Published on 07/08/2026 · Sources last reviewed: 07/08/2026 · Our method

The right to work in Luxembourg

If you are a national of the European Union, the EEA or Switzerland, this page does not concern you: you have no authorisation to apply for. For everyone else, this is the first question to settle — and the only one whose answer can be no.

The figure that decides, and that you read nowhere. Between the decision to hire you and your first working day, the law allows the administration up to five months: three weeks of labour market test, then four months of processing. Those are months without income. They weigh more than a monthly tax gap, and no comparison tool shows them to you.

Three situations, three regimes

Your situation	What you need	Statutory response time
EU / EEA / Switzerland	nothing	—
Third country, you move to Luxembourg	residence authorisation, then a residence permit	4 months maximum
Third country, you remain a cross-border worker	work authorisation	3 months maximum

The third case is the least known, and it concerns our area directly. A Moroccan, Algerian or Brazilian national legally resident in France and working in Luxembourg does not need a Luxembourg residence permit: they need a work authorisation. Confusing the two means filing the wrong application at the right desk, and losing months.

The three traps that cost the whole plan

1. Applying from within Luxembourg makes the application inadmissible

“Save in exceptional cases, the application must be filed and granted before entry into the territory.”

“An application filed within the territory is declared inadmissible.”

That is not a delay. That is a refusal.

2. The administration's silence counts as a refusal

The ministry has four months to reply. No answer is a presumed refusal. Waiting passively is therefore not a neutral position.

3. Your employer's certificate expires, and cannot be extended

Before recruiting you, your employer must declare the vacancy to ADEM and obtain a certificate attesting that Community preference has been respected. That certificate is valid for three months and “cannot be extended”. A slow file lets it lapse, and everything starts again.

The decisive step is not yours. Without the ADEM certificate your file is incomplete — and it is your employer who obtains it. You can only ask for it and follow it up. A well-informed candidate raises it at the interview.

The shortage occupation list speeds things up — it does not exempt

You often read that being on ADEM's list of severe shortage occupations “exempts you from the labour market test”. The official page says something else:

“If the post declared in the offer corresponds to an occupation on the list of severe shortage occupations […], you will receive the certificate within 5 working days.”

The test is not removed, it is shortened — three weeks become five working days. The gain is real: about two weeks. But the list exempts you from nothing, and its nature changes: it is not a market indicator, it is a procedural accelerator.

The EU Blue Card: the only genuinely fast route

Condition	Value
Gross annual pay	≥ €65,652 (amount set by grand-ducal regulation)
Contract length	≥ 6 months
Qualification	“the high professional qualifications required”
Validity of the card	4 years, or the contract length + 3 months if the contract is shorter than 4 years
Labour market test	exempt

This is the only case where the exemption is real and written: “Highly qualified workers are not subject to the labour market test obligation.” It removes ADEM's three weeks — not the four months of processing.

The path, if you move

Before entry

Your employer obtains the ADEM certificate.
You apply for the temporary residence authorisation to the Direction générale de l'immigration — passport, criminal record extract, CV, diplomas, signed contract, ADEM certificate.
If your nationality requires it, you apply for a type D visa.

The authorisation granted is valid for 90 days: that is your window to enter.

After entry

Arrival declaration to the commune within 3 days.
Medical check, including tuberculosis screening.
Residence permit, to be applied for within 3 months.

A restriction almost nobody anticipates. Your first residence permit is valid for one year at most and is limited to a single occupation in a single sector. In that first year, changing jobs is not a personal choice: it is a fresh procedure.

What we have not established

The actually observed processing times. We publish only the statutory caps: an invented average would be worse than no figure at all.
The list of nationalities subject to a type D visa, which changes the number of steps.
The cost of the procedures (fees, stamps).
Family reunification, which decides for a household rather than a person.
The “exceptional cases” allowing an application from within the territory: the source mentions them without listing them.

Sources: Guichet.lu, the official administrative portal — third-country employee (updated 10.07.2023), third-country cross-border worker and EU Blue Card (03.03.2026), declaration of a vacancy to ADEM (15.04.2024). Consulted 07.08.2026. Freshness is uneven and we say so: the employee page is three years old, and the Blue Card threshold is set by grand-ducal regulation — it moves.