Glossary

Page's last update : 31 Apr 2026

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A

ACD

The Administration des Contributions Directes The Luxembourg Tax authority.

This is the recipient of CRS and FATCA reporting

B

FATCA

The Central Bank of Luxembourg (BCL) is Luxembourg’s monetary authority and a member of the Eurosystem and the European System of Central Banks.

C

CSSF

The Commission de Surveillance du Secteur Financier is a public institution which supervises the professionals and products of the Luxembourg financial sector.

CRS

The Common Reporting Standard (CRS) is a global regulation developed by the OECD for the automatic exchange of financial account information between countries to combat tax evasion. It requires financial institutions to identify foreign tax residents and report their financial account details to local tax authorities, who then share this data internationally.

F

FATCA

FATCA (Foreign Account Tax Compliance Act) is a US law requiring foreign financial institutions, including those in Luxembourg, to report information about financial accounts held by U.S. persons to local tax authorities (ACD - Administration des contributions directes). The ACD then automatically exchanges this data with the US IRS to prevent tax evasion.