The facts
- Who files
- Banks and branches of foreign banks (Decree No. 346/2013 Coll.). Source
- How often
- Quarterly, as at the last day of the calendar quarter. Source
- Deadline
- Within 29 days of the end of the calendar quarter; the fourth quarter's return is due by 10 February of the following year. Source
- Format
- Other. Submitted as an electronic data message in the CNB's own data-file structure through the internet application or user interface of the CNB's collection system (SDAT); the decree does not name XBRL for this national return. Source
- How it is filed
- Filing route recorded for the CNB: SDAT (Sběr dat ČNB). See how firms file with the CNB.
- Status
- In forceDecree No. 197/2025 Coll. amends the Annex 1 point for this return, narrowing it to deposit concentration; the CNB's banking methodology confirms part of it ends under the methodology version effective from 1 January 2026 (METVB20260101). Source
- Group
- Banks (national)
Templates (1)
The tables and forms inside the return. Plain name first, the CNB's code in brackets.
- Quarterly report on concentration of loans and deposits (BD (ČNB) 25-04)
Where the list was read: Source
Validation rules
No published validation rules were found for this return. The COREP/IRRBB and FINREP/AE/FP overview workbooks found on the credit institutions methodology page are applicability matrices (which institutions file which template, by size), not validation rules. Source
Public data
No published data from this return was found. No data from this return published by the Czech National Bank was found on the pages checked. Source
Official documents (2)
The CNB's own files, with the size and SHA-256 fingerprint of each as downloaded on 13 November 2026, so anyone can tell whether a copy is the same version.
- Decree No. 346/2013 Coll., on reporting by banks and foreign bank branches to the Czech National Bank (consolidated text)
Legal text · PDF · 310.5 KB · 1 July 2021
Czech only. Consolidated text as stated effective from 1 July 2021; Annex 1 lists the content of each national return, Annex 2 the intra-group transactions return, Annex 3 the group report's extra information.
SHA-256
deffccf3159dshow in fulldeffccf3159df13d7d3fab29d18d87427462ad173ba361892adc4232e9b305d2 - Decree No. 197/2025 Coll., reducing the regulatory burden in the financial market (English translation)
Legal text · PDF · 158.6 KB · 16 June 2025
Non-binding translation. Repeals point 2 of Annex 1 to Decree No. 346/2013 Coll. (the Bil (ČNB) 3-01 annual profit-distribution return) and amends the wording of the Annex 1 point for BD (ČNB) 25-04, among many other changes across several decrees.
SHA-256
d8eb814bb6b0show in fulld8eb814bb6b08b94334c387463ebe6abdd669a31ccc606ab1c6873bdd15b4f1e
Sources
Every page and document this return's facts were read from.
- cnb.cz/export/sites/cnb/cs/legislativa/.galleries/vyhlasky/vyhlaska_346_2013_uplne_zneni.pdf
- cnb.cz/export/sites/cnb/en/legislation/.galleries/decrees/decree_197_2025.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.
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Source: the CNB (Czech National Bank, https://www.cnb.cz). Documents copied here are unchanged. The plain-English summaries are Line4's own; the CNB does not endorse this library.
Last checked 13 November 2026.