Provisional tax is a mechanism for pre-paying your income tax liability throughout the year rather than facing a large bill at assessment. Under the Fourth Schedule to the Income Tax Act, any natural person who earns income not subject to PAYE - such as freelance fees, rental income, or investment returns - must register as a provisional taxpayer with SARS (SARS: Provisional Tax, 2024). Registration is done on eFiling and takes effect before your first payment is due.
Key Takeaways
- You must register if you receive income not subject to PAYE, including freelance fees, rental income, and investment returns above the annual threshold.
- Registration is done on SARS eFiling at sars.gov.za.
- Two mandatory IRP6 payments per year: end of August (first period) and end of February (second period).
- Underestimating your income on the IRP6 triggers interest and can attract an underestimation penalty.
Who needs to register for provisional tax?
The Fourth Schedule to the Income Tax Act sets out who qualifies as a provisional taxpayer (legislation.gov.za). You’re required to register if any of the following apply:
- You receive income not subject to employees’ tax (PAYE) - such as freelance fees, business income, rental income, or investment returns
- Your non-PAYE income exceeds the threshold set by SARS for the tax year (confirm the current amount at sars.gov.za)
- You are a company or close corporation
- SARS has notified you that you are a provisional taxpayer
Employees whose only income is a salary subject to PAYE are exempt unless their other income exceeds the applicable threshold. If you’re a salaried employee who also earns rental income or freelance fees, check whether your total non-PAYE income requires registration.
How to register on SARS eFiling
Registration for provisional tax is handled through SARS eFiling. The process:
- Log in at www.sars.gov.za
- Navigate to My Profile > Tax Types > Registration
- Select provisional taxpayer registration and submit
- SARS updates your tax profile to include provisional tax
If you don’t yet have an eFiling account, register for one first. Alternatively, visit a SARS branch with your identity document - a branch agent can add provisional tax to your profile. SARS also allows registration via the MobiApp for individual taxpayers.
Registration should happen before your first provisional payment is due. Late registration doesn’t cancel the obligation - SARS can still assess you for underpayment plus interest from the date the liability arose.
The IRP6 provisional return
Once registered, you file provisional tax returns using the IRP6 form through eFiling. There are two compulsory submission periods per year and one optional top-up:
| Period | Due date (individuals) | Purpose |
|---|---|---|
| First period | End of August (6 months into the tax year) | First estimate and payment |
| Second period | End of February (end of the tax year) | Second estimate and payment |
| Third period (optional) | End of September (7 months after year-end) | Top-up payment to avoid interest shortfall |
The IRP6 requires an estimate of your total taxable income for the full year. SARS compares your provisional payments against the final tax calculated on your ITR12 annual return. If provisional payments exceed the final tax, SARS refunds the difference. If they fall short, the balance is due on assessment with interest.
Avoiding interest and penalties
The underestimation penalty applies if your taxable income on assessment exceeds your IRP6 estimate by more than a certain margin and you paid less than the required minimum. SARS charges interest on any underpayment from the date the payment was due (SARS: Interest and Penalties).
To manage this risk:
- Base your estimate on realistic projected income, not the minimum allowed
- Use the optional third payment in September to top up if your income came in higher than expected
- Keep invoices and bank records to support the income estimate you submit
Common mistakes
Not registering when leaving formal employment. PAYE exempts salaried employees from provisional tax. The moment you start freelancing or earn rental income above the threshold, the obligation begins - registration should follow immediately.
Underestimating to reduce the payment. SARS tracks the gap between your IRP6 estimate and your final taxable income. A deliberate underestimate can trigger both interest on the shortfall and an underestimation penalty.
Missing payment deadlines. Late payment attracts interest charged at the prescribed rate from the due date. The end of August and end of February deadlines are firm - submit and pay before those dates, not on them.
Treating provisional tax as a separate tax. Provisional payments are advance payments toward your annual income tax liability. They’re credited against your final ITR12 assessment, not treated as a separate tax obligation.
Frequently Asked Questions
When should I register as a provisional taxpayer in South Africa?
Register as soon as you start earning income not subject to PAYE - freelance fees, rental income, business income, or investment returns above the annual threshold. Don’t wait until year-end. Provisional payments fall due during the tax year (end of August and end of February), and late registration doesn’t remove the liability. SARS can assess you for underpayment with interest from when the obligation arose. Full details at sars.gov.za.
What happens if I underestimate my income on my IRP6 provisional return?
If your provisional tax payments are too low relative to your final taxable income, SARS charges interest on the shortfall from the payment due date. An underestimation penalty can also apply if the estimate was too low by more than the allowed margin. Base your estimate on realistic projected income rather than the minimum. The optional third payment in September is specifically designed to let you top up without incurring a penalty.
Is provisional tax a separate tax from income tax?
No. Provisional tax is an advance payment of your annual income tax liability. When you file your ITR12, your provisional payments are credited against the final tax calculated. If you paid more in provisional tax than the final liability, SARS refunds the excess. If you paid less, the balance is due on assessment, with interest from the original payment due dates.
What are the provisional tax payment deadlines for individual taxpayers?
For individuals, the first provisional payment is due at the end of August (six months into the tax year beginning 1 March), and the second is due at the end of February (end of the tax year). An optional third payment can be made by the end of September (seven months after year-end) to top up if your income exceeded your earlier estimate. SARS confirms exact dates at sars.gov.za.
Sources
- SARS: Provisional Tax - registration process, IRP6 deadlines, and current thresholds
- Income Tax Act 58 of 1962, Fourth Schedule - legislative definition of provisional taxpayer and payment obligations
- SARS eFiling - where to register and submit IRP6 returns
Related guides
- IRP6 Provisional Tax Worksheet for Freelancers
- Freelancer vs Contractor Tax in South Africa
- ITR12 Guide: How to Complete Your South African Tax Return
- Side Hustle Tax Obligations in South Africa: What You Need to Know
This guide is for general educational purposes. Verify current thresholds, deadlines, and registration requirements with SARS or a registered tax practitioner before acting.