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Family Tax Benefit Calculator

Estimate Part A and Part B and compare two family income scenarios.

Family income

Family status

Assessment year

Children and care

Number of children

Child 1

Use the whole percentage determined for this carer.

Child 2

Use the whole percentage determined for this carer.

Maintenance and comparison
Child support arrangement

One case covers all included children with one recipient.

Maintenance Action Test

Not met applies the base-rate cap to all included children.

Changes your income only. Partner income stays the same.

Indicative annual FTB

$15,759

Standard payments before supplements.

Part A per year

$11,105

Part B per year

$4,654

Revised annual FTB

$13,759

Annual change

-$2,000

Full-year eligible family, unchanged ages and care, two carers at most. Supplements, Rent Assistance, income-support exemptions, Parental Leave Pay and return-to-work adjustments excluded. One maintenance case covers all children.

Family Income and Care

This family tax benefit calculator estimates annual standard Part A and Part B payments for a family with unchanged circumstances throughout the selected year. Compare your client’s original income estimate with a revised amount before reconciling the return.

Enter each adult’s adjusted taxable income. This includes taxable income and relevant adjustments, such as reportable super contributions and net investment losses. Child support paid can reduce adjusted taxable income. Enter child support received separately under maintenance.

Part A uses combined income for a couple. Part B tests the higher earner against an income limit, then reduces the payment using the lower earner’s income. For a single parent, only their income applies.

Enter each child’s age and whole care percentage. Children aged 16 to 19 need qualifying secondary study for Part A. The tool assumes full-time secondary study for older children when you select Yes.

Shared care changes the payment percentage. For example, 40% care gives a 35% payment share. Below 35% care, this tool includes no child-related FTB for that child. The shared-care calculation rules explain the bands.

Family Tax Benefit Components

Part A is calculated per eligible child. Part B is a family payment. Couples generally need a child under 13 for Part B. Single parents can qualify with an older child who meets the relevant school requirements. Part B eligibility ends after the calendar year the youngest eligible child turns 18. Calculate that change separately instead of using a full-year figure.

The figures exclude end-of-year supplements and Rent Assistance. They also exclude newborn payments, Energy Supplement and multiple birth allowance. Full-year residency, immunisation and other eligibility requirements are assumed. The tool does not decide whether a client meets them.

For 2026-27, Part A begins reducing above family income of $69,131. A second income test applies above $123,078. The calculation compares both methods so larger families can retain an amount above the base rate.

The maintenance setting supports one recipient with one child support case covering every included child. Enter the annual amount assessable for FTB, which can include deemed private collections. Maintenance reduces only Part A above its base rate.

If the Maintenance Action Test is not met, the tool caps every included child at the base rate. Use a separate assessment for mixed child support cases, children with different action-test outcomes or maintenance income credits.

Part B excludes days covered by Parental Leave Pay and can change when a parent returns to work. This full-year estimate assumes neither adjustment applies. It also excludes income-support exemptions, grandparent-carer exceptions and changes in ages or care during the year.

The Family Assistance Guide supplies the annual standard rates. Use Services Australia’s Payment Finder for a broader assessment of individual circumstances.

Compare Income Scenarios

In this fictional 2026-27 example, a couple has children aged four and eight in full care. One adult has adjusted taxable income of $65,000 and the other has $10,000. No maintenance applies.

The standard annual estimate is $15,759, comprising $11,105 of Part A and $4,654 of Part B. These displayed figures round each component separately to whole dollars.

If the first adult’s income rises to $75,000, combined income rises from $75,000 to $85,000. Estimated standard FTB falls to $13,759, a $2,000 annual reduction. Part B stays the same because the lower earner’s income stays at $10,000.

Services Australia balances FTB using confirmed family income and the periods of actual eligibility. Supplements and adjustments can change the final amount. An underestimate of family income can produce a debt, even if the original instalments matched the earlier estimate.

Compare the revised estimate with payments already received and update the client’s family income estimate when circumstances change. The calculator keeps figures on this page and sends none to Tax Genie or Services Australia.