2 min readWarningEIOPA taxonomy 2.10.0Updated 11 November 2026

Content of the submission and 2 other templates: a conditional check (S.01.01, S.25.01, S.26.02, EIOPA rule BV258_1-1)

A warning on the content of the submission (S.01.01), solvency capital requirement - for undertakings on standard formula (S.25.01) and solvency capital requirement - counterparty default risk (S.26.02) templates, in the annual solo (ARS), annual group (ARG) and annual branch (ARB) returns.

It applies to 2.8.2 returns too, the release for the 2026 returns, and Line4 Check runs it there as well.

The rule in plain words

The item "Diversification" reported in S.26.02 Solvency Capital Requirement - Counterparty default risk should be equal to the difference between the "Total counterparty default risk/Gross SCR" and the sum of the "Type 1 exposures/SCR" and "Type 2 exposures/SCR"

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.

EIOPA writes it out as separate checks, one for each table or return it covers. Line4 Check runs three of them (BV258_1-1-3 to BV258_1-1-6), and a failure names the one that failed.

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. 03EIOPA allows a small rounding difference, worked out from the decimals each value is reported with.
  4. 04It runs only when your filing indicators mark S.01.01 and S.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 (S.01.01.01.01)

Row

  • R0510S.26.02.01 - Solvency Capital Requirement - Counterparty default risk

Column

  • C0010Reporting status

Content of the submission (S.01.01.04.01)

Row

  • R0510S.26.02.04 - Solvency Capital Requirement - Counterparty default risk

Column

  • C0010Reporting status

Content of the submission (S.01.01.07.01)

Row

  • R0510S.26.02.01 - Solvency Capital Requirement - Counterparty default risk

Column

  • C0010Reporting status

Solvency capital requirement - for undertakings on standard formula: basic solvency capital requirement (S.25.01.01.01)

Row

  • R0020Counterparty default risk

Column

  • C0040Gross solvency capital requirement

Solvency capital requirement - for undertakings on standard formula: basic solvency capital requirement (S.25.01.04.01)

Row

  • R0020Counterparty default risk

Column

  • C0040Gross solvency capital requirement

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

Rows

  • R0100Type 1 exposures
  • R0300Type 2 exposures
  • R0330Diversification within counterparty default risk module

Column

  • C0080Gross solvency capital requirement

Solvency capital requirement - counterparty default risk: counterparty default risk - basic information (S.26.02.04.01)

Rows

  • R0100Type 1 exposures
  • R0300Type 2 exposures
  • R0330Diversification within counterparty default risk module

Column

  • C0080Gross solvency capital requirement

Which returns it applies to

Line4 Check runs it on annual solo (ARS), annual group (ARG) and annual branch (ARB) returns on EIOPA taxonomy 2.10.0. EIOPA applies it to annual branch (ARB), annual group (ARG) and annual solo (ARS) returns, as a warning.

EIOPA’s own words and formula

The plain words above are EIOPA’s own, word for word, from its list of validations.

Show the formulaShow

EIOPA's formula, for BV258_1-1-6. Cells are written as {t: table, r: row, c: column}.

if ({t: S.01.01.01.01, r: R0510, c: C0010} = [s2c_CN:x1] or {t: S.01.01.01.01, r: R0510, c: C0010} = [s2c_CN:x71]) then {t: S.26.02.01.01, r: R0330, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} = {t: S.26.02.01.01, r: R0400, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} - ({t: S.26.02.01.01, r: R0100, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} + {t: S.26.02.01.01, r: R0300, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]}) else true()

BV258_1-1-3:

if ({t: S.01.01.07.01, r: R0510, c: C0010} = [s2c_CN:x1]) then {t: S.26.02.01.01, r: R0330, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} = {t: S.26.02.01.01, r: R0400, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} - ({t: S.26.02.01.01, r: R0100, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} + {t: S.26.02.01.01, r: R0300, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]}) else true()

BV258_1-1-4:

if ({t: S.01.01.04.01, r: R0510, c: C0010} = [s2c_CN:x1] or {t: S.01.01.04.01, r: R0510, c: C0010} = [s2c_CN:x71]) then {t: S.26.02.04.01, r: R0330, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} = {t: S.26.02.04.01, r: R0400, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} - ({t: S.26.02.04.01, r: R0100, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]} + {t: S.26.02.04.01, r: R0300, c: C0080, z: Z0001, filter: [s2c_dim:AO] = [s2c_AO:x0]}) else true()

Every Solvency II rule on S.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.