If you are a director or officer of an Australian company, you carry a personal legal duty to act in good faith in the best interests of the company and for a proper purpose. It is not a slogan. It is a binding obligation under s 181(1) of the Corporations Act 2001 (Cth), and it sits at the centre of a wider set of duties that regulators and courts take seriously. Because the duty attaches to you personally, a breach can mean fines, compensation orders, disqualification from managing companies, and in cases involving recklessness or dishonesty, criminal prosecution.
This guide explains who owes the duty, what "best interests of the corporation" actually means in practice, when the duty shifts towards creditors, the related duties of care, loyalty and confidentiality, the consequences of getting it wrong, and the practical steps you can take now to stay protected.
Who owes the duty
The best interest duty applies to every company registered in Australia. There is no size threshold, no turnover test and no minimum number of directors. From the day a company is incorporated, each of its directors and officers carries the duty, whether the company is a one-person proprietary company, a family business or a listed group.
Under s 181(1), the duty falls on directors and other officers. The Act defines an officer broadly in s 9AD to include:
- Directors: anyone validly appointed as a director, whether executive or non-executive.
- Secretaries: the company secretary of a public company.
- Senior managers: anyone who makes, or participates in making, decisions that affect the whole or a substantial part of the business, or who has the capacity to significantly affect the company's financial standing.
- Shadow and de facto directors: people in accordance with whose instructions or wishes the board is accustomed to act, and people who act as directors without formal appointment.
- External administrators: receivers, administrators, liquidators and restructuring practitioners while they hold office.
Two further points are worth noting. First, the duties in s 182 (use of position) and s 183 (use of information) also apply to employees, not just directors and officers. Second, the duty is attached to the role, not to shareholding. If you are a founder who owns all the shares, you still owe the duty to the company as a separate legal person. And for s 183, the duty continues after you resign or sell up, because information obtained through your position stays protected.
The core duty: good faith, best interests and proper purpose
Section 181(1) requires a director or other officer to exercise their powers and discharge their duties in two ways: in good faith in the best interests of the corporation, and for a proper purpose. Both limbs must be satisfied, and each has its own content:
- Good faith in the best interests of the corporation: making decisions that you honestly believe will benefit the company as a whole, rather than yourself, a particular shareholder, or a related business. Courts interpret "the best interests of the corporation" as the interests of the company as a whole, which in a solvent company usually means the shareholders as a group, viewed over the long term. It does not mean maximising profit in the next quarter. Decisions that support employee retention, product quality, customer trust, safety or regulatory compliance can all be in the company's best interests, even where they reduce short-term profit, provided the board can explain the commercial rationale.
- For a proper purpose: using each power for the purpose for which it was given, not for an ulterior motive. The classic example is issuing shares. A board can issue shares to raise capital the company genuinely needs. If the same power is used mainly to dilute a shareholder or entrench control, the purpose is improper and the decision can breach the duty even if the director honestly thought it helped the company. Before exercising any significant power, ask what the power is for, and record the answer.
When the duty shifts: insolvency and creditors' interests
The identity of the people whose interests count changes as a company's financial position deteriorates. In Walker v Wimborne [1976] HCA 7, the High Court held that directors, in discharging their duty to the company, must take account of the interests of both shareholders and creditors. Where a company is insolvent or nearing insolvency, the interests of creditors become the dominant consideration. The High Court confirmed this position in Spies v The Queen [2000] HCA 43: directors do not owe a direct duty to individual creditors, but once insolvency is on the horizon the company's interests are effectively the interests of its creditors.
This matters in practice because decisions that strip value out of a struggling company, or that favour insiders or related entities at the expense of creditors, can be challenged by a liquidator or by ASIC. Once you suspect the company may be insolvent or may become insolvent, take these steps:
- Keep accurate and timely financial information: so the board actually knows the company's position.
- Do not let the company incur debts it cannot repay: section 588G separately imposes a duty on directors to prevent insolvent trading, and the compensation exposure can be significant.
- Consider safe harbour: under s 588GA of the Corporations Act 2001 (Cth), directors who, after suspecting insolvency, develop and pursue a course of action reasonably likely to lead to a better outcome for the company can be protected from personal liability for insolvent trading during that period.
- Take advice early: restructuring, administration and safe harbour options are time-sensitive, and advice is cheaper before a liquidator is appointed than after.
The duties that sit alongside s 181
The best interest duty does not operate in isolation. The same chapter of the Act imposes related obligations that boards should treat as one system.
Care and diligence, and the business judgment rule
Section 180(1) requires directors and officers to exercise their powers and discharge their duties with the degree of care and diligence that a reasonable person would exercise in the company's circumstances and in the same office. This is a standard of conduct, not of outcome: a director who makes a considered decision that later turns out badly has not necessarily breached it.
Section 180(2) provides the business judgment rule, which is the main practical protection for good decision-making. A director who makes a business judgment is taken to have met the care and diligence standard if they:
- made the judgment in good faith for a proper purpose;
- had no material personal interest in the subject matter;
- informed themselves about the subject matter to the extent they reasonably believed appropriate; and
- rationally believed the judgment was in the company's best interests.
If those elements are met, the court will not second-guess the commercial merits of the decision. That is why process and records matter: the business judgment rule is much easier to rely on when the board papers and minutes show what information was considered and why one option was chosen.
Using your position and information properly
Section 182 prohibits directors, officers and employees from improperly using their position to gain an advantage for themselves or someone else, or to cause detriment to the company. Section 183 does the same for information obtained through their role. These provisions catch the obvious cases, like diverting a business opportunity or leaking confidential information, and the less obvious ones, like a director using company information to advantage a separate business they control.
Conflicts of interest are managed under the same logic. A conflict does not automatically bar a director from a decision, but it must be disclosed and handled properly. In practice that means disclosing any material personal interest before the decision, considering whether the conflicted director should abstain, and ensuring any related-party dealing is on arm's-length terms and properly documented. For public companies, Chapter 2E of the Act goes further: s 208 requires member approval before the company gives a financial benefit to a related party, subject to limited exceptions. Proprietary companies are not bound by Chapter 2E, but a director who steers a favourable deal to their own interests can still breach s 182 and s 181.
Group companies and the subsidiary question
If your company is part of a group, remember that each company is a separate legal entity. In Walker v Wimborne, the High Court emphasised that directors of one company must consult that company's interests, not the group's. As a director of a subsidiary, your starting point is the subsidiary's best interests, not the parent's.
There is one statutory exception. Under s 187, a director of a wholly-owned subsidiary is taken to act in good faith in the subsidiary's best interests if the subsidiary's constitution expressly authorises acting in the interests of the holding company, the director acts in good faith in the holding company's interests, and the subsidiary is not insolvent and does not become insolvent because of the act. Outside that exception, any intra-group transaction such as a guarantee, a loan, an IP licence or an asset transfer needs a clear commercial benefit to the subsidiary, documented in a proper inter-company agreement, with the subsidiary board's independent reasoning recorded in the minutes.
What happens if the duty is breached
Section 181 is a civil penalty provision, which means ASIC can take the matter to court and seek a range of orders. The consequences include:
- Pecuniary penalties: under s 1317G, an individual faces a maximum penalty of the greater of 5,000 penalty units or three times the benefit derived from the contravention. Penalty units are currently $330 each under s 4AA of the Crimes Act 1914 (Cth), so the cap for an individual is about $1.65 million per contravention. The maximum for a body corporate is far higher, at 50,000 penalty units or 10% of annual turnover.
- Compensation orders: under s 1317H, the court can order the director to compensate the company for loss or damage resulting from the contravention.
- Disqualification: under s 206C, the court can disqualify a person from managing corporations for a period it considers appropriate. For the most serious cases, that can mean many years out of business.
- Criminal liability: under s 184, a director or officer who fails to act in good faith or for a proper purpose while reckless or dishonest commits an offence punishable by up to 15 years imprisonment.
The enforcement picture is not theoretical. In ASIC v Adler [2002] NSWSC 483, one of the cases arising from the collapse of HIH, the court found that a director had breached ss 180 to 183 in connection with a $10 million payment by an HIH subsidiary to a company the director controlled. The court made declarations of contravention, ordered compensation of nearly $8 million, imposed pecuniary penalties and disqualified the director from managing corporations for a substantial period.
There is also a genuine safety valve for honest directors. Under s 1317S, a court may relieve a person wholly or partly from liability for contravening a civil penalty provision if the person acted honestly and, having regard to all the circumstances, ought fairly to be excused. Relief of this kind is easier to obtain when the record shows a genuine, informed decision-making process, which is why documentation is not bureaucracy; it is protection.
A practical compliance checklist
Work through these steps as part of your regular governance routine:
- Use a structured decision process: identify the power being exercised, gather the information, weigh the options and risks, disclose conflicts, and make the call.
- Minute the reasoning: record the key facts relied on and why one option was preferred, not just the outcome.
- Maintain a conflicts register: disclose material personal interests at the start of each meeting and record how each conflict was managed.
- Document group transactions: ensure every intra-group dealing has a commercial benefit to the entity giving the value, supported by a signed agreement.
- Keep financials current: accurate, timely financial information is what lets the board know when the duty shifts towards creditors.
- Review governance documents: a constitution that fits the business, clear delegation limits and a standing conflicts policy remove ambiguity before decisions are made.
- Check your D&O insurance: understand what is covered and what is excluded, particularly for wilful breaches and s 182 and s 183 conduct.
When to get a lawyer involved
For a small or mid-sized business, the best time to involve a lawyer is before a decision is made, not after a dispute starts. A commercial lawyer can help with a governance health check, reviewing or drafting the constitution, shareholders' agreement, conflicts policy and delegation limits, and advising on specific transactions such as capital raises, related-party dealings and intra-group support arrangements. If the company is under financial pressure, legal advice on insolvent trading, safe harbour and restructuring options should be sought early. And if ASIC or a liquidator does come knocking, a lawyer can assess the claims, marshal the evidence of process and good faith, and engage with the regulator or the court on your behalf.
The duty most boards quietly miss
Across the cases, the breaches that hurt SME directors most are rarely dramatic dishonesty. They are decisions made without recorded reasoning, conflicts that were never disclosed, group transactions with no documented benefit, and boards that kept trading on instinct while the company slid towards insolvency. The duty shifts the moment financial trouble appears, and directors who do not notice the shift can find their personal assets exposed.
The first step to take this week is small and cheap: adopt a minute-taking standard that captures the why, and start a standing conflicts register. From then on, every significant decision gets a paper trail that supports the business judgment rule, and every conflict has a home. That habit, more than any single document, is what keeps the best interest duty working for you instead of against you.