Love, life and legal protection: protecting your family finances with relationship agreements

There are a number of agreements that couples can enter into in respect of their relationship to protect their assets.  These agreements are not about expecting a relationship to fail. They are about providing clarity, certainty and protection for both parties. Taking advice early and documenting intentions can help avoid costly disputes and unnecessary stress in the future.

The myth of the “Common Law Marriage”

One of the most common misconceptions among unmarried couples is the belief that they are “common law spouses” and automatically acquire legal rights similar to married couples. In England and Wales, there is no such legal status. Cohabiting couples generally do not benefit from the same statutory protections available to married couples and civil partners.

This can leave couples vulnerable to disputes regarding property ownership, financial contributions, savings, debts and other assets if their relationship comes to an end.

Why asset protection matters

Without clear documentation, separating couples can face:

• Significant legal costs
• Uncertainty over ownership of assets
• Disputes about financial contributions
• Forced sales of property
• Ongoing litigation
• Emotional stress and delayed resolution

In many cases, the cost of proactive legal planning is substantially lower than the cost of resolving disputes through the courts.

Cohabitation Agreements

What is a Cohabitation Agreement?

A Cohabitation Agreement is a legal contract between unmarried couples, who live together, that records their intentions and provides clarity about their financial arrangements and responsibilities. It can help avoid misunderstanding by recording the parties’ intentions and setting out how they wish to manage their financial affairs during the relationship and in the event of separation.

Who should consider one?

A Cohabitation Agreement can be particularly beneficial where:

• One partner owns a property before the relationship.
• One partner has significantly greater wealth.
• One partner receives a property purchase discount.
• The parties are making unequal financial contributions.
• There are children from previous relationships.
• One party intends to invest substantially more money into a property or renovation project.

What can it cover?

A well-drafted Cohabitation Agreement can deal with:

• Property ownership
• Financial contributions
• Joint and separate bank accounts
• Debts and liabilities
• Personal belongings and valuables
• Pets
• Gifts exchanged during the relationship

Every cohabitation agreement is tailored to the couple’s individual circumstances, but there are a number of key provisions that are commonly included as set out above. 

The agreement can record who owns a property, whether one party has contributed a deposit, and how any increase in value or future sale proceeds should be dealt with. It can also address ownership of future property purchases.

The agreement can also deal with financial contributions, such as mortgage payments, rent, household bills and other living expenses.

Other common provisions relate to bank accounts and savings, clarifying whether finances will be kept separate or managed jointly, and how savings should be treated if the relationship ends. The agreement can also address responsibility for debts, including loans, credit cards and other liabilities.

Couples may also wish to include provisions relating to personal possessions, often referred to as chattels, as well as arrangements concerning pets and any significant gifts received from family members. Pets are legally classified as “chattels” meaning in a disagreement, they are treated (rather unfairly) the same way as a car or sofa. These issues can become surprisingly contentious following a separation, so setting out intentions in advance can be extremely helpful. Engagement rings are considered an absolute gift and this means there is no obligation to return the ring unless there is evidence that the ring was given as a conditional gift.  A cohabitation agreement can include a provision to confirm what should happen to the engagement ring should the relationship end.  The cohabitation agreement can also set out what should happen to gifts either monetary or physical items that may be gifted by parents or family members.

Benefits of a Cohabitation Agreement

A properly prepared agreement can:

• Provide financial certainty
• Protect pre-existing assets
• Preserve family wealth
• Reduce misunderstandings
• Minimise legal costs
• Reduce emotional stress if separation occurs

Are Cohabitation Agreements enforceable?

Cohabitation Agreements are generally enforceable under contract law, provided they have been properly prepared and executed. Available remedies may include damages, specific performance and injunctions.

Trust Deeds

What is a Trust Deed?

A Trust Deed, also known as a Declaration of Trust, is a formal document that records the ownership interests in a property. It can specify both legal and beneficial ownership and record how the parties intend to share mortgage payments, household expenses, maintenance costs and sale proceeds.

When is a Trust Deed useful?

A Trust Deed may be appropriate when:

• An unmarried couple purchases a property together.
• One partner invites their partner to come and live in a property they own solely.
• The parties contribute unequal amounts towards a deposit.
• One partner owns the property and the other contributes financially.
• Parents or family members assist with a property purchase.
• One party contributes towards substantial renovations or improvements.

Why is it important?

A Trust Deed provides certainty about ownership and can help avoid disputes if the relationship breaks down. The courts generally treat valid express declarations of trust as conclusive evidence of ownership, except in limited circumstances such as fraud, mistake or undue influence.

How are Trust Deeds treated in the event of separation?

In separation cases involving cohabiting couples, the courts usually treat express declarations of trust as conclusive. An express declaration will only be set aside in limited circumstances, such as fraud, mistake or undue influence. Where an express declaration of trust exists, the courts will generally not consider claims based on constructive trust or proprietary estoppel. In some cases, however, the court may consider whether a later constructive trust has altered the terms of the express trust.

What happens if you do not have one?

Without a Trust Deed, disputes may require a party to establish rights through more complex legal arguments involving:

• Resulting trusts
• Constructive trusts
• Proprietary estoppel

These claims can be difficult, uncertain and expensive to pursue. The burden is on the partner trying to assert that the beneficial interest in the property is different to the title.

What else do I need to consider if contemplating a Trust Deed?

You will also need to consider the following:-

• Any potential tax consequences
• Whether there is an intention to get married and therefore whether a pre-nuptial agreement should be entered into at the same time

Prenuptial Agreements

Why consider a Prenuptial Agreement?

Prenuptial Agreements are no longer reserved for the ultra-wealthy. They can help protect:

• Property acquired before marriage
• Savings and investments
• Business interests
• Pension assets
• Family gifts
• Future inheritances

Are Prenuptial Agreements legally binding?

Prenuptial Agreements are not automatically binding in England and Wales. However, the courts may give significant weight to them where they have been freely entered into, with full understanding of their implications, and where it would be fair to uphold them.  

What makes a Prenuptial Agreement stronger?

The court is likely to give more weight to a Prenuptial Agreement is there is:

• Early planning
• Full financial disclosure
• Independent legal advice for both parties
• No pressure or duress
• Fair and realistic terms
• Regular review after significant life events

Best practice guidance is to enter into a Prenuptial Agreement at least 28 days prior to the wedding.  This is not an automatic rule, but the most practical advice is to start as early as possible.  Entering into the Prenuptial Agreement well in advance of the wedding helps show that both parties have had enough time for disclosure, advice, negotiation and informed consent.  This also reduces the risk of arguments about pressure of duress.

Financial disclosure matters because it helps both parties make informed decisions before entering into an agreement. By clearly setting out income, property, savings, pensions, business interests, debts, trust interests and any relevant future resources, each person can properly understand the other’s financial position and the implications of the proposed terms.

This reduces the risk of later arguments that assets or important information were hidden, and helps show that both parties entered into the agreement with a full appreciation of its effect. It also supports fairness and transparency, which can strengthen the weight the court may give to the agreement if it is later challenged.

Independent legal advice is important because it helps demonstrate that both parties understood the agreement, entered into it voluntarily and had a fair opportunity to consider its implications. It gives each person space to ask questions, assess whether the proposed terms are realistic and fair, and consider whether any amendments, further disclosure or negotiation are needed.

Both parties should also have a genuine opportunity to negotiate, suggest amendments, decline the agreement or seek further advice before signing. Presenting the agreement shortly before the wedding, applying “sign or the wedding is off” pressure, limiting access to legal advice, or refusing to discuss the terms may undermine the fairness of the process. Family pressure, emotional leverage or circumstances where one party feels they have no real choice can also weaken the weight the court may give to the agreement if it is later challenged.

The agreement is stronger if it anticipates change, rather than becoming outdated as circumstances move on, and parties’ needs change therefore review clauses should be included.

What a Prenuptial Agreement cannot do

A Prenuptial Agreement cannot oust the jurisdiction of the court or exclude financial needs.  The welfare and needs of the parties and any children remain central, and unfair terms, which do not meet needs are vulnerable to being challenged.

The importance of fairness

A Prenuptial Agreement should not leave either party unable to meet their reasonable needs. The courts remain concerned with fairness and will continue to consider factors such as housing needs, income requirements, available resources and the welfare of any children.

Key takeaways

Relationship agreements are not about distrust. They are about creating certainty, protecting both parties and reducing the risk of future disputes. Whether you are moving in together, purchasing property, receiving family assistance, or planning to marry, taking legal advice and documenting your intentions early can save significant time, expense and stress in the future.

How Pinney Talfourd can help

If you would like advice about a Cohabitation Agreement, Trust Deed or Prenuptial Agreement, seeking specialist legal advice from a member of the family team at an early stage can help ensure that your arrangements accurately reflect your intentions and provide the protection you need.

To speak to a member of our team, contact your local office on 0800 011 1195 or email