If gender is neglected in the design and implementation of mainstream social welfare models, unequal social and economic outcomes for men and women tend to be reproduced. This paper contributes to debates about how social protection can contribute to promoting gender equality by considering the gendered redistributive and transformative effects of three types of social security instruments in South Africa: social assistance, unemployment insurance and public employment programmes. All the instruments have some pro-poor and gendered design innovations. The Child Support Grant has had better outcomes than the other instruments, but redistributive and transformative gender effects across the social security spectrum are disappointing. Limited social transformation is largely due to implementation inefficiencies and unresponsive institutions. To serve both economically redistributive and socially transformative ends, gender-sensitive synergies between social security instruments and with other multisectoral interventions could be strengthened, such as access to social services (especially quality child care) and access to basic services (such as water, electricity, transport and internet services).