1 min readWarningBank of England taxonomy 2.2.0Updated 11 November 2026

Content of the submission and solvency capital requirement - counterparty default risk: a conditional check (IR.01.01, IR.26.02, Bank of England rule IR_bv1763)

A warning on the content of the submission (IR.01.01) and solvency capital requirement - counterparty default risk (IR.26.02) templates, in the annual solo (ARS) return.

The rule in plain words

The calculation of SCR (Delegated Regulation art. 189) reported in IR.26.02 Solvency Capital Requirement - Counterparty default risk might not be correct

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.

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your return. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03The Bank of England allows a small rounding difference, worked out from the decimals each value is reported with.
  4. 04It runs only when your filing indicators mark IR.01.01 and IR.26.02 as reported.
  5. 05This is a warning. It does not stop the return on its own, but your supervisor may ask you to explain it.

The cells it reads

Content of the submission (IR.01.01.01.01)

Row

  • R0510IR.26.02.01 - Solvency Capital Requirement - Counterparty default risk

Column

  • C0010c

Solvency capital requirement - counterparty default risk - basic information (IR.26.02.01.01)

Rows

  • R0100Type 1 exposures
  • R0300Type 2 exposures
  • R0400Total counterparty default risk

Column

  • 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 warning.

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}.

if ({t: IR.01.01.01.01, r: R0510, c: C0010} = $[s2c_CN:x1]) then {t: IR.26.02.01.01, r: R0400, c: C0080} = exp({t: IR.26.02.01.01, r: R0100, c: C0080} * ({t: IR.26.02.01.01, r: R0100, c: C0080} + 0.75 * {t: IR.26.02.01.01, r: R0300, c: C0080}) + {t: IR.26.02.01.01, r: R0300, c: C0080} * (0.75 * {t: IR.26.02.01.01, r: R0100, c: C0080} + {t: IR.26.02.01.01, r: R0300, c: C0080}), 1, 2) else true()

Every Solvency UK rule on IR.01.01

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.