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1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Solvency capital requirement: values must agree (IR.25.04, Bank of England rule IR_bv2012)

A blocking check on the solvency capital requirement template (IR.25.04), in the annual group (ARG) return.

Check your file for this rule

The rule in plain words

Total before all diversification = total before diversification between risk modules - diversification within risk modules

The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.

This is a blocking check. A return that fails it is normally rejected, so fix it before you submit. It runs only when your filing indicators mark IR.25.04 as reported.

The cells it reads

Solvency capital requirement (IR.25.04.04.01)

Rows

  • R0130Diversification within market risk
  • R0170Diversification within counterparty default risk
  • R0260Diversification within life underwriting risk
  • R0310Diversification within health underwriting risk
  • R0360Diversification within non-life underwriting risk
  • R0432Total before all diversification
  • R0434Total before diversification between risk modules

Column

  • C0010c

Which returns it applies to

Line4 Check runs it on annual group (ARG) return on Bank of England taxonomy 2.2.0. The Bank of England applies it to 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}.

{t: IR.25.04.04.01, r: R0432, c: C0010} = {t: IR.25.04.04.01, r: R0434, c: C0010} - {t: IR.25.04.04.01, r: R0130, c: C0010} - {t: IR.25.04.04.01, r: R0170, c: C0010} - {t: IR.25.04.04.01, r: R0260, c: C0010} - {t: IR.25.04.04.01, r: R0310, c: C0010} - {t: IR.25.04.04.01, r: R0360, c: C0010}

Every Solvency UK rule on IR.25.04

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.