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1 min readWarningBank of England banking taxonomy 4.1.1Updated 11 November 2026

Every value in 14 rows in "(-) Long" and "(-) Short" must be zero or less (OF19.00.01.01, Bank of England check v2056_s)

A warning on the market risk: standardised approach for specific risk in securitisations (MKR SA SEC) template (OF19.00.01.01), in the own funds (PRA001) return.

Line4 Check runs it on the own funds (PRA001) return, proven on test files, check by check: the same outcome on all three test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

In Market risk: standardised approach for specific risk in securitisations (MKR SA SEC) (OF19.00.01.01): every value in 14 rows (listed below) in "(-) Long" (column 0030) and "(-) Short" (column 0040) must be zero or less.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Compare the values in your return. If the first is bigger than it may be, one of them is wrong: check both before you change either.
  3. 03It runs only when your filing indicators mark OF19.00.01 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

Market risk: standardised approach for specific risk in securitisations (MKR SA SEC) (OF19.00.01.01)

Rows

  • R0010Total exposures
  • R0020Of which: RE-SECURITISATIONS
  • R0030Originator: total exposures
  • R0040SECURITISATIONS
  • R0041Of which: qualifying for differentiated capital treatment
  • R0050RE-SECURITISATIONS
  • R0060Investor: total exposures
  • R0070SECURITISATIONS
  • R0071Of which: qualifying for differentiated capital treatment
  • R0080RE-SECURITISATIONS
  • R0090Sponsor: total exposures
  • R0100SECURITISATIONS
  • R0101Of which: qualifying for differentiated capital treatment
  • R0110RE-SECURITISATIONS

Columns

  • C0030(-) Long
  • C0040(-) Short

Which returns it applies to

Line4 Check runs it on the own funds (PRA001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds (PRA001) returns, as a warning.

The Bank’s own words and formula

The plain words above spell out the Bank’s formula, with each cell named from its templates. In the Bank of England’s list of validations, word for word:

v2056_s: [OF19.00.01.01 (All rows, c0030;0040)] <= 0
Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

{t: OF19.00.01.01, r: 0010; 0020; 0030; 0040; 0041; 0050; 0060; 0070; 0071; 0080; 0090; 0100; 0101; 0110, c: 0030; 0040} <= 0

Every PRA banking rule on OF19.00.01.01

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.