1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Solvency capital requirement - non-life underwriting risk: a conditional check (IR.26.05, Bank of England rule IR_bv1199)

A blocking check on the solvency capital requirement - non-life underwriting risk template (IR.26.05), in the annual solo (ARS) return.

The rule in plain words

The total volume for the line of business reported in IR.26.05 -Solvency Capital Requirement - Non-Life underwriting risk should be equal to the addition of its premiums volume and its reserves volume taking into consideration the geographical diversification factor

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.26.05 as reported.
  5. 05This 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 - non-life underwriting risk - non-life premium and reserve risk (IR.26.05.01.01)

Row

  • R0130Fire and other property damage

Columns

  • C0060Vprem
  • C0070Vres
  • C0080Geographical Diversification
  • C0090V

Solvency capital requirement - non-life underwriting risk - simplifications used (IR.26.05.01.05)

Row

  • R0010Captives simplifications - non life premium and reserve risk

Column

  • C0010Simplifications used

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

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.26.05.01.05, r: R0010, c: C0010} = $[s2c_AP:x34]) then {t: IR.26.05.01.01, r: R0130, c: C0090} = ({t: IR.26.05.01.01, r: R0130, c: C0060} + {t: IR.26.05.01.01, r: R0130, c: C0070}) * (0.75 + 0.25 * {t: IR.26.05.01.01, r: R0130, c: C0080}) else true()

Every Solvency UK rule on IR.26.05

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.