Reforming capital gains tax
From 1 July 2027, the current 50% capital gains tax (CGT) discount for assets held longer than 12 months will be replaced with a cost base indexation system, together with a 30% minimum tax on net capital gains. The changes will apply broadly to CGT assets (including pre-CGT assets) held by individuals, trusts and partnerships. New residential builds will be excluded.
Under the proposed approach, instead of reducing capital gains by 50%, the cost base of an asset will be increased in line with inflation (CPI) before calculating the taxable gain. The aim is to ensure only 'real' (inflation-adjusted) gains are taxed.
Transitional rules will apply to existing investments. Assets sold before 1 July 2027 will continue to access the existing CGT discount. For assets held at that date, gains accrued up to 1 July 2027 will generally retain the 50% discount, while gains after that date will be calculated using the new indexed cost base system and will be subject to the 30% minimum tax.
It’s worth noting that SMSFs will continue to retain the current one-third (33.33%) CGT discount for assets held longer than 12 months and will not be subject to the proposed 30% minimum tax rate on capital gains.
To apply the transitional rules, taxpayers will need to determine an asset’s market value as at 1 July 2027 when it is eventually sold. This can be done by either:
• obtaining a formal valuation (including the use of quoted market prices where relevant), or
• using an ATO-approved apportionment method based on estimated growth over the holding period.
These transitional arrangements will also extend to legacy and pre-CGT assets, although gains made before 1 July 2027 on pre-CGT assets will remain exempt.
Owners of newly constructed residential properties will be able to choose between the existing CGT discount or the new indexation method, although the 30% minimum tax will still apply. Eligible new builds generally include newly constructed dwellings or developments replacing multiple dwellings, but exclude knock-down rebuilds and substantial renovations.
Example
Maggie purchases an asset on 1 July 2022 for $800,000 and sells it on 1 July 2032 for $1.6 million.
Using ATO tools, she determines the asset’s value at 1 July 2027 is $1,131,371.
Under the transitional rules:
• the pre-commencement portion of the gain receives the existing 50% CGT discount, and
• the post-commencement portion is taxed using the indexed cost base method.
Her total taxable capital gain is $485,643, compared with $400,000 under the current 50% discount system.
Assuming a 47% marginal tax rate, her tax liability would be approximately $228,252, compared with about $188,000 under the existing rules.
Discretionary trusts to be taxed at minimum 30%
From 1 July 2028, a proposed minimum 30% tax will apply to the income of discretionary trusts.
At present, discretionary trusts are generally not taxed as separate entities. Instead, trust income is taxed in the hands of beneficiaries who are made presently entitled to receive it.
Under the proposed changes, trustees will be required to pay at least 30% tax on the taxable income of the trust. Beneficiaries will receive non-refundable tax credits for any tax already paid at the trust level.
Trustees will also be responsible for calculating, reporting and paying the tax, as well as notifying beneficiaries of their entitlements and associated credits.
The measure will not apply to unit trusts or widely-held trusts, complying superannuation funds, special disability trusts, deceased estates, or charitable trusts.
Certain income will also be excluded, including income from existing discretionary testamentary trusts (in place as at 7:30pm AEST on 12 May 2026), as well as certain primary production income and income relating to vulnerable minors.
A three-year rollover relief period from 1 July 2027 is also proposed to allow taxpayers to restructure out of discretionary trusts into alternative structures such as companies or fixed trusts.