1 min readBlockingEIOPA taxonomy 2.10.0Updated 11 November 2026

The item "Buyer / Seller" in Open Derivatives must be reported for derivatives other than forwards (CIC ##E#) (S.08.01, EIOPA rule BV803)

A blocking check on the open derivatives template (S.08.01), in the quarterly solo (QRS), quarterly group (QRG) and quarterly branch (QRB) 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 "Buyer / Seller" in Open Derivatives (S.08.01) must be reported for derivatives other than forwards (CIC ##E#)

EIOPA writes it out as separate checks, one for each table or return it covers. Line4 Check runs two of them (BV803-1 and BV803-2), 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. 02Report a value in this cell where the rule applies. A 0 counts as reported; a cell left out of the return does not.
  3. 03It runs only when your filing indicators mark S.08.01 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Open derivatives: information on positions held (S.08.01.01.01)

Column

  • C0140Buyer / Seller

Open derivatives: information on derivatives (S.08.01.01.02)

Column

  • C0380CIC

Open derivatives: information on positions held (S.08.01.04.01)

Column

  • C0140Buyer / Seller

Open derivatives: information on derivatives (S.08.01.04.02)

Column

  • C0380CIC

Which returns it applies to

Line4 Check runs it on quarterly solo (QRS), quarterly group (QRG) and quarterly branch (QRB) returns on EIOPA taxonomy 2.10.0. EIOPA applies it to quarterly group (QRG), annual group (ARG), quarterly ECB branch (QEB), quarterly ECB solo (QES), quarterly branch (QRB), quarterly solo (QRS), annual branch (ARB), annual solo (ARS), annual ECB solo (AES) and annual ECB branch (AEB) returns, as a blocking check.

EIOPA’s own words and formula

In EIOPA’s list of validations, word for word:

The item "Buyer / Seller" in S.08.01 - Open Derivatives must be reported for derivatives other than forwards (CIC ##E#).
Show the formulaShow

EIOPA's formula, for BV803-2. Cells are written as {t: table, r: row, c: column}.

not(isNull({t: S.08.01.01.01, c: C0140, z: Z0001}))

BV803-1:

not(isNull({t: S.08.01.04.01, c: C0140, z: Z0001}))

Every Solvency II rule on S.08.01

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.