Antenuptial Contract with Accrual in South Africa | Meaning & How It Works

An antenuptial contract with accrual is an agreement signed before marriage that keeps the spouses’ estates separate during the marriage but shares the growth each estate achieved when the marriage ends. Each spouse keeps their own assets and debts, and at divorce or death the spouse whose estate grew less claims half of the difference in growth from the other.

The accrual system is governed by the Matrimonial Property Act 88 of 1984. It is the most common marital regime in South Africa for couples who want financial independence with a fair sharing of the marriage’s prosperity. This guide explains how it works, how the split is calculated and where couples go wrong.

How the Accrual System Works

Accrual means growth. At the start of the marriage, each spouse records a commencement value, the net value of their estate on the wedding day, in the antenuptial contract. The marriage then runs as out of community of property. Each spouse’s salary, business, investments and debts stay in their own name, and neither can be held liable for the other’s creditors.

When the marriage dissolves by divorce or death, each estate’s accrual is calculated as the end value, adjusted for inflation on the commencement value, less excluded assets and liabilities. The spouse with the smaller accrual has a claim against the other for half the difference. The assets themselves are not joined or halved, only the growth.

A Worked Example

Item	Spouse A	Spouse B
Commencement value at marriage	R200 000	R50 000
Estate value at divorce	R1 200 000	R900 000
Inflation-adjusted commencement value	R300 000	R100 000
Accrual (end value minus adjusted start)	R900 000	R800 000
Accrual claim	Pays R50 000 to B	Claims R50 000 from A

The difference between the two accruals is R100 000, and the spouse with the smaller accrual claims half of it. Inflation protection stops a spouse being credited with pre marriage wealth that merely kept pace with prices.

What Can Be Excluded From Accrual

The contract can list assets excluded from the accrual calculation, such as an inherited farm, a family business or shares. Inheritances and donations received during the marriage are excluded automatically unless the contract provides otherwise, and the contract can also exclude inheritance growth specifically. Deductible liabilities reduce the accrual, so the calculation is net, not gross.

Exclusions must be written clearly. A vague reference to “my business interests” invites litigation, because the courts must decide what the parties intended years after signature.

Signing and Registering the Contract

An antenuptial contract must be signed before a notary public before the marriage is solemnised. After signature, the notary registers it at the Deeds Office, and it must be registered within three months of execution. A couple married without a valid antenuptial contract is automatically married in community of property, whatever their intention was.

Spouses who married in community of property or without accrual can change the regime later, but only by a High Court application under section 21(1) of the Matrimonial Property Act, with notice to creditors and the Registrar of Deeds. It cannot be done by a private agreement at the kitchen table.

Accrual Compared With the Other Marital Regimes

Feature	In community	ANC without accrual	ANC with accrual
Joint estate	Yes, one estate	No	No
Liability for spouse’s debts	Yes	No	No
Share in growth at divorce	Everything splits 50/50	No sharing	Growth shared 50/50
Protection of pre marriage assets	No	Yes	Yes

Common Mistakes to Avoid

• Signing on the wedding morning. The contract must be executed before the marriage, and rushed values and exclusions are often wrong.
• Leaving commencement values blank. The law then treats the start value as nil, which inflates one spouse’s accrual claim.
• Forgetting to register the contract. An unregistered contract still governs the parties, but proving its terms against third parties and heirs becomes harder.
• Assuming the default is without accrual. An antenuptial contract that is silent includes accrual automatically unless it expressly excludes it.
• Vague exclusion clauses. Name the assets, their values and whether their growth is excluded too.

Frequently Asked Questions

What is an antenuptial contract with accrual in South Africa?

It is a contract signed before marriage before a notary that keeps the spouses’ estates separate during the marriage but shares the growth each estate achieved when the marriage ends. At divorce or death, the spouse whose estate grew less claims half of the difference in growth from the other spouse.

Is accrual automatic in an antenuptial contract?

Yes. Under section 6 of the Matrimonial Property Act, an antenuptial contract that excludes community of property but does not expressly exclude the accrual system includes accrual automatically. Couples who want no sharing must say so clearly in the contract.

How is the accrual calculated at divorce?

Each estate’s growth is its end value minus its commencement value adjusted for inflation, after deducting excluded assets. The spouse with the smaller growth then has a claim for half the difference between the two growths, so the marriage’s prosperity is shared while pre marriage wealth is protected.

Are inheritances included in the accrual?

No. Inheritances and donations received during the marriage are excluded from the accrual calculation unless the antenuptial contract expressly includes them. The contract can also list specific assets, such as a business or property, whose value and growth are excluded.

Can an antenuptial contract be signed after the wedding?

Not as an antenuptial contract. It must be executed before the marriage is solemnised. A married couple can change their marital regime only by a High Court application under section 21(1) of the Matrimonial Property Act, with notice to creditors.

Disclaimer. This article is general information, not legal advice for a specific marriage or contract. Confirm registration and drafting requirements with a notary or admitted attorney before signing.