If you didn’t receive family assistance in 2016–17
You may be able to claim your payments as a lump sum. You have until 30 June 2018 to submit a claim for:
Family Tax Benefit (FTB)
Child Care Benefit (CCB)
Single Income Family Supplement (SIFS)
https://www.humanservices.gov.au/individuals/news/havent-lodged-lump-sum-claim-or-done-your-tax-2016-17mia
