Cohabitation Agreements

Cohabitation Agreements2026-04-30T11:19:28+01:00

Helping you protect your property and avoid costly disputes if you separate

The “common law” spouse is a myth. Discover how a Cohabitation Agreement can give unmarried couples clear legal protection and peace of mind.

The number of cohabiting couples continues to grow faster than the number of married couples, and statistically such relationships are more prone to breakdown than marriages are. However contrary to what many believe, a “common law husband” or more usually a “common law wife” in the UK is an urban myth, meaning that cohabiting couples do not have the same protection as married couples. Although the Law Commission has recommended there should be similar remedies available to cohabiting couples as there are for married couples, this is presently not the case. So when unmarried relationships break down, there may be complex and costly legal disputes over property rights if there is no prior agreement in place.

What is a Cohabitation Agreement and who is it for?

A Cohabitation agreement is a legal agreement reached between people who live together who want to set out what would happen in certain circumstances, for example, if a relationship breaks down, someone passes away, goes bankrupt, or simply change their minds and “want out”.

These agreements are generally made between couples, but Declarations of Trust can also be prepared by Laceys for co-owners of property, such as family members lending money for a purchase. Whenever multiple people own a property, it’s crucial to have a Declaration of Trust. This document clarifies the share of ownership each person holds, whether they are in a personal relationship or are business partners investing in property or acquiring premises for trading.

What does a Cohabitation Agreement cover?

Exactly what is covered in a cohabitation agreement depends on the couple’s particular circumstances, but it could include:

  • Clarification of property ownership and responsibility for the payment of outgoings
  • Whether any financial contribution will contribute to sharing of ownership of the property
  • The division of contents
  • What is to happen upon the ending of the relationship and according to how that may occur

Additionally,  both parties should update their Wills to to align with the terms of  the Cohabitation Agreement.

Where two people own a property jointly, they may agree that when one dies, the survivor should automatically become owner of the deceased’s share. This is known as a right of survivorship and it operates independently of any Will that the deceased person may have made. Alternatively, they may agree that when one co-owner dies, his or her share should be inherited by the persons he or she has named in his or her Will. It is for the couple to decide which of these alternatives they want.

Where one of a couple dies having failed to make a Will, there are statutory provisions in the Inheritance (Provision for Family and Dependants Act) 1975 to enable claims to be made for the benefit of a dependant including cohabitees of a relationship of over 2 years duration, a surviving spouse, children and other relatives.

If you are would like any further information or are considering setting up a Cohabitation Agreement, please call one of our team today.

Frequently asked questions

What is a cohabitation agreement?2026-04-30T11:22:29+01:00

A cohabitation agreement is a legal document for couples who live together but are not married or in a civil partnership. It sets out how you will manage money, property, and responsibilities while living together, and what should happen if the relationship ends. A cohabitation agreement in the UK helps avoid confusion and protects both partners by clearly recording what has been agreed.

Do co-habiting couples have the same rights as married people?2026-04-30T11:47:36+01:00

No, cohabiting couples do not have the same legal rights as married couples or civil partners in the UK. Many people believe in “common law marriage,” but this is a myth. If you are not married, you do not have automatic rights to property, savings, or financial support if you separate, which is why a cohabitation agreement can be important.

What should be included in a cohabitation agreement?2026-04-30T11:58:24+01:00

A cohabitation agreement should clearly explain how you and your partner deal with finances. This usually includes who owns the property, how mortgage or rent is paid, how bills and living costs are shared, and what happens to savings, belongings, and debts if you separate. It can also cover contributions to the home and any joint purchases.

How much does a cohabitation agreement cost?2026-04-30T12:02:48+01:00

The cost of a cohabitation agreement will depend on your individual circumstances and how detailed the agreement needs to be. The best way to understand the likely cost is to speak with a solicitor, who can discuss your situation and provide clear guidance based on your needs.

Is a cohabitation agreement legally binding?2026-04-30T12:05:29+01:00

Yes, a cohabitation agreement can be legally binding if it is properly prepared. For this to happen, both partners should enter into the agreement freely, understand what it means, and ideally receive independent legal advice. The agreement should also be fair and based on full financial information.

What happens if we break up and don’t have a cohabitation agreement?2026-04-30T12:08:17+01:00

If you separate without a cohabitation agreement, there are no clear legal rules for dividing assets between you. This can make things uncertain and may lead to disagreements about property, money, or belongings. In some cases, resolving these issues may require legal action, which can be stressful and costly.

What happens to property owned before the relationship in a cohabitation agreement?2026-04-30T12:12:54+01:00

A cohabitation agreement can confirm that property owned by one partner before the relationship remains theirs if the relationship ends. It can also set out what happens if the other partner contributes financially, for example by paying towards a mortgage or renovations, helping to avoid disputes later on.

Can a cohabitation agreement include child arrangements?2026-04-30T12:16:34+01:00

A cohabitation agreement can include your intentions for child arrangements, such as living or contact arrangements. However, these are not legally binding. If there is a disagreement, the court will always make decisions based on what is in the best interests of the child.

Can a cohabitation agreement be updated or changed later?2026-04-30T12:19:10+01:00

Yes, a cohabitation agreement can be updated if your circumstances change. For example, you may want to review it if you buy a property together, have children, or experience a change in income. Keeping the agreement up to date ensures it continues to reflect your situation.

What happens to joint assets if we separate without a cohabitation agreement?2026-04-30T12:27:23+01:00

Without a cohabitation agreement, joint assets are usually divided based on legal ownership rather than fairness. This means the outcome may not reflect each person’s contributions. If ownership is unclear, disputes can arise, which may need to be resolved through legal advice or court proceedings.

Do cohabitation agreements cover debts and liabilities?2026-04-30T12:29:39+01:00

Yes, a cohabitation agreement can set out who is responsible for existing debts and how any shared debts will be managed. This can include loans, credit cards, or household expenses. Having this clearly written down helps prevent misunderstandings and protects both partners financially.

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