In corporate governance, few assumptions are more enduring, or more dangerous, than the belief that a director’s legal exposure begins on the day they are formally appointed and ends when they step down. This may seem intuitive, even fair. But the law surrounding directors’ duties doesn’t work that way. It has its own rhythms, grounded in statute, shaped by case law, and influenced heavily by what the courts describe as the substance, not form of a person’s involvement.
Directors have always occupied a space of personal responsibility. But in an era where regulatory scrutiny is increasing and corporate collapse can lead to prolonged investigation, the question of when duties apply, and to whom, has become more than academic. For someone joining a board after a period of mismanagement, or departing in anticipation of trouble, timing alone offers little protection.
The Companies Act
The Companies Act 2006 sets out seven general duties owed by directors, running from section 171 through to 177. These include the familiar obligations: to act within powers, to promote the success of the company, to exercise independent judgment, and to apply reasonable care, skill and diligence. There’s also the duty to avoid conflicts of interest, to refuse unauthorised third-party benefits, and to declare interests in proposed transactions.
These are not abstract concepts. Section 174, for instance – the duty of care – uses a hybrid test: what would a reasonably diligent person do in the role, and what should this director have done, given their background and experience? That second part matters. Directors with financial or legal training, or restructuring expertise, will often be held to a higher standard. Courts won’t accept silence or passivity where a well-informed board member had every reason to speak up.
Most of these duties apply only while a person is formally a director. But not all. The duty to avoid conflicts (s.175) and the duty not to exploit company information or opportunities (s.176) are designed to persist beyond resignation – so that a director can’t simply step down and start making personal use of what they know.
Joining the board mid-crisis
Legally speaking, someone who joins the board after misconduct has already happened won’t be held responsible for it – not directly, anyway. You can’t breach duties you don’t yet owe. But the moment you step into the role, your responsibilities start running, and they don’t wait for you to catch up.
Directors have a duty to inform themselves. That means reading the accounts, asking questions, reviewing the minutes, and spotting any red flags. If it turns out there was serious misconduct before you joined, and you did nothing about it once you discovered it, the law won’t view you as a passive bystander. It will view you as someone who failed to act.
In truth, that’s where most of the risk lies. Courts don’t punish directors for not having a crystal ball. But they do expect vigilance, especially when stepping into a role that smells of trouble. If financial statements don’t add up, or there’s evidence of fraud or misfeasance that’s still ongoing, you’re expected to investigate. Turning a blind eye isn’t just negligent – it may put you in breach of multiple duties, including sections 172 and 174.
The situation gets even more fraught when someone was involved behind the scenes before formally joining the board. If you’ve been attending meetings, influencing decisions, or speaking on behalf of the company in a managerial context, the court might treat you as a ‘de facto director’. That’s someone who performs the functions of a director, regardless of whether they’ve been formally appointed. Similarly, if others on the board are used to taking direction from you, and rarely act without your input, you might be seen as a ‘shadow director’.
Both labels bring legal exposure. The court’s view is that you shouldn’t be able to avoid responsibility just because Companies House hasn’t caught up with reality.
Walking away – but not walking free
Now to the other side of the question: what happens when a director resigns before things fall apart?
This is where the belief that “resignation equals protection” does the most harm. A person may step down long before insolvency or investigation begins, but they’re still on the hook for what they did, or failed to do, during their time in office. The law doesn’t view resignation as a clean slate. It’s a timing event, not a shield.
Under the Insolvency Act 1986, directors can be found liable for wrongful trading (s.214) or fraudulent trading (s.213), both of which focus on the decisions made in the run-up to insolvency. Section 214 in particular can lead to personal liability where a director knew, or ought to have known, that there was no reasonable prospect of avoiding liquidation, but carried on regardless. And the courts won’t care whether the person had stepped down a week, a month or even a year before the liquidator starts digging.
Even outside insolvency, directors may face disqualification proceedings, particularly under the Company Directors Disqualification Act 1986, where misconduct or unfitness is uncovered after the fact. Investigations by the Insolvency Service, the FCA, or Companies House enforcement teams don’t expire when a resignation takes effect.
And remember – those continuing post-resignation duties under sections 175 and 176 can cause trouble too. A director who leaves and immediately joins a competitor, or shares privileged company information with a third party, could find themselves facing litigation even if their formal role ended months earlier.
So what does this mean in practice?
It means that directors, especially those joining high-risk or distressed companies, need to do more than turn up and read the agenda. They need to think like a lawyer would: what don’t I know yet? What’s not being said in the room? What’s missing from the pack?
Due diligence matters. Asking awkward questions matters. Seeking independent advice when the company is under financial pressure isn’t just prudent, it may be a legal necessity. Directors stepping into crisis-hit boards should also be checking whether the company has Directors and Officers (D&O) liability insurance in place, and whether it’s still functioning as it should.
D&O insurance is the safety net that protects directors personally if they’re accused of breaching their duties. It covers legal defence costs, regulatory investigations, and, in many cases, compensation if a claim is brought against them. But it doesn’t cover everything. It usually excludes criminal conduct, dishonesty, or fraud, and crucially, it may lapse after you resign unless the policy includes extended cover, sometimes called “run-off”. That’s why it matters to know not just whether it exists, but how long it lasts.
And when it comes to resigning, doing so without formal notice, without recording your dissent, and without checking whether your insurance protection continues once you’ve stepped away, is a mistake too many make. There’s nothing strategic about disappearing quietly, only to be called back into the room two years later – by a liquidator, a regulator, or a lawyer.
Because here’s the uncomfortable truth – when the dust settles, the question won’t be whether you were in the building at the start or the end. It will be whether, when it counted, you acted as a director should.
