South Africa spends R5.4bn yearly on 30,000 foreign inmates as Zimbabwe transfer deal advances

South Africa is spending roughly R5.4 billion annually to house more than 30,000 foreign nationals in its prisons—a staggering expense that has prompted the government to pursue a new path. A memorandum of understanding signed between South Africa and Zimbabwe establishes the groundwork for something that has never been tried at this scale: allowing sentenced prisoners to serve their time in their countries of origin instead.

The Department of Correctional Services confirmed the figures in a recent interview. Of the 30,527 foreign inmates currently held in South African facilities, 4,731 are Zimbabwean—the largest single group. Another 15,284 are classified as sentenced offenders, meaning they have already been convicted and are serving defined terms. The remainder are still awaiting trial outcomes. The daily cost to incarcerate this population alone reaches R14 million, a figure that compounds into an annual burden few governments can easily absorb.

The agreement with Zimbabwe is not a sudden opening of borders. Correctional Services spokesperson Singabakho Nxumalo was careful to emphasize that the memorandum is a framework—a foundation for cooperation that will take time to build. The practical obstacles are real. Parole systems differ fundamentally between countries. In Zimbabwe, a life sentence means serving the entire term behind bars. In South Africa, a life sentence typically requires at least 25 years of incarceration before parole eligibility. These differences must be reconciled before any prisoner can be transferred, and there is no timeline yet for when that will happen.

Yet the human dimension of this problem is clear. Research conducted by the department found that more than 80 percent of foreign nationals surveyed said they would prefer to serve their sentences at home, closer to their families. For many, incarceration in a foreign country compounds the punishment—separation from loved ones, language barriers, cultural displacement. The agreement with Zimbabwe is being pursued alongside negotiations with other Southern African Development Community nations, since Mozambique, Malawi, and Lesotho also account for significant populations of foreign prisoners in South African facilities.

The transfer initiative is also a response to a more immediate crisis: South African prisons are operating at 62 percent overcrowding. The total prison population stands at 173,955 inmates, well beyond designed capacity. Nxumalo acknowledged that moving foreign prisoners will ease some of that pressure, but he was honest about its limits. The overcrowding problem runs deeper than the presence of foreign nationals. Court backlogs, sentencing practices, violent crime, and the lack of alternatives to incarceration are systemic issues that no single transfer agreement can resolve. Solving the crisis, he suggested, requires the entire criminal justice system to work in concert—not just the correctional services alone.

For now, the Zimbabwe agreement remains a framework waiting to be filled in. Over 15,000 sentenced foreign offenders could eventually qualify for transfer once the details are worked out. But the exact number of Zimbabwean prisoners who will actually be moved remains unknown, contingent on how the two countries navigate the technical and legal differences between their systems. What is certain is that South Africa has recognized both the financial unsustainability and the human cost of its current approach, and it is moving, however carefully, toward a different model.