The proposal would make the following amendments to superannuation.

Component 1: Reduce the non-concessional contributions cap from $100,000 to $75,000 and index the cap as per current arrangements.

Component 2: Reduce the Division 293 threshold from $250,000 to $200,000.

Component 3: Individuals would no longer be able to carry forward the unused portion of the concessional superannuation contributions cap to future years.

Component 4: Individuals who do not meet the 10 per cent income test for personal superannuation contributions (which applied prior to 1 July 2017) would no longer be able to claim a tax deduction for personal superannuation contributions.

Components 1 to 3 would commence on 1 July 2019.

Component 4 would commence on 1 July 2020.