What are the statutory trading disclosure and publication requirements for private companies?
Limited liability companies and partnership limited by shares must reproduce on their letterhead, invoices or any document issued by them the following information:
Form of the company (SA, S.à r.l., SCA, etc.)
Luxembourg Trade and Companies Registry number
Where companies are providing services or selling goods and are registered for VAT purposes, they must add their VAT number on their documentation.
How do companies execute contracts or deeds?
A contract executed by a company will be validly binding on the company if it has been signed by its directors or authorised representatives, in accordance with the company’s articles of incorporation and/or the Company Law.
There is no other formality required under Luxembourg law (such as witnesses required for common law deeds).