https://www.myagedcare.gov.au/income-and-means-assessments/ - fill out self-funded retiree or pension from Centrelink.
Part pensioner can be done over the phone.
Part and Full pensioners do not need to complete form they can call Centrelink to complete it.
1800 227 475
Self-funded retirees need to complete this form – https://www.servicesaustralia.gov.au/individuals/forms/sa486