Pension fund member, contribution and transfer files (DN)

The facts

Who files

General pension fund companies (PTE) for the funds they manage (DN format). Source

How often

Nine DN reports: monthly (DN01, DN21, DN33), quarterly (DN12, DN13, DN22, DN25) and current (DN05, DN09) (DN format). Source

Deadline

DN01: 15 days after the last day of the month. DN21 and DN33: by the 2nd working day of the next month. DN22 and DN25: 30 days after the end of the quarter. DN12: by the 2nd working day after the transfer payment (made on the last working day of February, May, August and November). DN13: by the 2nd working day after the last working day of February, May, August and November. DN05 and DN09: on the first working day after the event (DN format). Source

Format

Flat file. ASCII text files in the WIN 1250 code page, one record per line, every field ended by '|', with a header record (NAG) and a footer record (STP) carrying the record count and a checksum; one file type per record type (DN01 to DN33). Sent with the Data Transmission Application (ATD) in the KNF Portal; in an emergency by password-protected e-mail to dff@knf.gov.pl or on a data carrier. Source

How it is filed

Filing routes recorded for the KNF: ESPI (Elektroniczny System Przekazywania Informacji, Electronic Information Transmission System); Portal KNF (KNF Portal), with the Data Transmission Application (ATD); WebService KNF; CRP communication subsystem (Podsystem Komunikacji CRP), including the DORA Reporting System (SSD); e-RUP reporting forms; Aplikacja Sprawozdawcza SNU (Reporting Application); NBP SIS (reporting system of Narodowy Bank Polski). See how firms file with the KNF.

Status

In force

Legal basis

• Ustawa z dnia 28 sierpnia 1997 r. o organizacji i funkcjonowaniu funduszy emerytalnych (Act on the organisation and operation of pension funds), as cited by KNF
• Rozporządzenie Rady Ministrów z dnia 23 stycznia 2014 r. w sprawie obowiązków informacyjnych funduszy emerytalnych (regulation on the reporting duties of pension funds), as cited by KNF

Group

Pension funds and pension fund companies (OFE, DFE, PTE) (national)

Templates (9)

The tables and forms inside the return. Plain name first, the KNF's code in brackets.

• Number of contracts (DN01)
• Conversions and redemptions (DN05)
• Contributions (DN09)
• External transfers (DN12)
• Internal transfers (DN13)
• Members' capital (DN21)
• Number of OFE members (DN22)
• Number of DFE members (DN25)
• Number of accounts (DN33)

The nine DN files listed in section 2.7 of the DN format, version 4.1.2. Source

Validation rules

The KNF publishes the checks it runs on this return. They could not be counted from the published material. They are written for people to read; software cannot run them as published. Source

How they are written: Record layouts, field types and general rules in the PDF format document.

The DN format sets the field types, the header and footer records, the record count and the file checksum; corrections are sent as a full corrected file.

The rules, on sprawozdawczosc.knf.gov.pl

Counts are in the KNF'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 KNF was found on the pages checked. Source

Official documents (7)

The KNF'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.

• Format plików typu DN (wersja 4.1.2)

  Data dictionary · PDF · 347.0 KB · 1 July 2026

  Format of the DN files on the funds managed by PTE (contracts, members, contributions, transfers, accounts), valid from 2026-08-01.

  SHA-256 7929d9752f41show in fullhide

  7929d9752f416c6f4a220c2683d45be17ca5c03cb99fd3f4730f3ec4e6495774
• Sprawozdawczość OFE, DFE i PTE

  List of returns · HTML · 30 June 2026

  Reporting of open and voluntary pension funds and general pension fund companies: legal basis, file formats PF, DF, DN and DP (valid from 2026-08), annexes, and sending through the Data Transmission Application (ATD) in the KNF Portal.

• Załącznik nr 1. Oznaczenia podmiotów

  Data dictionary · XLSX · 34.8 KB · 1 July 2026

  Codes of PTEs and pension funds used in file names and records.

  SHA-256 8f75265be3cbshow in fullhide

  8f75265be3cb757833790091b363aa8aa62b995b94fb5794752608a4a30a1cdf
• Załącznik nr 2. Zestawienie kategorii lokat

  Data dictionary · XLSX · 39.5 KB · 30 June 2026

  Codes of the investment categories of pension funds.

  SHA-256 4965e8772840show in fullhide

  4965e87728408490aa3f0d7227e0763cffe16fe6e7962c1c63448d520f3ce931
• Portal Komisji Nadzoru Finansowego (Portal KNF)

  Guidance · HTML · 29 April 2026

  The KNF Portal: access by application or declaration, signature rules, technical support, the Portal rules and user instructions.

• Zarządzenie nr 30/2025 w sprawie regulaminu korzystania z Portalu KNF (Regulamin korzystania z Portalu KNF)

  Filing rules · PDF · 146.9 KB

  SHA-256 378a4955ce25show in fullhide

  378a4955ce25bd73b1430d7d34ac00a37d1b2b41d574785fc1a77e401e647c41
• ABC Portalu

  Guidance · PDF · 948.8 KB

  Introductory user guide to the KNF Portal.

  SHA-256 c2bcc570267dshow in fullhide

  c2bcc570267deabb0594d6836857a8bd128d1354b83cf08017d7a42bcc7dc0dc

Sources

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

• sprawozdawczosc.knf.gov.pl/podmioty/instytucje-zarzadzajace-dfe-i-ofe
• sprawozdawczosc.knf.gov.pl/snp/Format_plikow_DN_ver_4_1_2_od_2026-08-01.pdf

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.