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

The RWEA of this item must be greater than or equal to zero (LV43.00.00.01, Bank of England check v4454_s)

A blocking check on the (LR4) Alternative breakdown of leverage ratio exposure measure components: Off-balance sheet items, derivatives, SFTs and trading book template (LV43.00.00.01), 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 RWEA of this item must be greater than or equal to zero.

In (LR4) Alternative breakdown of leverage ratio exposure measure components: Off-balance sheet items, derivatives, SFTs and trading book (LV43.00.00.01): every value in 7 rows (listed below) in column "RWEA" (column 0020) must be zero or more.

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 LV43.00.00.01 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

(LR4) Alternative breakdown of leverage ratio exposure measure components: Off-balance sheet items, derivatives, SFTs and trading book (LV43.00.00.01)

Rows

  • R0010Off-balance sheet items
  • R0020of which: Trade finance
  • R0030of which: Under official export credit insurance scheme
  • R0040Derivatives and SFTs subject to a cross-product netting agreement
  • R0050Derivatives not subject to a cross-product netting agreement
  • R0060SFTs not subject to a cross-product netting agreement
  • R0070Other assets belonging to the trading book

Column

  • C0020RWEA

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 blocking check.

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: LV43.00.00.01, r: 0010; 0020; 0030; 0040; 0050; 0060; 0070, c: 0020} >= 0

Every PRA banking rule on LV43.00.00.01

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.