The participants in the Prime Minister's reform summit say it was a constructive meeting, but are unable to give details on what the Federal Government will adopt as policy.

Representatives from eight key groups have gathered at Parliament House in Canberra for a three-hour meeting to discuss the nation's economic future and potential structural reform.

However, at a press conference afterwards, none of the participants could give details on potential reforms, nor a timeframe in terms of either a Government response or public discussion.

Australian Council for Social Service chief executive Cassandra Goldie repeated the Government's line that "nothing was off the table", but was unable to confirm any concrete reforms that may come about as a result.

Ms Goldie said she and other stakeholders were encouraged by the meeting, despite failing to reach a consensus on potential tax changes.

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"The Prime Minister was very clear in sending a message to us that this process is about a step in an ongoing discussion," she said.

Stakeholders emphasised the need to work more closely with state governments in regards to reforming areas such as stamp duty and land tax.

The Australian Council of Trade Unions' Dave Oliver also cited the need to address the impacts of a rapidly changing and increasingly digital world.

"It's about investing in infrastructure, investing in innovation, it's investing in skills, and we are keen to have a discussion about the changing nature of work as well, and what does it mean," he said.

Kate Carnell from the Australian Chamber of Commerce and Industry said some ideas to address issues of education and training were discussed, but told media that "we won't talk about [that] until we've worked them up".

Speaking ahead of the summit, Prime Minister Malcolm Turnbull told the ABC that everything was on the table.

"We've all got a vested interest in there being an open debate, all things being on the table, nobody assuming that they've got the right answer," he said.

"Of course, at the end of the day, the Government has to make some decisions."

Mr Turnbull said he would not be locked into a timetable for progress, including the release of the tax green paper, saying he was "expeditious but not rash".

"I'm not going to set out a timetable," he said.

"I'm an activist, but I'm a thoughtful and considered activist."