This article draws on interviews with 41 Australian separated mothers, and the government forms, information and instructions used to administer their child support and benefit entitlements, to reveal four tactics through which women’s decision-making was coordinated to produce financial benefits to the state. The state pursued its preferred outcome by foregrounding women’s obligation to seek and collect child support, while at the same time, information on alternative choices was made deliberately opaque – making the state’s foregrounded option more likely. If women were entitled to, or sought, options that lay outside the default choice, the onus was on them to investigate, instigate and persevere with what was made to be a deliberately onerous and opaque process. As a result, the administration of Australian child support policy perpetuated low-income women’s experiences of economic and social inequity, entrenching the feminisation of poverty in single parent families.