Is there a special tax rate for bonuses?

No. There is no separate "bonus tax" in South Africa. Your bonus is added to your normal income for the year and taxed using the same SARS tables — it just lands in the higher, marginal end of your rates, which is why it feels heavily taxed.

Why was so much tax taken off my bonus payslip?

Payroll annualises your income: in the bonus month it recalculates the year including the bonus, and the extra PAYE for the whole amount is withheld in that single month. Over the full year you pay exactly the table amount — no more.

Is a 13th cheque taxed differently from a performance bonus?

No — both are remuneration and taxed identically. The difference is only contractual: a 13th cheque is a guaranteed extra month of salary, a performance bonus is discretionary.

Can I reduce the tax on my bonus?

The main legitimate lever is retirement contributions: putting part of the bonus into your RA or pension (within the 27.5%/R350,000 limit) deducts it from taxable income, so you save tax at the same marginal rate the bonus would have been taxed at. Some employers let you do this via payroll before the bonus is paid.

What if my employer taxed my bonus at a flat rate?

Some payrolls withhold at a flat or higher directive rate to be safe. Any over-deduction comes back as a refund when you file your tax return — it is not lost.

Bonus tax calculator

There's no special "bonus tax" — your 13th cheque is just income, taxed at your marginal rate. See what SARS takes and what you actually bank.

Gross monthly salary

Bonus / 13th cheque (before tax)

Bonus in your pocket

R 18 500,00

Gross bonusR 25 000

PAYE on the bonus (26.0% effective)-R 6 500,00

You keep 74% of it.

Why the December payslip stings

It stacks on top. Your salary already fills the lower brackets, so the bonus is taxed entirely in your top bracket — currently 26% on the last rand.
The tax hits in one month. Payroll withholds the whole year's extra PAYE in the bonus month, which makes the deduction look enormous. Across the year you pay exactly the table amount.
The one real lever: routing part of the bonus into your RA or pension deducts it from taxable income — you save tax at the same 26% the bonus would have been taxed at. Run the RA numbers →

Educational only — not financial advice

FirstCheque gives general information and estimates based on published SARS tables. It doesn't know your full situation and isn't advice under the FAIS Act. Confirm figures with SARS, your payroll department, or a registered financial adviser.

Bonus tax calculator

Common questions