This study examined the financial impact of cancer and the use of income support in adolescents and young adults (AYAs) with cancer and their parent caregivers. As part of a national Australian study exploring the psychosocial impacts of cancer, 196 AYAs ages 15 to 25 years, six to 24 months from diagnosis, and 204 parent caregivers from 18 cancer sites were surveyed. Logistic regression and chi-square analyses were conducted to assess the influence of clinical and sociodemographic variables on financial status.