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

Total (specialised lending slotting approach) is the sum of the stated rows (OF08.06.01.01, Bank of England check boe_b0815)

A blocking check on the credit risk and free deliveries: IRB approach to capital requirements: specialised lending slotting approach (CR IRB 6) template (OF08.06.01.01), in the own funds (PRA001) return.

Line4 Check runs it on the own funds (PRA001) return, proven on test files, check by check: the same outcome on all three test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

Total (specialised lending slotting approach) is the sum of the stated rows

In each of 10 columns (listed below) of Credit risk and free deliveries: IRB approach to capital requirements: specialised lending slotting approach (CR IRB 6) (OF08.06.01.01): "Total" (row 0095) must equal the sum of 7 rows (listed below).

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  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.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 OF08.06.01 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

Credit risk and free deliveries: IRB approach to capital requirements: specialised lending slotting approach (CR IRB 6) (OF08.06.01.01)

Rows

  • R0005Preferential
  • R0035Other
  • R0045Less than 2.5 years remaining until maturity
  • R0055Other
  • R0065Satisfactory
  • R0075Weak
  • R0085Default
  • R0095Total

Columns

  • C0010Original exposure pre-conversion factors
  • C0020Exposure after CRM substitution effects pre-conversion factors
  • C0030Of which: off-balance sheet items
  • C0031(-) Change in exposure due to FCCM
  • C0040Exposure value
  • C0050Of which: off-balance sheet items
  • C0060Of which: arising from counterparty credit risk
  • C0080Risk-weighted exposure amount
  • C0090Expected loss amount
  • C0100(-) Value adjustments and provisions

Which returns it applies to

Line4 Check runs it on the own funds (PRA001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds (PRA001) 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: OF08.06.01.01, r: 0095} = sum({t: OF08.06.01.01, r: 0005; 0035; 0045; 0055; 0065; 0075; 0085})

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

scope({t: OF08.06.01.01, c:0010;0020;0030;0031;0040;0050;0060;0080;0090;0100, f: banking, fv: banking_reporting})

Every PRA banking rule on OF08.06.01.01

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.