Western Australian Treasurer Troy Buswell has ruled out becoming premier or leader of the Liberal Party at any time in the future.

There has been speculation that Premier Colin Barnett was going to hand over power to the Treasurer during the next term of Government if the Liberals win tomorrow's state election.

Both men have denied a deal exists.

Mr Buswell has told The World Today that he will not be premier and he will never change his mind.

"I am very comfortable in my job," he said.

"I have been the leader of the Parliamentary Liberal Party before for a brief but interesting period.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Listen Duration: 3 minutes 37 seconds 3 m 37 s Listen to the interview Download 1.7 MB

"I am not going to do that again.

"So given that that is never going to happen, by extension I am never going to be the premier.

"That's my very strong view and that will never change."