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

Part 1: Overview: values to report together, or not at all (SR808.05.08.01, SR808.05.08.02, Bank of England check boe_b1143_m)

A blocking check on the part 1: Overview (SR808.05.08.01) and part 2: Transactions with central banks (SR808.05.08.02) templates, in the excluded activities and prohibitions (RFB008) return.

Line4 Check runs it on the excluded activities and prohibitions (RFB008) return, proven on test files, check by check: the same outcome on all eight test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

In Part 1: Overview (SR808.05.08.01): either "There has been no use of the exemptions in article 8 of the Order during this reporting period" in column "Current period" (row 010, column 010) is "No use of the exemptions in article 8 of the Order" and "Central bank counterparty" (column 010), "Transaction value" (column 030) and "Number of transactions" (column 040) in Part 2: Transactions with central banks (SR808.05.08.02) is left empty, or "There has been no use of the exemptions in article 8 of the Order during this reporting period" in column "Current period" (row 010, column 010) is "Use of the exemptions in article 8 of the Order" and "Central bank counterparty" (column 010), "Transaction value" (column 030) and "Number of transactions" (column 040) in Part 2: Transactions with central banks (SR808.05.08.02) is reported.

The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02Report these values together, or leave them all out.
  3. 03It runs only when your filing indicators mark SR808.05.08 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Part 1: Overview (SR808.05.08.01)

Row

  • R010There has been no use of the exemptions in article 8 of the Order during this reporting period.

Column

  • C010Current period

Part 2: Transactions with central banks (SR808.05.08.02)

Columns

  • C010Central bank counterparty
  • C030Transaction value
  • C040Number of transactions

Which returns it applies to

Line4 Check runs it on the excluded activities and prohibitions (RFB008) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to excluded activities and prohibitions (RFB008) returns, as a blocking check.

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:

boe_b1143_m: T1: SR808.05.08.01; T2: SR808.05.08.02; Expression: ({SR808.05.08.01, r010, c010} = [boe_SR:x6021] and empty({SR808.05.08.02, c010-040})) or ({SR808.05.08.01, r010, c010} = [boe_SR:x6022] and not(empty({SR808.05.08.02, c010-040})))
Show the formulaShow

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

({t: SR808.05.08.01, r: 010, c: 010} = [boe_SR:x6021] and isNull({t: SR808.05.08.02, c: 010; 030; 040})) or ({t: SR808.05.08.01, r: 010, c: 010} = [boe_SR:x6022] and not(isNull({t: SR808.05.08.02, c: 010; 030; 040})))

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.