There is generally no fee to check your eligibility or submit a Centrelink claim through myGov and Services Australia. Whether you qualify depends on the payment, your income, assets, residence, age, work or family circumstances, and other rules. You may choose to pay a professional for financial or welfare advice, but this is separate from applying for Centrelink. Check the relevant payment page at servicesaustralia.gov.au, or contact Services Australia if you need help with your circumstances.