Applying for the Disability Support Pension (DSP) through Services Australia is free. You may need medical evidence from a doctor or other health professional, and they may charge for appointments or written reports, so ask about fees beforehand. If Services Australia arranges a medical assessment, it will provide information about the appointment and any relevant arrangements. The DSP rate you could receive depends on your circumstances, including your income, assets, age and living situation, and is decided by Services Australia.