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

Immovable property (market value)

Primary residence, investment properties, land — at market value on date of death

Cash, savings & investments

Bank accounts, fixed deposits, unit trusts, shares, bonds

Business interests & assets

Vehicles, jewellery & movable assets

Other assets (retirement annuities, life assurance in estate, etc.)

Note: life policies payable directly to named beneficiaries do not form part of the estate

Section 4 Deductions (Estate Duty Act)

Funeral & administration costs

Reasonable funeral expenses, executor's fees, conveyancing costs, and administration charges

Outstanding debts & liabilities

All loans, credit cards, bond balances, and any other liabilities at date of death

Deferred Mahr owed to wife/wives (Islamic)

Mahr is a legally enforceable debt — deductible as an outstanding liability before estate duty calculation

Wasiyyah (Islamic bequest) (max 1/3 of net estate)

Charitable bequests to qualifying Section 18A organisations are deductible from dutiable estate

Section 4(q) Spousal Exemption

Is there a surviving spouse with a civil marriage?

Assets bequeathed to a civil spouse are fully exempt from estate duty under section 4(q).

Value of assets bequeathed to civil spouse

The full value bequeathed to the surviving civil spouse is exempt from estate duty — enter the amount being left to them

Unused abatement rollover from predeceased spouse?

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

Gross Estate

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Less: Debts, Mahr & Admin

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Less: Spousal Bequest (s.4q)

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Less: Charitable Bequests

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Less: Primary Abatement

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Dutiable Amount

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Estate Duty Payable to SARS

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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

Quick Answer

This calculator works out how much South African estate duty is payable on a Muslim estate, then gives you the net Islamic estate to use in the Faraid Inheritance Calculator. Enter your gross estate value, section 4 deductions (including deferred Mahr and Wasiyyah), and any spousal bequest — it applies the R3.5 million primary abatement and the 20%/25% duty rates automatically.

How to Use This Estate Duty Calculator

Start with your gross estate value: immovable property, cash and investments, business interests, vehicles and other assets, all at market value on date of death.

Next, enter the Section 4 deductions the Estate Duty Act allows — funeral and administration costs, outstanding debts, deferred Mahr owed to your wife or wives, and any Wasiyyah bequest to non-heirs.

If you have a surviving spouse, confirm whether the marriage was civil or Nikah only — only a civil spouse qualifies for the full section 4(q) exemption — and enter the value bequeathed to them. If a predeceased spouse left unused primary abatement, add the rollover amount under section 4A.

The calculator applies the R3.5 million primary abatement automatically, then the 20%/25% duty rates, and shows you the exact net Islamic estate to carry across to the Inheritance Calculator.

Also Useful From FaraidHub

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 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 SA Estate Duty is Calculated

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

Why Estate Duty Matters in Islamic Inheritance

Many Muslims assume the percentages prescribed in the Quran apply to the total value of the deceased's estate. That's not how Islamic inheritance actually works.

Before any heir receives a share, Islamic law requires several obligations to be settled first — funeral expenses, outstanding debts, valid Wasiyyah bequests (within the one-third limit), and any taxes or legal liabilities payable by the estate, including estate duty.

Only once those obligations are discharged is the remaining estate divided among the heirs according to Faraid. The net estate — not the gross estate — is always the correct figure to use for an Islamic inheritance calculation.

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.

Deferred Mahr as an 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.

To be deductible, the deferred Mahr should be clearly recorded in:

The Nikah contract
A separate written agreement
The deceased's Islamic Will

Undocumented verbal agreements are significantly more difficult to prove 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.

This provision can substantially reduce estate duty for married couples and should be considered as part of long-term estate planning.

Worked Example: R5 Million Muslim Estate

A South African Muslim man dies leaving:

Gross estate: R5,000,000
One surviving civil spouse
Two sons
Assets worth R1,200,000 bequeathed to his wife

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.

Understanding how estate duty interacts with Faraid lets Muslim families plan more effectively, reduce unnecessary tax where it's legally possible, and make sure the estate that reaches their heirs reflects both South African law and Islamic inheritance principles.

Frequently Asked Questions About SA Estate Duty

What is the estate duty rate in South Africa in 2026?

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.

What is the primary abatement for South African estate duty?

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.

Are assets left to a spouse exempt from SA estate duty?

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.

When is SA estate duty paid and by whom?

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.

Can the unused primary abatement of a deceased spouse be transferred?

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 →