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

Information on derivatives, securities financing and long settlement transactions of SDDTs (CCR SDDT): a total must equal the sum of its parts (SC34.00.01.01, Bank of England check boe_b0091_ss)

A blocking check on the information on derivatives, securities financing and long settlement transactions of SDDTs (CCR SDDT) template (SC34.00.01.01), 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

Total derivative, securities financing and long settlement transactions should equal the sum of the 'of which' rows for derivatives, securities financing and long settlement transactions

In each of "Notional amounts" (column 0010), "Long positions" (column 0020), "Short positions" (column 0030) and "AMOUNT" (column 0060) of Information on derivatives, securities financing and long settlement transactions of SDDTs (CCR SDDT) (SC34.00.01.01): "Total derivative, securities financing and long settlement transactions" (row 0010) must equal the sum of "of which: derivative transactions" (row 0020), "of which: securities financing transactions" (row 0050) and "of which: long settlement transactions" (row 0080).

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  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.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 SC34.00.01 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

Information on derivatives, securities financing and long settlement transactions of SDDTs (CCR SDDT) (SC34.00.01.01)

Rows

  • R0010Total derivative, securities financing and long settlement transactions
  • R0020of which: derivative transactions
  • R0050of which: securities financing transactions
  • R0080of which: long settlement transactions

Columns

  • C0010Notional amounts
  • C0020Long positions
  • C0030Short positions
  • C0060AMOUNT

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: SC34.00.01.01, r: 0010} = sum({t: SC34.00.01.01, r: 0020; 0050; 0080})

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

scope({t: SC34.00.01.01, c:0010;0020;0030;0060, f: banking, fv: banking_reporting_sddt})

Every PRA banking rule on SC34.00.01.01

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.