Line4

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

"Total" must equal the sum of 8 cells (C34.08.01.02, Bank of England check v10477_m)

A warning on the counterparty credit risk: composition of collateral for CCR exposures - Collateral used in SFTs (CCR 8) template (C34.08.01.02), 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 each of 9 columns (listed below) of Counterparty credit risk: composition of collateral for CCR exposures - Collateral used in SFTs (CCR 8) (C34.08.01.02): "Total" (row 0090) must equal the sum of 8 cells (listed below).

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Add up the parts in your return and compare the result with the total.
  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.
  4. 04The Bank of England allows a small rounding difference, worked out from the decimals each value is reported with.
  5. 05It runs only when your filing indicators mark C34.08.01 as reported.
  6. 06This 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

Counterparty credit risk: composition of collateral for CCR exposures - Collateral used in SFTs (CCR 8) (C34.08.01.02)

Rows

  • R0010Cash - domestic currency
  • R0020Cash - other currencies
  • R0030Domestic sovereign debt
  • R0040Other sovereign debt
  • R0050Government agency debt
  • R0060Corporate bonds
  • R0070Equity securities
  • R0080Other collateral
  • R0090Total

Columns

  • C0050Initial margin
  • C0060Variation margin
  • C0070Initial margin
  • C0080Variation margin
  • C0140Initial margin
  • C0150Variation margin
  • C0160Initial margin
  • C0170Variation margin
  • C0180SFT security

A worked example

With simple numbers.

Illustrative values
Cash - domestic currency1,200
Cash - other currencies800
Domestic sovereign debt450
Other sovereign debt300
Government agency debt150
Corporate bonds100
Equity securities60
Other collateral40
Together3,100
What the rule then expects

Total must then be 3,100.

3,100Passes
3,200Fails

A file that reports 3,100 passes. One that reports 3,200 fails, by 100.

The numbers are illustrative, reported to the unit, so the rounding tolerance does not change the result.

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:

[v10477_m];[scope({t: C34.08.01.02, c:0050;0060;0070;0080;0140;0150;0160;0170;0180})];[{t: C34.08.01.02, r: 0090} = {t: C34.08.01.02, r: 0010} + {t: C34.08.01.02, r: 0020} + {t: C34.08.01.02, r: 0030} + {t: C34.08.01.02, r: 0040} + {t: C34.08.01.02, r: 0050} + {t: C34.08.01.02, r: 0060} + {t: C34.08.01.02, r: 0070} + {t: C34.08.01.02, r: 0080}]
Show the formulaShow

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

{t: C34.08.01.02, r: 0090} = {t: C34.08.01.02, r: 0010} + {t: C34.08.01.02, r: 0020} + {t: C34.08.01.02, r: 0030} + {t: C34.08.01.02, r: 0040} + {t: C34.08.01.02, r: 0050} + {t: C34.08.01.02, r: 0060} + {t: C34.08.01.02, r: 0070} + {t: C34.08.01.02, r: 0080}

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

scope({t: C34.08.01.02, c:0050;0060;0070;0080;0140;0150;0160;0170;0180, f: banking, fv: banking_reporting})

Every PRA banking rule on C34.08.01.02

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.