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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.

SARS Estate Duty Act formula R3.5M primary abatement applied Net Islamic estate calculated South Africa only — ZAR
Gross Estate Value
R
Primary residence, investment properties, land — at market value on date of death
R
Bank accounts, fixed deposits, unit trusts, shares, bonds
R
R
R
Note: life policies payable directly to named beneficiaries do not form part of the estate
Section 4 Deductions (Estate Duty Act)
R
Reasonable funeral expenses, executor's fees, conveyancing costs, and administration charges
R
All loans, credit cards, bond balances, and any other liabilities at date of death
R
Mahr is a legally enforceable debt — deductible as an outstanding liability before estate duty calculation
R
Charitable bequests to qualifying Section 18A organisations are deductible from dutiable estate
Section 4(q) Spousal Exemption
Assets bequeathed to a civil spouse are fully exempt from estate duty under section 4(q).
R
The full value bequeathed to the surviving civil spouse is exempt from estate duty — enter the amount being left to them
Under section 4A, if your predeceased spouse had an unused primary abatement, it transfers to this estate

All calculations are private and done in your browser only.

Estate Duty & Islamic Estate Summary

Fill in estate details and click Calculate

1
Gross Estate
2
Less: Debts, Mahr & Admin
3
Less: Spousal Bequest (s.4q)
4
Less: Charitable Bequests
5
Less: Primary Abatement
6
Dutiable Amount
7
Estate Duty Payable to SARS
Net Islamic Estate
Amount available for Islamic distribution after all deductions & estate duty
Effective duty rate
Estate duty saved by spousal exemption
Primary abatement used
Now Calculate Inheritance Distribution →

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.

Key principle for Muslim estate planning: Estate duty is paid from the gross estate before Islamic inheritance shares are calculated. The net estate after duty — not the gross estate — is the correct figure to enter into the Inheritance calculator.

Estate Duty Rates for 2026

Dutiable Estate ValueEstate Duty RateMaximum Duty on This Band
R 0 — R 3,500,0000% (primary abatement)R 0
R 3,500,001 — R 30,000,00020%R 5,300,000
Above R 30,000,00025%Unlimited

How the SARS Estate Duty Formula Works

The estate duty calculation follows a precise sequence:

  1. Start with the gross value of all assets in the estate at date of death
  2. Deduct section 4 allowable deductions — funeral costs, executor's fees, outstanding debts, liabilities
  3. Deduct the spousal bequest under section 4(q) — assets left to a surviving civil spouse are fully exempt
  4. Deduct qualifying charitable bequests — donations to approved section 18A organisations
  5. Apply the primary abatement — R3,500,000 (plus any rollover from a predeceased spouse under section 4A)
  6. The result is the dutiable amount — estate duty is calculated on this figure at 20% (up to R30M) or 25% (above R30M)
  7. 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.

Warning for polygamous Muslim families: If a husband has multiple wives — one civil and one or more Nikah only — the civil wife qualifies for the section 4(q) spousal exemption, but the Nikah wives do not. This asymmetry can create significant estate duty exposure and inheritance distribution complications. Professional legal advice from an Islamic estate planning specialist is essential.

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.

StepItemAmount
1Gross estateR 5,000,000
2Less: Funeral & admin costs− R 50,000
2Less: Outstanding debts− R 200,000
2Less: Deferred Mahr− R 50,000
3Less: Spousal bequest s.4(q)− R 1,200,000
5Less: Primary abatement− R 3,500,000
6Dutiable amountR 0
7Estate duty payableR 0
8Net Islamic estateR 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

Estate duty is 20% on the dutiable estate up to R30 million, and 25% above R30 million. The first R3.5 million is exempt via the primary abatement. Assets bequeathed to a surviving civil spouse are fully exempt under section 4(q) — there is no cap on this exemption.
The primary abatement is R3,500,000. Every South African estate receives this exemption — the first R3.5 million of the dutiable estate (after other deductions) is completely exempt from estate duty. Under section 4A, unused abatement from a predeceased spouse can be carried over, potentially doubling the effective abatement to R7 million.
Yes — under section 4(q), assets bequeathed to a surviving spouse are fully exempt from estate duty with no monetary limit. However, only a legally registered civil marriage qualifies. A Nikah-only wife does not qualify for this exemption under current South African law. This is a significant planning gap for Muslim families with Islamic-only marriages.
Estate duty is paid by the executor from estate assets before any distribution to heirs. It must reach SARS within one year of date of death or within 30 days of assessment. Interest accrues on late payments. Because duty is paid before Islamic distribution, the net estate after duty is the correct amount to use when calculating inheritance shares.
Yes — under section 4A, if your predeceased spouse's estate was below R3.5 million and not all of their primary abatement was used, the unused portion transfers to your estate on your death. This can effectively give your estate up to R7 million in abatements — potentially eliminating estate duty entirely on estates below that threshold.

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 →