Victoria Park Mayor Trevor Vaughan says mayors will not support the process without more money.
“We are really gutted because we’ve been supportive of it … and now we get told, ‘Oh, we’re not going to fund the process’,” he said.
“If they want this process to happen, they’ve actually got to fund it.”
He said mayors were “very, very angry”.
“I’ve never seen mayors so united,” he said.
WA Local Government Association president Troy Pickard said the Government needed to commit to funding the full $60 million.
“I would think that the State Government would need to respond within four weeks with a full commitment to fund this process, otherwise it’s off the rail and the structural reform for the metropolitan area hits a roadblock,” he said.
The Local Government Advisory Board is considering submissions from both councils and the public for the proposed boundary changes and is expected to make a recommendation to the Government in June.
Mr Simpson said money was tight and there was little room to move.
“I’m always happy to go into the process of government, into Cabinet to see if I can get more money, but I did forewarn them that I need some hard figures on this reform process,” Mr Simpson said.
He said the full cost of the amalgamations would not be known until the advisory board’s report was released.
“Many people have bandied around figures for how much mergers will cost,” Mr Simpson said.
“Remember that savings will also be made and this process will result in better services for residents across the metropolitan area.”
The proposed amalgamations have proved a headache for the Government, sparking a backlash from Liberal MPs and forcing Premier Colin Barnett into a series of backdowns.
A plan to give the Government greater control over the advisory board was scrapped after opposition from the National Party, while internal Liberal dissent forced Mr Barnett to abandon a provision allowing residents to veto a merger of their councils.
Senior Liberals including South Perth MP John McGrath and South Metropolitan MPs Simon O’Brien and Nick Goiran have been openly critical of the amalgamations.
Mr McGrath accused the Government of using “trickery” and deliberately “misleading” constituents, while Mr O’Brien accused the Government of “peddling lies” over the amalgamations.