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

Prudent valuation: concentrated positions AVA (PRUVAL 4): every value in 5 columns must be zero or more (C32.04.01.01, Bank of England check v7301_s)

A blocking check on the prudent valuation: concentrated positions AVA (PRUVAL 4) template (C32.04.01.01), 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.

The rule in plain words

In Prudent valuation: concentrated positions AVA (PRUVAL 4) (C32.04.01.01): every value in 5 columns (listed below) 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 C32.04.01 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

Prudent valuation: concentrated positions AVA (PRUVAL 4) (C32.04.01.01)

Columns

  • C0040Concentrated position size
  • C0060Market value
  • C0070Prudent exit period (days)
  • C0080Concentrated position AVA
  • C0090Concentrated position fair value adjustment

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 blocking check.

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:

v7301_s: [C32.04.01.01 (All rows, c0040;0060;0070;0080;0090)] {C32.04.01.01} >= 0
Show the formulaShow

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

{t: C32.04.01.01, c: 0040; 0060; 0070; 0080; 0090} >= 0

Every PRA banking rule on C32.04.01.01

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.