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

Memorandum items for SDDTs (CA4 SDDT): the referenced cells shall be exceed or be equal to zero (SC04.00.01.01, Bank of England check boe_b1035_ss)

A blocking check on the memorandum items for SDDTs (CA4 SDDT) template (SC04.00.01.01), in the own funds for SDDTs (PRA116) return.

Line4 Check runs it on the own funds for SDDTs (PRA116) return, proven on test files, check by check: the same outcome on all three test files of that return.

The rule in plain words

The referenced cells shall be exceed or be equal to zero

In Memorandum items for SDDTs (CA4 SDDT) (SC04.00.01.01): every value in "Total fair valued assets and liabilities" (row 0870), "of which: Assets" (row 0880) and "of which: Liabilities" (row 0890) in column "Amount" (column 0010) 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 SC04.00.01 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Memorandum items for SDDTs (CA4 SDDT) (SC04.00.01.01)

Rows

  • R0870Total fair valued assets and liabilities
  • R0880of which: Assets
  • R0890of which: Liabilities

Column

  • C0010Amount

Which returns it applies to

Line4 Check runs it on the own funds for SDDTs (PRA116) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds for SDDTs (PRA116) returns, as a blocking check.

The Bank’s own words and formula

The first paragraph of the plain words above is the Bank of England’s own, word for word, from its list of validations. The second spells out its formula, with each cell named from its templates.

Show the formulaShow

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

{t: SC04.00.01.01, r: 0870; 0880; 0890, c: 0010} >=0

Every PRA banking rule on SC04.00.01.01

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.