The Greens will push Labor to lower the threshold at which its new superannuation tax kicks in from $3 million to $2 million and limit the ability of self-managed super funds to borrow to invest in property in return for their support for the measure.

Citing Australian Taxation Office data, the Greens argue that setting the threshold at $2 million will capture an additional 24,000 accounts but still only hit “the wealthiest 1 per cent”.