Contentious tax reforms are set to become law after the Greens agreed to support Labor's 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, saying they will hurt young home buyers and small businesses, leaving 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 CGT increase.