1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Solvency capital requirement - non-life and health catastrophe risk: values must agree (IR.27.01, Bank of England rule IR_bv0646)

A blocking check on the solvency capital requirement - non-life and health catastrophe risk template (IR.27.01), in the annual solo (ARS) return.

The rule in plain words

The item "Total Earthquake all Regions before diversification" reported in Solvency Capital Requirement - Non-life and Health catastrophe risk (IR.27.01.01.03) should be equal to the sum of the "Total Earthquake EEA Regions before diversification" and "Total Earthquake Other Regions before diversifications"

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.27.01 as reported.

The cells it reads

Solvency capital requirement - non-life and health catastrophe risk: natural catastrophe risk - earthquake (IR.27.01.01.03)

Rows

  • R1030Total Earthquake specified Regions before diversification
  • R1220Total Earthquake Other Regions before diversifications
  • R1230Total Earthquake all Regions before diversification

Columns

  • C0170Catastrophe Risk Charge before risk mitigation
  • C0180Estimated Risk Mitigation
  • C0190Estimated Reinstatement Premiums
  • C0200Catastrophe Risk Charge after risk mitigation

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 "Total Earthquake all Regions before diversification" reported in IR.27.01.01.03 - Solvency Capital Requirement - Non-life and Health catastrophe risk should be equal to the sum of the "Total Earthquake EEA Regions before diversification" and "Total Earthquake Other Regions before diversifications".
Show the formulaShow

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

{t: IR.27.01.01.03, r: R1230, z: Z0001} = {t: IR.27.01.01.03, r: R1030, z: Z0001} + {t: IR.27.01.01.03, r: R1220, z: Z0001}

Every Solvency UK rule on IR.27.01

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.