Millions of South Africans earn extra income through side hustles — from selling on WhatsApp and Takealot to freelancing, tutoring, and driving for ride-hailing apps. But many are unsure how to handle this income when SARS tax season arrives. This guide is designed to help you understand your obligations and may assist you in avoiding costly penalties. The guide walks you through how SARS treats side hustle income, what expenses you may be able to deduct, and how to declare additional earnings on your tax return whether you are a PAYE employee or self-employed. It includes practical examples relevant to common South African side hustles and explains the provisional tax system in plain language. By following the steps outlined in this guide, you can assist yourself in staying on the right side of SARS while keeping more of your hard-earned money. It is designed to complement — not replace — advice from a registered tax practitioner, and is ideal for anyone earning between R1 and R500,000 per year from additional income streams.