoid the ADEM process completely?

No. The employer must still declare the vacancy to ADEM. However, highly qualified EU Blue Card roles are exempt from the three-week labour market availability test.

Can the employee apply after arriving in Luxembourg?

Usually no. The temporary authorisation to stay must normally be applied for and approved before the employee enters Luxembourg. In-country applications are only possible in limited exceptional cases.

When can the employee start work in Luxembourg?

After arrival, the employee must declare their arrival at the commune within three days. The commune declaration receipt, together with the temporary authorisation to stay, provides provisional work authorisation while the residence permit card is being finalised.

Why does the ISCO code matter in the first year?

The first-year permit is limited to the profession and sector linked to the approved role. A significant role or sector change may require prior ministerial approval. From the first renewal, this restriction is normally lifted.

What employer deadline is easiest to miss after the employee starts work?

The three-working-day Ministry notification is easy to miss because the employee may already have arrived, registered at the commune and started work. Employers should treat the first day of work as a compliance trigger, not just an onboarding date.

Why should Luxembourg work permit renewals be planned early?

Renewals should be prepared well before the two-month filing deadline because the employer may need updated contract, payroll, social security and residence documents. Late preparation can create avoidable gaps in work authorisation and employment compliance.