1 min readSwitched off by EBA on 17 March 2026EBA reporting framework 4.2Updated 10 November 2026

Additional tier 1 capital: a matching-values check across capital adequacy: own funds definition and capital adequacy: transitional provisions: Summary (C 01.00, C 05.01, EBA rule v0197_m)

A check in the own funds and capital requirements return (COREP own funds), on templates C 01.00, capital adequacy - own funds definition and C 05.01, capital adequacy - transitional provisions: Summary.

EBA switched this rule off for filings submitted from 17 March 2026, in a quarterly update to its list of validation rules. It no longer applies, so a failure here does not count, and Line4 Check does not run it.

The rule in plain words

For additional tier 1 capital: instruments issued by subsidiaries that are given recognition in AT1 capital, amount must equal transitional recognition in consolidated own funds of qualifying additional Tier 1 capital, eligible amount without transitional provisions.

The headline gives only the kind of check and the template, because the rule is too long to say in a headline. The plain words above say all of it.

The template it checks

Capital adequacy - own funds definition (C 01.00)

Row

  • 0670Instruments issued by subsidiaries that are given recognition in AT1 Capital

Column

  • 0010Amount

Capital adequacy - transitional provisions: Summary (C 05.01)

Row

  • 0091Transitional recognition in consolidated own funds of qualifying Additional Tier 1 capital

Column

  • 0060Eligible amount without transitional provisions
Show the rule as writtenShow

EBA's formula. Cells are written as {template, row, column, sheet}.

{C_01.00,r0670,c0010,} = {C_05.01,r0091,c0060,}

Every COREP own funds rule, by template

Checks like this one, run at the point of submission, are the first step to real-time supervision.