UK Cohabitation Law Reform 2026: Why Unmarried Couples Need Legal Protection

Cohabiting couples are now the fastest-growing family type in England and Wales. According to the Office for National Statistics, the number of cohabiting couple families rose from 5.5 million in 2014 to 6.5 million in 2024. Yet the law governing these relationships has barely changed in decades. When an unmarried couple separates, neither partner has an automatic right to financial support from the other, regardless of how long they lived together or what sacrifices one partner may have made for the benefit of the household.

In late 2025, the Government confirmed that a consultation on cohabitation law reform would begin in Spring 2026. Baroness Levitt, in her capacity as a Government spokesperson, described reform as "a matter of utmost importance." The consultation will run alongside a parallel review of financial remedies on divorce under the Matrimonial Causes Act 1973, reflecting the Government's stated intention to bring consistency and fairness across marriage, civil partnerships, and cohabitation.

This article examines the current legal position of cohabitants in England and Wales, explains why reform has become necessary, and considers what the proposed changes might look like in practice.

The Myth of the Common Law Spouse

One of the most persistent legal myths in England and Wales is the idea of the "common law spouse." Surveys consistently show that a majority of cohabiting couples believe that living together for a certain period of time gives them the same legal rights as married couples. This is simply not true. There is no such status as a common law spouse in English law, and no amount of time spent living together will create one.

When a married couple divorces, the court has wide powers under the Matrimonial Causes Act 1973 to redistribute assets, order maintenance payments, and make pension sharing orders. These powers are designed to achieve a fair outcome, taking into account factors such as the length of the marriage, each party's financial needs and resources, and any economic disadvantage suffered by one party as a result of the marriage.

None of these powers exist for cohabiting couples. When an unmarried couple separates, the only legal framework available is the general law of property and trusts. A cohabitant who does not hold legal title to the family home must rely on establishing a beneficial interest through a constructive trust or proprietary estoppel. These claims are fact-specific, difficult to prove, and expensive to litigate. The leading cases of Lloyds Bank v Rosset [1991] 1 AC 107 and Stack v Dowden [2007] UKHL 17 illustrate just how uncertain the outcome of such claims can be.

What Happens When Cohabiting Couples Separate Today

Under the current law, the position on separation is starkly different from that of married couples. A cohabitant has no right to claim maintenance from their former partner, no matter how long the relationship lasted. There is no automatic entitlement to a share of the other partner's pension. There is no power for the court to transfer property from one partner to the other, unless a beneficial interest can be established through trust law.

The Trusts of Land and Appointment of Trustees Act 1996 (TOLATA) provides a mechanism for resolving disputes about co-owned property, but it operates on strict property law principles rather than concepts of fairness or need. A partner who gave up their career to raise children, maintained the household for twenty years, and contributed nothing directly to the mortgage may find themselves with no legal claim to the property at all.

The position for children is somewhat better. Under Schedule 1 of the Children Act 1989, the court can order financial provision for the benefit of a child, including the transfer of property. However, these orders are made for the child's benefit, not the parent's, and any property transferred typically reverts to the other parent once the child reaches adulthood or completes education.

Why Reform Is Overdue

The Law Commission first recommended reform of cohabitation law in 2007 in its report "Cohabitation: The Financial Consequences of Relationship Breakdown" (Law Com No. 307). The report proposed a scheme under which qualifying cohabitants would be able to apply for financial relief on separation, based on the economic advantages and disadvantages arising from the relationship. The then Labour Government initially accepted the recommendations but later shelved them, citing the need to wait for the outcome of reforms in Scotland.

Scotland introduced a statutory scheme for cohabitants in 2006 under the Family Law (Scotland) Act 2006. Sections 25 to 29 of that Act allow a cohabitant to apply for a financial order on separation, taking into account the economic advantage gained by one partner from the contributions of the other. The Scottish scheme has now been in operation for nearly twenty years and has been broadly welcomed by practitioners, though it has been criticised for being too limited in scope and for the one-year time limit on applications after separation.

In December 2024, the Law Commission published a further scoping report concluding that the law governing financial provision on divorce had not been substantially reformed in over fifty years and was no longer fit for purpose. The report highlighted problems including excessive judicial discretion under Section 25 of the Matrimonial Causes Act 1973, the inconsistent treatment of spousal maintenance, and the tendency for pension values to be overlooked in financial settlements. This report provided fresh impetus for reform not only of divorce law but of cohabitation law as well.

What the Spring 2026 Consultation May Cover

The Government has not yet published the terms of reference for the consultation, but based on Baroness Levitt's statements and the Law Commission's earlier work, it is likely to cover several key areas.

First, the question of who should qualify for protection. The 2007 Law Commission report proposed that cohabitants should qualify if they had lived together for a minimum period (the report suggested two years) or if they had a child together. A qualifying period serves the dual purpose of excluding very short-term relationships and providing a clear threshold for when rights arise.

Second, the basis on which claims should be assessed. The Law Commission's 2007 scheme was based on the concept of "retained benefit," meaning the economic advantage that one partner retained as a result of the other's contributions. This is narrower than the broad discretion available on divorce and is intended to prevent disproportionate claims while still addressing the most obvious cases of economic injustice.

Third, whether the scheme should be opt-in or opt-out. An opt-out scheme would apply automatically to all qualifying cohabitants unless they entered into a formal agreement to exclude themselves. An opt-in scheme would require couples to register or take some positive step to bring themselves within the scope of the legislation. The opt-out model is generally considered more effective at protecting vulnerable parties, who are often the least likely to seek legal advice proactively.

Fourth, the interaction between the new cohabitation scheme and the existing rules on financial remedies for divorcing couples. The Government's decision to consult on both areas simultaneously suggests an intention to create a more coherent and consistent framework across all family relationships.

Other Family Law Developments in 2026

The cohabitation consultation sits alongside several other significant family law developments expected in 2026. In October 2025, the Government announced the repeal of the presumption in Section 1(2A) of the Children Act 1989 that both parents should be involved in a child's life unless doing so would put the child at risk. The repeal was prompted by evidence that the presumption was being relied upon in domestic abuse cases to justify continued contact with an abusive parent. The change is expected to take effect during 2026.

The Pathfinder court programme, which provides specialist support for families affected by domestic abuse within the family court system, is also being expanded into new regions. The programme was piloted in Dorset, North Wales, and Birmingham and has been credited with improving outcomes for both children and victims of abuse.

Wedding law reform is also expected in 2026, following the Law Commission's 2023 report recommending significant changes to the formalities required for legally valid marriages and civil partnerships. The Government indicated its support for modernising wedding law, potentially allowing couples to marry in a wider range of locations and under more flexible arrangements than the current law permits.

What Cohabiting Couples Should Do Now

Until new legislation is enacted, the current law continues to apply. Cohabiting couples should take proactive steps to protect their interests. The most important of these is entering into a cohabitation agreement, which sets out how property, finances, and other assets will be dealt with in the event of separation. While cohabitation agreements are not automatically binding in the same way as consent orders on divorce, they carry significant evidential weight and are likely to be upheld by the courts provided they were entered into voluntarily, with independent legal advice, and with full financial disclosure.

Couples who own property together should ensure that the legal title accurately reflects their intentions. If both partners contribute to the purchase price or mortgage payments, they should consider whether to hold the property as joint tenants or tenants in common, and in what shares. A declaration of trust can record the parties' beneficial interests and their intentions regarding the property.

Cohabiting partners should also make wills. Under the intestacy rules, a surviving cohabitant has no automatic right to inherit from their deceased partner's estate. While it is possible to bring a claim under the Inheritance (Provision for Family and Dependants) Act 1975, such claims are uncertain and expensive. A properly drafted will is far more reliable.

Life insurance and pension nominations should be reviewed to ensure that the surviving partner will be adequately provided for. Unlike married couples, cohabiting partners do not automatically receive a state pension based on their partner's contributions.

Looking Ahead

The Spring 2026 consultation represents the most significant step towards cohabitation law reform in England and Wales in nearly two decades. If the Government follows through on its stated intentions, the consultation could lead to legislation being introduced in the 2026-27 parliamentary session, with new rights potentially coming into force in 2027 or 2028.

The precise shape of the reform will depend on the responses to the consultation and the political appetite for change. However, the direction of travel is clear. The gap between the social reality of cohabitation and the legal protections available to cohabiting couples has become too wide to ignore. For millions of families across England and Wales, reform cannot come soon enough.