Australia's 50% CGT Discount Is Under Review: What Business Owners Need to Know Before the May Budget

For over two decades, the 50% CGT discount has been one of the most valuable tax concessions available to Australian business owners. Hold an asset for more than 12 months, sell it, and only half the capital gain is included in your assessable income.

On a $2 million business sale generating a $1.5 million capital gain, that discount is worth over $300,000 in tax savings at a 45% marginal rate.

Now, for the first time in a generation, that discount is under active review ahead of the May 2026 federal budget.

What's actually being reviewed

The government has flagged the CGT discount as part of a broader examination of capital income taxation. The original policy rationale — adjusting for inflation in long-held assets — has been questioned in an era of persistent asset price appreciation.

No changes have been announced. But where there is a review, there is the possibility of reform — and reforms of this kind rarely come with long implementation windows. When they move, they move at budget.

The May 2026 budget is 4–6 weeks away.

The numbers, made concrete

Here is what the 50% discount means in dollar terms for a business sale:

A partial reduction — say, cutting the discount from 50% to 25% — would add roughly $169,000 to the tax bill on that same gain. For a $3 million gain, that figure doubles.

These are not hypothetical losses. They are real after-tax proceeds that flow from the timing of a decision that most business owners treat as flexible.

How this interacts with small business CGT concessions

Many business owners assume the small business CGT concessions make the general discount irrelevant. This is not always true.

The small business concessions — including the 15-year exemption, the 50% active asset reduction, and the retirement exemption — are powerful but conditional. They require passing the basic conditions (turnover under $2 million or net assets under $6 million), the active asset test, and in some cases the connected entities test.

Businesses that fail any one of these tests fall back to the general discount. And even for those that qualify, the concessions and the general discount often interact — the ordering of which applies first matters.

If the general discount changes, the fallback position for businesses that don't fully qualify for concessions becomes materially worse.

Three scenarios for May 2026

There is no single outcome here. The realistic range:

• No change. The review concludes the discount should remain. Business owners who chose timing on this basis gave up nothing — they still sold under the rules they knew.
• Partial reduction. The discount is cut from 50% to 25–33%. This is the most commonly discussed option. After-tax proceeds fall by tens to hundreds of thousands of dollars depending on the gain.
• Full removal. Less likely but not impossible. This would represent the most significant change to CGT settings in Australia since the Ralph Review in 1999.

The base case among tax professionals is that a partial reduction is more likely than full removal. But a partial reduction is still a material hit for owners of mid-market businesses where capital gains are significant.

What this means for business owners planning a sale

If you are genuinely planning to sell in the next 12–24 months, there are a few practical questions worth working through now:

1. Do you know your current after-tax number?

Most business owners know their revenue and a rough sense of profit. Fewer have worked out the full tax picture — what the capital gain is likely to be, which concessions apply, and what the net proceeds look like after tax. That number matters more than the headline sale price.

2. What does deal timing actually require?

Completing a business sale before the May budget requires a signed contract. Most business sales take 3–9 months from first conversations to settlement. For a May 13 budget, an April signing date would be required — which means serious conversations needed to start in December 2025 at the latest for a clean process.

That window has closed for this budget cycle. But understanding what it takes to transact in a specific window is useful for planning the next one. If there are further budget reviews of CGT settings, being sale-ready before the announcement date is the only way to preserve optionality.

3. Are you sale-ready?

Sale-ready means: three years of clean financials, documented operations, no key-person dependency, and a management team that can run the business without you. Owners who are sale-ready can transact on short timelines when conditions are right. Owners who are not, can't.

The bigger picture

The CGT discount review is part of a wider pattern. The Division 296 super tax on balances above $3 million takes effect from 1 July 2026. The ATO has tightened its guidance on home-based business CGT concessions. The small business CGT thresholds have remained unchanged for years while business values have increased.

The regulatory environment for business exits is becoming less favourable over time, not more. Owners who understand the current settings — and act while those settings are known — are in a stronger position than those who assume the rules will stay the same.

They may not.