Bonus Tax Calculator South Africa 2026
Calculate exactly how much tax you pay on your 13th cheque or performance bonus — using the official SARS 2026/2027 annualisation method. See your net bonus instantly.
That moment when your bonus hits your payslip — and it is far less than expected. This calculator uses the official SARS method to show you exactly how your bonus is taxed, what you will actually receive, and your effective bonus tax rate.
Enter Your Details
Enter your monthly salary and bonus amount above to calculate your bonus tax.
How Bonuses Are Taxed in South Africa
SARS does not tax bonuses at a separate flat rate. Instead, your employer uses the annualisation method — also called the balance of remuneration method. Your bonus is added to your annual income and the total tax is recalculated. The difference between your tax with and without the bonus is the PAYE deducted from your bonus.
This means your bonus is effectively taxed at your marginal tax rate — the rate that applies to the highest portion of your income. If your annual salary puts you in the 26% bracket, most of your bonus will be taxed at 26%, with any portion that pushes you into the 31% bracket taxed at 31%.
The SARS Annualisation Method — Step by Step
Worked Example — R25,000 salary + R25,000 bonus
| Item | Amount |
|---|---|
| Annual salary (R25,000 × 12) | R 300,000 |
| Annual tax on salary alone | R 40,572 |
| Annual salary + bonus (R300,000 + R25,000) | R 325,000 |
| Annual tax on combined income | R 47,072 |
| Bonus tax (R47,072 − R40,572) | R 6,500 |
| Gross bonus | R 25,000 |
| Net bonus (take-home) | R 18,500 |
| Effective bonus tax rate | 26% |
Will You Get a Tax Refund on Your Bonus?
Possibly — and this is where many South Africans leave money on the table. The annualisation method projects your bonus-month income across the full year. If you received the bonus in one month but your regular salary is lower the rest of the year, SARS may have over-withheld.
When you submit your annual tax return, SARS reconciles your total actual income with your total tax paid. If more was withheld than owed, you receive a refund. Always submit your tax return — many salaried employees skip it, not realising they are owed money back.
Frequently Asked Questions
How is a bonus taxed in South Africa?
Can I reduce the tax on my bonus?
Is a 13th cheque the same as a bonus for tax purposes?
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