The facts
- Who files
- UK banks, ring-fenced bodies and building societies (Regulated Activity Group 1). Members of a UK consolidation group submit it only at group level, and ring-fenced bodies in a sub-consolidation group at group and sub-consolidated level (rule 7.1 notes 9 and 29). Source
- How often
- Half-yearly, on a calendar year basis unless the firm notifies the PRA it will use its accounting year-end (rule 7.2 note 11). Source
- Deadline
- 45 business days after the half-year end (rule 7.3). Source
- Format
- XBRL-XML. XBRL instance on the Bank of England Banking taxonomy, entry point PRA_IFRS or PRA_GAAP (financialstatements/2021-07-31), which together cover PRA104 to PRA107. The PRA says most Regulatory Reporting Part reports are filed through RegData. Source
- How it is filed
- Filing routes recorded for the PRA: BEEDS (Bank of England Electronic Data Submission portal); RegData (Financial Conduct Authority). See how firms file with the PRA.
- Status
- In force
- Legal basis
- Group
- Financial statements
Templates (3)
The tables and forms inside the return. Plain name first, the PRA's code in brackets.
- Balance Sheet: Forecast data [Equity] (IFRS) (FF01.03.01)
- Balance Sheet: Forecast data [Equity] (national GAAP) (FF01.03.02)
- Header info (FF700.00.01)
Template groups for PRA106 in entry points PRA_IFRS and PRA_GAAP of taxonomy v4.1.1, plus the shared header. Source
Validation rules
14 rules, as counted from the PRA's published material. Software can run them exactly as published. Source
How they are written: Excel rule list with an expression column and severity per entry point; rules marked Include in XBRL are also XBRL formula assertions in the taxonomy package.
The rules, on bankofengland.co.uk
How they were counted
Rows in sheet 'financialstatements' of 'Bank of England Banking Taxonomy Validations Financial Statements v4.1.0.xlsx' (validations ZIP v4.1.1) whose T1 to T3 table columns include a FF01.03 table, across the PRA_IFRS and PRA_GAAP entry points. A rule that spans several of PRA104 to PRA107 is counted for each.
Counts are in the PRA's own unit, so they are not comparable with other regulators' counts.
Public data
No published data from this return was found. No publication of this data, firm by firm or added up, was found on the Bank of England pages read. The PRA does not publish individual firms' returns. Source
Official documents (13)
The PRA'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.
- Banks, building societies and investment firms (regulatory reporting and disclosure, banking sector)
List of returns · HTML · 10 November 2026
The page says it was last updated 10 November 2026.
- PRA106 data item
Template · XLSX · 60.4 KB · 26 May 2022
SHA-256
aa68992aab83show in fullaa68992aab834d1e68093f0ed0b648209101c388232ff3d5c82e7fdbd4ad7ee3 - PRA106 template (January 2022, linked from the Regulatory Reporting Part)
Template · XLSX · 59.4 KB · 14 October 2021
SHA-256
950f0671594dshow in full950f0671594dd38f1004af55a5ce9f6065e56bc6e2793c48cbb3e0367293920d - PRA104-106 instructions
Instructions · PDF · 567.4 KB · 10 November 2017
SHA-256
5816c66b3d73show in full5816c66b3d73a029c3c2f8b348c6898f5df8c261cf7783d4a530cc2d6046c26e - Request to report financial information on an accounting reference date (ARD) linked basis
Other · XLSX · 681.6 KB · 5 December 2018
Also the form named in Regulatory Reporting rule 19.3B.
SHA-256
5acd59610616show in full5acd596106167f027991ad0b3dd0c9ca0f33b827575bbfe183ce7566566ddb60 - PRA Rulebook: Regulatory Reporting Part (as in force on 11 November 2026)
Legal text · HTML
- Bank of England Banking taxonomy package v4.1.1
Taxonomy · ZIP · 57.5 MB · 27 August 2026
24 entry points: PRA001, PRA116, PRA112, PRA113, PRA114, PRA117, PRA118, LVR001, LVR002, MRL001, MRL003, PRA_GAAP, PRA_IFRS, PRA_MEM, PRA110, PRA115 and RFB001 to RFB008 (release note v4.1.1).
SHA-256
b414cf871ad2show in fullb414cf871ad2986f83fdf7495655bab88de38679e8ff6eced61f1033cdac41d0 - Bank of England Banking taxonomy validations v4.1.1
Validation rules · ZIP · 1.5 MB · 27 August 2026
11 Excel workbooks, one rule list per framework, with an expression column, severity and the entry points each rule applies to.
SHA-256
5efe95f1d6cbshow in full5efe95f1d6cb617c76c5a8772d8d91b4515606ec5d688d8eb7f0f4a8570e6fe1 - Bank of England Banking sample instances v4.1.1
Sample · ZIP · 3.4 MB · 27 August 2026
The release note says the samples contain random data and should not be assumed to obey the validation rules.
SHA-256
6ad5c895c654show in full6ad5c895c6544468d8e325f5ef93809e1632aa0714052d4c880ec18f2b44b6df - Bank of England Banking DPM v4.1.1
Data dictionary · ZIP · 2.9 MB · 27 August 2026
Data point model dictionary and one annotated-templates workbook per framework.
SHA-256
d5f8e8b23765show in fulld5f8e8b2376599b219838261a048bdaf0f9877525d1599f16a281a1214ed3757 - Bank of England Banking taxonomy: list of known issues (last updated 27 August 2026)
Known issues · XLSX · 132.6 KB · 27 August 2026
SHA-256
e09725ece582show in fulle09725ece582b516ca7518a108bb18210afd0b22b4d37924f9452fbd9b4226b1 - Bank of England Banking taxonomy release note v4.1.1
Release note · PDF · 265.1 KB · 27 August 2026
SHA-256
bbd75fc76abeshow in fullbbd75fc76abe098a90433a1246375daf4ff155cc239fe43b83ea200eab2f920c - Bank of England XBRL filing manual
Filing rules · PDF · 763.6 KB · 30 May 2024
The manual is version 1.0.1 dated 30 May 2024; the web page says it was last updated 8 September 2025.
SHA-256
53335968df4bshow in full53335968df4b753975f8efcff574fb014a36ef178e16061ce36931c7524b5e59
Sources
Every page and document this return's facts were read from.
- bankofengland.co.uk/prudential-regulation/regulatory-reporting/regulatory-reporting-banking-sector/banks-building-societies-and-investment-firms
- prarulebook.co.uk/pra-rules/regulatory-reporting
- bankofengland.co.uk/-/media/boe/files/prudential-regulation/regulatory-reporting/banking/boe-banking-v411.zip
- bankofengland.co.uk/-/media/boe/files/prudential-regulation/regulatory-reporting/banking/boe-banking-taxonomy-validations-v411.zip
- bankofengland.co.uk/-/media/boe/files/prudential-regulation/regulatory-reporting/banking/pra104-106-instructions.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.
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 PRA's reuse terms. This describes what regulators publish. It is not legal or regulatory advice: always rely on the regulator's own text.
Last checked 11 November 2026.
