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Capital gains tax · law from 1 July 2027

Capital gains tax changes

The CGT changes are law and start on 1 July 2027. Growth up to 30 June 2027 keeps the 50% discount; later growth is adjusted for inflation and taxed in full, and individuals pay at least 30% on it. Enter your own figures to see the split.

For information only. The CGT changes are law. Further amendments are before Parliament and the valuation method for 30 June 2027 is still in draft. Figures are illustrative and are not advice for your circumstances.
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Capital gains tax · your gain

Your gain under the new rules

Assets held on 30 June 2027 are treated as sold and bought back that day. The value used is either a market valuation or a formula set by the Government, and you choose which when you lodge the return for the year you sell. That means the choice can be made with the sale price known.

When you later sell, the growth up to 30 June 2027 keeps the 50% discount. Later growth is adjusted for inflation and taxed in full, and individuals pay at least 30% on it.

FIG. 1

Split your gain and compare with the old rules

Individual, 2027–28 rates
Type of asset
2028–29
3.0%
Taxable gain
–
Under the old rules
–
Tax difference
–
Growth to 30 June 2027 (50% discount)Inflation adjustment (not taxed)Later growth above inflation (taxed in full)

Illustrative only. Assumes the asset was held for more than 12 months, a sale on 31 December of the year chosen, and inflation applied for each full year from 1 July 2027 (the law uses quarterly index numbers). The formula follows Treasury’s exposure draft apportioning determination (3 August 2026), which is not yet made and may change: it uses the purchase price only, so improvements are ignored, and it is not available for listed shares and units. The purchase price is used as the whole cost base. Tax shown is the extra income tax the gain adds, including any 30% floor top-up, before the Medicare levy. People receiving a listed government payment are exempt from the floor; that exemption is not modelled.
This needs advice if the asset is your home or was ever part of it, you may use the small business CGT concessions, the asset was acquired before 20 September 1985, you were a foreign or temporary resident after 1 July 2027, you receive a government payment, or the asset is a new residential dwelling. The calculator does not model these.
Your summary

Your summary

This brings together the figures you entered above. Nothing you enter is stored or sent anywhere unless you request a detail pack.

FIG. 2

Summary of your figures

Illustrative only, using the assumptions set out under each figure above. Based on the law and the trust Bill as passed by the House of Representatives, which may change in the Senate. It is not advice for your circumstances.

Want this worked through properly?

Request your detail pack. We prepare a fuller analysis of your structure from these figures, then go through it with you and document a plan.

Want the detail behind the calculator? Read the full explanation.

Before 30 June 2027

What to do now

What is worth doing now

  • Keep your records: contracts, settlement dates and improvement costs for everything you hold.
  • Ignore the sales pitch: valuers and restructure specialists are already circling. A 30 June 2027 valuation can be prepared after that date if the evidence exists.
  • Call us before you transact: a purchase, sale, family transfer or restructure.
  • Do not defer estate planning: it should not wait for tax laws to settle.
Next steps

Keep going

CGT

Capital gains tax changes

Law from 1 July 2027. Split your gain at 30 June 2027, compare a valuation with the Government formula and see the tax against the old rules.

Model your gain → Trusts

Proposed family trust tax

Proposed from 1 July 2028. Build your family group, compare a wage with distributions and test the opt-out election.

Model your family group → Read

The full explanation

Both changes explained in one place, with a worked case study, the options for each trust and short answers to client questions.

Read it → Workers

The $1,000 work deduction

From 2026–27, an automatic deduction with no receipts. See whether claiming your own expenses would give you more back.

Check your options → Cars

Car logbooks that hold up

The 12-week rule, what each trip needs, where logbooks fail, and whether a logbook beats 91 cents a kilometre.

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