Prime Minister Tony Abbott is expected to announce a ministerial reshuffle this afternoon in Canberra.

The changes have been prompted by a decision from Arthur Sinodinos to resign as Assistant Treasurer.

It is expected Mr Abbott will promote the Assistant Education Minister Sussan Ley into Cabinet, making her the second woman in the upper ranks of the ministry.

Current Parliamentary Secretary to the Prime Minister, Josh Frydenberg, is also expected to go into the ministry.

Finance Minister Mathias Cormann told Sky Agenda, he would do whatever job Mr Abbott asked him to do.

“Obviously in the lead up to the next election, or the next year, it will be important to have the best team on the ground and we’ve had a very good team over the past 14 or 15 months,” he said.

“I’m sure the Prime Minister will make the necessary decision to make sure we’ve got the best possible team in 2015 and beyond.”