The 2026 Federal Budget’s CGT reform has created a genuine exit window for Australian business owners – but when you account for sale process timelines, mandatory ACCC notification requirements, and deal readiness preparation, that window is already closing.
Key takeaways:
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- From 1 July 2027, Australia’s 50% CGT discount will be replaced by cost-base indexation with a 30% minimum tax, creating a clear incentive for business owners with near-term exit plans to act before that date.
- A typical sale process takes 7 to 12 months – and the new ACCC mandatory notification regime adds further mandatory clearance time, meaning owners who want to complete before July 2027 may need to start their process now.
- Rushing to beat a deadline without adequate preparation is counterproductive; vendors who enter a process underprepared cede negotiating leverage precisely when they can least afford to.
- Deal structure offers an alternative lever – earn-outs, equity rollovers, and staged consideration can be used to manage the CGT transition, and may appeal to sellers who cannot achieve a clean completion before the deadline.
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A Tax Reform That Changes the Calculus for Private Business Owners
The 2026–27 Federal Budget introduced the most significant changes to Australia’s capital gains tax framework in decades. From 1 July 2027, the 50% CGT discount that has long applied to assets held for more than 12 months will be abolished and replaced with cost-base indexation, subject to a 30% minimum tax on net capital gains.[1]
For publicly listed companies and assets backed predominantly by institutional investors, the practical impact is limited – super funds and major institutions are largely unaffected by the change, and they set the marginal price for most large-cap transactions. But for privately held businesses, particularly founder-led and family-owned companies, the implications are direct and material.
The transitional arrangements mean that gains accruing up to 1 July 2027 will still attract the old 50% discount regime, provided owners can establish the market value of their business at that date. For anyone contemplating a sale, this creates a clear financial incentive to complete before the transition – or at minimum, to establish a credible valuation at the transition date to quarantine earlier gains under the old rules.
There is also a structural irony in the reform that business owners should understand. An independent valuation conducted for CGT purposes tends to reflect a conservative view of value – something closer to a financial buyer’s assessment than the premium a strategic acquirer might pay. If the strategic value of your business is two turns of EBITDA above what a valuer would assess, there is a meaningful gap in the tax treatment of those gains depending on whether the sale completes before or after the transition date.
The Timeline Is Tighter Than Most People Realise
A well-run private sale process – from initial preparation through to signing – typically takes between seven and twelve months. That timeline assumes the business is reasonably well prepared going in. It encompasses preparation and vendor due diligence, identification and engagement of potential buyers, management presentations, indicative offers, exclusivity negotiations, final due diligence, and legal documentation.[2]
What that estimate does not account for is the new ACCC mandatory notification regime, which came into force on 1 January 2026. Under the new rules, transactions that meet prescribed thresholds – based on deal value, acquirer turnover, and target turnover – must be formally notified to the ACCC before completion can proceed.[3] The ACCC is required to make a phase 1 decision within 15 to 30 business days, with the possibility of a phase 2 review for transactions that raise more complex competition issues.[4]
For transactions in sectors such as healthcare, technology, professional services, or any market where the acquirer already holds a meaningful position, phase 2 review is a genuine risk – and phase 2 has no fixed outer time limit. Business owners and their advisors need to factor ACCC clearance time into deal timetables from the outset, not as an afterthought once heads of agreement have been signed.
Stack a 10-month sale process on top of a 30 business day ACCC review – plus the preparation time required before a process can launch – and the practical deadline to begin is not late 2026. For many businesses, it is now.
The Risk of the Rush: Why Preparation Cannot Be Shortcut
There is a real danger that the CGT deadline creates perverse incentives for business owners – pushing them into sale processes before they are genuinely ready, in the hope of capturing the tax benefit. That trade-off rarely works in practice.[5]
Buyers conduct rigorous due diligence precisely because they are deploying significant capital. A business that enters a process with incomplete financial records, unresolved legal issues, key-person dependencies that have not been addressed, or a management team that cannot credibly articulate a growth story will not attract the best offers – and it may not attract binding offers at all. Vendors who enter under time pressure are also negotiating from a weaker position. A sophisticated buyer will identify urgency on the sell side and price it accordingly.
The businesses that achieve the strongest outcomes in sale processes are those that have invested in preparation well ahead of launch. That means audited or reviewed financial statements, clean corporate records, a documented governance framework, identified succession plans for key roles, and a clear narrative about the business’s competitive position and growth trajectory. None of that can be assembled in a matter of weeks.
The honest advice for any business owner who is serious about exiting before July 2027 is to begin preparation immediately – not to begin a sale process, but to begin the readiness work that makes a sale process viable. An experienced advisor can assess where the gaps are and prioritise the remediation effort accordingly.

Deal Structure as an Alternative Lever
Not every business will be positioned to complete a clean sale before 1 July 2027, and for some owners, the more constructive question is how deal structure can be used to manage the CGT transition rather than race against it.
Earn-out arrangements, where a portion of the purchase price is deferred and contingent on future performance, are one option. If structured appropriately, they can allow an owner to lock in headline value through a pre-July 2027 agreement while managing the timing of actual receipts. Equity rollovers – where the seller retains a stake in the combined business or a new structure – are another mechanism that can defer crystallisation of the gain. These arrangements are more common in private equity transactions, where sponsors are often comfortable maintaining alignment with founders through a partial exit.
Structured debt instruments and vendor finance arrangements can also be used to reshape the economic profile of a transaction, though they carry their own complexity and risk. In each case, the appropriateness of a particular structure depends on the specific circumstances of the business, the nature of the buyer, and the tax position of the individual vendor.[6]
The key point is that the July 2027 deadline need not be treated as a binary outcome – sell everything or miss the window. Owners who engage with the question early, and who work with advisors across both the transaction and capital structuring dimensions, have considerably more flexibility than those who approach it as a pure timing problem.
What Boards and Business Owners Should Be Doing Today
The businesses that will be best positioned – whether they pursue a sale before July 2027 or not – are those that treat the current environment as a prompt to get fundamentals right rather than a deadline to respond to reactively.
A starting point is an honest assessment of where the business stands on the dimensions that buyers scrutinise most closely: financial quality and consistency, revenue concentration and customer relationships, management depth beyond the founder, legal and regulatory standing, and competitive positioning. The purpose of that assessment is not to generate a sale document but to identify what would need to be addressed before a credible process could be launched and what the realistic timeline looks like.
Alongside that internal assessment, it is worth understanding the full regulatory environment that a transaction would navigate – including whether the proposed deal structure and the likely field of acquirers would trigger ACCC notification requirements. Early engagement with experienced advisors on both the competition and transaction dimensions can save significant time and avoid costly surprises late in a process.
Finally, owners who are genuinely uncertain about whether to pursue a sale before July 2027 should seek independent advice on the CGT transition mechanics as applied to their specific situation. The transitional relief provisions are meaningful, but they require establishing a defensible valuation at 1 July 2027 – and doing that well takes time and professional rigour.
Conclusion
The July 2027 CGT transition is a genuine inflection point for privately held Australian businesses – but its significance lies not just in the tax change itself, but in the compressed decision timeline it creates when overlaid with the realities of running a sale process in today’s regulatory environment. The owners who will benefit most are not those who move fastest, but those who start thinking clearly about their options earliest. For businesses with a realistic exit horizon in the next two to three years, that thinking should have started already. If it has not, the time to begin is now – not because the window will close overnight, but because the preparation required to transact well cannot be rushed.
Footnotes:
[1] Australian Government, Treasury Laws Amendment (Better Targeted Superannuation and Other Measures) Act – Budget 2026–27 Tax Reform, May 2026.
[2] William Buck, “Dealmaking Insights Report 2026: M&A Activity,” 2026.
[3] ACCC, “New merger control regime off to positive start,” Media Release, April 2026.
[4] Norton Rose Fulbright, “Australia’s new mandatory merger control regime,” 2026.
[5] HLB Mann Judd, “Australia Mid-Market M&A Update Q3 FY2026,” 2026.
[6] CPA Australia, “Federal Budget 2026–27: Analysis of Tax Changes and Business Impacts,” May 2026.



