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

Prudent valuation: fair-valued assets and liabilities (PRUVAL 1): every value in 19 rows in 6 columns must be zero or more (C32.01.01.01, Bank of England check v6566_s)

A warning on the prudent valuation: fair-valued assets and liabilities (PRUVAL 1) template (C32.01.01.01), 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 Prudent valuation: fair-valued assets and liabilities (PRUVAL 1) (C32.01.01.01): every value in 19 rows (listed below) in 6 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 C32.01.01 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

Prudent valuation: fair-valued assets and liabilities (PRUVAL 1) (C32.01.01.01)

Rows

  • R0010Total fair-valued assets and liabilities
  • R0020Total fair-valued assets
  • R0030Financial assets held for trading
  • R0040Trading financial assets
  • R0050Non-trading financial assets mandatorily at fair value through profit or loss
  • R0060Financial assets designated at fair value through profit or loss
  • R0070Financial assets at fair value through other comprehensive income
  • R0080Non-trading non-derivative financial assets measured at fair value through profit or loss
  • R0090Non-trading non-derivative financial assets measured at fair value to equity
  • R0100Other non-trading non-derivative financial assets
  • R0110Derivatives - hedge accounting
  • R0120Fair value changes of the hedged items in portfolio hedge of interest rate risk
  • R0130Investments in subsidiaries, joint ventures and associates
  • R0150Total fair-valued liabilities
  • R0160Financial liabilities held for trading
  • R0170Trading financial liabilities
  • R0180Financial liabilities designated at fair value through profit or loss
  • R0190Derivatives - hedge accounting
  • R0210Haircuts for trading liabilities at fair value

Columns

  • C0010Fair-valued assets and liabilities
  • C0020of which: trading book
  • C0050Prudential filters
  • C0060Other
  • C0080Fair-valued assets and liabilities included in art. 4(1) threshold
  • C0090of which: trading book

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:

v6566_s: [C32.01.01.01 (r0010;0020;0030;0040;0050;0060;0070;0080;0090;0100;0110;0120;0130;0150;0160;0170;0180;0190;0210, c0010;0020;0050;0060;0080;0090)] >= 0
Show the formulaShow

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

{t: C32.01.01.01, r: 0010; 0020; 0030; 0040; 0050; 0060; 0070; 0080; 0090; 0100; 0110; 0120; 0130; 0150; 0160; 0170; 0180; 0190; 0210, c: 0010; 0020; 0050; 0060; 0080; 0090} >= 0

Every PRA banking rule on C32.01.01.01

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.