Route: Sources
Sources & references
The items below are the references used to write and maintain this content. Access dates are provided.
European Union references
- European Commission: VAT information and administrative context. Accessed: 2026-01-19
- VIES (VAT Information Exchange System): official EU VAT number checking service (reference only). Accessed: 2026-01-19
National tax administration references
- Portugal (AT): VAT / NIF context and guidance. Accessed: 2026-01-19
- France (DGFiP): VAT number context and documentation. Accessed: 2026-01-19
- Germany (BZSt): VAT ID context and documentation. Accessed: 2026-01-19
Notes on usage
This site does not reproduce official databases. It only explains terms and structure and points to official sources.