Filing Mechanisms in Luxembourg: eCDF, MyGuichet, and the Luxembourg Business Register

Filing with the Luxembourg Business Register (LBR) is a legal requirement for companies operating in the Grand Duchy, ensuring transparency, regulatory compliance, and the public availability of essential financial information.
Through platforms such as eCDF (electronic Common Data Filing) and MyGuichet.lu, businesses can submit annual accounts, balance sheets, profit and loss statements, and other corporate documents efficiently and securely.

Filing with the Luxembourg Business Register (LBR)

The Luxembourg Business Register serves as the nation’s official repository of corporate information, collecting, verifying, and publishing key data about companies.
Its primary purposes include:

  • Ensuring legal transparency for all registered entities.

  • Facilitating regulatory compliance by requiring timely submission of financial statements.

  • Providing stakeholders (investors, partners, creditors) with reliable, up-to-date company information.

Common filings with the LBR include:

  • Annual financial statements (balance sheet, profit and loss account).

  • Management reports and auditor’s reports, when required.

  • Amendments to company statutes and registration details.

By making this data public, the LBR supports a trustworthy commercial environment and strengthens corporate governance in Luxembourg.

eCDF: Electronic Common Data Filing

eCDF is Luxembourg’s secure online filing system that allows companies to submit financial statements and other corporate documents directly to the LBR.
Key benefits include:

  • Convenience – Accessible 24/7 from any location.

  • Security – Protected by LuxTrust authentication.

  • Efficiency – Reduces paper usage and processing delays.

Typical use cases:

  • Depositing annual accounts for all company types (SA, SARL, SARL-S, etc.).

  • Submitting consolidated accounts for group entities.

  • Uploading audit reports and supplementary documentation.


"Our expert team provides a complete Luxembourg RCS filing service, including Filing Luxembourg Business Register submissions, eCDF filing Luxembourg, and MyGuichet filing Luxembourg, ensuring timely deposit of annual accounts Luxembourg with accurate profit and loss statements Luxembourg and balance sheets Luxembourg, delivering fully compliant legal document filing Luxembourg for your business." Mickaël LOC Managing Director Financial Services Accountant Luxembourg


MyGuichet.lu: Multi-Service Filing Portal

MyGuichet.lu is a digital platform managed by the Luxembourg government that enables businesses and individuals to handle multiple administrative formalities online.
It can be used for:

  • Filing VAT returns.

  • Managing tax obligations.

  • Accessing company data linked to the LBR.

With integrated secure messaging and document upload capabilities, MyGuichet.lu helps streamline administrative interactions between companies and public authorities.

Understanding Key Financial Documents

Profit and Loss Statement

A profit and loss statement (income statement) summarises a company’s financial performance over a defined period by comparing revenue to expenses.
It shows whether the company achieved a net profit or incurred a net loss and is essential for:

  • Assessing operational efficiency.

  • Measuring profitability trends.

  • Supporting investment and lending decisions.

Balance Sheet

A balance sheet provides a snapshot of a company’s financial position at a specific date, detailing assets, liabilities, and shareholders’ equity.
Its structure:

  • Assets: What the company owns (cash, receivables, property).

  • Liabilities: What the company owes (debts, payables).

  • Equity: The residual interest after debts are settled.

By comparing these elements, stakeholders can evaluate the company’s financial stability, liquidity, and growth potential.

Filing LBR (Example: RCS),Simplifying Compliance

Our Filing LBR service offers a streamlined, secure, and user-friendly way to manage corporate filings and stay compliant with Luxembourg regulations.

Features include:

  • Document organisation: Centralised storage for all filings.

  • Robust search tools: Quickly retrieve past submissions.

  • Secure storage: Protects sensitive financial data.

  • Collaboration features: Facilitates teamwork between company officers, accountants, and legal advisors.

By using our platform, companies reduce their administrative formalities, minimise errors, and maintain full compliance with filing requirements.

Expert Advice

"In Luxembourg, timely and accurate filing with the LBR via eCDF or MyGuichet is not just a legal obligation, it’s a key part of building trust with partners and investors. Accurate balance sheets and profit and loss statements are the foundation of transparent corporate governance." Mickaël LOC Licensed Accountant, Luxembourg