Luxembourg is a straightforward place to set up a business by European standards, and it is not a place where you simply start invoicing. Most commercial, craft and certain liberal activities require a business permit issued by the Ministry of the Economy, granted on conditions of professional qualification and integrity, and the choice of legal form has consequences for liability, tax and social security. None of it is difficult; all of it is sequential, and doing it in the wrong order costs months.
The business permit
The autorisation d'établissement is the starting point for most commercial, craft and industrial activities and for a number of liberal professions.
- It is issued by the Ministry of the Economy and applied for through MyGuichet.
- Professional qualification must be demonstrated for regulated activities, and the requirements differ substantially between a consultant, a craftsman and a restaurateur.
- Professional integrity is assessed, including any history of insolvency.
- A fixed establishment in Luxembourg is required, meaning genuine premises appropriate to the activity, not simply an address.
- The manager must genuinely direct the business, which rules out lending a qualification to someone else's operation.
Some liberal professions are regulated separately by their own orders and chambers, with their own admission requirements. Establish which regime applies to you before doing anything else.
Choosing a legal form
- Sole trader, the simplest, with no separation between personal and business assets. Quick to set up and unlimited liability.
- SARL, the private limited company, the standard vehicle for a small or medium business, with a minimum capital requirement and limited liability.
- SARL-S, the simplified version, designed for start-ups, with a very low minimum capital and restrictions on who may use it.
- SA, the public limited company, for larger operations and where share transferability matters.
The choice is not only about capital. It affects liability, the tax treatment, the social security position of the manager, the accounting obligations and how the business is perceived by clients and banks. This is the point at which an accountant earns their fee.
The sequence
- Establish which permit or professional regime applies to your activity.
- Choose the legal form and, if a company, have the constitutional documents prepared, which for most forms means a notary.
- Apply for the business permit.
- Register with the Trade and Companies Register.
- Register for VAT with the registration authority, subject to the applicable thresholds and rules.
- Affiliate with the Centre commun de la sécurité sociale as self-employed or as a company manager.
- Open a business bank account, which requires the company documents and takes longer than people expect.
- Arrange insurance, including professional liability where the activity requires it.
The bank account is frequently the slowest step, because compliance requirements are substantial. Start it early rather than at the end.
Social security and tax for the self-employed
- Affiliation is compulsory and covers health, pension and long-term care, with contributions calculated on income and a minimum basis applying.
- The first year is estimated and adjusted afterwards, which produces a catch-up payment that surprises people. Budget for it.
- Income tax is assessed on business profit through the annual return, with advance payments set by the administration.
- VAT obligations depend on the activity and turnover, with a small-business exemption below a threshold.
- Accounting obligations scale with the legal form and the size of the business.
Set aside a proportion of every invoice from the first month. The commonest failure among new freelancers here is spending gross income and meeting the social security adjustment in year two.
Where to get help
- The House of Entrepreneurship, run with the Chamber of Commerce, is the single point of contact for anyone starting out and it is free.
- The Chamber of Commerce and the Chamber of Trades support their respective sectors and run training and qualification routes.
- Luxinnovation supports innovation-oriented businesses and access to funding.
- The House of Startups and the incubators in the capital and at Belval provide space, mentoring and networks.
- An accountant, from the beginning rather than at the first tax deadline.
- guichet.lu sets out the procedures authoritatively.
The honest assessment
What Luxembourg is good for: a small, accessible administration; a stable and predictable legal environment; a genuinely multilingual and highly qualified workforce; access to the whole European market; strong support structures for start-ups; and decision-makers who are physically reachable in a way they are not in a large country.
What it is not good for: a large domestic market, which is why almost every successful Luxembourg business is export-oriented from the start; low costs, since premises, salaries and services are expensive; and speed, since permits, banking and notarial steps all take longer than an optimistic plan allows.
Getting paid, and the cash flow question
The administrative side is documented and the commercial side is where new freelancers here actually run into trouble.
- Agree payment terms in writing before starting, including the period and what happens if it is exceeded.
- Invoice promptly and correctly. An invoice missing a required detail is an invoice that will be returned rather than paid.
- Expect corporate payment cycles of thirty to sixty days from large clients, and plan the first six months of cash flow around receiving nothing quickly.
- Set aside a proportion of every payment for social security and tax from the first invoice. The year-two adjustment is what catches people.
- Keep a genuine reserve. A single late-paying client should not be an emergency.
- Late payment interest is provided for in law and is worth stating in your terms, if only for the effect it has on how promptly you are treated.
- Professional liability insurance for anything advisory, and check whether clients require it before you win the work.
The businesses that fail here rarely fail for lack of clients. They fail because the founder spent gross income and met the social security adjustment without a reserve.
Three questions we are asked
Can I just invoice as a freelancer?
Not for most activities. The business permit regime covers a wide range of commercial and liberal work, and operating without the required authorisation carries consequences. Establish your position with the House of Entrepreneurship or guichet.lu before you start.
How long does it take?
Weeks to months depending on the activity, the legal form and how complete the file is. The permit and the bank account are the two steps that most often extend the timetable.
Do I need premises?
A fixed establishment appropriate to the activity is required, and what that means in practice depends on what you do. A consultant and a caterer face very different requirements. Working from a residential address may also engage the lease and the building's rules, so check both.
Where this fits
A business permit requires premises appropriate to the activity, and for a good number of our clients that means a small commercial or mixed-use space rather than a flat. Tell us what the activity is and we will tell you what is realistic.
A feature connected to the business permit should also survive a budget check. For the question raised by “The business permit”, the useful detail is not a generic list of advantages.
For the sequence, note what you can see, what you can measure, what you need to ask and what would be expensive to change. For the question raised by “The business permit”, the useful detail is not a generic list of advantages.
The final decision around choosing a legal form should be explainable in a few sentences. For the question raised by “Choosing a legal form”, the useful detail is not a generic list of advantages.
For social security and tax for the self-employed, note what you can see, what you can measure, what you need to ask and what would be expensive to change. For the question raised by “Choosing a legal form”, the useful detail is not a generic list of advantages.
A stronger reading of where to get help starts by asking what would change for the resident on an ordinary weekday.
Editorial note: Procedures, entitlements and providers in Luxembourg change, and individual situations vary. This article describes the general framework and is not professional advice. The State portal guichet.lu, your commune and the relevant administration are the authoritative sources for your own case.