1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Item “Underlying asset category” in Collective investment undertakings - look-through approach should be reported (IR.06.03, Bank of England rule IR_bv0748_01)

A blocking check on the collective investment undertakings - look-through approach template (IR.06.03), in the quarterly solo (QRS), quarterly group (QRG), annual solo (ARS) and annual group (ARG) returns.

The rule in plain words

Item “Underlying asset category” in Collective investment undertakings - look-through approach (IR.06.03.01.01) should be reported

What to do if your return fails it

  1. 01Open the table 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 IR.06.03 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

Collective investment undertakings - look-through approach (IR.06.03.01.01)

Columns

  • C0030Underlying asset category
  • C0040Country of issue
  • C0050Currency
  • C0060Total amount

Which returns it applies to

Line4 Check runs it on quarterly solo (QRS), quarterly group (QRG), annual solo (ARS) and annual group (ARG) returns on Bank of England taxonomy 2.2.0. The Bank of England applies it to quarterly solo (QRS), annual solo (ARS), quarterly group (QRG) and annual group (ARG) returns, as a blocking check.

The Bank’s own words and formula

In the Bank of England’s list of validations, word for word:

Item “Underlying asset category” in IR.06.03.01.01 - Collective investment undertakings - look-through approach should be reported
Show the formulaShow

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

if (not(isNull({t: IR.06.03.01.01, c: C0040, z: Z0001})) or not(isNull({t: IR.06.03.01.01, c: C0050, z: Z0001})) or not(isNull({t: IR.06.03.01.01, c: C0060, z: Z0001}))) then not(isNull({t: IR.06.03.01.01, c: C0030, z: Z0001})) else true()

Every Solvency UK rule on IR.06.03

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.