Accountant in Luxembourg: your fiduciary, from entry to filing.
An accountant in Luxembourg keeps your books in LuxGAAP, prepares your annual accounts, files them with the RCS and secures your tax and social obligations. As a licensed accountant, we cover the full cycle, from daily entry to filed accounts, with a single point of contact.
In Luxembourg, the accountant (or fiduciary) keeps a company's books under the standard chart of accounts and LuxGAAP, prepares the balance sheet and profit-and-loss account, files the annual accounts with the Trade and Companies Register (RCS) and assists with VAT, tax and payroll. The chartered-accountant title is overseen by the Ordre des Experts-Comptables (OEC).
Reviewed by Mickaël LOCManaging Director · Licensed accountant 10077274 · Updated 2026ProfileLinkedIn
Legal basis
Accounting obligations governed by the amended law of 19 December 2002 on the trade and companies register, accounting and annual accounts, and by the Commercial Code. Accounts are filed with the RCS via the eCDF platform.
Key takeaway
Every Luxembourg commercial company keeps double-entry books and retains records for 10 years.
Annual accounts are approved within 6 months of year-end, then filed with the RCS within one month, i.e. 7 months after closing.
An approved statutory auditor is required above 2 of the 3 thresholds (balance sheet EUR 7.5m, net turnover EUR 15m, 50 employees) over two years.
Accountant fees range from EUR 70 to 300/h depending on complexity; monthly packages are available.
What does an accountant do in Luxembourg?
A Luxembourg accountant's role goes well beyond data entry. Day to day, they record transactions in double-entry, reconcile bank accounts, track receivables and payables, and prepare VAT returns. At year-end, they prepare the balance sheet, profit-and-loss account and notes, then file the annual accounts with the RCS within the legal deadline.
Beyond bookkeeping, a full-service fiduciary handles tax (corporate income tax, municipal business tax, net wealth tax), payroll services in Luxembourg and CCSS filings, and advisory: structure selection, optimisation, financing or sale preparation. This continuity, from entry to advice, is what sets a true partner apart from a data-entry provider.
Accountant, chartered accountant, fiduciary, auditor: the differences
"Accountant" describes the bookkeeping function. The "chartered accountant" (expert-comptable) is a regulated title, overseen by the OEC. The "fiduciary" is the firm that bundles these skills and delivers accounting, tax, payroll and domiciliation services.
The "approved statutory auditor" (réviseur d'entreprises agréé) performs the statutory audit: this is separate from bookkeeping and becomes mandatory above certain thresholds. A company cannot entrust both bookkeeping and the statutory audit to the same provider, that is the audit-independence principle.
Your accounting obligations in Luxembourg
Commercial companies must keep regular double-entry books, record all transactions chronologically and without delay, and prepare annual accounts (balance sheet, profit-and-loss account, notes). Supporting documents and books are retained for ten years.
Concerned: sole traders, commercial companies (SARL, SA, SENC, SCS, SCA, cooperative, SE), branches of foreign companies, EIGs and EEIGs, and certain ASBLs and foundations depending on size. Precise obligations vary by legal form, size and sector.
LuxGAAP and the standard chart of accounts
Luxembourg accounting relies on the standard chart of accounts (PCN) and the LuxGAAP framework. Groups may, under conditions, opt for IFRS, particularly when consolidating or raising funds internationally. The framework choice affects presentation, measurement and comparability of the financial statements.
We work in LuxGAAP by default and support conversions or restatements to IFRS when the group structure requires it, in coordination with consolidation.
Filing annual accounts: deadlines and penalties
Annual accounts must be approved by the general meeting within six months of year-end, then filed with the Trade and Companies Register within one month of approval, in practice, within seven months of the closing date. Filing is electronic, via the eCDF platform.
Late or missing filings expose the company to surcharges and administrative penalties. Our role is to anticipate the closing calendar, secure the entries upstream and guarantee on-time filing, "zero delay, zero penalty".
When is an approved statutory auditor required?
A statutory audit by an approved auditor becomes mandatory when a company exceeds, over two consecutive years, at least two of three thresholds: balance-sheet total of EUR 7.5 million, net turnover of EUR 15 million, and 50 employees on average. Below that, depending on its form, the company may appoint a commissaire (non-approved control).
We assess your situation case by case and, where relevant, coordinate the auditor's work, while staying strictly on bookkeeping and advisory to preserve audit independence.
What makes accounting fees vary in Luxembourg?
Four variables drive most of the budget. Entry volume first: the number of purchase invoices, sales invoices and bank movements to process each month. Then the VAT regime, since a monthly return with intra-Community supplies and a recapitulative statement is not the same work as a domestic quarterly filing. Then headcount, as each payslip adds a CCSS filing and withholding follow-up. And finally the consolidation perimeter, as soon as the group holds several entities. At comparable balance-sheet size, a trading SARL with 80 invoices a month and a holding SOPARFI do not belong in the same package.
Two factors weigh more than most expect. The quality of the documents you send drives reprocessing time: a file that arrives scanned, named and reconciled costs structurally less than one delivered loose. And the closing date matters, a 31 December year-end concentrating the workload on the tightest period of the year. We price these variables during a short scoping call, then issue a firm quote with no hidden costs. Package detail by profile is set out on the accounting fees in Luxembourg page.
How to choose, and switch, accountant
A good accounting partner combines licensing and competence (licensed accountant, LuxGAAP/tax expertise), responsiveness (a dedicated contact), pricing transparency and advisory beyond entry. Your international footprint, consolidation or directorship needs also matter.
Switching accountant in Luxembourg is simpler than most think: file audit, data recovery from the outgoing provider, VAT and payroll handover without a gap, first reporting by the 15th of the following month. Confidentiality is contractual and traceability complete.
Our approach: an AI-augmented fiduciary
We combine the expertise of a licensed accountant (auth. 10077274) with AI-assisted workflows: automated collection, OCR entry, intelligent bank reconciliation. Automation frees time for what matters, decisions and advice, which stay human, supervised and signed.
Concretely, you get reliable, on-time accounts, clear visibility on your numbers, and a single point of contact from formation to consolidation.
Odoo accountant in Luxembourg: software, integrator and bookkeeping
Odoo is a business-management software (ERP) with an accounting module. We operate it for you in Luxembourg: setup, standard chart of accounts, VAT, invoicing and bank reconciliation, then keep your accounts directly inside Odoo, with fiduciary administrator access.
The difference with an Odoo integrator is clear: an integrator configures the tool then steps away, whereas a fiduciary configures Odoo and keeps the accounts inside it, continuously and compliantly. You are not buying an IT project, but accounting delivered inside your software.
We also support useful automation: electronic invoicing, overdue-invoice reminders and cash dashboards, without ever locking your access or your data.
Accountant, chartered accountant and auditor: who does what?
Accountant / fiduciary
Chartered accountant (OEC)
Approved statutory auditor
Main role
Bookkeeping, accounts, VAT, payroll
Regulated accounting & tax work
Statutory audit of accounts
Regulated title
No (function)
Yes (OEC)
Yes (approved)
Mandatory
Recommended
Per engagement
Above 2 of 3 thresholds
Independent of bookkeeping
No (does the bookkeeping)
No (can keep the books)
Yes (separate, for independence)
Who this is for
Entrepreneurs and self-employed starting or scaling
Luxembourg SMEs seeking a readable monthly package
Holdings, SOPARFI and groups needing consolidation
Foreign companies and international investors
What we do
LuxGAAP bookkeeping and reconciliations
Annual accounts, balance sheet and RCS filing (eCDF)
VAT, taxes (CIT, MBT, NWT) and payroll/CCSS
Consolidation, reporting and advisory (outsourced CFO)
A free first call within 24 hours, with a dedicated contact. NDA from first contact.
Are you an accounting firm or a chartered accountant in Luxembourg?
Financial Services Luxembourg is a licensed accounting firm (fiduciary, auth. 10077274) in Luxembourg, subject to AED supervision for AML/CFT purposes. We handle bookkeeping, annual accounts, VAT, payroll and advisory, services comparable to a chartered accountant's, at transparent rates. The expert-comptable (chartered accountant) title is reserved for members of the Ordre des Experts-Comptables (OEC); we coordinate an OEC chartered accountant when your file requires it (e.g. reserved attestations).
Is an accountant mandatory in Luxembourg?
Keeping regular accounts is mandatory for commercial companies. Using a fiduciary is not legally required for all, but quickly becomes essential as the business grows or structures (SARL, SOPARFI).
What is the deadline to file annual accounts?
Approval by the general meeting within 6 months of year-end, then filing with the RCS within one month, i.e. 7 months after closing. Filing is via eCDF. Late filing triggers penalties.
When is an approved statutory auditor required?
When the company exceeds, over two consecutive years, two of three thresholds: balance sheet EUR 7.5m, net turnover EUR 15m, 50 employees. Below that, a commissaire may suffice depending on the legal form.
What makes accounting fees vary in Luxembourg?
Four variables: monthly entry volume, the VAT regime (monthly or quarterly, intra-Community or domestic), payslip headcount and the consolidation perimeter. Document quality and the closing date also matter. Package detail is set out on our accounting fees page.
Can I switch accountant mid-year?
Yes. We audit the file, recover data from the outgoing provider and take over VAT and payroll seamlessly, with first reporting by the 15th of the following month.
Which documents do we send you each month?
Purchase and sales invoices, bank statements, expense claims and payroll supporting documents. Uploading continuously to the client portal, rather than sending everything at quarter-end, shortens production time and reduces reprocessing cost.
Do you take over accounts that are late or incomplete?
Yes. We first establish a status report of unclosed financial years and missing filings, then a costed catch-up plan prioritised on the deadlines most exposed to penalties: RCS filing, VAT and CCSS.
