Tasmanian Premier Lara Giddings is tipped to call an election within days and dump the Greens as a power-sharing partner.

It follows an admission from Greens leader Nick McKim that he does not know if he will still be a member of Cabinet this time next week.

It is understood Ms Giddings has been pressured by a majority of caucus to sever ties with the minority party in a bid to "save the furniture" at the next state poll.

Mr McKim will not say whether he has had a conversation with Ms Giddings about his position in Cabinet.

The Greens leader and Education Minister says he is continuing to fulfil his ministerial duties.

But at a media conference in Hobart, Mr McKim could not tell reporters how much longer he would be in Cabinet.

"I don't know ... I mean, we've got an election obviously coming up quite soon in Tasmania and I'm not in the business of taking election outcomes for granted," he said.

The power-sharing deal with the Greens was struck after the 2010 state election.

Labor backbencher Brenton Best has been stepping up pressure on Ms Giddings to ditch the deal, at one time calling for her to step aside if she did not.

The Premier has recently said she has been frustrated at times with having Greens ministers in the Cabinet.

Mr McKim used the media conference to fire a broadside at Labor MPs.

"I reckon Tasmanians are just sick and tired of political babble," he said.

"The Labor Party's having meetings and not revealing what happened, again, it's just politicking. People want to know what your values are, what your vision is."

Shadow treasurer Peter Gutwein is accusing Labor and the Greens of treating voters with contempt.

"Lara Giddings is leading a dysfunctional, paralysed government," Mr Gutwein said.

"What is she going to do? When is she going to tell Tasmanians what they're strategy is? It is the height of arrogance to see senior government leaders say to the Tasmanian people, 'look, we've got a strategy, but we'll tell you when we're ready'."

The Liberals maintain they will not govern in minority, but questions remain about what will happen if they fail to win at least 13 seats, the minimum needed for a majority.

Mr Gutwein said he would not comment on "hypotheticals".

It is believed the Premier will dump the Greens from Cabinet next week and call the election at the same time.

It means Tasmanians could be voting as early as February 22 or enduring a marathon campaign and going to the ballot box at the end of March.