Labor’s contentious tax reforms will become law after the Greens agreed to support legislation through the Senate in return for extending an inquiry into separate NDIS changes.

The minor party struck a deal with the government on Tuesday to pass the bill this fortnight in exchange for extending an inquiry into separate changes to the National Disability Insurance Scheme.

The Greens also secured a handful of amendments to the tax changes.

The Coalition has strongly opposed the tax changes unveiled in last month’s federal budget, saying they will hurt young home-buyers and small businesses. That left the Greens as the only path for Labor to get the bill through the Senate.

Under the agreement, the government will close a loophole where people can buy property through self-managed super funds to avoid the capital gains tax increase.

Prime Minister Anthony Albanese, Treasurer Jim Chalmers and Finance Minister Katy Gallagher confirmed the deal in a statement on Tuesday.

“Passage of this important legislation this fortnight will provide workers, businesses and investors certainty about the core tax settings that will apply from July 1, 2027,” it said.

“The government will continue to develop further tranches of legislation to implement the budget tax reform package, consistent with the process for legislating other large tax reform packages in the past.”

In exchange for the Greens’ support of the tax changes, the government has agreed to extend the NDIS inquiry by eight weeks. It has also made amendments to the NDIS bill, curbing ministerial powers and improving transparency.

But the Greens say even with those changes, they will still oppose the bill.

The final report from a snap parliamentary inquiry on changes to the $56 million NDIS scheme was due to be tabled on Tuesday after two extensions were granted.

However, an interim version is expected to be tabled instead. The committee will now deliver its final report by August 14.

The proposed NDIS overhaul would boot 160,000 people from the scheme to rein in spending and leave thousands more with less funding.

The Greens said the delay would allow more time to build pressure on Labor and the Liberals to withdraw support for the bill entirely.

-AAP