No action from Abbott on Speaker

The Finance Department's inquiry into Bronwyn Bishop was not triggered by a referral from the prime minister but the Speaker herself.

The PM has not referred any issues relating to Speaker Bronwyn Bishop to the Department of Finance. (AAP)

Prime Minister Tony Abbott has not referred any issues relating to Speaker Bronwyn Bishop to the Department of Finance.

Mrs Bishop is under pressure to resign over her claiming of expenses for a helicopter charter from Melbourne to Geelong for a Liberal fundraising event last November.

Her office told AAP on Wednesday the only Finance Department action underway is that in response to a request from the Speaker herself to check the legitimacy of all of her charter transport claims since she took on the job in 2013.