South Africa’s inheritance tax is Estate Duty, charged on the dutiable value of a deceased estate after deductions and a generous abatement. This calculator applies the R3.5 million abatement and the tiered 20% / 25% rates so you can estimate the duty before the estate is wound up.
How it works
The duty is computed on the dutiable amount, with two marginal rate bands:
netValue = grossEstate − deductions − spouseBequests
dutiableAmount = max(0, netValue − R3,500,000 abatement)
duty = 20% × min(dutiableAmount, R30,000,000)
+ 25% × max(0, dutiableAmount − R30,000,000)
Because the abatement and spouse bequests come off first, modest estates frequently fall to a zero dutiable amount and owe no Estate Duty at all.
Example and tips
A R10 million net estate with no spouse bequest has the R3.5 million abatement deducted, leaving a R6.5 million dutiable amount. All of it is within the R30 million band, so the duty is 20% × R6,500,000 = R1,300,000. Leaving assets to a surviving spouse defers duty entirely and can preserve a rolled-over abatement of up to R7 million for the second estate — a key planning lever. Remember death can also trigger Capital Gains Tax, which this tool does not include.