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Yes, stock buyback is legal in Australia, and the statutory framework governing it is found in Part 2J.1 of the Corporations Act 2001 (Cth). Companies may buy back their own shares provided they follow specific approval, solvency, lodgement and disclosure procedures administered by ASIC. The question for directors, in-house counsel and advisers in 2026 is not whether a buy-back is permitted but how to structure it, particularly now that the ATO has refreshed its guidance on share buy-back tax treatment. This guide maps every compliance step, from board resolution through ASIC lodgement to ATO reporting, so practitioners can execute a buy-back with confidence.
Last reviewed: 23 June 2026.
Before embarking on any buy-back, the company must identify the correct type. The Corporations Act and ASIC recognise several distinct categories, each carrying different approval thresholds, timing rules and tax consequences. Choosing the wrong category, or mixing procedures, can invalidate the transaction and expose directors to personal liability.
An on-market buy-back is available only to companies listed on the ASX. The company purchases its own shares through the ordinary course of trading on the exchange, in the same way any other buyer would. ASX Listing Rules impose additional requirements, including the obligation to announce the buy-back before it begins and to report daily buy-back activity to the market. On-market buy-backs are capped by the 10/12 limit (explained below) unless shareholders approve a larger programme. They are popular for capital management because they involve no individual negotiation with sellers and offer pricing transparency.
An off-market share buy-back occurs outside a securities exchange. The company makes an offer directly to shareholders, either to all shareholders equally or to selected shareholders. Off-market buy-backs are common among private companies (which have no exchange listing) and are also used by listed companies when they wish to offer a fixed price or a price determined by tender. The tax treatment of off-market buy-backs is a critical planning consideration, especially after the 2023 legislative changes to franking rules and the ATO’s updated guidance.
An equal access buy-back offers every shareholder in a class the same opportunity to participate on the same terms. A selective share buy-back targets specific shareholders and requires a special resolution (75 per cent majority) with the selling shareholder excluded from voting. This distinction drives most of the governance complexity in buy-back transactions.
Part 2J.1 of the Corporations Act 2001 provides the statutory foundation for share buy-backs. A company may buy back its own shares if it follows the procedures set out in the Act, the buy-back does not materially prejudice the company’s ability to pay its creditors, and the company complies with any additional requirements in its constitution. ASIC oversees compliance and maintains detailed guidance on the procedural steps companies must follow.
Not every buy-back requires shareholder approval. The approval pathway depends on the type and scale of the buy-back:
The 10/12 limit is the maximum number of shares a company can buy back in a 12-month period without obtaining shareholder approval. It is calculated as 10 per cent of the smallest total number of shares on issue at any point during the preceding 12 months. If the company has issued new shares or cancelled shares during that period, the denominator adjusts downward to the lowest point. Any buy-back that would cause the total shares bought back in the rolling 12-month window to exceed this figure triggers the need for an ordinary resolution. The 10/12 limit applies to on-market and equal access buy-backs, it does not replace the special-resolution requirement for selective buy-backs.
| Buy-back type | Approval threshold | Who may vote? |
|---|---|---|
| On-market or equal access (within 10/12 limit) | Board resolution only | N/A, no shareholder vote |
| On-market or equal access (exceeds 10/12 limit) | Ordinary resolution (50%+1) | All shareholders in the class |
| Selective buy-back | Special resolution (75%+) | All shareholders except the selling shareholder and associates |
| Employee share scheme buy-back | Ordinary resolution | All shareholders (scheme participant excluded if selective) |
Practitioners advising on whether a stock buyback is legal in Australia need a transaction-ready checklist. The steps below follow the sequence mandated by the Corporations Act and ASIC’s published guidance.
The process starts with a board resolution. Directors must resolve to undertake the buy-back, confirm the type (selective, equal access or on-market), set the terms (price or price range, number of shares, timetable) and make a solvency declaration. Sample board resolution language:
“RESOLVED that the Company buy back up to [number] fully paid ordinary shares at a price of $[X] per share on an [equal access / selective] basis, subject to compliance with Part 2J.1 of the Corporations Act 2001 (Cth) and the Company’s constitution. The directors have formed the opinion, on reasonable grounds, that the Company will be able to pay its debts as and when they become due and payable and that the buy-back will not materially prejudice the Company’s ability to pay its creditors.”
Each director should sign a solvency declaration. This is not a mere formality, directors face personal liability under section 588G if the company trades while insolvent, and a buy-back that depletes cash reserves can trigger that liability.
For buy-backs requiring shareholder approval, the company must issue a notice of meeting containing:
Notice periods follow standard meeting notice requirements under the Act, at least 28 days for public companies and 21 days for proprietary companies (unless the constitution specifies otherwise).
ASIC must be notified at key stages. The company lodges notifications through the ASIC Regulatory Portal. Critical lodgements include:
Listed companies must simultaneously comply with ASX announcement requirements. Failure to notify ASIC is an offence and may also give shareholders grounds to challenge the buy-back’s validity.
| Step | Timing | Responsible party |
|---|---|---|
| Board resolution and solvency declaration | Day 0 | Directors / company secretary |
| Lodge ASIC notice of intention | Day 1–14 (before buy-back begins) | Company secretary |
| Issue shareholder notice and meeting papers (if required) | Day 1–7 | Company secretary / legal counsel |
| Hold general meeting and pass resolution (if required) | Day 28–35 (public) / Day 21–28 (proprietary) | Chair / company secretary |
| Execute buy-back (payment and transfer) | Settlement date per buy-back terms | Directors / treasury |
| Cancel shares and update register | Immediately on settlement | Company secretary |
| Lodge ASIC notice of completion | Within prescribed period post-settlement | Company secretary |
| Complete ATO reporting (dividend/CGT components) | By lodgement date for relevant tax return | CFO / tax adviser |
The solvency test is arguably the most important safeguard in the buy-back process. Under the Corporations Act, a company must not buy back shares if there are reasonable grounds to suspect the company is or would become insolvent as a result of the buy-back. Directors bear personal liability for authorising a buy-back while the company is insolvent.
To discharge their obligations, directors should assemble and review evidence including:
The solvency declaration should be made as close as practicable to the date of payment. A declaration made weeks before settlement may not protect directors if the company’s financial position deteriorates in the interim.
Industry observers expect regulators to scrutinise buy-back solvency declarations more closely where the company is in financial difficulty or the buy-back consideration is large relative to net assets. In those circumstances, obtaining a formal solvency opinion from an independent accountant or auditor, and recording it in the board minutes, provides a defensible evidentiary trail. For selective buy-backs involving related parties, an independent expert report on the fairness of the buy-back price is strongly recommended, even where not strictly required by the Act.
The tax consequences of a share buy-back depend on the type of buy-back, the shareholder’s circumstances, and whether the buy-back is on-market or off-market. The ATO’s guidance on share buy-backs provides the authoritative framework. Following the 2023 legislative changes that aligned the tax treatment of off-market buy-backs by listed companies with on-market buy-backs (removing the ability to stream franking credits at a premium), the share buy-back ATO landscape has shifted significantly.
Under the ATO’s framework, the buy-back consideration is split into two components:
The company must determine the dividend and capital components of the buy-back price and advise participating shareholders of the split. For the dividend component, the company may frank the dividend and must issue a distribution statement showing any franking credits attached. For the capital component, the shareholder calculates a capital gain or loss by comparing the capital component against their cost base for the shares. The company must also withhold tax on any unfranked portion of the dividend paid to non-resident shareholders, in accordance with ATO withholding obligations.
Practitioners should note that the 2023 changes apply to off-market buy-backs by listed public companies. The likely practical effect for 2026 transactions is that listed companies can no longer structure off-market buy-backs to deliver a larger franked dividend and smaller capital component, the consideration is now split in the same way as an on-market buy-back.
| Factor | On-market buy-back | Off-market buy-back (listed company, post-2023) |
|---|---|---|
| Buy-back price per share | $10.00 (market price) | $10.00 (tender / fixed price) |
| Share capital account per share | $4.00 | $4.00 |
| Dividend component | $6.00 | $6.00 |
| Capital component (CGT event) | $4.00 | $4.00 |
| Shareholder cost base per share | $3.00 | $3.00 |
| Capital gain | $1.00 ($4.00 − $3.00) | $1.00 ($4.00 − $3.00) |
| Franking credits available | At company’s discretion | At company’s discretion (same basis post-2023) |
For private company share buy-backs in Australia, the pre-2023 rules continue to apply. The ATO may allow a different split between dividend and capital components for off-market buy-backs by private companies, potentially delivering more favourable franking outcomes. Practitioners advising private companies should obtain specific ATO guidance or a private ruling where the buy-back consideration departs significantly from market value.
A selective share buy-back targeting a specific shareholder raises governance and fairness concerns that go beyond the statutory approval threshold. Directors must consider:
For selective buy-backs of unlisted shares, an independent expert report on the fair market value of the shares provides critical protection for directors and reassurance for remaining shareholders. The expert should be qualified (typically a registered valuer or chartered accountant with valuation credentials) and should disclose any conflicts. While the Act does not mandate an independent expert report for every selective buy-back, early indications suggest that courts and regulators view the absence of one as a risk factor when assessing directors’ conduct.
The share buy-back procedure for a private company follows the same statutory framework as for public companies, but with some practical differences:
A common pitfall for private companies is failing to update the share register and lodge ASIC notifications promptly after the buy-back. Even where the buy-back itself is procedurally valid, delayed ASIC filings create compliance exposure.
Consider a hypothetical scenario: Company X (a proprietary company with 1,000,000 shares on issue) wishes to buy back 80,000 shares from a departing founder at $5.00 per share, a selective buy-back totalling $400,000.
| Entity type | ASIC lodgement required? | Special notes |
|---|---|---|
| ASX-listed public company | Yes, notice of intention and notice of completion | Must also comply with ASX Listing Rules; continuous disclosure obligations; daily on-market reporting |
| Unlisted public company | Yes, same ASIC lodgements as listed company | No ASX rules, but Chapter 2E related-party provisions may apply |
| Proprietary (private) company | Yes, same ASIC lodgements | Shorter meeting notice periods; off-market tax split may differ; no treasury shares permitted |
| Small proprietary company | Yes, same ASIC lodgements | May have reduced financial reporting obligations but buy-back procedures unchanged |
Stock buyback is legal in Australia under Part 2J.1 of the Corporations Act 2001, subject to strict compliance with approval, solvency and lodgement requirements. The practical answer in 2026 is that companies can and do execute buy-backs routinely, but the margin for procedural error is narrow, and the tax consequences require careful structuring.
Every practitioner advising on a buy-back should confirm:
For guidance on structuring a share buy-back or any corporate finance matter in Australia, find a corporate lawyer in Australia through the Global Law Experts directory.
This article provides general information only and does not constitute legal or tax advice. Seek independent professional advice before acting on any matter discussed.
This article was produced by Global Law Experts. For specialist advice on this topic, contact Fu Zhu at EXC LAW, a member of the Global Law Experts network.
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