Any details on how that disclosure works re: the 80%? Is it a good faith disclosure? And how does a small business quantify this upon assumption of work? Their invoice amounts may vary (as they do with small businesses) and the company might take on new clients in the year, at which point they have operated at a cash flow disadvantage of up to 25%. I can see it from SARS's point in terms of there being an opportunity to evade a portion of tax if people adopted this approach, but surely there are other mechanisms which would be far more efficient? I mean SARS still have recourse at the end of the tax year upon submission if it is shown that >80% of revenue was generated from a single client. Is their reasoning here to prevent shock tax bills? If so, then I don't see how impeding cash flows can be a viable solution...