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

Own funds for SDDTs (CA1 SDDT): capital amounts should be positive or zero (SC01.00.03.01, Bank of England check boe_b0015_ss)

A warning on the own funds for SDDTs (CA1 SDDT) template (SC01.00.03.01), in the capital+ forecast annual for SDDTs and SDDT consolidation entities (PRA118) return.

Line4 Check runs it on the capital+ forecast annual for SDDTs and SDDT consolidation entities (PRA118) return, proven on test files, check by check: the same outcome on all eight test files of that return.

The rule in plain words

Capital amounts should be positive or zero

In Own funds for SDDTs (CA1 SDDT) (SC01.00.03.01): every value in 5 rows (listed below) in "Q4" (column 0050), "Q8" (column 0090) and "Year-end following Q8" (column 0100) 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 SC01.00.03 as reported.
  4. 04This is a warning. It does not stop the return on its own, but your supervisor may ask you to explain it.

The cells it reads

Own funds for SDDTs (CA1 SDDT) (SC01.00.03.01)

Rows

  • R0010Own funds
  • R0015Tier 1 capital
  • R0020Common equity tier 1 capital
  • R0530Additional tier 1 capital
  • R0750Tier 2 capital

Columns

  • C0050Q4
  • C0090Q8
  • C0100Year-end following Q8

Which returns it applies to

Line4 Check runs it on the capital+ forecast annual for SDDTs and SDDT consolidation entities (PRA118) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to capital+ forecast annual for SDDTs and SDDT consolidation entities (PRA118) returns, as a warning.

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: SC01.00.03.01, r: 0010; 0015; 0020; 0530; 0750, c: 0050; 0090; 0100} >= 0

Every PRA banking rule on SC01.00.03.01

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.