UK Cohabiting Partner Rights (2026/27): The Common-Law Marriage Myth
Cohabiting partner rights in England and Wales 2026/27: no common-law marriage, the gaps on death, tax and separation, how to plug them, and the 2026 reform consultation.
The common-law marriage myth
Many people believe that living together for long enough gives a couple the rights of a married couple. In England and Wales it does not: cohabiting partners get no spouse-like rights from cohabitation, however long it lasts and whether or not they have children (Citizens Advice). Rights come from marriage or civil partnership, or from documents you put in place. Inheritance Tax rules, which give no spouse exemption to cohabitants, apply across the UK; the property, inheritance and separation rules in this guide are those of England and Wales.
The Ministry of Justice puts the number of unmarried couples at over 3.5 million (MoJ, June 2026). Without documentation, the consequences on death or separation range from delays over medical decisions to losing a share of the home.
The 7 rights gaps + how to plug them
| Area | Married | Cohabiting | Fix |
|---|---|---|---|
| Inheritance | Spouse or civil partner inherits under the intestacy rules | A cohabiting partner inherits nothing under intestacy | Make a will naming your partner. Consider owning the home as joint tenants so it passes by survivorship. |
| Inheritance Tax | Transfers between spouses and civil partners are exempt; unused nil-rate bands can pass to the survivor | No spouse exemption and no transfer of unused bands; anything left to a partner above the available nil-rate bands is taxed at 40% | Life insurance written in trust; lifetime gifts (potentially exempt after 7 years); specialist advice for larger estates. |
| Pension | Many schemes pay a spouse's pension automatically | Partner benefits usually depend on scheme rules and a nomination | Check and update the nomination on every pension and ask each scheme about partner benefits. |
| Shared home | Statutory "home rights" to occupy the family home (Family Law Act 1996 s.30); the court can divide property on divorce | No automatic share in a home owned by your partner, whatever you paid towards it. A trust claim (TOLATA 1996) is possible but depends on the facts | Buy jointly; if shares are unequal, hold as tenants in common with a declaration of trust recording them. |
| Separation finances | Court can redistribute property and order maintenance (Matrimonial Causes Act 1973) | No statutory financial remedies for the partner. Claims for children under Schedule 1 Children Act 1989 | A cohabitation agreement recording contributions and what happens on separation. |
| Parental responsibility | Both parents have it automatically | The mother has it automatically; an unmarried father has it if registered on the birth certificate (births registered from 1 December 2003), or by agreement or court order | Register both parents on the birth certificate or make a parental responsibility agreement. |
| Medical decisions | "Next of kin" has no legal meaning, but hospitals generally recognise spouses in practice (Citizens Advice) | A partner may not be recognised in practice; neither a spouse nor a partner can make decisions for an adult who lacks capacity without legal authority | A health and welfare lasting power of attorney naming your partner. |
The cohabitant protection checklist
- Make wills naming each other, and review them after major life events (children, buying property).
- Structure joint property deliberately - joint tenants (survivorship) or tenants in common with a declaration of trust setting out the shares.
- Cohabitation agreement - a written record of contributions and what happens on separation or death.
- Pension nominations - check and update the nomination on every pension scheme.
- Life insurance written in trust for your partner, so the payout goes to them directly rather than into your estate.
- Lasting powers of attorney - property and financial affairs, and health and welfare, naming your partner. Registering each costs £92 (£184 for both) unless you qualify for a reduction or exemption (GOV.UK).
- Parental responsibility - register both parents on the birth certificate or make a parental responsibility agreement.
- Joint financial planning - emergency fund, joint vs separate accounts, sinking funds covered in our emergency fund guide + joint accounts guide.
Solicitors' fees for wills, declarations of trust and cohabitation agreements vary; ask for a fixed quote.
Related guides
- UK Intestacy Rules 2026/27 - what happens to cohabitants on partner's death without a will.
- UK Lasting Power of Attorney 2026/27 - lifetime decision-making.
- UK Joint vs Separate Accounts Marriage 2026/27 - household finance + spouse vs cohabitant.
- UK Inheritance Tax Rules - no spouse exemption for cohabitants.
- UK Divorce Financial Planning - contrast with cohabitant separation routes.
Frequently asked questions
Does common-law marriage exist in the UK?
No, not in England and Wales. Living together, however long, with children or shared finances, does not give partners the rights of a married couple or civil partners (Citizens Advice). Rights come from marriage or civil partnership, or from documents you put in place yourselves: a will, a cohabitation agreement, a declaration of trust over the home, pension nominations and lasting powers of attorney. Scotland and Northern Ireland have different rules; Scottish law gives cohabitants some limited claims, so check the Scotland pages on Citizens Advice if you live there.
How long do we need to cohabit before getting any rights?
There is no length of time that turns cohabitation into marriage-like rights. Two years matters for one claim: under the Inheritance (Provision for Family and Dependants) Act 1975, a partner who lived with the person who died as if married for the whole of the 2 years before the death can ask the court for reasonable financial provision from the estate; someone who was being maintained by the person who died can also claim. Bereavement Support Payment can be paid to a partner who was living with the person who died as if married, if they were getting (or entitled to) Child Benefit for a child living with them, or were pregnant (GOV.UK).
Are children of cohabiting parents disadvantaged?
Not financially: both parents must support their children whether or not they are married, and the Child Maintenance Service can be involved (Citizens Advice). Children inherit from both parents under the intestacy rules whatever their parents' marital status. Parental responsibility is the difference: the mother has it automatically, and an unmarried father has it if he is on the birth certificate (births registered from 1 December 2003 in England and Wales) or through a parental responsibility agreement or court order.
What's in a Cohabitation Agreement?
A written agreement covering, for example: who pays what towards the household, who owns the home and in what shares, how joint debts are handled, what happens to property if you separate, and arrangements if one of you becomes ill or dies. Courts are more likely to uphold one where both of you entered it freely, took independent legal advice, disclosed your finances fully and the terms are fair. Advicenow publishes guidance and a template.
What about the home we live in together?
(a) Joint tenants - you own the whole property together; when one of you dies, the other automatically becomes the sole owner, outside the will and intestacy. (b) Tenants in common - each owns a defined share, which can be unequal; on death your share passes under your will or intestacy, not automatically to your partner. (c) Owned by one partner only - the other has no automatic share, whatever they contributed; a claim under the Trusts of Land and Appointment of Trustees Act 1996 depends on the facts and is often hard to prove. A declaration of trust recording your shares avoids most of these disputes.
What if my partner dies without a will?
Under the intestacy rules the estate passes to relatives in a fixed order; a cohabiting partner gets nothing (GOV.UK). Options: (a) a claim under the Inheritance (Provision for Family and Dependants) Act 1975, normally within 6 months of the grant of representation, if you lived together as a couple for the 2 years before the death or were being maintained by your partner; (b) a home owned as joint tenants passes to you by survivorship; (c) joint bank accounts usually pass to the survivor; (d) pension nominations and life insurance written in trust still pay out as set up.
What about separation - can I claim against my partner?
There is no statutory financial-remedy scheme for separating cohabitants in England and Wales. Routes: (a) a property claim under TOLATA 1996 if you have a beneficial interest in a home in your partner's name; (b) a claim for children under Schedule 1 Children Act 1989 - housing or money for the child's benefit; (c) ordinary civil claims, for example on a contract or a loan. A cohabitation agreement is the main protection under the current law.
Is the law on cohabitation changing?
Possibly. On 5 June 2026 the Ministry of Justice launched a consultation, "A fairer end to relationships", which closed on 14 August 2026. It proposes a new framework of financial remedies for cohabitants who have lived together for at least 3 years or share a child and are in an enduring family relationship, and automatic inheritance rights for cohabitants when a partner dies without a will. The government says reforms will follow when parliamentary time allows; until a law is passed, nothing has changed. The Law Commission made recommendations on cohabitation in 2007. Do not rely on reform - wills, cohabitation agreements and property structuring work today.