1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Solvency capital requirement - life underwriting risk: values must agree (IRR.26.03, Bank of England rule IR_bv0766_01)

A blocking check on the solvency capital requirement - life underwriting risk template (IRR.26.03), in the annual solo (ARS) return.

The rule in plain words

The item "Ring Fenced Fund/Matching adjustment portfolio or remaining part" should be reported in Solvency Capital Requirement - Counterparty default risk (IRR.26.02) [RFF/MP/RM]

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 IRR.26.03 as reported.

The cells it reads

Solvency capital requirement - life underwriting risk (IRR.26.03.01.04)

Rows

  • R0100Mortality risk
  • R0200Longevity risk
  • R0300Disability-morbidity risk
  • R0400Lapse risk
  • R0410risk of increase in lapse rates
  • R0420risk of decrease in lapse rates
  • R0430mass lapse risk
  • R0500Life expense risk
  • R0600Revision risk
  • R0700Life catastrophe risk
  • R0800Diversification within life underwriting risk module
  • R0900Total life underwriting risk

Columns

  • C0060Net solvency capital requirement
  • C0080Gross solvency capital requirement

Which returns it applies to

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

The Bank’s own words and formula

In the Bank of England’s list of validations, word for word:

The item "Ring Fenced Fund/Matching adjustment portfolio or remaining part" should be reported in IRR.26.02 - Solvency Capital Requirement - Counterparty default risk [RFF/MP/RM].
Show the formulaShow

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

count({t: IRR.26.03.01.04, r: R0100; R0200; R0300; R0400; R0410; R0420; R0430; R0500; R0600; R0700; R0800; R0900, c: C0060; C0080, z: Z0001, filter: [s2c_dim:PO] = [boec_s2c_PU:b5]}) = 24

Every Solvency UK rule on IRR.26.03

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.