If you are an individual provisional taxpayer your first 2019 provisional payment is due on 31 August.
P.S. If South Africa’s various double taxation agreements, information exchange agreements and other international tax treaties are of interest to you, have a look at SARS’ inter-active world map of them on its “International Treaties & Agreements – Map” page here.
Disclaimer: The information provided herein should not be used or relied on as professional advice. No liability can be accepted for any errors or omissions nor for any loss or damage arising from reliance upon any information herein. Always contact your professional adviser for specific and detailed advice.