South African Estate Duty Calculator 2026
Calculate SARS estate duty on a South African Muslim estate — including the primary abatement, spousal exemption, Mahr deduction, and the net estate available for Faraid distribution.
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Estate Duty & Islamic Estate Summary
Fill in estate details and click Calculate
Enter the Net Islamic Estate amount above into the Faraid Calculator
⚠️ Important Notes
- This calculator provides an estimate only — not a formal SARS assessment
- Nikah-only wives do not qualify for the section 4(q) spousal exemption
- Business interests may qualify for section 4(b) business relief — not modelled here
- Retirement fund death benefits are generally not part of the estate
- Always confirm with a qualified SA estate attorney and accountant
South African Estate Duty: What Every Muslim Needs to Know
Estate duty is a tax levied by the South African Revenue Service (SARS) on the estate of every South African resident who dies. It is governed by the Estate Duty Act (Act 45 of 1955) and applies before any distribution of the estate — including before Islamic Faraid distribution. For South African Muslims, understanding estate duty is essential because it directly reduces the net estate available for distribution to Islamic heirs.
Estate Duty Rates for 2026
| Dutiable Estate Value | Estate Duty Rate | Maximum Duty on This Band |
|---|---|---|
| R 0 — R 3,500,000 | 0% (primary abatement) | R 0 |
| R 3,500,001 — R 30,000,000 | 20% | R 5,300,000 |
| Above R 30,000,000 | 25% | Unlimited |
How the SARS Estate Duty Formula Works
The estate duty calculation follows a precise sequence:
- Start with the gross value of all assets in the estate at date of death
- Deduct section 4 allowable deductions — funeral costs, executor's fees, outstanding debts, liabilities
- Deduct the spousal bequest under section 4(q) — assets left to a surviving civil spouse are fully exempt
- Deduct qualifying charitable bequests — donations to approved section 18A organisations
- Apply the primary abatement — R3,500,000 (plus any rollover from a predeceased spouse under section 4A)
- The result is the dutiable amount — estate duty is calculated on this figure at 20% (up to R30M) or 25% (above R30M)
- The net Islamic estate = Gross estate − All deductions − Estate duty payable
The Spousal Exemption and Muslim Estates
The section 4(q) spousal exemption is one of the most powerful estate duty planning tools available in South Africa — but it comes with a critical limitation for Muslim families. Only assets bequeathed to a legally recognised civil spouse qualify for the exemption. A wife married by Nikah only (without a civil marriage registration) does not qualify.
Mahr as a Deductible Estate Liability
Deferred Mahr — the unpaid portion of the Islamic dowry owed by a husband to his wife — is a legally enforceable debt under South African law when properly documented. As a legitimate liability of the estate, it is deductible from the gross estate under section 4 of the Estate Duty Act before the dutiable amount is calculated. This calculator models Mahr as a deduction, reflecting its correct legal treatment.
For Mahr to be deductible, it must be documented — either in a signed Nikah contract, a separate written agreement, or a will. Undocumented verbal Mahr is difficult to enforce and may be challenged by SARS or other heirs.
The Portable Abatement (Section 4A)
If a spouse's estate was below R3.5 million and the full primary abatement was not used, the unused portion carries over to the surviving spouse's estate under section 4A. This means a surviving spouse could benefit from up to R7 million in abatements (R3.5M own + R3.5M rolled over) if the predeceased spouse had no dutiable estate.
Worked Example: R5 Million Muslim Estate
Deceased South African Muslim man, survived by one civil wife and two sons. Gross estate R5,000,000. Assets left to wife: R1,200,000.
| Step | Item | Amount |
|---|---|---|
| 1 | Gross estate | R 5,000,000 |
| 2 | Less: Funeral & admin costs | − R 50,000 |
| 2 | Less: Outstanding debts | − R 200,000 |
| 2 | Less: Deferred Mahr | − R 50,000 |
| 3 | Less: Spousal bequest s.4(q) | − R 1,200,000 |
| 5 | Less: Primary abatement | − R 3,500,000 |
| 6 | Dutiable amount | R 0 |
| 7 | Estate duty payable | R 0 |
| 8 | Net Islamic estate | R 4,700,000 |
In this case, the combined deductions (debts + Mahr + spousal bequest + abatement) bring the dutiable amount to zero — no estate duty is payable. The full net estate of R4,700,000 is available for Faraid distribution.
Frequently Asked Questions
After Estate Duty — Calculate Inheritance Distribution
Take the Net Islamic Estate from the calculator above and enter it into the Inheritance Calculator to distribute it correctly among your Islamic heirs.
Open Faraid Calculator →