Start by creating a myGov account, then link Centrelink using your Customer Access Number (CRN) and identity details. Once linked, you can view payments, update personal information, upload documents, report income and submit some claims online. Keep your contact details and bank information current, and check your myGov inbox for messages or requests from Services Australia. If you have trouble linking the service or are unsure which documents are needed, follow the guidance on servicesaustralia.gov.au or contact Services Australia directly.