The legislation to enact the Government’s seven-year personal income tax reform plan, as announced in the 2018 Federal Budget, passed Parliament on 21 June 2018.

Under the plan, a new non-refundable Low and Middle Income Tax Offset (LMITO) will be available from 2018–2019 to 2021–2022, providing tax relief of up to $530 to low-income individuals for each of those years. The new offset will be in addition to the existing low income tax offset (LITO). The top threshold of the 32.5% tax bracket will increase from $87,000 to $90,000 from 1 July 2018.

In 2022–2023, the top threshold of the 19% bracket will increase from $37,000 to $41,000 and the LITO will also increase.

The top threshold of the 32.5% bracket will then increase from $90,000 to $120,000 from 1 July 2022.

The legislation passed without amendments, although some had been raised in the Senate that would have prevented increasing the top threshold of the 32.5% bracket from $120,000 to $200,000 from 1 July 2024, removing the 37% tax bracket completely. This third step of the seven-year plan will now go ahead under the new tax law. And finally, taxpayers will pay the top marginal tax rate of 45% for taxable income exceeding $200,000.