Federal Nationals MPs have cast doubt over the idea of raising the rate of the GST and handing more money to the states.
Prime Minister Malcolm Turnbull says changes to the GST are being considered as part of a broader package of tax reform the coalition will take to the election.
But he has yet to say whether the government will do what Labor expects it to do and jack up the rate from 10 per cent to 15 per cent.
Queensland Nationals MP George Christensen said the government needed to get rid of taxes.
"I didn't come into federal parliament to increase taxes and increase the tax burdens on Australians," he told reporters in Canberra on Wednesday
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"The number one aim is to make the tax system better to stimulate growth and job creation."
Fellow MP Ewen Jones said he supported a tax system which allowed people to invest and improved business.
"If we remove those barriers like stamp duty and payroll tax - if we can get of those things - while looking after the most vulnerable, then we are moving in the right direction," Mr Jones said.
"Does that include an increase in the GST? I would be against giving one extra cent to any state government at the moment because I don't think they are spending it well."
