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

Alternative treatment of the exposure measure (LR1): the value of this exposure should be greater than or equal to zero (LV40.00.00.01, Bank of England check v10262_s)

A warning on the alternative treatment of the exposure measure (LR1) template (LV40.00.00.01), in the leverage ratio (LVR001) return.

Line4 Check runs it on the leverage ratio (LVR001) return, proven on test files, check by check: the same outcome on all eight test files of that return.

The rule in plain words

The value of this exposure should be greater than or equal to zero.

In Alternative treatment of the exposure measure (LR1) (LV40.00.00.01): "Credit derivatives (protection bought)" in column "Capped notional amount (same reference name)" (row 0050, column 0085) must not be negative.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Look for a value below zero in these cells, such as an amount entered as a negative number.
  3. 03It runs only when your filing indicators mark LV40.00.00 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

Alternative treatment of the exposure measure (LR1) (LV40.00.00.01)

Row

  • R0050Credit derivatives (protection bought)

Column

  • C0085Capped notional amount (same reference name)

Which returns it applies to

Line4 Check runs it on the leverage ratio (LVR001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to leverage ratio (LVR001) returns, as a warning.

The Bank’s own words and formula

The first paragraph of the plain words above is the Bank of England’s own, word for word, from its list of validations. The second spells out its formula, with each cell named from its templates.

Show the formulaShow

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

{t: LV40.00.00.01, r: 0050, c: 0085} >= 0

Every PRA banking rule on LV40.00.00.01

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.