Family Tax Benefit Calculator
Estimate your Family Tax Benefit Part A and Part B using your family income and children’s details.
Uses rates for the 2026–27 financial year. Figures last checked 5 September 2026.
Your family details
Use adjusted taxable income where possible.
What this estimate includes
Included
- 2026–27 Part A standard and base rates
- Part A lower and higher income tests
- Part B primary and secondary earner tests
- Children’s ages and percentage of care
Not included
- Rent Assistance or Energy Supplement
- Newborn payments or multiple birth allowance
- Maintenance Income Test calculations
- Return-to-work exceptions and past income credits
Rates and thresholds checked on 5 September 2026 against Services Australia and the Department of Social Services Family Assistance Guide.