Insolvency Tests under Section 123 Insolvency Act 1986: A UK director's guide

The section 123 tests are foundational because so much else turns on them. Specifically:

• ›Director duties. Once a company satisfies (or is bordering on satisfying) the section 123 tests, the duties under sections 171–177 of the Companies Act 2006 are modified — the duty to consider creditor interests under s.172(3) becomes engaged. Continuing to act with shareholder-only focus risks claims under section 172 and section 212 (misfeasance).
• ›Wrongful trading. Section 214 IA 1986 creates personal director liability where directors continue trading after the point at which they knew (or ought to have concluded) that there was no reasonable prospect of avoiding insolvent liquidation. Section 123 satisfaction is the central evidential gateway.
• ›Transactional avoidance. Transactions at undervalue (s.238) and preferences (s.239) are vulnerable to challenge by a subsequent IP if entered into when the company was unable to pay its debts within section 123 — the "relevant time" for these provisions is partly defined by reference to s.123.
• ›Winding-up petitions. Under s.122(1)(f), a creditor or other qualifying applicant can petition for the company's compulsory winding-up where the company is unable to pay its debts within s.123.
• ›Personal guarantees and contractual triggers. Many commercial contracts (loan facilities, supplier agreements, leases) define "insolvency events" by reference to s.123, so the test is the gateway for contractual default and acceleration as well.

For directors, the practical importance is therefore not whether section 123 is technically satisfied at any particular moment — it is whether a subsequent IP, court, or counterparty will conclude in retrospect that the test was satisfied at the relevant point. The tests are in practice assessed retrospectively, often years after the event. This makes contemporaneous documentation of director decision-making, professional advice taken, and the company's position at key dates materially important.

Section 123 sets out four routes by which a company is deemed unable to pay its debts. Any one of them being satisfied is sufficient.

Section 123(1)(a) — unsatisfied statutory demand

A creditor owed more than £750 serves a statutory demand at the company's registered office requiring payment within 21 days, and the company fails to pay, secure, or compound for the debt. After 21 days, the company is deemed unable to pay its debts.

Critical position on the threshold: the £750 threshold under s.123(1)(a) is the current position. The threshold was raised temporarily to £10,000 during the COVID-19 period under the Corporate Insolvency and Governance Act 2020 (and subsequent extensions), but has reverted to £750. Creditors can therefore use the s.123(1)(a) route for relatively modest debts. A statutory demand for £751 that goes unsatisfied for 21 days produces deemed insolvency.

In practice, the s.123(1)(a) route is the most commonly cited basis for winding-up petitions — the unsatisfied statutory demand provides clean evidential proof of insolvency without requiring detailed financial analysis. The form of the statutory demand is prescribed (Form SD1 under the Insolvency Rules 2016 in England and Wales, Rule 7.3); service must be at the company's registered office.

Section 123(1)(b)–(d) — unsatisfied execution

These provisions cover three jurisdictional variants of an unsatisfied judgment debt: s.123(1)(b) (England and Wales) — execution or other process issued on a judgment is returned wholly or partly unsatisfied; s.123(1)(c) (Scotland) — the induciae of a charge for payment on an extract decree have expired without payment; s.123(1)(d) (Northern Ireland) — a certificate of unenforceability has been granted in respect of a judgment.

These routes are less commonly used as the basis for petitions because they require prior judgment and execution attempt — a longer procedural path than the s.123(1)(a) route. They remain available where statutory demand procedure has not been followed or where the debt was already pursued through the judgment route.

Section 123(1)(e) — the cash flow test

Section 123(1)(e) provides that the company is deemed unable to pay its debts "if it is proved to the satisfaction of the court that the company is unable to pay its debts as they fall due." This is the cash flow test — the test that captures the practical reality of a company that cannot meet obligations as they crystallise.

The cash flow test does not require a formal demand or petition. A court can be satisfied of cash flow insolvency on evidence of: pattern of unpaid creditors despite repeated chasing; multiple bounced payments or returned cheques; inability to pay current taxes (VAT, PAYE, CT); refusal of bank facilities or finance applications; pattern of preferring some creditors over others to manage cash flow; or qualified going-concern audit opinions. No single factor is conclusive; the court looks at the totality of evidence.

Section 123(2) — the balance sheet test

Section 123(2) provides that the company is also deemed unable to pay its debts "if it is proved to the satisfaction of the court that the value of the company's assets is less than the amount of its liabilities, taking into account its contingent and prospective liabilities."

The balance sheet test was for many years interpreted in different ways by lower courts — some focusing on accounting numbers, others on commercial reality. The Supreme Court resolved the position in BNY v Eurosail [2013] UKSC 28, which is the leading authority and is treated in detail in the balance sheet section below.

The cash flow test is the central operational test for trading companies. The Court of Appeal in In re Cheyne Finance plc [2007] EWHC 2402 (Ch) confirmed that the cash flow test extends beyond strict day-to-day cash position — it requires the court to consider "debts falling due from time to time in the reasonably near future", not just literally today's position.

Specifically, the cash flow test in practice considers:

• ›Currently outstanding debts. Creditors that the company cannot pay today, or that it has been unable to pay over a sustained recent period.
• ›Debts falling due in the reasonably near future. Forecast obligations (rent, PAYE, VAT, CT, supplier payments) that the company will not be able to meet on the available evidence.
• ›Available cash and credit. Cash on hand, available drawdown on facilities, realistic refinancing prospects, and other near-term liquidity sources.
• ›Trading position. Whether ongoing trading is generating sufficient cash to meet obligations or, conversely, whether trading losses are increasing the gap.

The cash flow test does not require the company to be unable to pay every debt as it falls due. A pattern of inability to meet material obligations, combined with no realistic prospect of remediation in the near term, is sufficient. Conversely, a company that has missed one or two payments due to administrative issues but otherwise has the capacity to meet obligations is unlikely to be cash-flow insolvent.

Practical indicators

Indicators of cash flow insolvency that IPs and courts commonly examine:

• ›HMRC arrears across multiple periods (VAT, PAYE, CT) — often the strongest single indicator.
• ›Trade creditor pressure: County Court Judgments, statutory demands received, ongoing creditor chasing.
• ›Bounced cheques or failed direct debits.
• ›Overdrawn position at the bank or rejected payment instructions.
• ›Pattern of preferring some creditors (often connected creditors or those whose continued supply is critical) while others go unpaid.
• ›Loss of credit insurance cover or supplier credit terms.
• ›Failed Time to Pay applications or breached TTP arrangements.

Where multiple of these indicators are present concurrently, the cash flow test is materially likely to be satisfied.

The Eurosail facts

Eurosail-UK 2007-3BL plc was a special purpose vehicle established for a securitisation transaction. It had issued multiple classes of loan notes funded by an underlying portfolio of mortgage loans. Currency mismatches and interest rate movements (combined with the financial crisis) produced a substantial net liability position on Eurosail's balance sheet — the latest audited balance sheet showed a deficit of over £74 million. Some of the loan notes had maturity dates 30+ years in the future.

BNY Corporate Trustee Services, the trustee for Noteholders, contended that Eurosail had reached "insolvency" as defined in the loan note documentation by reference to s.123(2). If Eurosail was balance sheet insolvent in this sense, an event of default would have been triggered, allowing acceleration and enforcement. Eurosail (supported by some of the Noteholders who would lose value on acceleration) argued that the s.123(2) test required something more than mechanical balance sheet comparison.

The 'point of no return' framing

The Supreme Court unanimously confirmed that Eurosail was not balance sheet insolvent within s.123(2). The leading judgment, given by Lord Walker (with whom the other Justices agreed), rejected the mechanical interpretation of s.123(2) under which a company is balance sheet insolvent whenever audited accounts show net liabilities.

Lord Walker held that the proper question under s.123(2) is whether the court is satisfied, on the balance of probabilities, that the company has reached "the point of no return" — the point at which it is no longer reasonable to expect that the company will be able to meet its liabilities (including contingent and prospective liabilities) as they fall due. This is a matter of judgment, taking into account the company's actual ability to perform its obligations over time, not just a snapshot comparison of asset and liability values.

Contingent and prospective liabilities

Section 123(2) explicitly requires the court to take into account contingent and prospective liabilities. "Contingent" liabilities are those dependent on future events (e.g., guarantee liabilities triggered by another party's default); "prospective" liabilities are those certain to fall due but not yet payable (e.g., long-dated loan repayments).

The Eurosail framing means that contingent liabilities should be valued realistically by reference to the probability of triggering events and likely quantum if triggered — mechanical inclusion at maximum face value can produce false balance sheet insolvency. Prospective liabilities should be considered in light of the company's capacity to perform them when they fall due. A liability falling due in 30 years is treated differently from one falling due in 30 days.

When the balance sheet test applies

Following Eurosail, the balance sheet test is most relevant for:

• ›Special purpose vehicles and securitisation entities where the cash flow test may not be applicable (the entity may be making payments as scheduled but holding a substantial book deficit).
• ›Holding companies with limited current trading but substantial long-dated guarantee or contingent obligations.
• ›Companies with large pension scheme deficits where the cash flow test is met but the long-term solvency position is in question.
• ›Companies where contractual events of default are linked to s.123(2) and the question is whether default has been triggered.

For typical trading companies, the cash flow test under s.123(1)(e) is usually the operationally relevant test. Where cash flow insolvency is established, the balance sheet test analysis is often unnecessary — either test being satisfied is sufficient for s.123 to bite.

The shift in director duties: BTI v Sequana

The Supreme Court in BTI 2014 LLC v Sequana SA [2022] UKSC 25 confirmed and clarified the duty of directors to consider creditor interests as the company approaches insolvency. The case is now the leading authority on when the so-called "creditor duty" engages.

Sequana resolves earlier uncertainty about whether the duty was triggered by "imminent" or "probable" insolvency or by something less — the answer is a sliding scale rather than a binary trigger. The practical implication is that directors of a financially distressed company cannot continue making decisions on a shareholder-only basis once the company is insolvent or bordering on insolvency. Decisions must be made with appropriate weight given to creditor interests — and that weight increases as the position deteriorates. Failure to do so can support claims under section 212 IA 1986 (misfeasance) or section 172 CA 2006.

Wrongful trading exposure

Section 214 IA 1986 creates personal director liability where: the company has gone into insolvent liquidation; at some time before the commencement of the winding-up, the director knew or ought to have concluded that there was no reasonable prospect of avoiding insolvent liquidation; and the director did not take every step that a reasonably diligent person should have taken to minimise the potential loss to creditors.

The link to s.123 is direct — the s.123 tests provide the evidential framework for whether the company's position had crossed the threshold at which a reasonable director should have concluded that insolvent liquidation could not be avoided. The wrongful trading test is more demanding than the s.123 tests — it requires not just current insolvency but the absence of reasonable prospect of avoiding eventual insolvent liquidation — but s.123 satisfaction is typically a precondition for the s.214 analysis to engage. This is covered in detail in the dedicated wrongful trading spoke.

Transactional avoidance vulnerability

Sections 238 (transactions at undervalue) and 239 (preferences) IA 1986 create the framework for IP challenge to transactions entered into in the period before insolvency. The relevant test for whether transactions are vulnerable is whether the company was unable to pay its debts within s.123 at the time of the transaction (or became unable to pay in consequence of it), with relevant lookback periods (typically 6 months for unconnected creditors, 2 years for connected persons in the case of preferences; 2 years for transactions at undervalue).

Section 123 satisfaction at the point of the relevant transaction therefore opens the transaction to retrospective challenge. Directors and connected parties making payments or granting securities during the run-up to insolvency face material clawback risk.

Procedural triggers

Section 122(1)(f) IA 1986 allows the court to wind up a company that is unable to pay its debts within s.123. This is the principal route for creditor winding-up petitions. The s.123 satisfaction is the gateway. Section 123 satisfaction also triggers contractual events of default in many commercial contracts (loan facilities, leases, supply agreements). Counterparties may accelerate, terminate, or call security on the basis of s.123 satisfaction — producing further pressure on the distressed company.

Licensed insolvency practitioners conducting pre-procedure assessments or post-procedure investigation typically work through the following framework:

• ›Cash flow test. Review of management accounts, aged creditor reports, bank statements, HMRC correspondence, and creditor pressure indicators across the relevant period. The IP looks for the pattern of inability to meet obligations as they fell due.
• ›Balance sheet test. Review of audited accounts, management accounts, contingent liability schedules (including pension deficits, guarantee obligations, dilapidations), and the realistic prospects for the company. The IP applies the Eurosail "point of no return" framing.
• ›Date of satisfaction. Identification of the earliest date at which the tests can be reliably said to have been satisfied. This date is typically central to subsequent analysis of director conduct, transactional avoidance, and creditor priorities.
• ›Knowledge attribution. Assessment of what the directors knew or ought to have known about the position at the relevant date, supported by board minutes, internal correspondence, and contemporaneous records.

In contested cases (wrongful trading proceedings, set-aside applications), the IP's analysis is typically supported by expert reports from forensic accountants and tested in cross-examination. The technical framework is rigorous — mechanical assertions that "the company was clearly insolvent" are routinely challenged and require evidential grounding.

If you believe your company may satisfy (or be approaching satisfaction of) the section 123 tests, immediate priorities:

• ›Take professional advice. A licensed insolvency practitioner can review the position objectively, test the relevant indicators, and identify the realistic options. Early engagement materially expands the option set.
• ›Document decision-making. Board minutes recording the directors' consideration of the position, the advice taken, the options considered, and the rationale for decisions made provide the evidential foundation for later defence of director-conduct claims. Contemporaneous documentation is materially better than retrospective reconstruction.
• ›Consider whether continued trading is appropriate. The wrongful trading test asks whether the directors took every reasonable step to minimise creditor loss. Continued trading without realistic recovery prospects, while creditors continue to be incurred, is the classic wrongful trading scenario. The right answer may be to cease trading and enter formal procedure — even where directors prefer to continue.
• ›Engage with HMRC and other principal creditors. Active engagement with creditors during the distressed period — even where full payment cannot be made — is itself evidence of director attentiveness to creditor interests and supports defence of any later director-conduct claims.
• ›Avoid preferential treatment of connected creditors or DLA settlements. Payments to connected creditors or repayments of director loan accounts during the period of insolvency are particularly vulnerable to challenge. Pari passu treatment of unsecured creditors during the run-up to procedure is materially protective.

The right procedural response depends on the underlying facts. Time to Pay arrangements may be appropriate where the company is illiquid but fundamentally solvent and has realistic recovery prospects. Administration may be appropriate where rescue or value preservation is feasible. Creditors' Voluntary Liquidation may be the right answer where the company cannot continue trading and an orderly wind-down is needed. Company Voluntary Arrangements may produce restructured outcomes where the underlying business has viability. The choice depends on the specific facts.

If you are concerned that your company may satisfy the section 123 tests, the first step is a conversation with a licensed practitioner. The conversation will assess the position objectively, identify the cash flow and balance sheet indicators, evaluate the realistic options across procedure types and informal restructuring, and outline the priority steps. Decisions are typically time-sensitive but the right framework can be established within hours of engagement. There is no charge for the initial consultation and no obligation arising from it. Confidentiality is absolute.

At IQ Insolvency, every engagement is led by a licensed insolvency practitioner from the first conversation. The IP works with specialist counsel and forensic accountants where the matter requires it, and engages directly with HMRC and other principal stakeholders throughout. No call centres. No handoffs. One licensed practitioner, start to finish.

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