If your business runs through a private company, the CGT change at 30 June 2027 mostly reaches you through your shares, not the company's own assets. CGT is capital gains tax, the tax on a gain when you sell an asset for more than it cost.
Reviewed 24 October 2026. General information only, not tax advice: ask your accountant.
Does the 30 June 2027 change reach my company?
Mostly not: companies never had the 50% CGT discount, and the main deemed-sale rules don't apply to a company's own assets.
- The 50% discount halves the taxed part of a gain on an asset held at least 12 months. It is for individuals and trusts (super funds get a smaller discount), never companies (ITAA 1997 s 115-10, s 115-25, s 115-100).
- A deemed sale treats an asset as sold just before 1 July 2027 and bought back at market value, broadly the price a willing, informed buyer and seller would agree on (ATO guide). The main rules cover Australian resident individuals (s 112-155) and, generally, trusts (s 112-165).
- The exception is pre-CGT assets, broadly those acquired before 20 September 1985: their own deemed sale also reaches companies, ending their pre-CGT status and resetting their cost base (broadly, what they count as having cost), generally to market value (s 112-175, s 4-5, s 149-10).
Questions people ask
My business is run through a company. Does 30 June 2027 affect me?
It can. A company's own assets mostly sit outside the 30 June 2027 deemed-sale rules, but private company shares held by an Australian resident individual or a family trust are generally treated as sold and bought back at market value just before 1 July 2027.
Is valuing my shares the same as valuing the company's business?
No. For a shareholder, the 30 June 2027 rules generally use the market value of the shares. A share valuation looks at that exact parcel, its rights and whether it carries control of the company, so the result may differ from a simple percentage of the business's value.
Does a valuation of my shares have to be in place on 30 June 2027?
No. The ATO said on 19 October 2026 that a valuation doesn't have to be in place on 30 June 2027 and shouldn't be obtained before then, as it can't be forward-looking. The law also allows for a formula, an apportioning method the Minister may make, but none had been made at 24 October 2026.
When will the 30 June 2027 value of my shares be used?
The 30 June 2027 value of private company shares is used when they are sold or another CGT event happens. The ATO says you generally don't need to know it for your 2026-27 return, and for most people the earliest return it could affect is 2027-28.
Another question? Call 03 8375 4177.


