SARS’s Payment Rules guide (revision 39, effective 16 October 2026) adds dedicated Investec Bank instructions for Global Minimum Tax payments from overseas. Section 3.5(d) requires the SWIFT route through Investec and the prescribed Payment Reference Number (PRN); the separate FNB foreign-payment table expressly excludes GMT. The route is restricted to non-domestic foreign taxpayers without another available payment channel. A foreign taxpayer with a South African bank account may not use SWIFT. Payments must be in rand, with the correct 19-digit PRN, and bank charges must not reduce the amount due to SARS. This is an administrative payment-channel update under the existing GMT framework. SARS announcement, 16 October; Official guide, sections 3.5 and 4.