Pillar Guide · Updated July 2026
UK Cohabiting Couples Legal Rights: A Complete Guide for 2026/27
Millions of UK couples live together believing “common law marriage” gives them similar legal protection to marriage. It does not, and never has. This guide explains what legal rights cohabiting partners actually have around jointly owned property and TOLATA claims, why there is no automatic inheritance without a will, pension survivor benefits, the tax disadvantages compared with marriage, rights relating to children, and how a cohabitation agreement can provide real protection where the law itself does not.
The Common Law Marriage Myth
Common law marriage has not existed in England and Wales since 1753, when the Clandestine Marriages Act required marriages to be formally solemnised to be legally recognised. Scotland retained a very limited remnant — “marriage by cohabitation with habit and repute” — but formally abolished even that in 2006. Nowhere in the UK today does simply living together for any length of time, however long, create marriage-equivalent legal rights.
Despite this, surveys conducted regularly by organisations including the Law Society and Resolution have consistently found that a majority of the public wrongly believes some version of common law marriage exists. This misunderstanding leaves many long-term cohabiting couples — including those with children together — badly exposed if the relationship ends through separation or death, having made no legal or financial arrangements on the mistaken assumption that the law would automatically protect them.
Jointly Owned and Disputed Property
Where a property is legally owned as joint tenants, it is typically divided equally on separation, regardless of who actually contributed more towards the purchase, unless the couple has separately agreed and recorded a different arrangement. Where owned as tenants in common with defined shares — usually set out in a Declaration of Trust signed at the time of purchase — the property is divided strictly according to those recorded shares rather than any broader assessment of fairness.
Disputes commonly arise where a property is registered in only one partner’s sole name but the other partner contributed towards the mortgage, deposit, or significant improvements. In that situation, the non-owning partner has no automatic right to a share and must instead bring a claim to establish they have acquired a beneficial interest in the property despite not appearing on the legal title.
TOLATA Claims Explained
A claim under the Trusts of Land and Appointment of Trustees Act 1996 (TOLATA) is the court process used to resolve these property ownership disputes between cohabiting partners. Unlike the broad, needs-based discretion a court applies when dividing matrimonial assets on divorce, a TOLATA claim requires the claiming partner to prove they hold a genuine equitable interest — typically through evidence of direct financial contributions to the purchase price or mortgage, or a clear common intention (expressed in words or conduct) that ownership would be shared. TOLATA litigation has a reputation for being fact-heavy, expensive, and slow, frequently taking well over a year to resolve and sometimes consuming a disproportionate share of the property’s actual value in legal costs.
Inheritance Without a Will
If a cohabiting partner dies without a valid will, the intestacy rules apply — and a surviving cohabiting partner has no automatic entitlement to any part of the estate whatsoever, regardless of relationship length or whether the couple had children together. The estate instead passes to the deceased’s children, or if none, to parents, siblings, or more distant relatives following a strict statutory order that entirely bypasses a surviving unmarried partner. A cohabitant left with nothing may be able to bring a claim under the Inheritance (Provision for Family and Dependants) Act 1975 if they can demonstrate they were being maintained by the deceased, or lived together for at least two years immediately before death, but this requires a discretionary court application rather than any automatic entitlement, and is neither certain nor cheap to pursue.
No Right to Maintenance
Unlike divorcing spouses, cohabiting partners have no legal right to claim ongoing, spousal-style maintenance from each other after separation, however long the relationship lasted or however financially interdependent the couple had become. The only realistic financial claims generally available are property claims through TOLATA, and, where the couple has children together, child maintenance through the Child Maintenance Service, plus potential additional claims under Schedule 1 of the Children Act 1989 — which exist for the benefit of the child (for example, helping fund suitable housing while a child is young), not to provide ongoing financial security for the adult partner themselves.
Cohabitation Agreements
A cohabitation agreement is a written contract, agreed while the relationship is still healthy, setting out in advance how property, finances and belongings would be divided if the relationship later ends — serving a broadly similar function to a prenuptial agreement for married couples. UK courts have shown growing willingness to treat properly prepared cohabitation agreements as legally binding contracts, provided both partners received independent legal advice before signing, made full and honest financial disclosure to each other at the time, and were not subject to undue pressure or unfairness in how the agreement was reached. Without one, separating cohabiting couples are left relying on the far more uncertain, adversarial and expensive TOLATA process if a property dispute later arises.
Pension Rights
Pension rights for surviving cohabiting partners depend entirely on the individual scheme’s rules, not any automatic statutory entitlement. Many workplace and public sector schemes — including the LGPS and Teachers’ Pension Scheme — do allow a survivor’s pension to be paid to a cohabiting partner, but typically only where the member formally nominated them, and in some schemes only where financial interdependence at the time of death can be evidenced — an active step that must have been taken in advance, unlike the largely automatic survivor pension a spouse or civil partner usually receives. On separation, rather than death, cohabiting partners have no equivalent at all to the pension sharing order available on divorce — a pension built up entirely during the relationship simply cannot be split between the couple, regardless of how the relationship’s finances were actually structured.
Tax Treatment
Cohabiting couples cannot use the Marriage Allowance to transfer part of the Personal Allowance between partners, cannot transfer assets between each other free of Capital Gains Tax at the point of transfer (spouses and civil partners can), and are not automatically exempt from Inheritance Tax on assets passing to each other on death — unlike spouses and civil partners, who benefit from an unlimited IHT spousal exemption. Cohabiting couples are, however, still treated as a single household and assessed jointly for means-tested benefits such as Universal Credit, meaning they lose out on the tax advantages that come with marriage while continuing to face some of the disadvantages that apply to couples for benefit purposes.
Rights Relating to Children
Legal rights concerning children are largely independent of whether the parents are married. A mother automatically has parental responsibility from birth; a father named on the birth certificate (for births registered since December 2003 in England and Wales) also automatically acquires parental responsibility, regardless of the parents’ marital status. Child maintenance obligations through the Child Maintenance Service apply equally whether separated parents were married or cohabiting. However, broader financial claims connected to children between unmarried parents remain more limited than for divorcing spouses — generally confined to child maintenance and specific housing or capital provision claims under Schedule 1 of the Children Act 1989 for the child’s direct benefit, rather than any wider claim for the adult partner’s own long-term financial security.
Is Reform Coming
The Law Commission has previously recommended a statutory scheme granting eligible cohabiting couples — meeting criteria such as a minimum relationship duration or having a child together — a basic right to apply for a financial remedy on separation, broadly comparable to the protections already available in Scotland under the Family Law (Scotland) Act 2006. As of 2026/27, no UK government has brought forward legislation to implement equivalent reform in England and Wales, leaving cohabiting couples in a considerably weaker legal position than their counterparts in Scotland. Couples should not plan their financial and legal affairs around the assumption that reform is imminent.