Is a Prenuptial Agreement the Same as an Antenuptial Contract (ANC)?

A prenuptial agreement and an antenuptial contract (ANC) are the same legal instrument in South African law. “Antenuptial contract” is the formal term used in the Matrimonial Property Act 88 of 1984, and “prenuptial agreement” is the colloquial English-language equivalent that most couples actually use in conversation. Both names describe a written contract signed by both spouses-to-be before the marriage, witnessed by a notary public, and registered at the Deeds Office within three months of the date of marriage (under section 86 of the Deeds Registries Act 47 of 1937) to bind third parties. Once executed and registered, the contract sets the matrimonial property regime — out of community of property, either with or without the accrual system — rather than the default marriage in community of property that applies when no ANC is signed.

The Short Answer: Yes, They Are the Same Thing

In South African law, “prenuptial agreement” and “antenuptial contract” (commonly abbreviated to ANC) refer to one and the same legal instrument. The two terms describe the same document, the same legal effect, and the same execution process — only the language differs.

• “Antenuptial contract” is the formal legal term. It derives from Latin: ante means “before” and nuptialis means “of marriage,” so the term literally means “a contract entered into before marriage.”
• “Prenuptial agreement” is the colloquial English equivalent. It is more common in everyday speech and in international or generic legal writing.

Whichever term is used, the binding document is the same. If you walk into a South African attorney’s office and say “prenup,” the firm knows exactly what you mean.

Why South African Law Uses “Antenuptial Contract”

South African family law sits on a Roman-Dutch legal foundation, and the terminology reflects that heritage. The term “antenuptial” — used throughout the formal legal framework — comes from that Roman-Dutch tradition rather than from English common law.

• The Matrimonial Property Act 88 of 1984, the controlling statute for marital property regimes in South Africa, uses “antenuptial contract” throughout.
• The Deeds Registries Act 47 of 1937 (section 86) likewise refers to antenuptial contracts when setting the registration requirements that bind third parties.
• The notary public, the Master of the High Court, and the Deeds Office all use “antenuptial contract” (or the abbreviation “ANC”) in their official forms and correspondence.
• Practising attorneys, including those at this firm, default to “antenuptial contract” or “ANC” in formal correspondence, pleadings, and notarial protocols.

For practical purposes, both terms are understood by every notary and family law practitioner in the country — but if you want to sound fluent in the formal framework, “antenuptial contract” or “ANC” is the correct register.

What the Contract Actually Does

An antenuptial contract determines the matrimonial property regime that will apply to the marriage. Without an ANC, the default position under the Matrimonial Property Act 88 of 1984 is marriage in community of property — both spouses’ estates merge into a single joint estate from the date of marriage.

With an ANC, the marriage can be out of community of property, which means each spouse retains a separate estate before, during, and after the marriage. The contract may also expressly include or exclude the accrual system (explained in the next section).

The contract also governs financial relations during the marriage and the devolution of estates on the death of either spouse, and cannot override public policy or the essential obligations of marriage.

The Two Main Types of ANC

Type	What it means	Best suited to
Out of community of property, WITHOUT accrual	Each spouse keeps their own estate completely separate at all times — during the marriage and on its dissolution by death or divorce. There is no sharing of growth.	Couples with significant pre-marital assets, business owners, those expecting inheritances, or anyone who wants complete financial separation throughout the marriage.
Out of community of property, WITH accrual	Each spouse keeps their own separate estate during the marriage, but on its dissolution by death or divorce the growth in each estate during the marriage is shared equally (50/50), subject to the “starting value” recorded in the contract.	Couples who want separation during the marriage but a fair sharing of what was built together during it.

The accrual system applies only if it is expressly included in the ANC. Without that express inclusion, the marriage is out of community of property without accrual. Where the accrual system is included, each spouse must disclose the value of their estate at the date of marriage — the “starting value” — because that figure is later deducted before the growth is split. Getting the starting values accurately recorded at the time of signing is the single most common source of later disputes on divorce, so the original valuations matter.

The Legal Requirements for a Valid ANC

For an antenuptial contract to be valid in South Africa, every one of the following must be in place:

1. In writing. Oral agreements, informal letters, and email exchanges do not count.
2. Signed by both spouses-to-be before the marriage takes place.
3. Attested by a notary public. The notary must explain the effect of the contract to both parties (including the consequences of including or excluding the accrual system), confirm that each party understands it, and record the explanation in the notarial protocol.
4. Registered at the Deeds Office within three months of the date of the marriage, against the marriage certificate, to bind third parties (section 86 of the Deeds Registries Act 47 of 1937).

If the contract is not registered within the three-month window, it still binds the spouses between themselves but does not bind third parties — most importantly, it does not protect against the creditors of either spouse.

Common Misconceptions

• “A prenup is a different or weaker document than an ANC.” No — they are the same document with different names. The legal effect is identical.
• “Signing an ANC means you don’t trust your partner.” The opposite is more accurate. Most couples sign one precisely because they are committed and want clarity from the outset — particularly where one or both have pre-marital assets, businesses, or inheritance expectations.
• “ANCs are only for wealthy people.” Couples at any income level execute ANCs, often for reasons unrelated to wealth: family businesses, second marriages, or estate-planning considerations.
• “You can sign an ANC after the marriage.” Only by way of a postnuptial contract, which requires a High Court application in specific circumstances — a much heavier and more expensive process than signing an ANC before the wedding.
• “An ANC only matters on divorce.” It also governs financial relations during the marriage and the devolution of estates on death.
• “An ANC can be oral or informal.” No — it must be in writing, signed, and notarially executed.

The Family Law practice at Burger Huyser Attorneys regularly drafts and notarial-executes antenuptial contracts at the firm’s Bedfordview and Pretoria branches, both of which have notary capability in-house — which is the fastest way to clear up misconceptions like these in a single consultation.

When You Should Consider an ANC

An ANC is worth considering if any of the following apply to you or your partner:

• One or both of you own a business, a professional practice, or a share in a family business at the time of marriage.
• One or both of you have significant pre-marital assets or expected inheritances.
• One or both of you have children from a prior relationship whose financial interests need to be ring-fenced.
• One or both of you have beneficiaries from a previous marriage.
• One or both of you have debt you do not want to merge into a joint estate.
• You want to make the accrual system explicit (including or excluding it) rather than relying on the default position.
• Either spouse is older, remarried, or has a complex estate-planning picture.

Burger Huyser Attorneys’ Family Law team — under Director Anna-Mi Nel, who heads the Family Law Department and co-directs the Sandton branch — handles antenuptial contract drafting and execution across the firm’s Gauteng branches, with notarial capability in-house at Bedfordview (notaries Natasha van Deventer and Amanda le Roux) and at the Pretoria office (notary Chanté Marais).

What Happens If You Don’t Sign an ANC

If you marry without signing an antenuptial contract, the marriage is automatically in community of property under the default rule in the Matrimonial Property Act 88 of 1984. The practical consequences are significant:

• All assets and liabilities of both spouses — present and future — merge into one joint estate from the date of marriage.
• Each spouse generally needs the other’s written consent to deal with most assets in the joint estate.
• On divorce, the joint estate is split 50/50, regardless of who originally contributed what or whose effort built the asset.
• On death, the deceased spouse’s share of the joint estate devolves according to their will or, in the absence of a will, under intestate succession.

The Practical Steps to Sign an ANC

1. Both parties agree on the regime — out of community of property with or without the accrual system, and (if accrual applies) the starting values of each estate.
2. The contract is drafted by the attorney and signed by both parties before the wedding date.
3. Both parties attend before a notary public, who explains the effect of the contract and the consequences of including or excluding the accrual system, and certifies the explanation in the notarial protocol.
4. The notary lodges the contract for registration at the Deeds Office against the marriage certificate after the marriage has taken place.
5. Registration must happen within three months of the date of marriage (section 86 of the Deeds Registries Act 47 of 1937).
6. The Deeds Office issues a confirmation of registration, and the contract is then searchable against the marriage register.

Local Filing Layer — Where Registration Happens in Gauteng

Frequently Asked Questions

Is a prenuptial agreement the same as an antenuptial contract?

Yes — in South African law they are the same legal instrument. “Antenuptial contract” is the formal term used in the Matrimonial Property Act 88 of 1984, and “prenuptial agreement” is the colloquial English equivalent. Both must be in writing, signed by both spouses-to-be before the marriage, witnessed by a notary public, and registered at the Deeds Office within three months of the marriage under section 86 of the Deeds Registries Act 47 of 1937.

Which term should I use when speaking to an attorney or notary?

Either is understood, but South African practitioners, notaries, and the Deeds Office default to “antenuptial contract” or the abbreviation “ANC.” Using that term when contacting a law firm signals that you already know the formal name, and the firm will know exactly what document you need.

Does a prenuptial agreement have to be signed before the marriage?

Yes. An antenuptial contract must be signed by both parties and executed before a notary public before the marriage takes place. If the marriage has already occurred, a postnuptial contract can only be authorised by the High Court on application, in limited circumstances — it is a much heavier and more expensive process.

Does an ANC have to be registered at the Deeds Office?

It must be registered within three months of the date of the marriage under section 86 of the Deeds Registries Act 47 of 1937 for the contract to bind third parties (such as creditors of either spouse). Between the spouses themselves, the contract is binding once it has been signed and notarially executed, regardless of registration — but registration matters for protection against outside claims.

What is the difference between an ANC with accrual and an ANC without accrual?

An ANC without accrual keeps each spouse’s estate completely separate during and after the marriage. An ANC with accrual keeps each estate separate during the marriage, but on its dissolution by death or divorce, the growth in each estate during the marriage is shared equally between the spouses (subject to each spouse’s “starting value” recorded in the contract).

Can an oral agreement or a letter count as a prenup?

No. An antenuptial contract is only valid if it is in writing, signed by both parties, and executed before a notary public. An informal letter, an email, or an oral agreement has no legal effect and cannot override the default matrimonial property regime.

Does signing an ANC mean we are planning for divorce?

No — most couples sign an ANC precisely because they are committed to the marriage and want clarity about how their finances work during it, particularly where one or both have pre-marital assets, businesses, or inheritance expectations. The contract also governs what happens on death, which is why estate planners commonly recommend one.

How long does it take to put an ANC in place?

Drafting, signing, and notarial execution can usually be completed within two to four weeks before the wedding, provided both parties are in the country and available for the notary appointment. Registration at the Deeds Office after the marriage adds a few weeks of processing time on top of that. Couples with a wedding approaching should start the process at least a month in advance.

If you and your partner are considering an antenuptial contract — whether you call it a prenup or an ANC — Burger Huyser Attorneys’ Family Law team can draft, explain, and attend to the notarial execution across its Gauteng branches, with notarial capability in-house at the Bedfordview and Pretoria offices. Initial consultations are available at the branch most convenient for both of you to attend together. Contact the Bedfordview office on 011 201 7190, the Pretoria office on 012 471 5700, or the head office in Linden, Randburg on 011 888 0246 to set up a meeting; bring any pre-marital asset details and a clear idea of whether you want accrual to apply or not.