Federal Treasurer Jim Chalmers has launched an extraordinary broadside at Queensland Treasurer David Janetzki, as the two openly clash about the Productivity Commission's long-anticipated inquiry into the Goods and Services Tax distribution deal.

GST income distribution has long been a tense issue, with a 2018 reform guaranteeing a minimum share of GST revenue for all states and territories - which significantly benefited Western Australia and disadvantaged Queensland and New South Wales.

Queensland Liberal Treasurer David Janetzki - who has been a long-time critic of the current arrangement - accused federal Treasurer Jim Chalmers of plotting a watered-down review of the GST distribution and said the resource rich state would continue to be penalised for producing gas.

Mr Janetzki said

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