Family Tax Benefit (FTB) is a payment that can help eligible families with the cost of raising children. FTB Part A is generally based on the number and age of children, family income and care arrangements, while Part B may provide extra support to some single parents and families with one main income. You usually need to meet residence and child-care requirements, and your payment can change if your circumstances or income change. Services Australia decides eligibility and the amount payable, so check the current rules and claim options through myGov or servicesaustralia.gov.au.