Why Is A Cohabitation Agreement Important?

In South Africa, unmarried couples who live together have no automatic legal protection for shared assets, contributions, or inheritance rights — there is no “common-law marriage” in SA law, and the universal partnership doctrine only applies narrowly where a partner can actually prove a partnership intention and joint contribution. A cohabitation agreement is the written contract that records the parties’ intentions on property, finances, contributions, and exit terms, and is enforceable under general South African contract law. Most couples who sign one do so to avoid the cost and uncertainty of arguing these issues after a relationship breaks down.

Why Unmarried Couples in South Africa Have No Automatic Legal Protection

South African family law is built around the legal status of marriage. Cohabiting partners — even in long, stable relationships with shared children and a jointly owned home — fall outside that statutory framework unless they have taken deliberate steps to put one in place. The result is a legal position that surprises many couples at exactly the wrong moment, usually when a relationship ends or one partner dies.

The core points to understand are these:

• No common-law marriage. South African law does not recognise “common-law marriage.” Cohabiting for any period, regardless of length, does not create the legal status of marriage and does not extend the protections of the Matrimonial Property Act, the Divorce Act, or the Marriage Act to the parties.
• No automatic inheritance on intestacy. The Intestate Succession Act 81 of 1987 governs intestate inheritance, but a cohabitant does not automatically inherit from a deceased partner. Where there is no valid will naming the partner as a beneficiary, the estate devolves on the deceased’s blood relatives in the order set out in the Act.
• No duty of support under the surviving-spouse statute. The Maintenance of Surviving Spouse Act 27 of 1990 applies only to parties whose marriage is recognised in law; it does not extend to cohabitants, regardless of how long the relationship lasted.
• No automatic pension-dependant status. Pension and provident fund nominations are paid to the deceased’s nominated beneficiaries or “dependants” as defined in the Pension Funds Act 24 of 1956. A cohabitant is not automatically a dependant for that purpose and may have to make a separate claim against the fund’s board.
• Universal partnership is narrow. The universal partnership doctrine does exist in SA law — a partner can claim a share of joint assets after a relationship ends — but courts require proof of partnership intention, joint contribution, and an intention to share profit and loss. That is rarely straightforward to evidence, and outcomes are fact-specific.

The practical effect is that every issue the law treats as settled for married couples (how property is divided on separation, how the survivor is provided for on death, whether one partner can claim maintenance) becomes an arguable dispute for unmarried couples — unless it has been put in writing.

What a Cohabitation Agreement Actually Does

A cohabitation agreement is a written private contract between two unmarried partners that records how their finances, property, and obligations are handled during the relationship and on its ending. It does not create the legal status of marriage and does not import the matrimonial property regime — it stands alongside general contract law as the framework the parties have chosen for their relationship.

Concretely, the agreement typically:

• Records each party’s assets and liabilities at the start of the relationship so what was brought in stays separate.
• Sets out how shared expenses — bond repayments, rent, groceries, school fees, utilities — are contributed during the relationship.
• Defines what happens to jointly acquired property, joint accounts, and any business interests while cohabiting and on separation.
• Addresses what happens on death — including nomination of beneficiaries, treatment of jointly owned property, and any continuing financial obligations.
• Provides a clear dispute-resolution route if the relationship breaks down (mediation, arbitration, or a specified court process), keeping a contested breakup out of litigation where possible.
• Allows the parties to record their agreement on points that they would otherwise be bound by under default SA-law positions — provided the terms are not against public policy.

Burger Huyser Attorneys’ Family Law practice drafts these agreements as everyday work for Gauteng couples, particularly through Director Anna-Mi Nel’s Sandton team, which leads the firm’s family-law practice and routinely handles the property, estate, and tax interactions these contracts need to address.

What a Cohabitation Agreement Typically Covers (Clause-by-Clause)

The clauses below cover the practical issues that South African couples most often need to record. The specific combination depends on the couple’s circumstances, but a well-drafted agreement will usually address each of these headings:

Clause	What it addresses
Schedule of assets and liabilities	A disclosure schedule at the date of the agreement, with supporting valuations or statements, identifying what each party brought into the relationship.
Contributions to joint expenses	How household expenses are met — equal contributions, a percentage split, or in proportion to income — and how that can be revisited during the relationship.
Property acquisition	How property bought together is owned (joint tenants, tenants in common, or sole ownership with contribution credit) and how that ownership is treated on separation.
Contributions to each other’s existing assets	How one partner’s contributions to the other’s pre-owned property — for example, paying the bond or funding improvements — are credited if the relationship ends.
Income and debt	How joint bank accounts, joint credit cards, and personal liability for a partner’s debts are handled, and which debts stay with which partner.
Children of the relationship	Care, contact, support, and schooling arrangements, with explicit confirmation that the agreement does not displace parental responsibilities under the Children’s Act 38 of 2005.
Estate and death provisions	Nomination of beneficiaries, treatment of jointly owned property on death, and any continuing financial obligations the surviving partner takes on or releases.
Exit terms	What happens on separation — how jointly owned property is divided, how contributions are credited, and the agreed dispute-resolution process.
Variation and termination	How the agreement is changed during the relationship (typically by signed written variation) and what survives termination.

The Common Pitfalls

A cohabitation agreement is only as durable as the care that goes into it. The recurring pitfalls South African practitioners see are:

1. Relying on verbal agreements. Treating informal arrangements as legally enforceable — they generally are not, or are very hard to prove if the relationship later breaks down.
2. Trusting the universal partnership doctrine on its own. The doctrine is fact-specific and courts have not applied it consistently; it is a fallback, not a substitute for a contract.
3. Failing to update the agreement. Major life events — the birth of a child, a change in income, the purchase of property, a change in business interests — usually require the agreement to be revisited.
4. Including unfair or one-sided terms. These can be set aside under conventional contract-law remedies for unfair contracts or undue influence.
5. Ignoring tax and estate-planning consequences. A cohabitation agreement interacts with SARS donation-tax treatment (where contributions are uneven), estate duty, and capital gains on property disposal; without coordinated planning these can produce unintended outcomes.
6. Trying to contract around the Children’s Act. Care, contact, and maintenance obligations in respect of children cannot be contracted away, no matter how carefully the agreement is worded.

When It’s Worth Putting One in Place

Not every unmarried couple needs a formal agreement, but several common scenarios make one worthwhile:

• Both partners own significant separate assets before cohabiting.
• One partner is moving into the other’s property, or both are purchasing property together.
• Either partner has children from a prior relationship.
• One or both partners run a business that the other contributes to.
• One partner is financially dependent on the other’s income to meet shared expenses.
• The couple intends to keep their finances separate by choice and wants that clearly recorded.
• Either partner has substantial debt that they do not want to become shared.

Burger Huyser Attorneys’ Family Law practice frequently sees each of these scenarios in its Gauteng client base — and couples who fall into more than one category at once are usually the ones who benefit most from putting something in writing early, before any dispute arises.

How a Cohabitation Agreement Is Drafted and Signed in Practice

A practical South African cohabitation agreement follows a fairly standard sequence:

1. Open disclosure. Each party discloses their assets and liabilities honestly. Non-disclosure undermines the agreement’s enforceability later.
2. Independent legal advice. Each party should ideally obtain independent legal advice before signing, both to confirm the agreement is fair and to insulate it from later claims of undue influence.
3. Signing and witnessing. The agreement is signed by both parties, ideally in the presence of witnesses, and dated. Notarisation is not strictly required for enforceability as a private contract, though it is sometimes used for evidential weight and is the norm where the agreement also contains property clauses.
4. Property clauses against the title. Where the agreement contains clauses that bind third parties (for example, a declaration of how jointly owned property will be divided), those clauses need to be lodged against the title at the relevant Deeds Office to bind a later purchaser or creditor.
5. Coordination with wills. Wills and the cohabitation agreement need to be read together — a bequest to a partner should not be contradicted by the agreement’s exit terms, and vice versa.
6. No court or government filing. The agreement is not filed with any court or government office; it is a private contract between the parties.

Cohabitation Agreements in Gauteng: Where the Common-Law Framework Meets Local Practice

Frequently Asked Questions

Is a cohabitation agreement legally binding in South Africa?

Yes — a cohabitation agreement is a private contract between the parties and is enforceable under general South African contract law, provided its terms are not against public policy, were freely and voluntarily concluded, and are not unconscionable. Its binding nature comes from the law of contract rather than from a specific statute governing cohabitation.

Does cohabiting in South Africa give my partner any automatic legal rights?

Not by default. Cohabiting does not create the legal status of marriage, so a surviving cohabitant does not automatically inherit, claim maintenance under the Maintenance of Surviving Spouse Act, or benefit from pension-fund dependant provisions. Some rights may be claimed case by case (for example, via the universal partnership doctrine or a properly drafted will), but none flow automatically from the fact of cohabitation itself.

What is the difference between a cohabitation agreement and an antenuptial contract?

An antenuptial contract is signed before marriage and governs the spouses’ matrimonial property regime (in or out of community of property, with or without accrual) under the Matrimonial Property Act. A cohabitation agreement is for unmarried couples and governs how assets, contributions, and shared property are handled outside marriage. They operate under different legal frameworks and serve different purposes.

Can we write a cohabitation agreement ourselves?

Yes, the parties can draft their own, provided the agreement complies with general SA contract-law requirements. Many couples use a lawyer to draft or review the agreement, particularly where property, business interests, children, or significant assets are involved — drafting errors or one-sided terms risk the agreement being set aside later.

Does a cohabitation agreement need to be notarised or registered?

It does not need to be notarised to be enforceable as a private contract between the parties. However, if the agreement deals with immovable property (for example, how jointly owned property is to be divided on separation), the property-related portions may need to be lodged with the deeds office or reflected in a separate agreement that is registered against the title. A family law attorney can advise on whether the specific terms require registration.

What happens to our joint home if we split up without an agreement?

Without an express written agreement, a partner’s claim to a share of jointly owned property depends on either the title deed (which names the owners) or the universal partnership doctrine, which requires proof of partnership intention and joint contribution — a fact-specific inquiry that often ends in costly litigation. A cohabitation agreement removes that uncertainty by recording how jointly owned property is treated on separation.

If you and your partner are moving in together, buying property together, or want to formalise how your assets and contributions are handled outside marriage, Burger Huyser Attorneys’ Family Law team can draft or review a cohabitation agreement tailored to your circumstances. The firm practises from its Linden/Randburg head office (49 First Avenue, Linden, Randburg — 011 888 0246) with seven Gauteng branches for in-person consultations (Sandton, Roodepoort, Pretoria/Menlyn, Bedfordview, Centurion, Alberton, and Midrand), and family-law work is led by Anna-Mi Nel, Director and Head of the Family Law Department. The firm carries a 4.8/5 average across 250+ Google reviews (Trustindex verified “Top Rated Law Firm in South Africa”) and offers an initial consultation to walk through your situation, the typical clause set, and how the agreement interacts with property, estate, and tax planning.