Approval process of additional sub-fund(s) to an existing investment fund

1. Submission of the request and acknowledgement of receipt

A specific application questionnaire to provide the CSSF with any relevant information for the examination of the application for approval of new sub-fund(s) is available on the CSSF website under "Forms".


Any application file is constituted of the duly completed application questionnaire and of the appended documents and must be submitted in one pile:

  • via e-file (a secured and tailored tool to exchange information with the CSSF - further information is available on the right) or
  • via email to setup.uci@cssf.lu.

Applicants are expected to file an application only once all constituents of the project are fully fixed and stable. The transmission of a partial (incomplete) application may prevent the start of the approval process and cause unexpected delays.


The CSSF will acknowledge receipt of the application file within 2 working days and provide the name of the responsible officer in charge of the examination of the application file by means of:

  • an automated reply message from e-file (if this feature has been activated by the user, otherwise the information is viewable in the tool) or
  • an email at the address of the contact person provided in the application questionnaire.

2. Exchange of comments

The CSSF seeks to contact the applicant within 10 working days after receiving the application file for feedback (request for further information and/or supportive documents, supplementary confirmations, precisions on some aspects of the request, ...).


Complementary information or documents must be submitted through the communication channel used in step 1. The exchange of comments may be subject to reiteration until satisfactory completion of the examination phase.


In case the applicant faces difficulties to provide further information on specific considerations of the application and does not provide the information requested by the CSSF within a reasonable time limit not exceeding 1 month for a UCITS and 2 months for a UCI, a SIF or a SICAR, the CSSF will contact the applicant to ask whether the application is to be continued or withdrawn.


3. Addition of the approved sub-fund(s) to the official list

Upon satisfactory receipt of the prospectus / offering document, the CSSF will proceed to the addition of the approved sub-fund(s) to the official list.


In parallel, the CSSF issues an official accreditation letter sent electronically by email, as well as the CSSF identification codes of the sub-fund(s) approved.


The CSSF sends back the visa stamped prospectus / offering document. This is made via e-file within 5 working days after reception by the CSSF for UCITS, UCI and SIF (electronical visa), and via physical mail for the SICAR (manual visa).


The CSSF also issues the related UCITS attestations in electronic form. A successful completion of the approval of additional sub-fund(s) of an existing UCITS and the notification of the UCITS for marketing its shares/units in another EU Member State are distinct processes. If a UCITS intends to market its units in another EU Member State, it must follow the specific notification procedures.


If you need to contact the head of the division or the CSSF officer in connection with the application under review, you should refer to the instructions under "Contact the department".