My side hustle started looking a lot fancier in my head the minute the money got real. This wasn’t “bought myself a coffee with the leftovers” real, but “there’s enough here to notice when it lands in the account” real. That’s when the fun ends and the SARS part begins.
A weekend catering business has a way of tricking you. Payments go into your personal account, the job feels small enough to ignore, and then one month you look up and the profit has quietly crossed into proper money. That’s also the moment PAYE from your salary stops being the whole story.
The money in your account is still income
SARS does not care that a client deposited money straight into the same account you use for Woolies, school shoes, and petrol. If the money was earned through your side hustle, it is business income. Personal account, business account, shoebox under the bed—it makes no difference to the taxman.
People get into trouble here. They count the deposits, feel proud of the total, and call it profit. It is not profit until the costs have been taken out. If you catered a 40-person birthday and the client paid you R12 000, that is sales. If ingredients, packaging, gas, delivery fuel, and platform fees swallowed R5 000, the profit is R7 000. SARS taxes the R7 000, not the full R12 000.
This distinction matters more than people want it to. A busy side hustle can look flush while actually being expensive to run. You can make money and still badly underestimate the tax bill because you never separated sales from profit.
The R120 000 example is where this gets real
Take a salaried employee who earns a regular wage through PAYE and also makes R120 000 profit from weekend catering in a tax year. Not turnover. Profit. This is after ingredients, foil trays, napkins, charcoal, Uber deliveries, petrol to and from functions, bank charges, and platform fees.
That extra R120 000 does not sit inside the PAYE already deducted from the salary. PAYE on the job pays tax on the job. It does not magically cover side hustle income on top of it. Once the catering profit is added to the salary, the total tax picture changes, and provisional tax enters the room whether anyone likes it or not.
Many people only realise they have crossed the line after they receive the annual figures and the numbers look ugly. By then, the money has already been spent on groceries, uniforms, and the thing every South African household buys without discussing it, because the power has gone off again.
Provisional taxpayer is not a compliment
If your non-salary taxable income is more than R30 000 in a tax year, SARS puts you into provisional taxpayer territory. That sounds like a technical label, but in plain language it means you cannot just wait until the annual return and sort everything out in one shot.
You have to estimate your taxable income during the year and make payments along the way. For most people, that means two big dates to circle in red: 31 August and 28 February. Those are the normal provisional tax points. There can be a third top-up later if you need to correct an underpayment, but the first two are the ones that catch people out.
The uncomfortable bit is that the system is built around what you expect to owe, not what you feel like owing. If your estimate is too low and the final number is way off, SARS can charge penalties and interest. That is a very expensive way to discover that optimism is not an accounting method.
Keep the evidence, not the vibes
A side hustle lives or dies on records. If you want the tax bill to reflect reality, you need proof. Not a memory. Not a bank balance glance. Proof.
For a catering business, that means keeping every invoice and receipt for anything genuinely part of the trade. Ingredients. Packaging. Disposable cutlery. Delivery costs. Fuel for business trips. Stall fees if you sell at a market. Platform fees if an app takes a slice before the money reaches you. Bank charges, if they relate to the business. Even professional training can matter if it is tied to the work.
The rule is simple enough to sound irritating: the expense has to be wholly and exclusively for the business. That means business, not family groceries, not your own birthday braai, not the fancy pan you bought because you liked it and then decided to call it equipment. SARS is not interested in creative storytelling with a receipt.
People overpay tax without realising it because they track the cash coming in and ignore the money going out to make that cash. Every ignored expense inflates the profit. Every inflated profit pushes the tax higher.
A routine that does not need a spreadsheet shrine
You do not need to become an accountant to stay organised. You do need a routine you can actually keep on a tired Sunday night after rugby, laundry, and a load shedding panic.
Record every sale when it happens
Write down the date, the customer, what you sold, and how much was paid. Use a spreadsheet, an app, or a notebook that lives in the kitchen drawer. Capture the transaction while it still exists in your head.
Keep every business invoice
If you bought ingredients at Checkers, paid for packaging, or filled the tank for deliveries, keep the slip or the invoice. Take a photo straight away if paper receipts tend to vanish into handbags, lunchboxes, and car seats. A cleaner paper trail makes it easier to defend the figures later.
Reconcile once a month
At the end of each month, match what you recorded against your bank statement. If your side hustle shares a personal account, this step matters even more. It is the only way to see whether something was missed, duplicated, or quietly swallowed by the chaos of real life.
Move money for tax before you spend it
When the profit starts building, transfer a portion into a separate tax reserve. A practical range is about 20 to 30 percent of net profit, depending on your situation. The exact amount is not something to guess at casually, but setting money aside is what saves people from panic later. If the tax money sits in the same account as the braai meat and the school fees, it will disappear.
When to bring in a tax practitioner
A simple side hustle can stay simple for a while. Then life happens. Your salary, your catering income, a bit of rental money, maybe some investments, maybe a home office, maybe a car that is doing double duty—suddenly the maths is no longer cute.
That is when a registered tax practitioner earns their fee. Get proper help if your income sources are mixed, if your provisional tax estimates are difficult to pin down, if you are dealing with both personal and business spending, or if SARS starts asking questions. If your business turnover ever reaches R1 million in a 12-month period, VAT registration becomes compulsory, and that is not the moment to be winging it.
There is nothing glamorous about paying tax correctly. There is also nothing clever about waiting until SARS forces the issue. A profitable side hustle is a lovely thing. It should not become a surprise bill with a deadline attached.
