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

SDDTs aren’t subject to CRDIV buffers so these rows should be the same (Tier 1) (SC03.00.01.01, Bank of England check boe_b0115_ss)

A blocking check on the capital adequacy - capital ratios and capital levels for SDDTs (CA3 SDDT) template (SC03.00.01.01), 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

SDDTs aren’t subject to CRDIV buffers so these rows should be the same (Tier 1)

In column "Amount" (0010) of Capital adequacy - capital ratios and capital levels for SDDTs (CA3 SDDT) (SC03.00.01.01): "OCR: to be made up of Tier 1" (row 0180) must equal "TCR: to be made up of Tier 1 capital" (row 0150).

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02The two values must be the same. Find which of the two is right, and correct the other one.
  3. 03The Bank of England allows a small rounding difference, worked out from the decimals each value is reported with.
  4. 04It runs only when your filing indicators mark SC03.00.01 as reported.
  5. 05This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Capital adequacy - capital ratios and capital levels for SDDTs (CA3 SDDT) (SC03.00.01.01)

Rows

  • R0150TCR: to be made up of Tier 1 capital
  • R0180OCR: to be made up of Tier 1

Column

  • C0010Amount

A worked example

With simple numbers.

Illustrative values
TCR: to be made up of Tier 1 capital1,200
What the rule then expects

OCR: to be made up of Tier 1 must then be 1,200.

1,200Passes
1,300Fails

A file that reports 1,200 passes. One that reports 1,300 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 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: SC03.00.01.01, r: 0180, c: 0010} = {t: SC03.00.01.01, r: 0150, c: 0010}

Every PRA banking rule on SC03.00.01.01

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.