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

Original exposure pre conversion factors consistency check for total CIUs (OF09.01.01.01, OF07.00.01.01, SC09.01.01.01 and others, Bank of England check boe_b0249)

A warning on the geographical breakdown of exposures by residence of the obligor: SA exposures (OF CR GB 1) (OF09.01.01.01), credit and counterparty credit risks and free deliveries: standardised approach to capital requirements (CR SA) (OF07.00.01.01), geographical breakdown of exposures by residence of the obligor (SA EXPOSURES) (CR GB 1) (SC09.01.01.01) and credit and counterparty credit risks and free deliveries: standardised approach to capital requirements for SDDTs (CR SA SDDT) (SC07.00.01.01) 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

ORIGINAL EXPOSURE PRE CONVERSION FACTORS consistency check for TOTAL CIUs

In Geographical breakdown of exposures by residence of the obligor: SA exposures (OF CR GB 1) (OF09.01.01.01): "Collective investments undertakings (CIU)" in column "Original exposure pre conversion factors" (row 0140, column 0010) (where country where the exposure is generated is "All countries") must equal "Total exposures" in column "Original exposure pre conversion factors" (row 0010, column 0010) on sheet "Exposures in the form of units or shares in collective investment undertakings (‘CIUs’)" (sheet 0015) in Credit and counterparty credit risks and free deliveries: standardised approach to capital requirements (CR SA) (OF07.00.01.01).

What to do if your return fails it

  1. 01Open the tables 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 OF07.00.01 and OF09.01.01 as reported.
  5. 05This 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

Credit and counterparty credit risks and free deliveries: standardised approach to capital requirements (CR SA) (OF07.00.01.01)

Row

  • R0010Total exposures

Column

  • C0010Original exposure pre conversion factors

Sheet

  • S0015Exposures in the form of units or shares in collective investment undertakings (‘CIUs’)

Geographical breakdown of exposures by residence of the obligor: SA exposures (OF CR GB 1) (OF09.01.01.01)

Row

  • R0140Collective investments undertakings (CIU)

Column

  • C0010Original exposure pre conversion factors

Credit and counterparty credit risks and free deliveries: standardised approach to capital requirements for SDDTs (CR SA SDDT) (SC07.00.01.01)

Row

  • R0010Total exposures

Column

  • C0010Original exposure pre conversion factors

Sheet

  • S0015Exposures in the form of units or shares in collective investment undertakings (‘CIUs’)

Geographical breakdown of exposures by residence of the obligor (SA EXPOSURES) (CR GB 1) (SC09.01.01.01)

Row

  • R0140Collective investments undertakings (CIU)

Column

  • C0010Original exposure pre conversion factors

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 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: OF09.01.01.01, r: 0140, c: 0010, filter: [eba_dim:CEG] = [eba_GA:x1]} = {t: OF07.00.01.01, r: 0010, c: 0010, z: 0015}

Every PRA banking rule on OF09.01.01.01

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.