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

'Collateral provided to lender by borrower (period average)' amount must be higher than or equal to zero (LV51.00.00.01, Bank of England check boe_b0059)

A blocking check on the (LR8) Treatment of agency repurchase transactions template (LV51.00.00.01), in the contingent leverage (LVR002) return.

Line4 Check runs it on the contingent leverage (LVR002) return, proven on test files, check by check: the same outcome on all eight test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

'Collateral provided to lender by borrower (period average)' amount must be higher than or equal to zero

In each of "Agency repo activity in which agent provides a limited guarantee" (row 0010) and "Agency repo activity in which agent provides no guarantee" (row 0020) of (LR8) Treatment of agency repurchase transactions (LV51.00.00.01): every value in "Collateral provided to lender by borrower (period average)" (column 0050) 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 LV51.00.00 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

(LR8) Treatment of agency repurchase transactions (LV51.00.00.01)

Rows

  • R0010Agency repo activity in which agent provides a limited guarantee
  • R0020Agency repo activity in which agent provides no guarantee

Column

  • C0050Collateral provided to lender by borrower (period average)

Which returns it applies to

Line4 Check runs it on the contingent leverage (LVR002) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to contingent leverage (LVR002) 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: LV51.00.00.01, c: 0050} >= 0

Where it applies, in the Bank's words (its scope):

scope({t: LV51.00.00.01, r:0010;0020, f: banking, fv: leverage 2023-05-11})

Every PRA banking rule on LV51.00.00.01

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.