1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Own funds: a value must not be less than another (IR.23.01, Bank of England rule IR_bv0600)

A blocking check on the own funds template (IR.23.01), in the quarterly solo (QRS) and annual solo (ARS) returns.

The rule in plain words

The item "Total basic own funds after deductions Tier 1 restricted" should be equal or higher than "Total eligible own funds to meet the MCR Tier 1 restricted"

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 table below and find the cells the rule reads.
  2. 02Compare the values in your return. If the first is smaller than it may be, one of them is wrong: check both before you change either.
  3. 03It runs only when your filing indicators mark IR.23.01 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

Own funds (IR.23.01.01.01)

Rows

  • R0290Total basic own funds
  • R0550Total eligible own funds to meet the MCR

Column

  • C0030Tier 1 - restricted

Which returns it applies to

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

The Bank’s own words and formula

The plain words above are the Bank of England’s own, word for word, from its list of validations.

Show the formulaShow

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

{t: IR.23.01.01.01, r: R0290, c: C0030, z: Z0001} >= {t: IR.23.01.01.01, r: R0550, c: C0030, z: Z0001}

Every Solvency UK rule on IR.23.01

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.