I'm in the same boat. Have never paid provisional tax before and received the same comms as part of my SARS assessment last year (after receiving additional income through investments). After reading Purply's responses, I think I have also going to not submit them this year and see what happens. Once I register as a provisional payer, then I would expect them to be very stringent in terms of late payments etc... but since the system still doesn't have me registered as such, I would imagine they'd be happy as long as you are able to make the payments on time when submitting your ITR12... here's hoping