South Africa’s public debt has tripled since the global financial crisis and is not expected to stabilize over the medium term under staff’s baseline. Cross-country evidence suggests that fiscal rules anchored in debt ceilings can be helpful in supporting fiscal adjustments aimed at reducing public debt and bolstering policy credibility. Design features such as institutional coverage, statutory base, correction mechanisms, and flexibility provisions can make the rules more credible and durable, and formal enforcement mechanism and independent institutions can strengthen their compliance. Strengthening South Africa’s fiscal framework by introducing a debt anchor and a credible operational fiscal rule in line with international best practice could help support the authorities’ fiscal objectives and safeguard debt sustainability.