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

Own funds (CA1): values must agree (C01.00.01.01, SC01.00.01.01, Bank of England check v0185_m)

A blocking check on the own funds (CA1) (C01.00.01.01) and own funds for SDDTs (CA1 SDDT) (SC01.00.01.01) templates, in the own funds (PRA001) and own funds for SDDTs (PRA116) returns.

Line4 Check runs it on the own funds (PRA001) and own funds for SDDTs (PRA116) returns, proven on test files, check by check: the same outcome on all six test files of those returns.

The rule in plain words

In column "Amount" (0010) of Own funds (CA1) (C01.00.01.01): "(-) Excess of deduction from T2 items over T2 Capital" (row 0720) must equal -1 multiplied by "Excess of deduction from T2 items over T2 Capital (deducted in AT1)" (row 0970).

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.

This is a blocking check. A return that fails it is normally rejected, so fix it before you submit. It runs only when your filing indicators mark C01.00.01 as reported.

The cells it reads

Own funds (CA1) (C01.00.01.01)

Rows

  • R0720(-) Excess of deduction from T2 items over T2 Capital
  • R0970Excess of deduction from T2 items over T2 Capital (deducted in AT1)

Column

  • C0010Amount

Own funds for SDDTs (CA1 SDDT) (SC01.00.01.01)

Rows

  • R0720(-) Excess of deduction from T2 items over T2 Capital
  • R0970Excess of deduction from T2 items over T2 Capital (deducted in AT1)

Column

  • C0010Amount

Which returns it applies to

Line4 Check runs it on the own funds (PRA001) and own funds for SDDTs (PRA116) returns on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds for SDDTs (PRA116) and 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:

v0185_m: [C01.00.01.01] {r0720, c0010} = -{r0970, c0010}
Show the formulaShow

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

{t: C01.00.01.01, r: 0720, c: 0010} = -1 * {t: C01.00.01.01, r: 0970, c: 0010}

Every PRA banking rule on C01.00.01.01

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.