
Your audit firm.
In the face of the dynamic challenges of the business sector, a thorough and transparent audit becomes a key asset in strengthening stakeholder trust and meeting regulatory standards. At GSL, our audit experts combine deep expertise and specific industry knowledge with a pragmatic approach, ensuring the accuracy and reliability of your financial reports.
Our audit expertise.
Legal or contractual audit
Ensure an accurate representation of your financial situation. Our audit team provides a comprehensive legal or contractual review, offering a faithful and transparent picture of your finances.
Special engagements
We focus on tasks such as internal process audits, risk management evaluation, regulatory compliance, and investigation of potential frauds, thus providing in-depth analyses tailored to your unique needs.

Reliable and comprehensive audit for your business.
With over 15 years of experience, our experts audit your accounts to ensure a true and fair representation of your financial statements. We plan our missions accordingly, providing recommendations to prevent potential future risks, thus offering you the opportunity to move forward in your sector with confidence and credibility.
Our latest news.
Insights for managing your business activities.
New chapter for GSL
Since June 24th, 2024, Luc Schmitt has assumed sole leadership of GSL Fiduciaire.He continues to grow the group with integrity, team spirit, and a sense of innovation – values that remain at [...]
More InformationsTax Reform 2025 in Luxembourg: What Changes for You
In 2025, Luxembourg will implement a major tax reform, introducing adjustments to income tax, relief for businesses, and measures benefiting young workers. These changes aim to reduce the tax burden, modernize taxation, [...]
More InformationsWhat Are the Risks for a Company That Fails to Meet Its Audit Obligations?
The statutory audit of financial statements is a legal requirement for certain companies in Luxembourg, in accordance with current legislation. Its purpose is to ensure financial transparency, the reliability of accounts, and [...]
More InformationsWho we are
Meet the GSL team – dedicated professionals, here to guide you simply and effectively through your accounting and tax challenges.