Cohabitation: the rights of unmarried partners in Uganda

1. At a glance

It is written for a cohabiting partner, or a partner considering cohabitation, and for the advocates, pupils and clerks assisting them. It concerns the legal status of cohabitation itself, succession, and property division on separation. It does not cover children's rights in detail — see the separate child-maintenance note — beyond the basic point that a child's rights do not depend on the parents' marital status.

Every statutory reference below is to the 2023 Revised Edition of the Laws of Uganda. This note is deliberately candid about a real gap in the case law: no verified Uganda case in the research behind this note decides a property dispute between two people who cohabited but never married — see courts-approach and grey-areas below.

2. There is no common-law marriage in Uganda

Marriage in Uganda is a creature of statute, not of duration or reputation. The recognised forms are civil and church marriage under the Marriage Act, Cap. 146; customary marriage under the Customary Marriage (Registration) Act, Cap. 143; Muslim marriage under the Marriage and Divorce of Mohammedans Act; and Hindu marriage under the Hindu Marriage and Divorce Act. Across all four Acts' interpretation sections, cohabitation is not defined or recognised as a form of marriage in its own right — no matter how long two people live together, hold themselves out as a couple, or have children together, none of that converts the relationship into a marriage under Ugandan law.

3. Succession: a cohabitant is not a 'spouse'

This matters most starkly on death. The Succession Act, Cap. 268 defines 'spouse' as a husband or wife married in accordance with the laws of Uganda, or married under another country's laws and recognised here as a valid marriage. A cohabiting partner, however long the relationship, does not meet that definition and is therefore not entitled to a spouse's share on intestacy.

This is not a drafting oversight — it follows directly and unavoidably from the statutory definition. A surviving cohabitant who wants to be provided for on a partner's death needs a will naming them, or some other deliberate arrangement (for example, property already held jointly, or a nomination on an insurance policy or pension); they cannot rely on intestacy to achieve the result a spouse would get automatically.

4. Property on separation: contribution, not the marital regime

Because cohabitation is not marriage, the matrimonial-property machinery in the Divorce Act — settlement powers under ss.26–27, for instance — simply does not apply. Property disputes between cohabitants fall instead to be resolved on ordinary property-law principles.

The governing reasoning comes from Rwabinumi v Bahimbisomwe, a matrimonial case, but its logic reaches further than marriage itself: the right to own property individually is constitutionally protected under Article 26, and a person claiming a share of another's property must prove a direct or indirect contribution to it — direct monetary contribution, or indirect contribution such as paying household bills, child care, or growing food for the family. Outside marriage, with no statutory presumption of sharing to soften it, that contribution burden falls on the cohabiting claimant with, if anything, more force, not less.

In practice this means a cohabiting partner who did not contribute financially, but who ran the household, raised children, or worked land the couple depended on, is not automatically shut out — indirect contribution counts under the same Rwabinumi framework — but that contribution still has to be proved with evidence, not simply asserted from the fact of having lived together. The absence of a marriage certificate does not lower the evidentiary bar; if anything, it removes any argument that a share should be presumed.

5. How the courts have actually applied the contribution principle here

The strongest available Ugandan authority connecting the contribution principle to a cohabitation fact pattern is Ambayo v Aserua, Civil Appeal No. 100 of 2015, [2022] UGCA 272, Court of Appeal — but it must be characterised precisely, because the parties in that case did go on to marry.

Ambayo is directly useful because the Court of Appeal expressly grappled with contributions made during the years of cohabitation that preceded the eventual marriage — it did not confine the contribution analysis to the post-marriage period only. But it is important to be exact about what the case does and does not decide: the parties in Ambayo had, by the time of the dispute, married, so the Court of Appeal was still formally applying matrimonial-property doctrine to a marriage, treating the pre-marital cohabitation years as part of the contribution history within that marriage — it did not decide a property claim between two people who never married.

6. Why Ugandan law draws the line at marriage, not at relationship reality

It helps a client to understand why the law is structured this way, rather than simply being told the rule. Ugandan family law treats marriage as a formal legal status that a couple chooses to enter, under one of a defined set of statutes, each with its own formalities — registration, witnesses, ceremonies, or a marriage certificate. That choice matters because marriage carries with it a bundle of legal consequences (spousal succession rights, matrimonial-property settlement powers, divorce grounds and procedures) that the law does not want to impose on two people who never made that choice, however committed their relationship in fact.

Framed this way, the succession exclusion and the contribution-only property regime are not gaps or oversights in the law — they are the direct and coherent consequence of treating marriage as an opt-in legal status rather than a description of relationship duration or domestic reality. This is worth explaining to a client who feels the law is unfair to them: the remedy is not to argue that the relationship 'should count' as a marriage, but to take the deliberate legal steps — a will, joint registration of property, documented contribution — that convert the relationship's practical reality into legally protected entitlements.

7. Children's rights do not depend on the parents' marital status

One area is unambiguous regardless of the parents' status: the duty to maintain a child rests on a parent, guardian or any person with custody, and does not depend on the parents ever having married (Children Act, Cap. 62, s.5). Parentage can be declared and maintenance pursued through the ordinary Children Act machinery (s.110, s.121) whether or not the parents were ever married to each other — a child born of a cohabiting relationship stands on exactly the same footing as a child born within marriage for these purposes.

8. Consequences of getting it wrong

The most consequential mistake is relying on the length or quality of the relationship in place of a will or documented joint ownership: a cohabiting partner who dies without a will leaves their surviving partner with no spousal intestacy share at all, however many years they lived together. A surviving cohabitant who then tries to claim a share of the deceased's property has to prove contribution like any other claimant — the relationship itself proves nothing.

On separation, a partner who asserts a share of property based only on 'we were together' rather than on evidenced contribution risks losing the claim outright — Rwabinumi's logic protects individually-owned property unless contribution is proved, and that protection does not relax simply because the couple never married.

9. Practical guidance and drafting tips

10. Common pitfalls

• Believing that cohabiting for a number of years creates a 'common-law marriage' — Ugandan law recognises no such status.
• Expecting to inherit as a spouse on a partner's death without a will — a cohabitant is not a 'spouse' under the Succession Act's own definition.
• Claiming a share of a partner's property on the relationship alone, without evidence of direct or indirect contribution.
• Citing Ambayo v Aserua as though it decided a never-married cohabitant's claim — the parties in that case married before the dispute arose.
• Confusing the partners' own (unprotected) status with the children's rights, which are unaffected by the parents' marital status.

11. Grey areas and points to confirm

No case located in the research behind this note decides a property dispute between cohabitants who never subsequently married — this is stated as an honest gap, not resolved by assumption. Rwabinumi's contribution principle is applied to cohabitants by extension and analogy, and Ambayo v Aserua illustrates that reasoning in a cohabitation-then-marriage fact pattern, but neither is a squarely-on-point never-married-cohabitant precedent. Constitution Article 26 was not independently re-verified from a primary constitution text in the research behind this note, though it is a well-established provision.

A related, unresolved question is how a Ugandan court would treat a claim for a share of property by a never-married cohabitant under a straightforward resulting- or constructive-trust-style argument, as distinct from the Rwabinumi contribution framework developed inside matrimonial litigation. The research behind this note did not locate a case testing that distinction for Uganda specifically — treat any submission built on it as novel argument, not settled law, until independently verified.

12. Practitioner checklist

1. Confirm the relationship is cohabitation, not one of the recognised statutory marriage forms, before advising on rights.
2. Advise on the succession gap directly: no will means no spousal intestacy share for a surviving cohabitant.
3. Gather or advise the client to keep evidence of direct and indirect contribution to any jointly used property.
4. Where joint ownership is intended, document or register it during the relationship, not after separation.
5. Address children's maintenance and parentage independently of the partners' own unresolved status (Children Act s.5, s.110, s.121).
6. Be precise in any pleading or advice about what Ambayo v Aserua actually decided.

13. Advising a cohabiting client: the conversations worth having early

Three conversations are worth having proactively with a cohabiting client, rather than waiting for a crisis to force them. The first is succession: ask directly whether the client wants their partner to inherit, and if so, get a will drafted — this is the single most reliable, and most often neglected, piece of planning available to a cohabiting couple under current Ugandan law.

The second is property: where the couple is jointly building or buying an asset, raise joint registration at the point of acquisition, not at the point of dispute. Waiting until a relationship breaks down to establish a contribution record is far harder — and far more expensive in legal fees — than keeping receipts, bank records and registration documents contemporaneously.

The third is children: reassure the client that a child's maintenance and parentage rights under the Children Act do not depend on the parents' relationship status, so that concern for the children need not (and should not) drive a decision about whether or when to formalise the relationship itself — that is a separate, personal choice the couple should make on its own terms.

14. Sources and further verification

Every statutory reference in this note is to the 2023 Revised Edition of the Laws of Uganda, verified directly against the consolidated Succession Act text; Rwabinumi v Bahimbisomwe and Ambayo v Aserua were verified against the judgment text. Statutory text verified against the consolidated Laws of Uganda as at 31 December 2023. Sourced from the Uganda Legal Information Institute (ulii.org).

• Succession Act, Cap. 268 (2023 Revision) — definition of 'spouse' (a husband or wife married in accordance with the laws of Uganda or a foreign marriage recognised as valid).
• Marriage Act, Cap. 146; Customary Marriage (Registration) Act, Cap. 143; Marriage and Divorce of Mohammedans Act; Hindu Marriage and Divorce Act — the recognised forms of marriage; cohabitation is not among them.
• Children Act, Cap. 62 (2023 Revision) — s.5 (duty to maintain, independent of marriage); ss.110, 121 (parentage; maintenance).
• Constitution of the Republic of Uganda, 1995 — Article 26 (right to own property individually or with others).
• Rwabinumi v Bahimbisomwe, Civil Appeal No. 10 of 2009, [2013] UGSC 22 (Supreme Court).
• Ambayo v Aserua, Civil Appeal No. 100 of 2015, [2022] UGCA 272 (Court of Appeal) — contribution during cohabitation preceding a later marriage; not a never-married-cohabitant precedent.