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

Own funds requirements (CA2): a total must equal the sum of its parts (CP02.00.04.01, Bank of England check v0210_m)

A blocking check on the own funds requirements (CA2) template (CP02.00.04.01), in the capital+ actuals and forecasts (PRA112) return.

Line4 Check runs it on the capital+ actuals and forecasts (PRA112) 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

In column "Current reporting month" (0010) of Own funds requirements (CA2) (CP02.00.04.01): "Exposures subject to FIRB" (row 0250) must equal the sum of "Institutions" (row 0272), "Corporates - Financial and Large Corporates" (row 0295), "Corporates - Specialised Lending exposures" (row 0290), "Corporates - Other SME" (row 0296) and "Corporates - Other non-SME" (row 0297).

The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.

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  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.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 CP02.00.04 as reported.
  6. 06This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Own funds requirements (CA2) (CP02.00.04.01)

Rows

  • R0250Exposures subject to FIRB
  • R0272Institutions
  • R0290Corporates - Specialised Lending exposures
  • R0295Corporates - Financial and Large Corporates
  • R0296Corporates - Other SME
  • R0297Corporates - Other non-SME

Column

  • C0010Current reporting month

A worked example

With simple numbers.

Illustrative values
Institutions1,200
Corporates - Financial and Large Corporates800
Corporates - Specialised Lending exposures450
Corporates - Other SME300
Corporates - Other non-SME150
Together2,900
What the rule then expects

Exposures subject to FIRB must then be 2,900.

2,900Passes
3,000Fails

A file that reports 2,900 passes. One that reports 3,000 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 capital+ actuals and forecasts (PRA112) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to capital+ actuals and forecasts (PRA112) 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:

[v0210_m];[{t: CP02.00.04.01, r: 0250, c: 0010} = {t: CP02.00.04.01, r: 0272, c: 0010} + {t: CP02.00.04.01, r: 0295, c: 0010} + {t: CP02.00.04.01, r: 0290, c: 0010} + {t: CP02.00.04.01, r: 0296, c: 0010} + {t: CP02.00.04.01, r: 0297, c: 0010}]
Show the formulaShow

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

{t: CP02.00.04.01, r: 0250, c: 0010} = {t: CP02.00.04.01, r: 0272, c: 0010} + {t: CP02.00.04.01, r: 0295, c: 0010} + {t: CP02.00.04.01, r: 0290, c: 0010} + {t: CP02.00.04.01, r: 0296, c: 0010} + {t: CP02.00.04.01, r: 0297, c: 0010}

Every PRA banking rule on CP02.00.04.01

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.