Fiduciary accounting firm in Luxembourg, authorised, premium, multilingual.
Financial Services Luxembourg is an authorised fiduciary accounting firm in the Grand Duchy (authorisation 10077274), supervised by the AED. A fiduciary orchestrates accounting, tax, structuring and compliance between the entrepreneur and the Luxembourg ecosystem. We cover company formation, SOPARFI, payroll, substance and fund services.
A Luxembourg fiduciary is an authorised firm that handles, on behalf of its clients, the accounting, tax and social obligations, domiciliation and governance of Luxembourg entities. FSL holds authorisations 10077274/2 (fiduciary) and 10077274/0 (accounting).
Business licenses 10077274/2 (fiduciary) and 10077274/0 (accounting), issued by the Ministry of the Economy and supervised by the AED; AML framework, law of 12 November 2004. Authorisation publicly verifiable on guichet.public.lu.
Key takeaway
- FSL is an authorised fiduciary accounting firm (10077274), supervised by the AED, verifiable on guichet.public.lu.
- One fiduciary for accounting, tax, structuring and compliance.
- 17 years of experience, 9 languages, fixed fee and quote within 48 hours.
What is a fiduciary in Luxembourg?
A fiduciary is an authorised firm that handles accounting, tax, payroll, domiciliation and governance of Luxembourg entities on its clients' behalf. It is the operational interface between the company and the authorities: ACD (direct taxes), AED (registration and VAT), RCS (register) and CCSS (social security).
Fiduciary activity requires a business licence and supervision. FSL holds authorisations 10077274/2 (fiduciary) and 10077274/0 (accounting), supervised by the AED and publicly verifiable on guichet.public.lu.
Fiduciary, accountant, chartered accountant: who does what?
The fiduciary is the authorised structure delivering the full range of services. "Accountant" describes the bookkeeping function. The "chartered accountant" (expert-comptable) is a regulated title held under the Ordre des Experts-Comptables (OEC).
FSL is a licensed accounting fiduciary; for engagements that specifically require the chartered-accountant title or a statutory audit by an approved auditor, we work with the duly qualified professionals. You keep a single point of contact.
What does a fiduciary handle?
The scope covers LuxGAAP bookkeeping, annual accounts and RCS filing, VAT, corporate and personal tax, payroll and CCSS filings, domiciliation and registered office, directorship and substance, and compliance (AML/KYC, DAC6, CRS/FATCA).
Beyond execution, a good fiduciary adds advice: structure choice, controlled optimisation, preparation of financing, an acquisition or a sale, from formation to consolidation.
Why choose a licensed, supervised fiduciary?
Licensing and supervision guarantee an ethical framework, an AML/KYC obligation and professional liability. For an international or wealth client base, it is a mark of security, and a criterion banks look at on onboarding.
Always check your provider's authorisation: ours (10077274) is verifiable in one scan on guichet.public.lu.
How to choose your fiduciary in Luxembourg
Four criteria: licensing and supervision, breadth of competence (accounting, tax, funds, directorship), responsiveness and pricing transparency (readable package, fast quote), and the ability to support international work (languages, tax treaties, substance).
Switching fiduciary is simple: file audit, history recovery, seamless VAT and payroll handover, first reporting by the 15th of the following month.
An AI-augmented fiduciary
We combine a licensed fiduciary with AI-assisted workflows (automated collection, OCR entry, intelligent bank reconciliation). Automation makes execution reliable and fast; decisions and advice stay human, supervised and signed.
The result: accounts filed on time, clear visibility on your numbers and a controlled cost.
Who this is for
- Entrepreneurs and SMEs seeking a fiduciary accounting firm in Luxembourg
- Holdings, SOPARFIs and international investors
- Family offices and clients requiring a premium standard
- Foreign companies setting up a Luxembourg subsidiary
What our fiduciary does
- Accounting, annual accounts and eCDF filing (Lux GAAP, IFRS)
- Tax: CIT, MBT, NWT, VAT, transfer pricing
- Company formation, SOPARFI, holding, domiciliation
- Payroll, CCSS, substance and directorship
- Fund services and ecosystem coordination
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Frequently asked questions
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Difference between a fiduciary and a chartered accountant?
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