<Table> <Tr> <Th_colspan="2"> Prime Minister of Australia </Th> </Tr> <Tr> <Td_colspan="2"> Commonwealth Coat of Arms </Td> </Tr> <Tr> <Td_colspan="2"> Incumbent Malcolm Turnbull since 15 September 2015 </Td> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Government of Australia </Li> <Li> Department of the Prime Minister and Cabinet </Li> </Ul> </Td> </Tr> <Tr> <Th> Style </Th> <Td> <Ul> <Li> The Honourable (formal) </Li> <Li> Prime Minister (spoken) </Li> <Li> His / Her Excellency (in international correspondence) </Li> </Ul> </Td> </Tr> <Tr> <Th> Member of </Th> <Td> <Ul> <Li> Cabinet </Li> <Li> National Security Committee </Li> <Li> Federal Executive Council </Li> </Ul> </Td> </Tr> <Tr> <Th> Reports to </Th> <Td> Parliament, Governor - General </Td> </Tr> <Tr> <Th> Residence </Th> <Td> <Ul> <Li> The Lodge </Li> <Li> Kirribilli House </Li> </Ul> </Td> </Tr> <Tr> <Th> Seat </Th> <Td> Canberra </Td> </Tr> <Tr> <Th> Appointer </Th> <Td> Governor - General of Australia by convention, based on appointee's ability to command confidence in the House of Representatives </Td> </Tr> <Tr> <Th> Term length </Th> <Td> At the Governor - General's pleasure contingent on the Prime Minister's ability to command confidence in the lower house of Parliament </Td> </Tr> <Tr> <Th> Inaugural holder </Th> <Td> Edmund Barton </Td> </Tr> <Tr> <Th> Formation </Th> <Td> 1 January 1901 </Td> </Tr> <Tr> <Th> Deputy </Th> <Td> Michael McCormack </Td> </Tr> <Tr> <Th> Salary </Th> <Td> $527,852 (AUD) </Td> </Tr> <Tr> <Th> Website </Th> <Td> pm.gov.au </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Prime Minister of Australia </Th> </Tr>

How long is the term of a prime minister in australia