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

If "Compliance with the retention requirement?" is true, "Type of retention applied" must be reported (C14.00.01.01, SC14.00.01.01, Bank of England check v8787_m)

A warning on the detailed information on securitisations (CR SEC Details) (C14.00.01.01) and detailed information on securitisations for SDDTs (SEC Details SDDT) (SC14.00.01.01) 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 Detailed information on securitisations (CR SEC Details) (C14.00.01.01): if "Compliance with the retention requirement?" (column 0100) is true, "Type of retention applied" (column 0080) must be reported.

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your return. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03It runs only when your filing indicators mark C14.00.01 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

Detailed information on securitisations (CR SEC Details) (C14.00.01.01)

Columns

  • C0080Type of retention applied
  • C0100Compliance with the retention requirement?

Detailed information on securitisations for SDDTs (SEC Details SDDT) (SC14.00.01.01)

Columns

  • C0080Type of retention applied
  • C0100Compliance with the retention requirement?

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 warning.

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:

v8787_m: [C14.00.01.01 (All rows)] if {c0100} = TRUE then {c0080} != empty
Show the formulaShow

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

if {t: C14.00.01.01, c: 0100} = true() then not(isNull({t: C14.00.01.01, c: 0080})) else true()

Every PRA banking rule on C14.00.01.01

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.