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In forceInvestment funds: EU returns (EU, ESMA)Last checked 11 November 2026

Money market fund return, MMFR Article 37 (MMF Return)

A regulatory return listed by the Central Bank of Ireland (CBI), Ireland.

The EU money market fund report under Article 37 of the Money Market Funds Regulation: characteristics, portfolio indicators, stress test results, assets and liabilities of each fund. The Central Bank collects it and passes it to ESMA, whose XML form and validations apply. Source

Official title: Money Market Fund Returns under Article 37

The facts

Who files
All Irish authorised money market funds; filed by the board, fund management company, general partner or AIFM. Source
How often
At least quarterly (Article 37(1)). MMFs with assets under management of EUR 100 million or less may report at least annually, although the Central Bank provides for quarterly reporting by all MMFs; a sub-fund with a zero NAV reports at least annually. Source
Deadline
Within 25 calendar days of the quarter end. Source
Format
XML. An XML file in ESMA's form, inside a compressed zip file, uploaded to the Portal; the return then awaits ESMA validation and feedback. Source
How it is filed
Filing routes recorded for the CBI: Central Bank of Ireland Portal (formerly the Online Reporting System, ONR); MiFIR transaction reporting Machine to Machine channel; Online Reporting System (ONR), now linked as 'Credit Union Auditor Reporting'; Email to the Central Bank. See how firms file with the CBI.
Status
In force
Group
Investment funds: EU returns (EU, ESMA)

Templates (0)

The library lists no templates for this return.

EU return: the XML form and reporting instructions are published by ESMA. No EBA or EIOPA entry applies. Source

Validation rules

The CBI publishes the checks it runs on this return. They could not be counted from the published material. Software can run them exactly as published. Source

How they are written: ESMA validation rules for MMF reporting.

How they were counted

Not counted: ESMA's validation file applies; the Central Bank guidance describes ESMA's validation failure and rejection process.

Counts are in the CBI's own unit, so they are not comparable with other regulators' counts.

Public data

No published data from this return was found. No data from this return published by the Central Bank was found on the pages checked. Source

Official documents (2)

The CBI's own files, with the size and SHA-256 fingerprint of each as downloaded on 11 November 2026, so anyone can tell whether a copy is the same version.

  • Reporting Requirements (Funds)

    List of returns · HTML

    Fund-level supervisory returns: fund metadata, DIFR, AIFMD, MMFR and DMM, and the Regulatory Reporting Guidance.

  • MMFR Reporting Guidance

    Instructions · PDF · 1.1 MB · October 2022

    SHA-256 7db917c28572show in full7db917c2857273687dc1fe479a103e15fee7069cd7289229d1bbfac39dc05219

Sources

Every page and document this return's facts were read from.

Knowing exactly what is collected, in what format and under which rules is the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.

Line4's text and records here are free to reuse under CC BY 4.0. Please credit: “Source: Line4 regulatory submissions library (CC BY 4.0), https://www.line4.ai”. The regulators' documents, forms, taxonomies, rules and data belong to them: see CBI's reuse terms. This describes what regulators publish. It is not legal or regulatory advice: always rely on the regulator's own text.

Contains Irish Public Sector Information from the Central Bank of Ireland (https://www.centralbank.ie), copyright Central Bank of Ireland, re-used under the Bank's licence for re-use of public sector information (https://www.centralbank.ie/fns/re-use-of-public-sector-information). This library summarises it in plain English and links the originals; the Central Bank of Ireland does not endorse this library.

Last checked 11 November 2026.