The Greensill Scandal: Five Years On, What Every UK Saver Must Learn From a £10 Billion Collapse

Greensill Capital started as a supply chain finance firm — a legitimate business where companies get paid early for their invoices at a discount. Under Lex Greensill, the model became something far more dangerous.

The firm began lending against "prospective receivables" — invoices for transactions that hadn't happened yet and might never happen. It then packaged these loans into bonds sold to Credit Suisse investment funds, which marketed them to investors as low-risk, short-term instruments. At its peak, Greensill had $143 billion in supply chain financing.

The house of cards depended on two things: insurance from Tokio Marine covering $4.6 billion of working capital, and continued faith from Credit Suisse. In July 2020, Tokio Marine discovered an employee had authorised coverage far exceeding risk limits and pulled the plug. Without insurance, the bonds were effectively unsellable.

By March 2021, Greensill couldn't repay a $140 million loan to Credit Suisse. The bank froze $10 billion in funds. Greensill Capital (UK) Limited and Greensill Capital Management Company (UK) Limited entered administration on 8 March 2021, according to the Insolvency Service. Investors in Credit Suisse's supply-chain funds faced losses estimated at up to $3 billion.

Greensill Capital Securities Limited operated in the UK as an appointed representative (AR) of Mirabella Advisors LLP. Under the AR regime, a firm can conduct regulated activities without its own FCA authorisation — it piggybacks on the licence of a "principal" firm.

The FCA investigated Mirabella's oversight of Greensill after the collapse. In December 2025, the FCA closed that investigation, concluding it "did not identify breaches that required further action." No fine. No enforcement. The principal firm walked away clean.

On 12 February 2026, HM Treasury published a consultation proposing the most significant legislative changes to the AR regime in over two decades. The reform has three pillars:

1. Principal Permission Gateway. Firms wanting to appoint ARs will need specific FCA permission — a new "principal permission" that the FCA can vary or revoke if oversight standards slip. Existing principals won't need to re-apply, but the FCA gains power to strip permission from underperforming firms.

2. Financial Ombudsman Service extension. The FOS will gain compulsory jurisdiction over certain AR-related complaints, including acts falling outside the regulated activities the principal authorised. Before this reform, consumers had limited redress routes.

3. Senior Managers regime for ARs. Key elements of the Senior Managers and Certification Regime (SM&CR) will apply to ARs, with a dedicated AR Senior Management Function holding principal firm leaders personally accountable for AR oversight.

The consultation closes on 9 April 2026. That's five years and one month after Greensill's collapse. Five years for a consultation paper — not legislation, not enforcement, a paper asking for opinions. The FCA Register still lists thousands of appointed representatives operating under this unreformed system.

Former Prime Minister David Cameron served as an adviser to Greensill Capital from 2018 and held stock options reportedly worth tens of millions of pounds. When Greensill ran into trouble, Cameron personally lobbied senior Treasury officials and ministers — including texting the Chancellor's personal phone — to get Greensill access to the Bank of England's Covid Corporate Financing Facility.

The House of Commons Treasury Committee's inquiry laid bare the extent of this access. Cameron sent messages to multiple officials, bypassing normal channels. The application was ultimately rejected, but the episode prompted a review of lobbying rules and exposed how former ministers can leverage relationships long after leaving office.

For savers, the lesson is pointed: political connections don't make a company safe. As our ISA guide explains, straightforward tax-wrapped products with established providers offer far better protection than any product that needs to name-drop its advisory board. If anything, a firm that needs to lobby for emergency government support is probably in worse shape than it's letting on.

On 18 March 2026, Mr Justice Trower dismissed Greensill's strike-out application, ruling that the Insolvency Service's claim has "a real prospect of success." The court confirmed that the government does not need to prove that the alleged misconduct caused the companies' insolvency — a significant legal point under the Company Directors Disqualification Act 1986.

The Secretary of State's case rests on three allegations: that Greensill mismanaged dealings with Katerra (the US construction company that itself went bankrupt), that he made misrepresentations to insurers, and that he failed to disclose insurance problems to company boards. A six-week trial is now listed for June 2026 — named one of The Lawyer's Top 20 Cases of 2026.

Meanwhile, German prosecutors have brought criminal charges against three individuals involved in running Greensill Bank. Grant Thornton, the administrators, have sued several former directors for breach of duty. And UBS — now the parent of Credit Suisse following its 2023 emergency takeover — is pursuing damages linked to Greensill investments in London.

Five years after the collapse: zero UK disqualifications, zero fines, zero imprisonments. The June trial could change that — or it could drag on further.

Greensill wasn't unique. The UK has a recurring pattern of financial collapses that share three features: complex products sold as safe, inadequate regulatory oversight, and glacial enforcement.

London Capital & Finance (2019): Sold unregulated mini-bonds to 11,600 retail investors, raising £237 million. The FCA missed warnings for years. Investors lost most of their money. The government eventually set up a compensation scheme covering 80% of losses — funded by taxpayers, not the regulator.

Woodford Equity Income Fund (2019): Neil Woodford's flagship fund froze £3.7 billion after investing heavily in illiquid, unquoted companies while marketing the fund as a mainstream equity income product. The FCA took until 2023 to conclude its investigation — with no enforcement action against Woodford himself.

Arch Cru (2009): Marketed as cautious, diversified funds. In reality, invested in illiquid property and obscure assets. £400 million frozen. FSCS eventually paid out £54 million to investors.

The common thread: products that sound safe, sold through channels that look regulated, with years-long enforcement timelines that leave victims waiting.

The Greensill collapse exposed a critical misunderstanding about financial protection in the UK. Many people assume the Financial Services Compensation Scheme covers everything. It doesn't.

FSCS protection for deposits covers up to £120,000 per eligible person, per bank — raised from £85,000 on 1 December 2025. Joint accounts are eligible for the same £120,000 per person. Qualifying temporary high balances — from a house sale, inheritance, or redundancy — get up to £1.4 million protection for six months.

For investments, the limit is £85,000 per firm. For bad pension advice, £85,000 per firm. But FSCS only covers regulated activities by FCA-authorised firms. If you invest through an appointed representative structure, or in an unregulated product like supply chain finance bonds, you may have no protection at all.

Greensill's products were structured so that most investors were institutions. But the principle applies to smaller investors too. Mini-bonds, peer-to-peer lending, unregulated collective investment schemes — these products sit outside FSCS protection, and they're still sold to ordinary people. Our investing hub covers the regulated alternatives.

The Bank of England base rate stands at 3.75%, meaning regulated savings accounts and Cash ISAs offer 4-5% returns. There is no rational reason for ordinary savers to chase yield in unregulated products. Our Cash ISA vs savings account guide breaks down which option pays more after tax.

1. Check the FCA Register — and check what you find. Before putting money anywhere, search the FCA Register for the firm. Verify it's directly authorised — not just an appointed representative. If it's an AR, understand who the principal is. The Greensill case showed that principal oversight can be minimal.

2. Know your FSCS limits. Your high street bank deposits are protected up to £120,000. A mini-bond promising 8% is probably not protected at all. If the product literature doesn't clearly state FSCS eligibility, assume it isn't covered. Our FSCS protection guide covers the full rules, and our savings hub lists FSCS-protected options.

3. If the yield looks too good, it is. With the base rate at 3.75%, any product offering materially more than 5% without taking equity risk is almost certainly taking risks you can't see. Greensill's funds were marketed as low-risk. They weren't.

4. Diversify across institutions, not just assets. FSCS limits are per institution. If you have more than £120,000 in savings, spread it across multiple banks — and check they hold separate banking licences, since some brands share licences. Our savings guide explains the groupings.

5. Ignore the celebrity endorsement. David Cameron's involvement didn't make Greensill safe. A former PM on the advisory board, a flashy office, or sponsorship of a football club tells you nothing about a company's financial health. Due diligence means reading accounts and checking the FCA Register, not reading names.

This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions.