Line4

1 min readWarningEBA reporting framework 4.2Updated 10 November 2026

Total event types cannot be less than the largest of seven values (EBA rule v5840_m)

A warning in the own funds and capital requirements return (COREP own funds), on template C 17.01.a, operational risk: losses and recoveries by business lines and event types in the last year.

Check your file against this ruleWhat to do if it fails

The rule in plain words

Total event types cannot be less than the largest of seven values.

EBA checks it for ten rows, from sum of the five largest losses (0060) to sum of the five largest losses (0960). That makes ten checks. A failure names the one that failed.

How the Line4 Check report words itShow

The first of its checks, word for word as the report shows it when it fails. The others read the same, with their own column, row or sheet.

Sum of the five largest losses, TOTAL EVENT TYPES >= the largest of Sum of the five largest losses, INTERNAL FRAUD, Sum of the five largest losses, EXTERNAL FRAUD, Sum of the five largest losses, EMPLOYMENT PRACTICES AND WORKPLACE SAFETY, Sum of the five largest losses, CLIENTS, PRODUCTS & BUSINESS PRACTICES, Sum of the five largest losses, DAMAGE TO PHYSICAL ASSETS, Sum of the five largest losses, BUSINESS DISRUPTION AND SYSTEM FAILURES and Sum of the five largest losses, EXECUTION, DELIVERY & PROCESS MANAGEMENT

What to do if your filing fails it

  1. 01Open the template below and find the cells the rule reads.
  2. 02Work out both sides from your file, as the rule in plain words sets out, and compare them.
  3. 03EBA allows a small rounding difference, worked out from the decimals each value is reported with.
  4. 04It runs only when your filing indicators mark C 17.01 as reported.
  5. 05This is a warning. It does not stop the filing on its own, but your authority may ask you to explain it.

The cells it reads

Operational risk: losses and recoveries by business lines and event types in the last year (C 17.01.a)

Rows

  • 0060Sum of the five largest losses
  • 0160Sum of the five largest losses
  • 0260Sum of the five largest losses
  • 0360Sum of the five largest losses
  • 0460Sum of the five largest losses
  • 0560Sum of the five largest losses
  • 0660Sum of the five largest losses
  • 0760Sum of the five largest losses
  • 0860Sum of the five largest losses
  • 0960Sum of the five largest losses

Columns

  • 0010INTERNAL FRAUD
  • 0020EXTERNAL FRAUD
  • 0030EMPLOYMENT PRACTICES AND WORKPLACE SAFETY
  • 0040CLIENTS, PRODUCTS & BUSINESS PRACTICES
  • 0050DAMAGE TO PHYSICAL ASSETS
  • 0060BUSINESS DISRUPTION AND SYSTEM FAILURES
  • 0070EXECUTION, DELIVERY & PROCESS MANAGEMENT
  • 0080TOTAL EVENT TYPES
Show the rule as writtenShow

EBA's formula, as written out for the first of its checks. Cells are written as {template, row, column, sheet}.

{C_17.01.a,r0160,c0080,} >= max({C_17.01.a,r0160,c0010,},{C_17.01.a,r0160,c0020,},{C_17.01.a,r0160,c0030,},{C_17.01.a,r0160,c0040,},{C_17.01.a,r0160,c0050,},{C_17.01.a,r0160,c0060,},{C_17.01.a,r0160,c0070,})

The next five:

{C_17.01.a,r0260,c0080,} >= max({C_17.01.a,r0260,c0010,},{C_17.01.a,r0260,c0020,},{C_17.01.a,r0260,c0030,},{C_17.01.a,r0260,c0040,},{C_17.01.a,r0260,c0050,},{C_17.01.a,r0260,c0060,},{C_17.01.a,r0260,c0070,}){C_17.01.a,r0560,c0080,} >= max({C_17.01.a,r0560,c0010,},{C_17.01.a,r0560,c0020,},{C_17.01.a,r0560,c0030,},{C_17.01.a,r0560,c0040,},{C_17.01.a,r0560,c0050,},{C_17.01.a,r0560,c0060,},{C_17.01.a,r0560,c0070,}){C_17.01.a,r0060,c0080,} >= max({C_17.01.a,r0060,c0010,},{C_17.01.a,r0060,c0020,},{C_17.01.a,r0060,c0030,},{C_17.01.a,r0060,c0040,},{C_17.01.a,r0060,c0050,},{C_17.01.a,r0060,c0060,},{C_17.01.a,r0060,c0070,}){C_17.01.a,r0360,c0080,} >= max({C_17.01.a,r0360,c0010,},{C_17.01.a,r0360,c0020,},{C_17.01.a,r0360,c0030,},{C_17.01.a,r0360,c0040,},{C_17.01.a,r0360,c0050,},{C_17.01.a,r0360,c0060,},{C_17.01.a,r0360,c0070,}){C_17.01.a,r0460,c0080,} >= max({C_17.01.a,r0460,c0010,},{C_17.01.a,r0460,c0020,},{C_17.01.a,r0460,c0030,},{C_17.01.a,r0460,c0040,},{C_17.01.a,r0460,c0050,},{C_17.01.a,r0460,c0060,},{C_17.01.a,r0460,c0070,})

And 4 more, the same formula for the other cells it covers.

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.