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1 min readBlockingBank of England banking taxonomy 4.1.1Updated 11 November 2026

Every value in the cells it covers must be zero or more (SR41.01.04.01, Bank of England check boe_v3978_s)

A blocking check on the intragroup financial reporting (detailed breakdown) Part 2: Fair value hierarchy: financial instruments at amortised cost template (SR41.01.04.01), in the intragroup financial reporting (core and detailed breakdowns) (RFB004) return.

Line4 Check runs it on the intragroup financial reporting (core and detailed breakdowns) (RFB004) return, proven on test files, check by check: the same outcome on all eight test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

In Intragroup financial reporting (detailed breakdown) Part 2: Fair value hierarchy: financial instruments at amortised cost (SR41.01.04.01): every value in the cells it covers must be zero or more.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Look for a value below zero in these cells, such as an amount entered as a negative number.
  3. 03It runs only when your filing indicators mark SR41.01.04 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Intragroup financial reporting (detailed breakdown) Part 2: Fair value hierarchy: financial instruments at amortised cost (SR41.01.04.01)

Rows

  • R0015Financial assets at amortised cost
  • R0016Debt securities
  • R0017Loans and advances
  • R0070Financial liabilities measured at amortised cost
  • R0080Deposits
  • R0090Debt securities issued
  • R0100Other financial liabilities

Columns

  • C0010Fair value
  • C0020Level 1
  • C0030Level 2
  • C0040Level 3

Which returns it applies to

Line4 Check runs it on the intragroup financial reporting (core and detailed breakdowns) (RFB004) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to intragroup financial reporting (core and detailed breakdowns) (RFB004) returns, as a blocking check.

The Bank’s own words and formula

The plain words above spell out the Bank’s formula, with each cell named from its templates. In the Bank of England’s list of validations, word for word:

boe_v3978_s: T1: Sr041.01.04.01; rows: {Sr041.01.04.01, r0015;0016;0017;0070;0080;0090;0100}; columns: {Sr041.01.04.01, c0010;0020;0030;0040}; Expression: {Sr041.01.04.01} >= 0
Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

{t: SR41.01.04.01} >= 0

Where it applies, in the Bank's words (its scope):

scope({t: SR41.01.04.01, r: 0015; 0016; 0017; 0070; 0080; 0090; 0100, c: 0010; 0020; 0030; 0040, seq: False, f: banking, fv: structural_reform})

Every PRA banking rule on SR41.01.04.01

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.