This paper reviews the system for social cash transfers in Namibia, a middle-income country with a long experience in making available a universal and non-contributory old age pension, child grants using means-testing and quasi-conditionalities and other cash transfers. The paper traces the origins of the cash transfers back to the country’s past annexation into apartheid South Africa and shows how Namibia’s system is now faced with a set of distinct challenges that are particularly pertinent as the authorities are rapidly scaling-up access. Notably, in the years after the remaining elements of racial discrimination were eliminated, and the value of the transfers were equalised across the ethnic groups, new discrepancies have developed in the values of the different grants. Moreover, using newly available household data the paper finds inefficiencies in the means-testing for the child grants – especially when compared to South Africa. In spite of these challenges the paper also shows that social cash transfers have a large effect on poverty reduction and that the effects are particularly positive for the poorest of the poor. The transfers also tend to reduce inequality but this impact is more limited. Simulations indicate the fiscal sustainability of an expanded system of social cash transfers and highlight the potential cost-savings that would accrue from a more effective means-test of the child grants. In the analysis the effects of using income and expenditure data as the basis for the welfare variable are discerned.