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What does cohabiting mean legally?
Despite being incredibly common, there is actually no cohabitation definition in UK law, and the term can refer to any number of cohabitants, not specifically a couple in a relationship.
So, for example, a cohabiting couple could also be used to define two friends or housemates who share a flat to save costs.
While there is no general definition in law, cohabitants are recognised as ‘associated persons’ under the Family Law Act 1996. This distinction allows partners to apply for non-molestation order or occupation order to protect themselves and their children in cases of domestic abuse, regardless of whose name is on the tenancy or mortgage.
Are there any plans to update cohabitation law in the UK?
The UK Government is running a Cohabitation Consultation from June 2026, looking at offering the more than 3.5 million cohabiting couples stronger legal protections. Whilst there have been no formal decisions, the proposed reforms focus on giving financial rights to cohabiting couples, whilst maintaining a distinction between marriage and cohabitation.
Specifically:
• Survivors of domestic abuse will get better financial protections when bravely leaving a relationship, regardless of whether they’re married
• Bereaved unmarried partners will have automatic rights to inheritance if a partner dies without a Will, reducing stress at one of life’s most difficult times
• Overdue reforms to protect women and meet the needs of modern relationships as the government continues to prioritise tackling violence against women and girls (VAWG) and working people
Law reform can take some time to take effect, and the Government is at this stage only consulting on proposals. However, this is progress towards offering cohabiting couples more protections, provided they meet certain criteria.
Judit Kerese, Senior Associate at our Gloucester family law office, says:
“There have been a number of proposals over the years to reform cohabitation law, including recommendations from the Law Commission. The driving force behind this is to introduce a legal scheme that will allow certain cohabiting couples to make financial claims if their relationship ends, particularly where one partner has suffered economic disadvantage during the relationship.
“Many argue that such reforms would address unfair outcomes and reflect the reality that many couples live together for long periods. However, others are concerned that introducing rights for cohabiting couples could blur the legal distinction between marriage and cohabitation, potentially undermining the institution of marriage.”
Why do people choose to cohabit rather than get married?
Nowadays, people are far more likely to simply live together and share their lives prior to getting married or entering into a civil partnership.
According to Hitched, the average price of a marriage in 2026 is £21,990. A significant amount of money to spend, which is why cohabiting is often seen as the ‘sensible’ decision before entering such a commitment as marriage and potentially spending thousands on a divorce.
Cohabitation provides the opportunity to gauge whether a relationship will be compatible long-term before investing in a wedding.
Some individuals or couples who have been married and divorced before and don’t wish to go through the experience again are also more likely to opt to be cohabiting partners.
What does it mean to be cohabiting partners?
Cohabiting partners means that you are a couple living together but aren’t married or in a civil partnership. Whilst there are many advantages to cohabitation, there are also some disadvantages, such as couples believing they have the same rights as married couples due to common marriage law.
Is common marriage law a myth?
Yes, in the UK, the concept of common law marriage is a myth. A common law partnership has no legal validity, regardless of the amount of time you have lived with your cohabiting partner or whether you have children.
Many people believe that sharing a home with a partner automatically creates a common law marriage between common law partners by default, giving them the same rights that they would receive if they were married.
While attitudes towards cohabitation have evolved, and cohabiting partners are the fastest growing family type in the UK, legal policy has not kept pace and there are very few legal protections for cohabitees. As a result, cohabiting couples are at a disadvantage if one of them passes away or if they separate.
What are the risks of cohabitation?
The breakdown of a non-married relationship can be complicated despite there being no divorce. There are no guarantees that the outcome will be fair irrespective of the length of time a couple have been together.
Whether you are a couple about to move in together, or you have been cohabiting with your partner for some time, it is well worth considering what would happen if your relationship were to break down. For example:
- Property and TOLATA claims: If your relationship ends and you aren’t on the title deeds of the property, you have no automatic right to stay in the home or receive a share of the equity. Proving you have a ‘beneficial interest’ requires complex and expensive litigation under the Trusts of Land and Appointment of Trustees Act (TOLATA).
- No spousal maintenance: There is no legal obligation for a higher-earning partner to provide ongoing financial support to a former cohabitant through spousal maintenance. This can be particularly risky for the partner who has sacrificed their career to raise children, for example.
- Death without a Will (Intestacy): If your partner dies without a Will, the Rules of Intestacy apply. Under these rules, an unmarried partner inherits nothing, and the estate (the total amount of the assets, property, and possessions owned by that person), could pass entirely to distant relatives or children from a previous marriage, potentially leaving you homeless.
- Pensions: Unless they have been explicitly nominated on the policy, most state and private pensions do not automatically pay out a ‘widow’s’ benefit to a cohabiting partner. Unlike married couples, cohabiting couples do not have the option to seek pension sharing or pension offsetting following separation.
To find out more about unmarried partners’ rights after death, check out our latest advice.
What rights do a cohabiting couple have?
There are currently no equivalent rights for cohabitees under UK law, despite married couples having legal rights to determine what will happen to property, money, and other assets if a relationship breaks down, or in the event of death.
Put simply, cohabitating couples have no legal duty to one another while living together, following separation, or even in death. Consequently, cohabiting couples are at greater risk of unwelcome legal outcomes and financial hardship, particularly if they are the more financially vulnerable party.
So, although ‘cohabitation then separation’ is perceived to be relatively informal, risk-free and a simpler alternative to ‘marriage then divorce’, this is misleading.
Speak to one of our team if you need advice on your cohabitation rights.
What happens if a cohabiting couple has children?
Parental rights can be different for cohabiting couples. Whereas married fathers automatically have parental responsibility for any children of a marriage, unmarried fathers only gain parental responsibility if they are named on the child’s birth certificate.
The biological father can acquire parental responsibility by subsequently marrying the birth mother, entering into a parental responsibility agreement or by applying to the court.
One aspect of separation that is not linked to the status of a relationship is when considering who should care for any children. The law does not distinguish between married and cohabiting couples when determining who children should live with after separation, and how much time the children should spend with the other parent. This is always determined by what is in the child’s best interests.
Likewise, the non-resident parent will still have to pay child maintenance regardless of whether they were married to the other parent. This is typically dealt with by the Child Maintenance Service.
How can cohabiting couples protect themselves?
There are two main ways cohabiting couples can protect themselves. The first is through a cohabitation agreement.
A cohabitation agreement (cohabitation contract) is a comprehensive and bespoke deed that formalises what cohabiting couples wish to happen in the event of separation or death.
It sets out mutually agreed plans for jointly and individually owned assets, property, finances, child arrangements, and any other personal arrangements that couples wish to include.
As well as providing security, cohabitation agreements are designed to:
- Provide financial protection for both parties
- Establish responsibility for jointly and individually owned assets including property, pensions, and savings
- Define provisions for children
- Agree on how financial obligations such as rent, mortgage, and other household bills will be maintained
- Offer some certainty should the future look different to how you expected
However, it is important to note that cohabitation agreements are not automatically legally binding documents. They are formal agreements made between a couple and can be prepared by a family lawyer, but they do not have to be upheld in a court dispute. However, as long as a list of criteria is met, it is likely that the court would take this into account in the event of a dispute.
Cohabiting couples can also have Declaration of Trust for Property (also known as a Deed of Trust) drawn up by a family solicitor. This deed is a legal document stating how property is owned, particularly where the couple has made unequal contributions, or one party paid the deposit and the other has paid for renovations. This is a legal document held by the Land Registry and states how a property should be divided if the couple separates. Unlike cohabitation agreements, Declarations of Trust are legally binding.
A Declaration of Trust can work alongside a cohabitation agreement. They are not mutually exclusive.
When should I make a cohabitation agreement?
It is useful to create a cohabitation agreement before you and your partner move in together, setting out clear responsibilities and ownership for your property and finances from day one.
However, it is never too late. Cohabitation agreements are equally beneficial for unmarried couples who already live together and want to formally record their wishes. By actively discussing your wishes now and formally establishing shared plans and objectives, you can ensure equal protection for both you and your partner. This can significantly help to reduce the potential for disagreements and financial insecurity in the future.
Whether you and your partner plan to cohabit, are already in a cohabiting relationship and would like to seek advice on how to protect yourselves, or you need advice following a separation, contact us today to discover how we can help you.
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Amy Turner
Nov 2025
I had my initial meeting to discuss separation proceedings at the Lincoln office. I found the advice given straightforward and easy to understand, with Amy being compassionate and generous with her time.
—R Morrell
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Kamila Cyran
Jul 2025
After going through a tough break up. I got in touch with Kamila Cyran. And she has been brilliant from start to finish. Always communicated and kept me informed of any updates. And always dealt with things promptly if any anything occur. So this deserves a 5 star review and I would recommend this company and Kamila. And I will definitely be in touch if I require anymore help.
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Charlotte Brown
Sep 2023
Charlotte Brown and the team at Stowe Family Law have been brilliant since day 1. When I came to them I had been contemplating self representation due to costs, but allowing them to help has been worth every penny.
When I instructed Charlotte I was depleted and terrified, dealing with a very difficult ex partner and on my own in the UK with no family support. Charlotte was calm and patient throughout every hurdle and was a listening ear many times. I felt very much shielded from conflict as well as far as possible which I am extremely grateful for.
Stowe also have an excellent range of barristers and the ones we used were extremely professional, excellent negotiators and worked to help find logical solutions that would get us closer to the last step. Charlotte alongside the barristers were especially good at also helping me see the bigger picture rather than just telling me what I wanted to hear which in turn has led to a very positive outcome. I still have the last order to get to but we're pretty much there and the solution is the best one for my daughter which was the main focus every step of the way.
—Ms M H
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Nicole Turner
Sep 2023
After researching all week online reviews to find a solicitor who specialised in cohabitation separation and Tolata law, I was overjoyed to make a call to Stowe family law solicitor from the first call I was immediately impressed with the team. The lady who took my initial call was so kind calm professional and understanding.
I was linked to Nicole Turner who guided me through the system helping me to consider all possible outcomes, costs, and timings in a very compassionate manner. My overall experience has made me feel supported through what has been the most horrendous time of my life
—Anon
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