WHAT IS COHABITATION?

Cohabitation in South Africa is an unmarried intimate partnership in which two people live together in a relationship-like manner without being married — and South African law does not recognise a “common-law marriage” that would grant cohabitants the same automatic legal rights as a married couple. Cohabitants are protected in specific contexts (the Domestic Violence Act 116 of 1998 treats them as “domestic partners,” and the Children’s Act 38 of 2005 treats children born to cohabiting parents as legitimate), and property sharing on separation is governed by the common-law universal-partnership doctrine rather than matrimonial property rules.

What Cohabitation Means in South African Law

Cohabitation is a domestic partnership between two unmarried people who live together in an intimate relationship, whether opposite-sex or same-sex. South Africa does not recognise “common-law marriage” — cohabitants do not acquire the automatic rights of marriage by living together, holding themselves out as a couple, or having children. Cohabitation is distinct from the three legally recognised forms of marriage in South Africa:

• Marriage under the Marriage Act 25 of 1961.
• Civil unions under the Civil Union Act 17 of 2006.
• Customary marriages under the Recognition of Customary Marriages Act 120 of 1998.

The Legal Status of Cohabitants

Domestic Violence Act 116 of 1998

The Domestic Violence Act defines a “domestic relationship” to include unmarried people “living or having lived together in a relationship resembling a marriage.” A cohabitant who is the victim of physical, sexual, emotional, or economic abuse may apply for a protection order on the same footing as a married spouse.

Maintenance and Inheritance

Cohabitants have no automatic maintenance duty toward each other on separation. Unlike married spouses under the Divorce Act 70 of 1979, cohabitants must rely on a contract or a universal-partnership claim. A surviving cohabitant also does not inherit from a deceased partner on intestate death — the Intestate Succession Act 81 of 1987 distributes the estate among the deceased’s spouse, descendants, parents, and more distant relatives in a defined order, and a cohabitant is not a beneficiary in their own right. A surviving cohabitant may inherit only if named in a valid will, nominated as a beneficiary under a duly executed testamentary disposition, or able to establish a universal-partnership claim that the court recognises against the estate.

Children of the Relationship

Children born to cohabiting parents are legitimate. Section 9 of the Children’s Act 38 of 2005 confirms the child has equal status whether the parents are married “or not.” The biological mother’s rights are automatic; the biological father’s rights require formal acknowledgement, contribution to the child’s upbringing for a defined period, or a court order to be fully activated.

The Universal Partnership Doctrine

The universal-partnership doctrine is the principal legal route through which a cohabitant can claim a share of assets accumulated during the relationship. It is a common-law principle developed in South African case law, most notably in Butters v Mncora (181/2011) [2012] ZASCA 29; 2012 (4) SA 1 (SCA), in which the Supreme Court of Appeal applied the Pothier test and found a tacit universal partnership between unmarried partners who had lived together for almost two decades.

The doctrine requires the partner claiming a share to establish:

1. Intention — that the parties intended to form a partnership, which can be tacit and inferred from conduct.
2. Contribution — that each party contributed something to the joint venture (money, labour, skill, or other value).
3. Lawful object — that the partnership’s purpose was lawful (communis bonis).

The doctrine has been applied most clearly where the partnership involves a commercial or income-generating endeavour — for example, a business run jointly by the couple. Its application to purely domestic cohabitation is narrower and depends on facts. On separation, assets are split according to each partner’s contribution, not automatically 50/50.

Cohabitation vs. Marriage: The Practical Differences

Dimension	Married Couples	Cohabitants
Legal recognition on registration	Automatic under the Marriage Act, Civil Union Act, or Recognition of Customary Marriages Act	None — no registration regime that grants marriage-equivalent status
Matrimonial property regime	Default community of property, out of community with accrual, or antenuptial contract applies	No matrimonial property regime applies by default
Maintenance between partners on separation	Governed by the Divorce Act (clean break or spousal maintenance)	No automatic duty
Inheritance on death	Intestate inheritance rules apply; surviving spouse has defined rights	Surviving cohabitant has no automatic inheritance rights
Domestic violence protection	Available under the Domestic Violence Act as a married relationship	Available under the Domestic Violence Act as a “domestic relationship”
Children’s status	Legitimate	Legitimate (Children’s Act 38 of 2005)
Tax and pension treatment	Specific spousal exemptions and nominations	No automatic spousal treatment

Drafting a Cohabitation Agreement

A cohabitation agreement is not a publicly registered marriage, and the law does not require it to be notarised or filed anywhere to be valid between the parties. It must be in writing and signed by both parties. Witnessing and, where appropriate, notarisation strengthen the agreement’s evidential weight if it is later disputed. A well-drafted agreement should cover:

• Property and finances — how jointly owned assets will be divided on separation, how contributions will be credited, and how jointly accumulated property will be split.
• Living expenses and debt — how household costs are shared during the relationship, and responsibility for debts incurred jointly and individually.
• Children — agreement on the care, support, and education of any children of the relationship.
• What happens on separation — process for unwinding the joint household, mediation as a first step, and dispute resolution.
• What happens on death — provision for the surviving partner in line with the deceased’s will or a separate testamentary arrangement.

When Cohabitation Ends

Cohabitation has no formal dissolution procedure. There is no equivalent of a divorce for unmarried partners. The practical end of a cohabitation relationship is shaped by the absence of a legal status:

• Separation. The parties must unwind shared finances, address housing, and resolve any universal-partnership claim out of court or through litigation in the relevant division of the High Court.
• Death of one partner. The estate is administered in terms of the deceased’s will (if any), failing which intestate succession applies and the surviving cohabitant is not a beneficiary in their own right.
• Domestic violence. The Domestic Violence Act’s protection-order regime is available to cohabitants on the same footing as spouses.
• Maintenance of children. A parent’s duty to support a child is independent of the parents’ relationship status.

National Legal Position and Gauteng Family-Law Practice

South African law does not recognise “common-law marriage” as a category that grants unmarried cohabitants marriage-equivalent rights — the position is national and uniform across the country’s divisions of the High Court and Magistrates’ Courts. Cohabitants who need protection from a violent partner apply under the Domestic Violence Act 116 of 1998 in the relevant Magistrate’s Court for the area in which they reside. Cohabitation-related litigation that cannot be resolved between the parties — for example, a universal-partnership claim on separation or an estate dispute after a partner’s death — runs through the Gauteng Division of the High Court for matters arising in Johannesburg, Randburg, Sandton, Pretoria, Centurion, Roodepoort, Bedfordview, Alberton, and Midrand. The firm’s Family Law practice advises on cohabitation agreements, universal-partnership claims on separation, maintenance disputes involving unmarried parents, and the estate-planning steps a cohabitant should take to protect a surviving partner where the intestate succession rules would otherwise leave them without recourse.

Frequently Asked Questions

Is cohabitation recognised as a common-law marriage in South Africa?

No. South African law does not recognise “common-law marriage” as a route that grants cohabitants the automatic legal rights of marriage. Cohabitants are protected in specific contexts (the Domestic Violence Act 116 of 1998 treats them as domestic partners) and may share property on separation through the universal-partnership doctrine, but they do not acquire the matrimonial property regime, maintenance duties, or inheritance rights that flow from marriage.

Does a cohabitation agreement need to be registered or notarised?

South African law does not require a cohabitation agreement to be registered or notarised to be valid between the parties, but it must be in writing and signed by both. Witnessing and notarisation are not mandatory but strengthen the agreement’s evidential weight if it is later disputed.

What happens to property if a cohabitation relationship ends?

Property owned in each partner’s name remains that partner’s property unless a universal-partnership claim is established or the property is held jointly. The universal-partnership doctrine allows a partner who can show a joint endeavour (most clearly where the couple ran a business together) to claim a share of assets accumulated during the relationship, divided according to contribution rather than automatically 50/50.

Does a cohabitant inherit from their partner if their partner dies without a will?

No. Intestate succession in South Africa does not recognise cohabitants as heirs in their own right. The Intestate Succession Act 81 of 1987 divides the estate among the deceased’s spouse, descendants, parents, or more distant relatives in a defined order. A cohabitant who is not married to the deceased and is not named in a valid will has no automatic inheritance right.

Are children born to cohabiting parents legitimate?

Yes. Children born to unmarried parents who are cohabiting (or not) are legitimate in South African law (Children’s Act 38 of 2005), and both parents have parental rights and responsibilities. An unmarried biological father’s rights, however, require formal acknowledgement or a court order to be fully activated.

Can a cohabitant apply for a protection order against a violent partner?

Yes. The Domestic Violence Act 116 of 1998 expressly extends its protection-order regime to people in a “domestic relationship,” which includes unmarried people “living or having lived together in a relationship resembling a marriage.”

Cohabitation in South Africa leaves real legal gaps that marriage fills automatically — and the right advice depends on the facts of your situation. Burger Huyser Attorneys’ Family Law team advises on cohabitation agreements, universal-partnership claims on separation, and the estate-planning steps that protect a surviving partner where intestate succession would otherwise leave them without recourse. The firm practises from offices across Gauteng, including Linden, Randburg, Sandton, Centurion, Pretoria, Bedfordview, Alberton, and Midrand, and welcomes a confidential first conversation. Reach the Linden head office on 011 888 0246 (after-hours 061 516 6878) or visit 49 First Avenue, Linden, Randburg, 2194.