To declare side hustle income to SARS, you report your extra earnings on your annual ITR12 return alongside your salary, deduct allowable business expenses, and register as a provisional taxpayer if the untaxed income is significant. Keeping records throughout the tax year makes the declaration accurate and defensible.
What counts as side hustle income that SARS wants to see?
SARS treats income as taxable regardless of whether it comes from a salary, a weekend gig, or an online platform. If money flows to you in exchange for goods, services, or effort, it generally forms part of your gross income and needs to be declared.
Common examples of side income we see include:
- Freelance writing, design, coding, or consulting
- Ride-hailing, delivery, and courier work
- Selling handmade goods or reselling products online
- Renting out a room, garden flat, or storage space
- Tutoring, coaching, and content creation
- Once-off or seasonal contract work
The label you give the activity does not change the tax position. A hobby that earns money is still generating income in the eyes of SARS. What matters is that the amounts are recorded and reported honestly.
How to declare side hustle income to SARS on your return
Side income is declared on the same ITR12 you use for your regular tax affairs. You add the earnings under the relevant local business, trade, or other income sections, then reduce that figure by the expenses you are entitled to claim. The net profit is added to your other income and taxed at your marginal rate.
If your only prior tax event was a salary with PAYE deducted by your employer, SARS may issue you an auto-assessment. That assessment will not know about your side hustle, which is why relying on it alone can be risky. We explain this in more detail in our piece on the hidden risks of relying solely on SARS auto-assessments.
For the 2026 tax year, covering income earned from 1 March 2025 to 28 February 2026, auto-assessments run from 1 to 12 July 2026 and filing opens on 13 July 2026. The non-provisional filing deadline is 23 October 2026. If you accept an auto-assessment that omits your side income, you have understated your tax, so it is worth editing or filing a full return instead.
Do you become a provisional taxpayer because of your side hustle?
Many people with side income become provisional taxpayers. Broadly, if you earn income that is not subject to PAYE, such as freelance fees or platform payments, SARS may expect you to pay tax in advance during the year rather than in one lump sum after assessment.
Provisional tax is not a separate or extra tax. It is a method of paying your estimated liability in instalments so you are not caught with a large bill at year end. You submit an IRP6 return and payment twice a year: the first period falls on the last business day of August, and the second on the last business day of February.
Provisional taxpayers also have a later annual return deadline. For the 2026 tax year, the provisional ITR12 deadline is 22 January 2027. If your side income is small and occasional, you may not meet the provisional threshold, but this is worth confirming with a professional because the position depends on your total picture.
What expenses can you claim against freelance and side income?
SARS generally allows you to deduct expenses incurred in producing that income, provided they are genuine, related to the activity, and supported by records. Deducting valid costs reduces the profit that gets taxed, so keeping receipts pays off.
Depending on your side hustle, expenses you may be able to claim include:
- Data, airtime, and internet used for the work
- Software subscriptions and platform commissions
- Materials, stock, and packaging
- Travel and vehicle costs linked to the activity
- A portion of home office costs where you meet the requirements
- Fees paid to accountants or advisers for that income
Personal and private expenses cannot be claimed, and mixed-use items need to be apportioned fairly. Our article on tax deductions you might be missing out on covers the areas people commonly overlook. If your side hustle grows into a registered venture, our overview on tax for South African entrepreneurs may be a useful next read.
How does SARS find out about undeclared side income?
SARS receives third-party data from banks and financial institutions, and increasingly from crypto exchanges. It also participates in international exchange-of-information frameworks, so cross-border payments and offshore platform earnings are not invisible. Regular deposits into your account can be matched against what you declare.
If you earn from crypto trading as a side activity, the reporting picture has its own quirks. Many platforms do not supply the tax certificates people expect, as we discuss in why IT3(b) and IT3(c) forms are not supplied by crypto platforms like AltCoinTrader. That places the record-keeping responsibility on you.
Undeclared income is one of the patterns that can draw attention, alongside other issues we list in common red flags that trigger SARS audits. Declaring correctly from the start is the calmer path.
What happens if you do not declare your side hustle income?
Failing to declare income you should have reported can lead to understatement, interest, and penalties. SARS applies administrative penalties for outstanding returns that recur monthly and scale with taxable income, so the cost grows the longer a return stays outstanding.
If you have already missed a deadline or realise a past return was incomplete, it is better to act than to wait. Our guide on what to do if you miss the tax deadline sets out practical steps. Voluntary correction is generally viewed more favourably than being caught later.
How should you keep records for a side hustle?
Good records turn a stressful filing season into a routine one. The tax year runs from 1 March to the end of February, so it helps to track earnings and expenses continuously rather than reconstructing them at the last minute.
A simple approach works well for most people:
- Use a separate bank account for side hustle money
- Save invoices and platform statements as you go
- Keep receipts for expenses in one folder, digital or physical
- Log the business portion of shared costs like data or travel
- Set aside a percentage of each payment for tax
Setting money aside as you earn softens the impact of provisional payments and the final assessment. If part of your saving strategy involves tax-efficient vehicles, our notes on tax-free savings accounts may be worth a look.
Frequently Asked Questions
Do I need to declare a small once-off side payment?
Income is generally taxable regardless of size, so a once-off payment for services or a sale forms part of your gross income and should be declared on your ITR12. Whether it changes your provisional status depends on your total untaxed income for the year. Small, occasional amounts still need to be recorded and reported accurately.
Can I claim home office costs for my freelance work?
You may qualify to claim a portion of home office costs if you meet SARS requirements, such as having a dedicated space used regularly for the work. The claim is apportioned according to the area and usage. Because the rules are specific and often queried, it is worth confirming your eligibility with a professional before claiming.
When do I have to submit provisional tax returns?
Provisional taxpayers submit an IRP6 in two periods each year: the first falls on the last business day of August and the second on the last business day of February. The annual ITR12 for provisional taxpayers has a later deadline; for the 2026 tax year that date is 22 January 2027. These payments are estimates of your overall liability.
Will SARS know about my crypto side income?
SARS increasingly receives data from crypto exchanges and participates in international information-sharing frameworks, so crypto earnings are not hidden from view. Many platforms do not issue the tax certificates people expect, which means you carry the record-keeping burden. Track your transactions carefully and declare gains and income according to how SARS generally treats them.
Should I accept my SARS auto-assessment if I have side income?
Generally no, because the auto-assessment is built from third-party data and may not include your side hustle earnings or the expenses you can claim. Accepting it as-is could mean understating your tax and facing penalties later. Review it, add your side income, and file a full return so the assessment reflects your actual position.
Get help with your side hustle tax
Side income adds moving parts to your tax affairs, from provisional registration to expense claims and crypto reporting. If you would like clarity on your specific circumstances, book a call with our team and we will walk through your situation together. You are also welcome to email info@chconsulting.co.za with any questions.