Your partner for successful business management
GSL is your trusted partner in Luxembourg for all your needs in accounting, tax consulting, personnel management, and corporate auditing. Whether you are a medium or large-sized business in the industry, crafts, or trade sector, a freelance intellectual worker, or an individual, we are committed to supporting you at every stage and providing high-quality services tailored to your specific needs.
Your partner for successful business management
GSL is your trusted partner in Luxembourg for all your needs in accounting, tax consulting, personnel management, and corporate auditing. Whether you are a medium or large-sized business in the industry, crafts, or trade sector, a freelance intellectual worker, or an individual, we are committed to supporting you at every stage and providing high-quality services tailored to your specific needs.
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Our services.
fiduciaire
Confidently manage your administrative challenges and make informed decisions. From accounting and tax advice to payroll services, our experts support you at every step.
révision
Whether it’s a legal, contractual audit or special assignment, our dedicated team is here to ensure transparency and compliance.
management
Whether you need a commissaire aux comptes, an administrator, or a liquidator, our management experts provide strategic support to ensure the smooth operation and development of your business.
Our services.
fiduciaire
Confidently manage your administrative challenges and make informed decisions. From accounting and tax advice to payroll services, our experts support you at every step.
find out more >
révision
Whether it’s a legal, contractual audit or special assignment, our dedicated team is here to ensure transparency and compliance.
find out more >
management
Whether you need a commissaire aux comptes, an administrator, or a liquidator, our management experts provide strategic support to ensure the smooth operation and development of your business.
contact us >
Your strategic partner.
Support at every step
Your journey is unique, and we are here to guide you at every step. Whether it’s planning, managing, or achieving goals, we commit to being the partner you can rely on.
Tailored solutions for your evolving needs
We evolve with your needs. Our proactive approach ensures that you always benefit from the most suitable, innovative, and effective solutions for your specific challenges.
A multilingual team
Benefit from our multilingual expertise! We fluently speak six languages to meet your individual needs and facilitate your business smoothly.
Value-added advice
We prioritize transparency over complacency, providing clear and constructive advice that will guide you forward.
Our satisfied customers.
J.W.
A professional and dynamic team. Attentive to the client. Completely satisfied with the service. Highly recommended without hesitation.
T.S.
The professionalism one expects.
A.M.
Exceptional service, always meeting our expectations. The team is very competent and responsive.
Our latest news.
Insights for managing your business activities.
Setting up a business in Luxembourg: choosing the right vehicle and securing the business permit
Hesitating between a sole proprietorship, Sàrl/Sàrl‑S, SA, SAS or SCS/SCSp? Below is a concise roadmap to select the right vehicle, understand when a business permit is required, and complete the registration, tax [...]
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Non-profit organisations: bring your articles of association and accounting into compliance
GSL Fiduciaire supports you — and equips you with Odoo Parliamentary news reminds us that the law of 7 August 2023 has been fully applicable to all associations and foundations since 24 [...]
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Towards a Simpler Tax? The Single Tax Scale in Luxembourg in Perspective
Context and Government Direction The 2023–2028 coalition (CSV-DP) has committed to modernizing the taxation of individuals by working towards a single tax class and presenting a structural reform in 2026, with the [...]
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