Official FAIA v2.01 Sources
All validation rules and schemas are sourced directly from Luxembourg's tax authority
Verified Against Official Standards
Our validator uses the exact XSD schemas and technical specifications published by Luxembourg's Administration de l'Enregistrement, des Domaines et de la TVA (AED) at pfi.public.lu.
Important: FAIA v2.01 has remained unchanged since 31 January 2013. This stability ensures long-term compliance and reliable validation. Our validator was verified against these official sources in November 2025.
Official Luxembourg AED Resources
Access the authoritative FAIA v2.01 documentation and schema files directly from Luxembourg's tax authority:
Resource Descriptions
AED Official FAIA Page
The main portal for FAIA information on pfi.public.lu, containing official announcements, requirements, and links to all technical resources.
Technical Recommendations PDF
Comprehensive technical documentation explaining FAIA file structure, required elements, business rules, validation requirements, and best practices (French).
Official FAQ PDF
Frequently asked questions addressing common implementation challenges, clarifications on requirements, and practical guidance for generating FAIA files.
XSD Schema Files
The three official XML Schema Definition (XSD) files that define the exact structure and validation rules for FAIA files:
- FAIA_v_2.01_full.xsd – Full version with all 12 MasterFiles tables and complete transaction data
- FAIA_v_2.01_reduced_version_A.xsd – Simplified schema for smaller businesses
- FAIA_v_2.01_reduced_version_B.xsd – Alternative reduced schema variant
Verification Status
Our validation engine was last verified against these official sources in November 2025. All XSD schemas, business rules, and validation logic match the official Luxembourg AED specifications published on 31 January 2013.
Next verification: We continuously monitor pfi.public.lu for any updates or changes to FAIA specifications. As of November 2025, FAIA v2.01 remains the current standard with no changes since 2013.