Line4

1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

First three characters of IR.25.05, C0010 are a three digit number in range 100-999 (IRR.25.05, IR.25.05, Bank of England rule IR_bv2490)

A blocking check on the solvency capital requirement - partial or full internal model components (IRR.25.05) and solvency capital requirement - partial or full internal model components (IR.25.05) templates, in the annual solo (ARS) and annual group (ARG) returns.

Check your file for this ruleWhat to do if it fails

The rule in plain words

First three characters of IR.25.05, C0010 are a three digit number in range 100-999

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02Compare the code or text in your return with the format the rule sets out, character by character, including any prefix and any spaces.
  3. 03This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Solvency capital requirement - partial or full internal model components (IRR.25.05.01.01)

Columns

  • C0020Components Description
  • C0030Calculation of the Solvency Capital Requirement
  • C0040Amount modelled

Solvency capital requirement - partial or full internal model components (IR.25.05.01.01)

Columns

  • C0020Components Description
  • C0030Calculation of the Solvency Capital Requirement
  • C0040Amount modelled

Which returns it applies to

Line4 Check runs it on annual solo (ARS) and annual group (ARG) returns on Bank of England taxonomy 2.2.0. The Bank of England applies it to annual solo (ARS) and annual group (ARG) returns, as a blocking check.

The Bank’s own words and formula

The plain words above are the Bank of England’s own, word for word, from its list of validations.

Show the formulaShow

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

matches(dim($v0,$[s2c_dim:NX]), "^[1-9]{1}[0-9]{2}")

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.