If you run a small or medium business in South Africa, provisional tax is one of the obligations that catches many SME owners off guard — often resulting in unnecessary penalties and interest from SARS. This guide breaks down exactly what provisional tax is, who it applies to, and how to stay compliant in 2026.
What Is Provisional Tax?
Provisional tax is not a separate tax — it is simply a method SARS uses to collect income tax during the tax year rather than all at once at year-end. Instead of paying everything when you submit your annual tax return, you make two (sometimes three) payments throughout the year based on your estimated taxable income.
Think of it as paying your tax in instalments. The idea is straightforward: SARS does not want to wait until the end of the tax year to receive tax on income you have already earned.
Who Has to Pay Provisional Tax?
You are a provisional taxpayer if you earn income that is not subject to employees’ tax (PAYE). This typically includes:
- Business owners and sole proprietors earning income from their business
- Company directors who receive income other than a salary
- Freelancers and consultants billing clients directly
- Landlords earning rental income
- Individuals with investment income, interest, or foreign income
If you are employed and your employer deducts PAYE, you are generally exempt — unless you also earn additional income outside your employment.
The 2026 Provisional Tax Deadlines
Missing these dates results in automatic penalties and interest, so mark them in your calendar:
First period (6 months into your tax year)
For most individuals and businesses on a February year-end, the first provisional tax payment is due 31 August 2026. Your estimate must be based on at least 90% of your actual taxable income for the full year.
Second period (at year-end)
The second payment is due 28 February 2026 for February year-end taxpayers. This is your final estimate for the full year.
Third payment (optional top-up)
A voluntary third payment can be made within six months after your year-end to reduce any shortfall and avoid the 20% underestimation penalty.
The Underestimation Penalty — The One to Watch
SARS applies a 20% penalty if your estimate is too low relative to your actual income. Specifically, if your taxable income for the year is more than R1 million and your second period estimate is less than 80% of your actual liability, SARS will charge the penalty automatically.
For businesses earning under R1 million, you must estimate at least 90% of your actual taxable income to avoid penalties.
This is where many SME owners get into trouble — underestimating income to reduce their provisional payments, only to face a large penalty at assessment.
How Is Provisional Tax Calculated?
The basic formula is:
- Estimate your total taxable income for the full tax year
- Apply the income tax tables to calculate the tax due
- Subtract any rebates (primary, secondary, or tertiary)
- Subtract PAYE already paid (if applicable)
- Divide by two for each of the two provisional payments
Your CA can help you build an accurate estimate based on your year-to-date financials, projected income, and allowable deductions — ensuring you pay enough to avoid penalties without unnecessarily overpaying.
Common Mistakes SME Owners Make
Ignoring provisional tax entirely. Some business owners are not aware they are provisional taxpayers. If you earn income outside of PAYE, you almost certainly need to register and make payments.
Waiting for your accountant to chase you. Provisional tax submissions are your responsibility. Your accountant can prepare and submit on your behalf, but the obligation sits with you.
Underestimating to preserve cash flow. While it is tempting to estimate low, the 20% penalty often costs more than the interest you would have earned on the withheld funds.
Not keeping adequate records. Your estimate must be defensible. Up-to-date bookkeeping through the year makes accurate provisional tax estimates far easier and reduces your risk.
How IE Advisory Can Help
At IE Advisory, we manage the full provisional tax process for our SME clients — from registration as a provisional taxpayer with SARS, to preparing defensible estimates based on your actual financials, to submitting on eFiling on your behalf.
We serve SMEs in Durban, Johannesburg, and nationwide, and we make it our business to ensure you never miss a deadline or pay a preventable penalty.
If you are unsure whether you need to register for provisional tax, or if your current estimates are putting you at risk, book a free consultation with us today.
Irshaad Essa CA(SA)
IE Advisory | Chartered Accountant & SAICA Member
📍 Berea, Durban | Serving clients nationwide
📞 031 207 8692 | info@ieadvisory.co.za
🌐 www.ieadvisory.co.za
Book a free consultation at ieadvisory.co.za/book-now