The eCDF platform

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Summary:

The eCDF platform is used for all types of interim or annual financial data returns, such as VAT returns or annual financial statements.

Demande d’utilisation du système eCDF / Compte eCDF pour certificat LuxTrust professionnel avec contrôle "organizational unit" (OU)
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You are required to file financial data with the State on a regular basis.
The platform for electronic gathering of financial data (eCDF) can be used to:

  • prepare your data; and
  • validate your data electronically; and
  • file your data with the State online.

The eCDF platform is accessible at www.ecdf.lu.

The eCDF platform can be used for all types of interim and annual returns, such as:

All VAT returns and recapitulative statements for goods and services must be filed electronically using the eCDF platform.

When creating an eCDF account, you, the applicant (whether you are a natural or legal person), will have to:

  • select the type of account you wish to open. The type of account you choose will depend on the features you require (filings for you as the account holder, or for other users);
  • specify a primary user, i.e. the account administrator, who has control over the entire eCDF account. The account administrator must possess a digital certificate that is compatible with the type of eCDF account that is being applied for.

You can only have one account.

Who is concerned

Entities concerned

All self-employed natural persons and all legal persons who are liable for VAT must file the following documents electronically:

The eCDF account holder

You can apply to be the holder of an eCDF account:

  • if you are a legal or natural person, for:
    • a professional LuxTrust certificate; and
    • an eIDAS certificate;
  • for a private LuxTrust certificate, only if you are a natural person.

The account administrator

On the eCDF account application form, you must specify the account administrator.

That person must be the user with the LuxTrust/eIDAS certificate.

The eCDF account users

The eCDF account administrator can:

  • grant one or more of their business's employees access to the eCDF account; and
  • manage users directly through their account, without having to file another application for access with the eCDF administration.

Each eCDF account user / account administrator must possess:

  • a professional LuxTrust certificate containing exactly the same Organizational Unit (OU) identification number, if the eCDF account is for a professional LuxTrust certificate with verification of the 'OU'. Users cannot be added if they have a different 'OU' identification number; or
  • an eIDAS certificate or a private LuxTrust certificate with no restrictions or verification requirements, if the account is a private LuxTrust eCDF account or an eIDAS eCDF account.

How to proceed

Types of eCDF accounts

Professional LuxTrust eCDF accounts with verification of the Organizational Unit (OU)

Types of certificates

Both natural and legal persons can apply to open an eCDF account using a professional LuxTrust certificate, which enables authentication using:

  • a LuxTrust Smartcard Pro (professional smartcard); or
  • the LuxTrust mobile application; or
  • the LuxTrust Scan device.
Features

With this type of account, filings can be made for:

  • yourself, as the eCDF account holder;
  • other users.

This type of account is also intended for accounting firms as it can be used to file returns for their clients.

Means of authentication

The means of authentication must satisfy the following criteria:

  • the means of authentication must be a professional LuxTrust certificate;
  • for security purposes, the means of authentication must contain the business's Organizational Unit (OU) identification number (if it has one). This number must be one of the account holder's official Luxembourg identification numbers, i.e.:
    • their Luxembourg VAT number;
    • their RCSL number, i.e. their number in the Luxembourg Trade and Companies Register (Registre de commerce et des sociétés luxembourgeois – RCSL);
    • their 13-digit Luxembourg national identification number (Matricule);
  • all professional LuxTrust certificates that are subsequently attached to the eCDF account must contain exactly the same OU identification number as the one in the account administrator's (i.e. the primary user's) professional LuxTrust certificate.

When ordering a LuxTrust certificate, you will be required to specify your business's:

  • RCSL number; or
  • its Luxembourg VAT number.

The number you specify will be your Organizational Unit (OU) identification number.

This identification number must be specified when signing up for a LuxTrust product. It is up to the business to decide which Luxembourg identification number it wishes to use as its OU identification number.

Applicants that do not have a Luxembourg identification number – such as foreign accounting firms – but want to file returns on behalf of their customers should contact the eCDF Helpdesk. In this case, there is no need to apply for a Luxembourg national identification number (matricule).

If a professional LuxTrust certificate already exists, it is recommended that you use:

  • the OU identification number that appears on the existing certificate; or
  • the RCSL number.

When adding users to an eCDF account, the OU identification number that appears in each user's professional LuxTrust certificate must be identical to the one that appears on the account holder's professional LuxTrust certificate to ensure that all users are associated with the business they represent. All users of the same eCDF account must have the same OU identification number.

In practice:

  1. The primary eCDF account user – i.e. the eCDF account administrator – must record the eCDF account's OU identification number in their certificate; and
  2. all other users must specify the same OU identification number when ordering a LuxTrust product; otherwise, they cannot be attached to the eCDF account.

If need be, the holder of a professional LuxTrust certificate can find the OU identification number recorded in their certificate by using the test & print feature on the LuxTrust website.

eCDF accounts for private LuxTrust certificates

Types of certificates

Natural persons can apply to open an eCDF account with a private LuxTrust certificate, which enables authentication using:

  • a LuxTrust Smartcard Privé (private smartcard); or
  • the LuxTrust mobile application; or
  • the LuxTrust Scan device.

An eID card (electronic identity card) can also be used.

Features

With this type of account, filings can only be made for the account holder, i.e. yourself.

Means of authentication

You can authenticate your identity using a private LuxTrust certificate.

You are both the eCDF account holder and the eCDF account administrator.

eCDF accounts for eIDAS certificates

Types of certificates

Both natural and legal persons can apply to open an eCDF account with an eIDAS certificate.

eIDAS certificates are private certificates.

Features

With this type of account, filings can only be made for the account holder, i.e. yourself.

Means of authentication

Your eIDAS certificate will be used to authenticate your identity.

First-time applications for an eCDF account

To apply to open an eCDF account, you must fill out an online application form.

Supporting documents

eCDF accounts for professional LuxTrust certificates, with verification of the Organizational Unit (OU)

The following must be included in your application:

  • details of the eCDF account holder's professional LuxTrust certificate.
    A test report showing the status of your LuxTrust certificate can be created on www.luxtrust.com;
  • a copy of the ID card of each manager who signed the eCDF account application form.

eCDF accounts for private LuxTrust certificates

The following must be included in your application:

  • details of your private LuxTrust certificate.
    A test report showing the status of your LuxTrust certificate can be created on www.luxtrust.com;
  • a copy of your identity card.

The Luxembourg Government IT Centre (Centre des technologies de l’information de l’État – CTIE) may ask you to provide additional documents.

eCDF accounts for eIDAS certificates

The following must be included in your application:

  • a document containing all the details of the eCDF account administrator's eIDAS digital certificate. An eIDAS certificate test report can be created at https://eidas.services-publics.lu/cisie-sp/initAuthenticate;
  • a copy of the ID card of each manager who signed the application form.
  • if you have a VAT number:
    • the VAT form used to communicate your contact details (Communication de vos coordonnées). You can obtain this form from the Registration Duties, Estates and VAT Authority (Administration de l’Enregistrement, des Domaines et de la TVA – AED);
  • if you do not have a VAT number:
    • an extract from your business's Trade and Companies Register (Registre de commerce et des sociétés – RCS) confirming that the manager(s) specified in the form, and who signed the form, is/are authorised to sign documents on behalf of the business;
    • a delegation of authority to sign letter, if the application is signed by a person whose name does not appear in the business's extract from RCS;
    • a copy of the identity document of each manager who signed the application form.

The Luxembourg Government IT Centre (Centre des technologies de l’information de l’État – CTIE) may ask you to provide additional documents.

eCDF account activation email

The eCDF account user/administrator specified in the application will receive an email from usermanagement@security.public.lu containing a link to activate the eCDF account. The user must click on the link contained in the email to finalise the creation of their eCDF account and their access rights.

You must click on this link to be able to access the eCDF platform.

Online services and forms

Online services

Request for use of the eCDF System/eCDF account for a professional LuxTrust certificate with "organizational unit" (OU) verification

Other language(s)

Request for use of the eCDF System/eCDF account for private LuxTrust certificate

Other language(s)

Request for use of the eCDF System/eCDF account for an eIDAS certificate

Other language(s)

Who to contact

Government IT Centre (CTIE) eCDF Helpdesk

Address:
560, rue de Neudorf L-2220 Luxembourg Luxembourg
B.P. 1111, L-1011 Luxembourg
Email address:
ecdf@ctie.etat.lu

Related procedures and links

Procedures

Links

Further information

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