South Africa’s supreme audit institution has appointed Sibongiseni Ngoma as Deputy Auditor-General (DAG), marking a significant milestone in the organisation’s 115-year history. Ngoma becomes only the second woman to hold the position since the Auditor-General South Africa (AGSA) was established, taking office officially on 1 June 2026 after serving in an acting capacity since February.
The appointment comes at a pivotal moment for AGSA as the institution expands its oversight role under enhanced audit and accountability powers, while simultaneously implementing its long-term organisational transformation strategy known as Culture Shift 2030.
Auditor-General Tsakani Maluleke confirmed the appointment following consultation with Parliament’s Standing Committee on the Auditor-General, as required by the Public Audit Act. The legislation stipulates that the Deputy Auditor-General must possess the necessary qualifications and experience to support the institution’s constitutional mandate. The position carries a term of up to five years, with the possibility of a single renewal.
As Deputy Auditor-General, Ngoma assumes responsibility as AGSA’s accounting officer, placing her at the centre of the institution’s operational management, financial governance and strategic execution. The role is critical to ensuring that South Africa’s national audit office continues to deliver independent oversight of public finances while supporting efforts to improve accountability across government.
Ngoma brings more than two decades of financial leadership and governance experience to the position. A Chartered Accountant (SA), she completed her professional training at Ernst & Young before joining the Industrial Development Corporation (IDC), where she held several senior positions, including Head of Internal Audit. She joined AGSA in 2012 as a corporate executive responsible for finance, human resources and legal services before being appointed Chief Financial Officer in 2015.
Her leadership credentials have been recognised extensively within the profession. In 2021, she was named CFO of the Year and Public Sector CFO of the Year at the annual CFO Awards. During the same year, she also received recognition from African Women Chartered Accountants and the Association for the Advancement of Black Accountants of Southern Africa, reflecting her influence within both the public sector and the broader accounting profession.
The appointment highlights AGSA’s focus on leadership continuity and internal succession planning. Ngoma has played a prominent role in implementing the institution’s Culture Shift 2030 programme, an initiative designed to strengthen organisational performance, leadership development, innovation and accountability across the audit office.
Her promotion also comes as AGSA assumes an increasingly influential position within South Africa’s public accountability framework. Since the implementation of the Public Audit Amendment Act in 2019, the institution’s powers have extended beyond traditional auditing functions. AGSA can now identify material irregularities, direct corrective action, refer matters to law enforcement agencies and issue certificates of debt against accounting officers who fail to prevent or recover financial losses.
The impact of these expanded powers has become increasingly visible. According to AGSA’s 2023/24 annual report, the material irregularity process contributed to the recovery and prevention of R3.47 billion in potential financial losses across public institutions. In late 2025, the organisation issued its first certificate of debt, marking a significant escalation in enforcement measures aimed at strengthening accountability within the public sector.
AGSA’s Expanding Accountability Role
| Key Indicator | Outcome |
|---|---|
| AGSA Age | 115 Years |
| Deputy Auditor-General Appointments | Second Woman in History |
| Material Irregularity Powers Introduced | 2019 |
| Financial Losses Prevented or Recovered (2023/24) | R3.47 Billion |
| First Certificate of Debt Issued | 2025 |
| Deputy Auditor-General Term | Up to 5 Years, Renewable Once |
Ngoma’s appointment also reflects broader changes within South Africa’s financial and governance sectors, where efforts to improve gender representation in senior leadership positions have gathered momentum over the past decade. While women now occupy several high-profile executive roles across auditing, banking and financial services, leadership positions within oversight institutions have historically remained male-dominated.
Her elevation to one of AGSA’s most senior positions therefore carries significance beyond the organisation itself. It signals the growing prominence of female leadership within South Africa’s governance and accountability landscape at a time when public institutions face increasing pressure to strengthen financial controls, improve service delivery oversight and rebuild public trust.
With AGSA entering a new phase of enforcement-driven auditing and organisational transformation, Ngoma assumes office at a time when effective operational leadership will be central to ensuring the institution continues to play its constitutional role as the country’s primary guardian of public financial accountability.