Can I Inherit From My Cohabitating Life Partner If They Die Without A Valid Will?

Under South Africa’s Intestate Succession Act 81 of 1987, a surviving cohabiting life partner has no automatic inheritance right. The Act defines “spouse” as someone married to the deceased at the time of death — including a person married by civil union or under a recognised customary marriage — and excludes long-term unmarried partners regardless of how long the relationship lasted. If the deceased dies intestate, the estate passes to the spouse (if any) and blood relatives; the cohabitant is treated as a stranger in law unless they can bring a section 1(4)(b) dependency-based claim, which is discretionary and fact-specific. A valid will under the Wills Act 7 of 1953, signed in the presence of two competent witnesses who also sign, is the only reliable way to leave an inheritance to a cohabiting partner; a cohabitation agreement can complement a will by clarifying contributions and intentions, but it does not substitute for one.

The Default Legal Position: Intestate Succession and the Definition of “Spouse”

The Intestate Succession Act 81 of 1987 governs who inherits when someone dies without a valid will. The Act defines “spouse” as someone married to the deceased at the time of death — including a person married by civil union under the Civil Union Act 17 of 2006 and a spouse under a customary marriage recognised under the Recognition of Customary Marriages Act 120 of 1998. A cohabiting life partner — unmarried, irrespective of how long the relationship has endured — does not fall within that definition.

When the deceased dies intestate leaving a spouse and descendants, section 1(1) of the Act gives the spouse a child’s share or R250,000, whichever is greater, with the balance divided among the descendants. When the deceased dies intestate leaving no spouse, the estate passes down the blood-relative line under the same section — and the cohabitant receives nothing. The Master’s office recognises only legally entitled heirs; an unmarried partner is not an “heir” in law unless nominated in a valid will or, exceptionally, able to sustain a section 1(4)(b) dependency claim.

Who Inherits Under Intestate Succession (Act 81 of 1987)

Surviving Family	Distribution
Spouse only (no descendants)	Spouse inherits the entire estate
Spouse + descendants	Spouse receives a child’s share or R250,000 (whichever is greater); the balance is divided among descendants
Descendants only (no spouse)	Estate divided equally among descendants
No spouse, no descendants	Estate passes to parents, then siblings, then more distant relatives in a fixed order — the cohabitant receives nothing
Cohabiting partner only (no will, no marriage)	No automatic inheritance; cohabitant is not an intestate heir

Section 1(4)(b) of the Intestate Succession Act: A Narrow, Discretionary Remedy

Section 1(4)(b) of the Act allows the Master of the High Court to order that a portion of an intestate estate be paid to a “dependent” of the deceased. Three features of the provision matter:

• Dependency must be shown to have existed at the time of death, not merely at some earlier point in the relationship — the Master looks at financial support actually received, not theoretical need.
• The Master’s decision is administrative and discretionary, not a court order conferring inheritance as of right. The deceased’s other intestate heirs are entitled to be heard before a redistribution order is made.
• It is not the same as a foreign “common-law spouse” or “de facto partner” right. South Africa has not legislated a registered-partnership regime for unmarried couples, and section 1(4)(b) is the closest available substitute — narrower than a true inheritance right and dependent on documentary proof (bank transfers, household accounts, joint liabilities, evidence of a shared household).

A cohabitant who was wholly or substantially maintained by the deceased is the classic profile of a successful claimant. The route is adversarial: the Master weighs the claim against the existing heirs, and the outcome cannot be guaranteed in advance. Anyone considering a section 1(4)(b) claim should treat it as litigation, not administration.

Why a Valid Will Is the Only Reliable Way to Provide for a Cohabiting Partner

The Wills Act 7 of 1953 gives every competent testator freedom of testation — the right to leave property to anyone they choose, including an unmarried partner. That freedom is subject to strict formalities. The will must be signed by the testator in the presence of two competent witnesses, each of whom must also sign in the testator’s presence and in the presence of each other. Section 4A of the Wills Act sets the minimum requirements:

Section 4A Witness Requirements (Wills Act 7 of 1953)

Requirement	Detail
Minimum age	14 years or older
Mental capacity	Capable of appreciating the nature of the transaction
Beneficiary rule	Witness must not be a beneficiary (or the spouse of a beneficiary) under the will
Sanction if breached	Consequence
Beneficiary (or spouse of beneficiary) acts as witness	The bequest to that beneficiary is void; the rest of the will generally remains valid

An “unborn” or “unascertained” person cannot benefit directly under a will. A bequest worded only as “my partner” may fail for uncertainty if the partner is not named or sufficiently identified. A bequest to a cohabitant can also be challenged under section 2(3) of the Maintenance of Surviving Spouses Act 27 of 1990 — but only by someone who was actually financially dependent on the deceased, not by relatives who seek a share on principle.

Finally, coherence matters: a will that conflicts with a cohabitation agreement should be reconciled, or both documents risk being litigated in separate proceedings.

What a Cohabitation Agreement Does — and What It Does Not Do

A cohabitation agreement is a contract between unmarried partners setting out how they have agreed to manage their shared life — contributions to the household, ownership of assets, and what happens on separation. It is not a will, does not dispose of property on death, and does not by itself confer inheritance rights. If either party dies, the surviving partner still has no inheritance right unless named in a will.

The real value of a cohabitation agreement on death is as evidence. It documents contributions, intention, and the parties’ understanding of joint property — material that can be powerful in a section 1(4)(b) dependency claim or in a contract-based claim against an estate. A stale agreement is more often the source of dispute than the absence of one: it should be reviewed and updated as circumstances change (children, property purchases, business interests, separation or reconciliation).

Cohabitation Agreement vs Will — Different Documents, Different Purposes

Question	Cohabitation Agreement	Will
Operates during the relationship?	Yes	No
Operates on separation?	Yes (governs division of assets)	No
Operates on death?	No — does not dispose of property on death	Yes — disposes of property on death
Creates an inheritance right?	No	Yes, subject to formalities
Useful as evidence in a s 1(4)(b) claim?	Yes — documents contributions and intention	Less relevant (the will itself usually settles the question)

The Deceased Estate Process When There Is No Will and No Provision for a Cohabitant

The estate of someone who dies intestate is administered under the Administration of Estates Act 66 of 1965. A cohabitant has no automatic standing to be appointed executor: the Master appoints someone from those entitled to inherit under the Intestate Succession Act — that is, the spouse (if any) and the descendants. Reporting must happen within 14 days of death; full administration typically runs six to twelve months.

A cohabitant who is not named in a will and is not an intestate heir can still approach an attorney to apply for letters of administration as a curator ad litem, or to lodge a section 1(4)(b) claim. Both routes are more adversarial than the standard estate process and require motivation supported by documentary evidence of dependency or contribution, with a cost profile and timeline that differ significantly from the default path.

Joint Property and the Cohabitant: A Separate Question From Inheritance

Inheritance is only one route through which a partner ends up with the deceased’s assets; joint ownership and beneficiary nominations often matter more in practice.

Where the Cohabitant Stands on Different Asset Types

Asset / Instrument	Passes on Death?	Governing Rule
Property co-owned as tenants	No — the surviving co-owner’s share is theirs outright; only the deceased’s share passes through the estate	Co-ownership rules, not inheritance
Property in deceased’s name only (cohabitant contributed to bond or renovations)	Forms part of the estate; contribution alone does not transfer ownership	Will or Intestate Succession Act
Retirement fund death benefit	Discretionary — fund board allocates among dependants and nominees	Section 37C of the Pension Funds Act 24 of 1956 (not an automatic inheritance under the will)
Life policy with named beneficiary	Passes directly to named beneficiary, outside the estate	Policy contract
Joint bank account	Generally passes to the surviving account holder by survivorship rules	Bank contract

Practical estate planning therefore often begins outside the will: nominations, beneficiary updates, joint-account structuring, and cohabitation agreements are all part of the same conversation. A cohabitant named as a beneficiary on a policy or as a nominee on a retirement fund is in a stronger position than one relying on an unwritten assumption. Section 37C of the Pension Funds Act 24 of 1956 governs retirement-fund death benefits and lets the fund’s board distribute the benefit among dependants and nominees at its discretion — not an automatic inheritance under the will. Joint bank accounts and life policies with a named beneficiary fall outside the deceased estate entirely.

Frequently Asked Questions

Can a cohabiting partner inherit if there is no will?

Not automatically. Under the Intestate Succession Act 81 of 1987, a cohabiting life partner is not a “spouse” and does not qualify as an intestate heir — the estate passes to the deceased’s spouse (if any) and blood relatives. A cohabitant may lodge a section 1(4)(b) dependency-based claim against the Master’s discretion, but this is a fact-specific, discretionary remedy, not an automatic inheritance right.

Does the length of the cohabitation matter legally?

No. South African law does not treat long-term cohabitation as conferring inheritance status, regardless of how many years the relationship has lasted. Section 1(4)(b) of the Intestate Succession Act looks at financial dependency at the time of death, not duration of the relationship. The only reliable way to leave an inheritance to a long-term partner is by naming them in a valid will.

Can a cohabitant be appointed executor of the deceased’s estate?

Only if they are named as executor in a valid will. If the deceased dies intestate, the Master of the High Court appoints an executor from those entitled to inherit under the Intestate Succession Act — which excludes unmarried partners. A cohabitant can be appointed if a will names them, or in certain circumstances apply through a court or the Master on a discretionary basis.

Is a cohabitation agreement the same as a will?

No. A cohabitation agreement is a contract between the partners; it governs living arrangements, contributions, and what happens on separation. It does not dispose of property on death. For an inheritance to pass on death, a valid will under the Wills Act 7 of 1953 is required. The two documents work together — an agreement can also serve as evidence of dependency for a section 1(4)(b) claim if no will is in place.

If my partner and I own a house together, do I automatically inherit their share?

No — your share is yours outright as co-owner, but their share forms part of their deceased estate and is governed by their will (or, if intestate, by the Intestate Succession Act). A cohabitant is not an intestate heir. This is one of the most common estate-planning mistakes: joint ownership protects each partner’s share in life, but only a will protects the deceased partner’s share on death.

What documents should I bring to a first conversation with an attorney about this?

Bring the deceased’s ID, a marriage certificate (if any), any prior will, the deceased’s last address, details of major assets (property, policies, retirement funds), and any cohabitation agreement. If you are planning ahead rather than responding to a death, bring your own ID, details of your and your partner’s assets, and any existing wills. Burger Huyser Attorneys’ Wills & Estates practice operates from the head office in Linden, Randburg (011 888 0246) and can field the initial intake conversation across all Gauteng branches.

If you need to plan ahead or respond to a death where a cohabiting partner’s inheritance is at stake, Burger Huyser Attorneys’ Wills & Estates practice can assist — from drafting or reviewing a will and any cohabitation agreement, to reporting the deceased estate to the Master, to lodging or defending a section 1(4)(b) dependency-based claim. The firm’s head office in Linden, Randburg (49 First Avenue, 011 888 0246, after-hours 061 516 6878) handles intake across Gauteng, with the Centurion (012 644 4990), Pretoria/Menlyn (012 471 5700), and Bedfordview (011 201 7190) branches covering the north and east of the province. Initial consultations are booked through the head office directly. Burger Huyser Attorneys carries a 4.8/5 average across 250+ Google reviews (Trustindex verified “Top Rated Law Firm in South Africa”) and holds Best Family Law Firm of the Year recognition from MEA Business Awards and Lawyers Monthly Legal Awards across 2022–2024.