Where pre-action procedures have been complied with and agreement cannot be reached, or where the matter is exempt from pre-action procedures, the documents needed to apply are the Initiating Application, and a Financial Statementwith details of all financial circumstances.
These are filed in court and served, and the other party responds with a Response to Initiating an Application and Financial Statement.
Filing fees apply to both an Initiating Application and a Response to Initiating Application.
For the relevant fees and documents, see the Federal Circuit and Family Court of Australia's website.