For a Low Income Health Care Card application, you may need identity details, your Tax File Number, Australian residency information, and recent income details for you and your partner. Centrelink may ask for evidence such as payslips, separation details, or other documents depending on your circumstances, and generally assesses your income over the relevant period. You can claim through your Centrelink online account linked to myGov, or contact Services Australia if you need help. Check the current checklist and income test at servicesaustralia.gov.au, as requirements can change and eligibility is decided by Services Australia.