The 2018 deal by the Liberal party under Scott Morrison to shore up political support in the west is costing federal taxpayers more than $6 billion a year.

East-coast treasurers will press Jim Chalmers to act on a widely expected recommendation to axe Scott Morrison’s special GST deal for WA.

The 2018 deal by the Liberal party under Scott Morrison to shore up political support in the west is costing federal taxpayers more than $6 billion a year.