ESMA has published a final report outlining a unified EU framework for investment fund reporting, titled Final Report on the Integrated Collection of Funds’ Data (ESMA12-2121844265-5150). This report aims to streamline data collection processes across the EU. View the document on the ESMA website.
The big picture is that EU UCITS funds, which have until now largely escaped the need for detailed reporting, will have to report along the lines of the complex “AIFMD Annex IV” reporting framework used for alternative investment funds (AIFs).
There will also be a reasonably significant impact on the current AIFMD Annex IV reporting requirements.
What Is Changing?
Some of the key changes to expect, as compared to current AIFMD Annex IV reporting, include:
- More “security‐by‐security” reporting across key dimensions
- More granular portfolio or asset data; ESMA gives the example of more specific detail on real estate investments
- Taxonomy changes for consistency with MMF reporting
- Standardised risk profiles for AIFs and UCITS
- Information on the countries in which shares are marketed
- Information on liquidity management tools (LMTs) and their usage
- Information on delegations and oversight of the same
- Variable and event-based reporting
- Standardised reporting in ISO 20022 XML format
Why It Matters Now
ESMA will publish draft RTS and ITS for consultation later in 2026 and will then deliver draft RTS and ITS by April 2027. The reporting will then commence sometime thereafter. The 2029 date is the date for completion of the Phase 1 implementation which includes the move to a centralised reporting to an ESMA reporting hub.
The operational impact should not be under-estimated. For firms that have not previously managed Annex IV reporting, the challenge is not just regulatory interpretation, it is data:
- Aggregating data across administrators and systems
- Introducing new calculation methodologies
- Building processes for ongoing reporting and validation
- Preparing for increased granularity and structured outputs
Understand the Full Impact of UCITS Reporting Changes
We have set out the full detail in our briefing paper, covering the key changes to the reporting framework, the impact across AIFs and UCITS, implementation timelines and regulatory milestones, as well as practical considerations for firms at different stages and how our Galaxy platform supports Annex IV and UCITS reporting.
Designed for UCITS and AIF managers assessing their reporting readiness.


