Federal treasurer Scott Morrison has brushed aside suggestions he is being shunted as the government's chief economic salesman heading into the May budget, following reports of disquiet in government ranks about his performance.

Mr Morrison dismissed an ABC report suggesting he would take a back seat to Malcolm Turnbull in the lead up to the budget and said the Prime Minister was "always the chief economic spokesperson for the government. Always has been. Always should be".

"The Prime Minister and I work together as a team on these things. We work on budgets together as we are now."

However, Coalition MPs have this week been discussing a reshuffle in June, after the federal budget, that could see some members of Mr Turnbull's ministry dumped and others promoted.