The Senate could team up to derail Labor’s agenda, with the Coalition seeking a longer tax inquiry while the Greens want more time to investigate sweeping changes to the NDIS.

The government is attempting to shut down scrutiny of the federal budget by allowing two days for a parliamentary inquiry into its controversial tax changes.

Plans by the government to ram its capital gains tax and negative gearing budget measures and NDIS legislation through parliament face a last-minute hiccup.