Who Qualifies as a Provisional Taxpayer in South Africa?
SARS Provisional Tax (IRP6) – Under the Income Tax Act, provisional taxpayer status applies automatically to specific business structures and income earners:
Provisional tax is not a separate tax from income tax in South Africa; it is an advance payment mechanism designed to spread a business’s or individual’s annual income tax liability across the tax year. Filing an accurate IRP6 return prevents unexpected end-of-year cash flow shocks and keeps your business fully compliant with the South African Revenue Service (SARS).
- Companies & Close Corporations (CCs): All registered private companies, CCs, and corporate entities.
- Sole Proprietors & Freelancers: Individuals who earn income from a trade, independent contracting, or freelance work outside of a standard PAYE salary.
- Multi-Income Individuals: Any individual earning non-remuneration income (such as rental properties, interest, or dividends) exceeding R30,000 in taxable income for the year.
- Trusts: All active trusts registered with SARS.
Important SARS Provisional Tax Deadlines
Provisional tax for individuals and entities with a February tax year-end is split into two mandatory periods, with an optional third payment:
| Period | Due Date | Purpose |
| 1st Period (IRP6.01) | 31 August | 50% of the estimated annual tax obligation (6 months into tax year). |
| 2nd Period (IRP6.02) | 28/29 February | Final estimated balance for the full tax year. |
| 3rd Period (Top-Up) | 30 September | Voluntary top-up payment to stop SARS from levying interest on underpayments. |
How to Calculate Your IRP6 Estimate
Calculating your provisional tax obligation requires projecting your net taxable income for the current financial year.
- Calculate Expected Gross Revenue: Aggregate all forecasted income streams for the full 12-month period.
- Deduct Allowable Business Expenses: Subtract operational costs, cost of sales, software subscriptions, office rental, and allowable home office expenses.
- Apply Tax Credits & Exemptions: Factor in PAYE already withheld (if applicable), medical scheme fees (Section 6A/6B), and approved retirement annuity contributions.
- Compare Against the Safe-Harbour “Basic Amount”: Refer to your latest assessed taxable income on eFiling (ITA34). If your last assessment is more than 18 months old, the basic amount must generally be escalated by 8% per year.
Understanding SARS Penalties and Interest
SARS strictly enforces accuracy and deadlines on provisional returns.
Late Payment Penalty (10%)
If your 1st or 2nd provisional tax payment is rendered after the deadline, SARS levies an automatic 10% penalty on the unpaid amount, plus prescribed interest per annum.
Paragraph 20 Under-estimation Penalty (20%)
The second provisional tax return (February) carries heavy under-estimation penalties if your forecasted income falls significantly short of your actual taxable income assessed later on your annual return:
- Taxable Income of R1 Million or Less: Your second estimate must equal at least 90% of your actual taxable income on assessment OR equal/exceed your “basic amount”.
- Taxable Income Over R1 Million: Your second estimate must be at least 80% of actual taxable income. The basic amount safe-harbour does not protect taxpayers in this bracket.
- Late Filing Penalty Risk: Submitting an IRP6 late results in SARS classifying the return as a “nil” (R0) estimate, which automatically triggers a 20% under-estimation penalty upon final assessment.
Practical Ways SMEs Can Avoid Provisional Tax Pitfalls
Keeping cloud accounting software (like Xero or QuickBooks) up to date monthly gives real-time visibility into net profit, eliminating year-end guesswork. Reconciling bank statements and tracking deductible expenses monthly ensures your IRP6 calculation reflects realistic business performance rather than an arbitrary estimate.
Partnering with a registered tax practitioner ensures your basic amount calculations, deductions, and eFiling submissions are aligned with current tax legislation, protecting your cash flow from unnecessary SARS penalties.