The idea of “common-law marriage” remains one of the most persistent misunderstandings in family law. Many couples believe that living together for long enough will eventually give them the same legal rights as spouses. Some assume that having children or buying a home together will have the same effect. In England and Wales, none of these things creates a marriage or civil partnership.
The distinction may barely register while a relationship is going well. It becomes far more important when the couple separates or one partner dies. As the House of Commons Library explains, cohabitation gives a couple no general legal status. Although unmarried partners are protected in some areas, they do not automatically acquire the extensive financial rights and responsibilities that come with marriage or civil partnership.
For separating spouses, the family court can consider the couple’s overall finances and make orders concerning property, savings, pensions and maintenance. It does not have the same general power to redistribute assets when an unmarried relationship ends. There is usually no automatic entitlement to a former partner’s house, pension, savings or income, even where the couple lived together for many years or one person made substantial unpaid contributions by caring for their home and children.
The family home is where this difference is often felt most sharply. If a property is jointly owned, each partner’s position will depend on whether they hold it as joint tenants or tenants in common. The Government’s joint property ownership guidance explains that joint tenants have equal rights to the whole property and that ownership passes automatically to the survivor when one owner dies. Tenants in common can hold different shares and leave their individual shares to someone through a will.
Where the home belongs to only one partner, the other does not gain an automatic share simply by moving in, paying household bills or living there for a particular number of years. A non-owner may sometimes be able to establish a beneficial interest, but that depends on evidence about the couple’s intentions, agreements, financial contributions and conduct. It is not the same as asking a divorce court to produce the outcome it considers fair.
Disputes of this kind are generally dealt with under property and trust law. The Trusts of Land and Appointment of Trustees Act 1996 allows a trustee or someone claiming an interest in property subject to a trust of land to apply to the court. When considering the application, the court must take account of the matters set out in section 15, including the intentions behind the trust, the purposes for which the property is held and, where relevant, the welfare of a child occupying the property as their home.
Unmarried partners can also find that their right to remain in a shared home is more limited than expected. A spouse or civil partner may be able to register statutory home rights against a property owned by the other person. That particular protection does not extend to an unmarried cohabitant. Their right to stay will instead depend on matters such as ownership, a tenancy, a beneficial interest or another enforceable agreement. The difference is reflected in the Government’s guidance on registering home rights.
Having children together brings legal and financial responsibilities, but it does not turn the parents into spouses. Both remain responsible for their children’s living costs, and most regular payments are dealt with through a private agreement or the Child Maintenance Service. In appropriate cases, the court can also make financial provision for a child under Schedule 1 of the Children Act 1989, including lump-sum and property orders. These powers exist to meet the child’s needs rather than to recreate the financial settlement available on divorce.
Parental responsibility is another separate question. A birth mother has it automatically, but another parent or partner may acquire it through birth registration, marriage or civil partnership, an agreement or a court order. Simply living with a parent and child does not give a new partner parental responsibility. The principal routes are explained in the Government’s parental rights and responsibilities guidance.
The legal gap can become even more pronounced after death. An unmarried partner does not automatically inherit under the intestacy rules, no matter how long the relationship lasted. Property owned as joint tenants will normally pass to the surviving owner, but a share held as tenants in common forms part of the deceased person’s estate. Without a will naming the surviving partner, that share may pass to someone else.
A surviving cohabitant may be able to claim financial provision under the Inheritance (Provision for Family and Dependants) Act 1975. This can include someone who lived in the same household as the deceased, as though they were married or civil partners, throughout the two years immediately before the death. A person who was financially maintained by the deceased may also qualify. However, eligibility to make a claim is not the same as an automatic right to inherit. The court must decide whether reasonable financial provision has been made and whether an order is appropriate.
None of this means that unmarried couples are powerless. It does mean they may need to create protections that married couples receive automatically. A declaration of trust can record ownership shares in a property. A cohabitation agreement can set out responsibility for mortgage payments, household costs, debts and possessions, as well as what the couple intends to happen if they separate. Wills can protect each partner after death, while pension nominations, life insurance and lasting powers of attorney can help address other gaps.
The danger lies in assuming that commitment alone creates legal protection. A couple may share a home, raise children and build a life together, yet still find that the law treats their finances largely as those of two separate individuals. For cohabiting couples, the documents they put in place can therefore matter just as much as the life they share.
This area is governed by several different laws rather than a single cohabitation statute. The principal legislation includes the Trusts of Land and Appointment of Trustees Act 1996, Schedule 1 of the Children Act 1989, the Inheritance (Provision for Family and Dependants) Act 1975 and the intestacy provisions of the Administration of Estates Act 1925.
Please note: This article explains the law in England and Wales. Cohabitants in Scotland have some statutory rights following separation or death under the Family Law (Scotland) Act 2006. The position in Northern Ireland is also different. The jurisdictional differences are summarised by the House of Commons Library.
