1 min readWarningEIOPA taxonomy 2.10.0Updated 11 November 2026

Solvency capital requirement - for undertakings using an internal model (partial or full): a check on its values (S.25.05, EIOPA rule BV1053)

A warning on the solvency capital requirement - for undertakings using an internal model (partial or full) template (S.25.05), in the annual solo (ARS) 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 Amount/estimate of Loss-absorbing capacity of deferred taxes should be equal to the sum of items "Amount/estimate of LAC DT justified by reversion of deferred tax liabilities", "Amount/estimate of LAC DT justified by reference to probable future taxable profit", "Amount/estimate of AC DT justified by carry back, current year", "Amount/estimate of LAC DT justified by carry back, future years"

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 warning. It does not stop the return on its own, but your supervisor may ask you to explain it. It runs only when your filing indicators mark S.25.05 as reported.

The cells it reads

Solvency capital requirement - for undertakings using an internal model (partial or full): calculation of solvency capital requirement (S.25.05.01.02)

Row

  • R0310Amount/estimate of the loss absorbing capacity for deferred taxes

Column

  • C0100Value

Solvency capital requirement - for undertakings using an internal model (partial or full): calculation of loss absorbing capacity of deferred taxes (S.25.05.01.05)

Rows

  • R0640Amount/estimate of LAC DT
  • R0650Amount/estimate of LAC DT justified by reversion of deferred tax liabilities
  • R0660Amount/estimate of LAC DT justified by reference to probable future taxable economic profit
  • R0670Amount/estimate of LAC DT justified by carry back, current year
  • R0680Amount/estimate of LAC DT justified by carry back, future years

Column

  • C0130LAC DT

Which returns it applies to

Line4 Check runs it on annual solo (ARS) and annual branch (ARB) returns on EIOPA taxonomy 2.10.0. EIOPA applies it to annual ECB solo (AES), annual ECB branch (AEB), annual solo (ARS) and annual branch (ARB) 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.25.05.01.05, r: R0640, c: C0130, z: Z0001} = sum({t: S.25.05.01.05, r: R0650; R0660; R0670; R0680, c: C0130, z: Z0001})))

Every Solvency II rule on S.25.05

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.