Free online tool for LuxembourgCheck Luxembourg VAT ID
Validate Luxembourg VAT IDs (VAT ID / numéro TVA / Luxembourg VAT) online in seconds. Simple validity check or qualified request with PDF audit report — free and without registration. Required for all intra-community supplies to or from Luxembourg (2026).
Check Luxembourg VAT ID
Enter the Luxembourg VAT ID to be checked. Luxembourg is pre-selected.
Legal Basis for Luxembourg VAT ID Validation
Validation follows national tax law and EU directive.
Luxembourg VAT Act (Loi TVA 1979)
The Luxembourg VAT Act (Loi TVA du 12 février 1979) Art. 43 regulates tax-free intra-community supplies based on TVA verification.
Proof Requirement
Suppliers must prove the validity of the TVA number and the shipment.
Archival
The retention period in Luxembourg is 10 years.
EU Basis
Art. 31 Reg. (EU) 904/2010 governs the VIES system (VAT Information Exchange System) as the official EU interface for cross-border VAT ID verification. Directive 2006/112/EC provides the harmonised EU basis for the common VAT system.
Frequently Asked Questions
Answers to the most important questions about the Luxembourg VAT ID.
What terms are used for the Luxembourg VAT ID?
The Luxembourg VAT identification number is known by several names: VAT ID, numéro TVA, Luxembourg VAT. Also referred to as VAT number LU or Luxembourg VAT ID. All terms refer to the same number registered in the EU VIES system.
What is the difference between VAT ID, tax number (Steuernummer) and MwSt number?
The VAT ID (also known as USt-IdNr., UID, UStID, MwSt-Nummer, VAT Number) is the VAT identification number for the EU single market — with country code (LU) and verifiable via the VIES system. The tax number (Steuernummer) is a purely national identifier issued by the local tax office and has no relevance for cross-border trade. "Umsatzsteuer-Nummer" is often used synonymously but technically means the VAT ID. The terms "MwSt-Nummer" and "Mehrwertsteuer-Nummer" refer to the same number — only the label differs.
What is the format of an Luxembourg VAT ID?
The Luxembourg VAT ID consists of the country code LU followed by the national number structure, e.g. LU12345678. It is issued by the national tax authority (Luxembourg VAT and Registration Authority) and registered in the EU VIES system.
When do I need to verify an Luxembourg VAT ID?
VAT ID verification is required for: intra-community supplies to or from Luxembourg, cross-border B2B services, tax-exempt invoicing to Luxembourg business partners, and as good-faith proof during tax audits. The consultation number from a qualified check is a legally binding record.
How is an Luxembourg VAT ID applied for?
Applications are submitted to the Luxembourg VAT and Registration Authority via the online portal pfi.public.lu. Issuance is usually free of charge; processing typically takes 1-4 weeks. Companies without a Luxembourg establishment can register for tax purposes and obtain a VAT number.
What VAT rates apply in Luxembourg in 2026?
In 2026, Luxembourg applies a standard rate of 17 %. Additionally, reduced rates of 14 %, 8 %, 3 % apply. Source: European Commission, as of 2026-04-17.
How does the Docuflair audit report differ from national portals and VIES?
The Docuflair tool uses the official VIES interface and additionally provides a cryptographically secured PDF audit report with SHA256 hash — as integrity proof for later tax audits. National portals typically only support domestic applicants; the EU VIES system provides only a basic browser view without a qualified report. Docuflair works for all 27 EU countries including Luxembourg.
How long must VAT ID verification documents be retained in Luxembourg?
The retention period in Luxembourg is 10 years.
Also check for other EU countries
Your business partners are in other EU states? Docuflair supports all 27 countries.
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For companies with high verification volume, Docuflair offers professional VAT-Check software with bulk processing, API integration and CRM integration.