Insurance Australia Group announced on 28 May 2026 that it has settled the Federal Court proceedings brought against it by Greensill Bank AG and its insolvency administrator, closing one chapter of a litigation that has shadowed the Australian insurer for more than four years. The settled proceedings carried an aggregate face value of approximately A$4 billion plus interest. IAG confirmed that the settlement will not materially impact the company’s financial position or its FY26 results. But the resolution is incomplete: remaining proceedings by Credit Suisse and White Oak entities carry an aggregate face value of approximately A$3 billion plus interest, and a five-month trial on those claims is scheduled to open in August 2026.
How BCC’s Overrun Broke Greensill’s Trade Finance Model
The litigation traces back to a single, documented underwriting failure. Bond and Credit Company (BCC Trade Credit Pty Ltd), a Sydney-based credit insurance underwriting agency half-owned by IAG until 9 April 2019, when IAG sold its 50% stake to Tokio Marine Management (Australasia), had been writing trade credit insurance for Greensill Capital’s supply chain finance facilities. BCC’s underwriting manager, Greg Brereton, had authority to write up to A$10 billion in Greensill guarantees between July 2019 and July 2020 — but wrote A$16 billion, exceeding his authorised limit by A$6 billion before being dismissed.
The overrun created a coverage position that IAG — now formally divested from BCC — and Tokio Marine were forced to defend when market conditions deteriorated. When BCC and its new ownership declined to renew the credit insurance facilities, Greensill’s supply chain financing model collapsed, triggering a liquidity crisis that sent Greensill Capital into insolvency in March 2021. The knock-on effect reached Credit Suisse, which had packaged Greensill’s receivables into billions in investment-grade supply chain funds — funds that were suspended and ultimately wound down, crystallising losses across institutional investors.
The settled proceedings were brought by Greensill Bank AG and its insolvency administrator Dr Michael C. Frege. The separate proceedings by Credit Suisse’s entities and White Oak Global Advisors were filed later: Credit Suisse launched its lawsuits against IAG in February 2022, following earlier suits filed by Greensill’s administrator and White Oak in late 2021. At their peak, the aggregate face value of all Federal Court proceedings against IAG exceeded A$7 billion plus interest — one of the largest insurance liability actions in Australian legal history.
The Settlement and What It Does Not Resolve
IAG’s settlement with Greensill Bank AG’s administrator removes the largest single block of claims — and the block most closely tied to the original policy issuance before IAG’s divestiture of BCC. The A$4 billion face value does not translate directly into IAG’s financial exposure; settlement terms were not disclosed, and IAG’s statement that the resolution carries no material financial impact suggests either significant legal defences were maintained or the settlement value was substantially below face. Neither scenario changes the structural lesson for the market.
What remains is materially complex. The Credit Suisse and White Oak proceedings — structured differently from the Greensill Bank AG claims because they relate to investment-product losses rather than direct bank lending — introduce a layer of causation and damages analysis that is expected to dominate the five-month trial beginning in August 2026. For IAG shareholders and the Australian P&C market, the litigation tail extends through at least early 2027. For the global trade credit insurance market, the August trial will produce the most detailed judicial examination yet of how insurer liability attaches — or does not — when a covered entity’s business model depends entirely on the continuous renewal of credit insurance.
The governance dimension is where the story has lasting market implications. BCC’s Brereton wrote A$6 billion above his limit without triggering any board-level alert — a failure that APRA’s updated governance standards directly address. Syndicates targeting long-tail specialty liability — the precise segment where trade credit and surety underwriting sits — must price in exactly this kind of multi-year liability exposure when valuing delegated authority programmes.
APRA’s CPS 510 Response: Boards Cannot Abrogate Delegated-Authority Oversight
The BCC/Greensill affair is now the canonical Australian case study for delegated underwriting authority gone wrong — and APRA’s regulatory response is direct. The revised CPS 510 Governance standard, effective 1 January 2024, is unambiguous on the board’s responsibility: “The Board must have mechanisms in place for monitoring the exercise of delegated authority. The Board cannot abrogate its responsibility for oversight of the functions delegated to management.” That sentence is written precisely against the factual pattern the Greensill episode produced.
APRA is not stopping at CPS 510. APRA intends to release updated CPS 510 and CPS 520 prudential standards for formal consultation in the first half of 2026, with the new governance framework to commence in 2028. The proposed reforms include tighter board monitoring of delegated underwriting authority and enhanced fit-and-proper requirements for senior underwriting managers — the two governance control points that failed in the BCC case. For insurers and reinsurers operating delegated authority programmes in Australia, the 2028 deadline is the implementation target but the compliance build-out should begin well before it.
The broader market signal extends beyond Australia. Lloyd’s market discipline in underwriting governance is often presented as a structural advantage of the syndicate model — the layered oversight of agent-of-agent authority chains, Lloyd’s performance management directorate review, and managing agent accountability creates multiple intervention points before an overrun of BCC’s scale could accumulate. The IAG/BCC precedent makes that structural point by negative example: where oversight is absent at the agency level and board monitoring is inadequate, a single underwriter’s authorised limit becomes functionally meaningless.
What the Precedent Means for Global Trade Credit and Delegated Authority Programmes
The most transferable lesson from the Greensill affair is that divestiture of an underwriting agency does not automatically extinguish liability for policies written during the ownership period. IAG sold its BCC stake in April 2019; BCC’s problematic underwriting occurred between July 2019 and July 2020 — after IAG had exited. Yet IAG spent four years defending proceedings. The legal theory underlying those claims — that IAG’s historical ownership created ongoing residual responsibility — was sufficiently credible to reach a settlement, even if its precise scope was not conceded. For any insurer exiting a delegated authority arrangement, the lesson is to obtain explicit contractual indemnities at point of sale, require run-off reserving from the acquirer, and document the transition of underwriting authority controls in board minutes that will hold up to subsequent judicial scrutiny.
