1 min readWarningEIOPA taxonomy 2.10.0Updated 11 November 2026

Own funds: two values must match (S.23.01, EIOPA rule BV1767)

A warning on the own funds template (S.23.01), in the annual solo (ARS) return.

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 "Tier 1 - unrestricted", "Tier 1 - restricted" and "Tier 2" value of the item "Total available own funds to meet the MCR" reported in S.23.01.01.01 Own funds should be equal to the value of "Total basic own funds after deductions"

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 table below and find the cells the rule reads.
  2. 02The two values must be the same. Find which of the two is right, and correct the other one.
  3. 03It runs only when your filing indicators mark S.23.01 as reported.
  4. 04This 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

Own funds (S.23.01.01.01)

Rows

  • R0290Total basic own funds after deductions
  • R0510Total available own funds to meet the MCR

Columns

  • C0020Tier 1 - unrestricted
  • C0030Tier 1 - restricted
  • C0040Tier 2

Which returns it applies to

Line4 Check runs it on annual solo (ARS) return on EIOPA taxonomy 2.10.0. EIOPA applies it to annual ECB solo (AES) 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. Cells are written as {t: table, r: row, c: column}.

{t: S.23.01.01.01, r: R0290, z: Z0001} = {t: S.23.01.01.01, r: R0510, z: Z0001}

Every Solvency II rule on S.23.01

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.