Family Tax Benefit Calculator Australia
Estimate your Australian Family Tax Benefit (Part A and Part B) entitlement based on 2023–24 rates, children's ages, and family income.
About the Family Tax Benefit Calculator Australia
Family Tax Benefit (FTB) is an Australian government payment administered by Services Australia (Centrelink) to help families with the costs of raising children. It consists of two parts: FTB Part A, paid for each eligible child and based on family income and the children's ages, and FTB Part B, paid per family (not per child) and based primarily on the income of a secondary earner or single parent.
FTB Part A is a fortnightly payment for each child up to age 19 (if a full-time secondary student). The maximum fortnightly rate for 2023–24 is $222.04 per child aged 0–12 and $288.82 for children aged 13–15 (or 16–19 in approved study). These rates begin reducing once combined family income exceeds $62,634 per year, phasing out at 20 cents per dollar of excess income. A minimum rate of $68.46 per fortnight per child applies for families with income up to approximately $100,000.
FTB Part B provides additional support for families where one parent is the primary carer. For 2023–24, the maximum fortnightly rate is $168.28 when the youngest child is under 5, and $117.46 when the youngest is aged 5–18. FTB Part B is available to single parents regardless of income, and to couples where the secondary earner's income is below $5,694 per year (approximately $219 per fortnight). Our calculator provides estimates — actual entitlements depend on income confirmation, immunisation requirements, and other factors.
FTB Part A vs Part B: Key Differences
FTB Part A is paid per child. Its amount depends on the child's age, whether the family has one or more children, and the combined family income. It is designed to help with general costs of raising children and scales with the number of children in the family. Single parents and low-income couples receive the highest rates; higher-income families may receive a reduced rate or nothing at all once income exceeds the upper cutout threshold.
FTB Part B is paid per family, not per child. It is intended to support families where one parent is the primary carer — either a single parent, or a couple where one partner earns significantly less than the other. The secondary earner income test means couples where both partners earn substantial incomes may not qualify for FTB Part B, as the payment assumes one parent has significantly reduced their workforce participation to care for children.
Families can choose to receive FTB as regular fortnightly payments throughout the year or as an annual lump sum after lodging their tax return. Regular payments provide cash flow support but require an income estimate at the start of the year — if your actual income is higher than estimated, Centrelink may require repayment of overpaid FTB. To avoid debt, err on the side of slightly overestimating your family income when setting your rate.