Chartered accounting firm. Accounting, tax, payroll and company formation for SMEs and entrepreneurs.

Our Expertise at Your Service

Fiduciaire Expert, your trusted partner in Luxembourg

20+ Years of accounting expertise
OEC Licensed Order of Chartered Accountants
48h Guaranteed response

OEC licensed member in Luxembourg

Quality guarantee and compliance with the strictest professional standards of the Order of Chartered Accountants.

Luxembourg tax expert

Complete mastery of CIT, MBT, NWT and VAT and legal tax optimization for SMEs and holding companies.

Personalized SME support

A dedicated chartered accountant who knows your sector and responds within 48h to all your questions.

Our Team

Passionate experts, united by excellence

Marc Dubois

Chartered Accountant and Tax Advisor, Founder

Founder and tax advisor of Fiduciaire Expert, Marc has an exceptionally broad background: Big Four, international law firms, investment funds and fiduciaries. This unique experience enables him to deliver high value-added tax advice and tailored optimization strategies.

Sophie Bernard

Co-Founder

Co-founder and Luxembourg GAAP and IFRS expert, Sophie brings over 20 years of experience gained in international companies, ensuring accounting compliance with both Luxembourg and international standards.

They trust us

Our clients' testimonials reflect our commitment to quality

"Fiduciaire Expert has been supporting us for a long time. Their expertise in the Luxembourg market is remarkable. Creation of our holding in a few weeks!"
M. Laurent
CEO TechLux Solutions
"Exceptional tax advice and support: we had immediate results. The team is responsive and always provides good advice. I highly recommend."
P. Schmitt
CFO Finance Partners

Frequently asked questions

Answers to the most common questions about our firm

What accounting services do you offer? +

We offer a complete range of services: bookkeeping, preparation of annual accounts, CIT/MBT/NWT and VAT tax returns, payroll and CCSS social charges management, company formation and domiciliation.

What are your professional qualifications? +

Our experts hold degrees in chartered accounting and taxation. We are members of the Luxembourg Order of Chartered Accountants (OECL) and strictly adhere to the profession's ethical standards.

What types of companies do you support? +

We mainly support SMEs, startups and individual entrepreneurs established in Luxembourg. Our expertise covers all business sectors, with a specialization in SARL, SA and SOPARFI structures.

How does the first consultation work? +

The first consultation allows us to analyze your specific needs. We examine your accounting and tax situation, then establish a detailed and transparent quote for our services.

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