Establishment and temporary provision
Two legally distinct situations.
Establishment presupposes a lasting and organised presence on the territory, with the obligations of permit, registration and taxation that go with it.
Temporary provision consists in carrying out a defined mission, for a limited period fixed by a services contract, without settling.
The boundary between them is not only a question of duration, as the article on when work becomes establishment explains.
A long project may tip a provision of services into establishment, with tax and administrative consequences the firm had not anticipated.
The three variables
This is the theme of the guide, and it governs everything else. Classifying the situation determines which obligations apply.
Where the firm is established. The regime differs according to whether it is established in the European Economic Area or Switzerland, or outside.
What profession it practises. Craft and industrial trades do not follow the same regime as regulated liberal professions subject to permit.
For how long it works there. Occasional and temporary work does not call for the same formalities as a lasting presence.
These three variables cross, and the regime results from their combination, not from any one taken alone.
The detail of that crossing is covered in the article on the three variables.
The four families of obligations
They fall to different authorities and are handled in parallel. The steps do not follow one another, they run at the same time.
| Family | What it concerns |
|---|---|
| Access to the activity | permit or notification |
| Employment law | posting of workers |
| Liability | insurance cover |
| Tax | value added tax, taxation |
None of these families dispenses with the others. A firm exempt from notification remains bound to declare its postings.
This is the commonest error, and it exposes the firm to penalties on ground it believed covered.
The commonest error of reasoning
It consists in reasoning by analogy with one's home country. Neighbouring regimes do not transpose to Luxembourg.
A firm used to a national regime assumes the Luxembourg regime resembles it, and transposes its habits.
Yet thresholds, competent authorities and documents required differ, including between neighbouring countries and despite the common European framework.
The European framework harmonises principles, not procedures. Freedom to provide services does not dispense with national control formalities.
A firm in good standing at home may therefore be in default in Luxembourg, with no intention of evading anything.
What does not depend on the regime
Three elements apply whatever the situation. They concern safety, payment and liability.
The technical and safety rules applying to the site.
Contractual obligations arising from the contract, covered in the guide on specification and tendering.
The planning rules applying to the project, covered in the guide on the building permit.
These three belong to the site, not to the origin of the party working on it.
The articles in this branch
The article on the three variables covers the crossing. How they cross is explained there.
The article on who must notify covers exemptions. The exemptions are set out there.
The article on when work becomes establishment covers the tipping point. The signals of the shift are listed there.
This article reflects the rules at the date of checking and serves professional orientation. It does not constitute legal advice.