The South African Revenue Service has set out the filing and payment rules for the Global Minimum Tax, South Africa’s version of the OECD’s Pillar Two regime. In an update published on 1 June 2026, SARS said the rules levy a top-up tax where a jurisdiction’s effective rate falls below the 15% minimum. Affected multinationals must now file a Global Minimum Tax Return (GMT01), a declaration form (GMT02) and the tax calculation for the relevant year.
SARS confirmed returns and payments fall due 15 months after the fiscal year ends, or 18 months for the first year beginning on or after 1 January 2024. Payment may be made by a multinational enterprise or domestic constituent entity through eFiling. The move aligns South Africa with the global drive to ensure large multinationals pay a minimum level of tax.
To support compliance, SARS has issued a new guide for filing the returns on eFiling and updated its payment rules guide. The step signals that its administrative systems for the new tax are now live. Groups within scope are expected to review the guidance ahead of their first deadlines.