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

Group solvency: information on affiliates (GS): a total must equal the sum of its parts (C06.02.01.01, Bank of England check v6289_m)

A blocking check on the group solvency: information on affiliates (GS) template (C06.02.01.01), 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 Group solvency: information on affiliates (GS) (C06.02.01.01): "Combined buffer requirements" (column 0410) must equal "Capital conservation buffer" (column 0420) plus "Institution specific countercyclical buffer" (column 0430) plus "Conservation buffer due to macro-prudential or systemic risk identified at the level of A member state" (column 0440) plus "Systemic risk buffer" (column 0450) plus the larger of "Global systemically important institution buffer" (column 0470) and "Other systemically important institution buffer" (column 0480).

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  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.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 C06.02.01 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

Group solvency: information on affiliates (GS) (C06.02.01.01)

Columns

  • C0410Combined buffer requirements
  • C0420Capital conservation buffer
  • C0430Institution specific countercyclical buffer
  • C0440Conservation buffer due to macro-prudential or systemic risk identified at the level of A member state
  • C0450Systemic risk buffer
  • C0470Global systemically important institution buffer
  • C0480Other systemically important institution buffer

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:

v6289_m: [C06.02.01.01 (All rows)] {c0410} = {c0420} + {c0430} + {c0440} + {c0450} + max({c0470}, {c0480})
Show the formulaShow

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

{t: C06.02.01.01, c: 0410} = {t: C06.02.01.01, c: 0420} + {t: C06.02.01.01, c: 0430} + {t: C06.02.01.01, c: 0440} + {t: C06.02.01.01, c: 0450} + max({t: C06.02.01.01, c: 0470}, {t: C06.02.01.01, c: 0480})

Every PRA banking rule on C06.02.01.01

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.