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2 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Non-life outwards reinsurance contract reinsurer exposures and 3 other templates: the format of a code or text (IR.30.04, IR.30.08, IR.31.01 and others, Bank of England rule IR_bv2641)

A blocking check on the non-life outwards reinsurance contract reinsurer exposures (IR.30.04), life outwards non-proportional reinsurance (IR.30.08), outwards reinsurance balance sheet exposures (IR.31.01) and life outwards proportional reinsurance (IR.30.07) templates, in the annual solo (ARS), annual group (ARG) and annual third-country branch (ARB) returns.

Check your file for this ruleWhat to do if it fails

The rule in plain words

The item "Reinsurer identification code and type of code" (IR.30.04.01.01 C0050) is not in a valid format: a code starting with LSY/ should be LSY/ followed by four digits

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. 02Compare the code or text in your return with the format the rule sets out, character by character, including any prefix and any spaces.
  3. 03This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Non-life outwards reinsurance contract reinsurer exposures (IR.30.04.01.01)

Columns

  • C0100Share reinsurer (%)
  • C0110Exposure ceded for reinsurer's share per risk or event
  • C0120Type of collateral (if applicable)
  • C0160Estimated outwards reinsurance premium for reinsurer's share
  • C0170Annotations
  • C0180Exposure ceded for reinsurer's share per contract
  • C0190Value of collateral
  • C0200Transaction with related party on an arms-length basis

Life outwards proportional reinsurance (IR.30.07.01.01)

Columns

  • C0040Reinsured benefit / value of benefits (excluding longevity swaps)
  • C0050Value of annuity premiums / payments to reinsurer
  • C0060Value of annuity claims / payments from reinsurer

Life outwards non-proportional reinsurance (IR.30.08.01.01)

Columns

  • C0040Cover event
  • C0050Gross benefit for business covered
  • C0060Amount of reinsurance cover
  • C0070Lower threshold claims ratio
  • C0080Upper threshold claims ratio
  • C0090Proportion reinsured between thresholds
  • C0100Annual premium

Outwards reinsurance balance sheet exposures (IR.31.01.01.01)

Columns

  • C0060Reinsurance recoverables: Premium provision Non-life including Non-SLT Health
  • C0070Reinsurance recoverables: Provision for claims outstanding Non-life including Non-SLT Health
  • C0080Reinsurance recoverables: Technical provisions Life including SLT Health
  • C0090Adjustment for expected losses due to counterparty default
  • C0100Reinsurance recoverables: Total reinsurance recoverables
  • C0110Net receivables
  • C0120Asset arrangements as collateral to support the reinsurer exposure
  • C0130Financial guarantees as collateral to support the reinsurer exposure
  • C0140Cash deposits
  • C0150Total guarantees / collateral in place
  • C0160Reinsurance receivables - Non-life and life claims debts past due
  • C0170Reinsurance receivable - Non-life and life Commissions and Premiums debts
  • C0180Reinsurance recoverables in dispute
  • C0190Reinsurance recoverables written-off
  • C0200The reinsurer’s share of premiums written
  • C0210Supporting comments

Outwards reinsurance balance sheet exposures (IR.31.01.04.01)

Columns

  • C0010Legal name of reinsured undertaking
  • C0060Reinsurance recoverables: Premium provision Non-life including Non-SLT Health
  • C0070Reinsurance recoverables: Provision for claims outstanding Non-life including Non-SLT Health
  • C0080Reinsurance recoverables: Technical provisions Life including SLT Health
  • C0090Adjustment for expected losses due to counterparty default
  • C0100Reinsurance recoverables: Total reinsurance recoverables
  • C0110Net receivables
  • C0120Asset arrangements as collateral to support the reinsurer exposure
  • C0130Financial guarantees as collateral to support the reinsurer exposure
  • C0140Cash deposits
  • C0150Total guarantees / collateral in place
  • C0160Reinsurance receivables - Non-life and life claims debts past due
  • C0170Reinsurance receivable - Non-life and life Commissions and Premiums debts
  • C0180Reinsurance recoverables in dispute
  • C0190Reinsurance recoverables written-off
  • C0200The reinsurer’s share of premiums written
  • C0210Supporting comments

Which returns it applies to

Line4 Check runs it on annual solo (ARS), annual group (ARG) and annual third-country branch (ARB) returns on Bank of England taxonomy 2.2.0. The Bank of England applies it to annual third-country branch (ARB), annual solo (ARS) 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:

dim:RF doesn't follow Lloyd’s Syndicate Code (LSY) pattern of "LSY/" followed by four digits.
Show the formulaShow

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

if matches(dim($v0,$[s2c_dim:RF]), "^LSY/.*") then matches(dim($v0,$[s2c_dim:RF]), "^LSY/[0-9]{4}$") else true()

Every Solvency UK rule on IR.30.04

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.