Living together is a significant step, particularly where property, mortgage payments, family contributions, children or unequal financial arrangements are involved. A cohabitation agreement can help unmarried couples clarify their financial position, reduce uncertainty and avoid disputes if the relationship later breaks down.
Our cohabitation agreement solicitors in Altrincham advise individuals and couples on the preparation, negotiation and review of cohabitation agreements. We provide clear, practical advice on how property, financial contributions, debts, household expenses and future arrangements should be recorded.
We advise clients across Trafford, South Manchester, Cheshire and the wider North West, including those buying property together, moving into a partner’s home or seeking to protect assets before living together.
Cohabitation Agreement advice in Altrincham
Cohabiting couples do not have the same legal rights as married couples or civil partners. This can create uncertainty if a relationship breaks down, particularly where one partner owns the home, both parties contribute to mortgage payments, family members have helped with a deposit or the couple has not clearly recorded their intentions.
Our family lawyers can advise on how to protect your position before, during or after moving in together.
We can help if you are:
- Buying a property with your partner
- Moving into a property owned by your partner
- Inviting your partner to move into your home
- Contributing to mortgage payments or renovations
- Receiving financial help from parents or family members
- Paying unequal deposits
- Concerned about what happens if the relationship ends
- Wanting to record ownership shares clearly
- Looking to protect property, savings or inherited assets
- Starting a family while unmarried
- Reviewing arrangements after a change in circumstances
A properly prepared agreement can help both parties understand where they stand and reduce the risk of future disputes.
Our wider team of family law solicitors in Altrincham can also advise where cohabitation issues overlap with children, separation or other family arrangements.
Solicitors that specialise in Cohabitation Agreements
Our team, led by Simon Magner Mawdsley, with Partners Rebecca Lang and Camilla Burton-Baddeley permanently operating from our Altrincham office, are highly specialised in cohabitation agreement matters.
What is a Cohabitation Agreement?
A cohabitation agreement is a legal agreement between unmarried partners who live together or plan to live together. It records how property, money and other financial matters should be dealt with during the relationship and if the relationship later ends.
An agreement can deal with:
- Property ownership
- Mortgage payments
- Rent
- Contributions to renovations or improvements
- Family loans or gifts
- Savings and joint accounts
- Debts and liabilities
- How property should be sold or transferred
- Arrangements for pets
We can ensure an agreement is tailored to your circumstances and supported by clear financial information and independent legal advice.
Why cohabiting couples need legal advice

Many unmarried couples assume they will acquire rights similar to married couples if they live together for long enough. This is not the case in England and Wales. There is no such thing as a “common law marriage”, regardless of how long you have lived together or whether you have children.
Without a written agreement, disputes between cohabiting partners can become difficult, expensive and uncertain. This is particularly true where property is owned in one person’s name, contributions have been made informally or there is disagreement about what was intended at the time a property was bought.
Legal advice can help you understand:
- Who owns the property
- Whether ownership shares are clear
- What happens if one partner has paid more than the other
- Whether mortgage or renovation contributions affect the position
- How family contributions should be recorded
- Whether a declaration of trust is needed
- What should happen if the relationship ends
- Whether your will and estate planning arrangements also need to be reviewed
Cohabitation agreements and property ownership
Property is often the most important issue for cohabiting couples. If you are buying a home together or one partner is moving into the other’s property, it is important to understand how the property is owned and what each person’s financial interest is.
Our solicitors can advise on cohabitation agreements involving:
- Jointly owned homes
- Property owned by one partner
- Unequal deposit contributions
- Mortgage payments
- Renovation costs
- Family loans and gifts
- Buy-to-let property
- Commercial property interests
- Future sale or transfer of the property
A cohabitation agreement can record who owns what, how payments are to be made and what should happen if one partner wants to sell, buy out the other or move out.
Family contributions, gifts and loans
Many couples receive financial help from parents or wider family members when buying a home. If those contributions are not properly recorded, disputes can arise later about whether the money was a gift, loan or contribution to one partner’s share.
Our solicitors can advise where a property purchase involves:
- Gifts from parents
- Family loans
- Unequal deposits
- Contributions from one side of the family
- Inheritance used towards a purchase
- Repayment expectations
- Wider estate planning considerations
Where an agreement is intended to protect inherited assets or family wealth, our Wills, Trusts and Tax solicitors can work alongside the family team to ensure related succession arrangements are considered.
Cohabitation agreements for business owners and professionals
A cohabitation agreement can also be important where one or both partners owns a business, has company shares, holds partnership interests or has significant personal assets.
The agreement can help clarify how personal and business assets should be treated, particularly where one partner is contributing to the household while the other is building or investing in a business.
We can advise on cohabitation agreements involving:
- Business ownership
- Company shares
- Partnership interests
- Director income
- Investment assets
- Commercial property
- Family businesses
- Property portfolios
- Inherited wealth
- Assets acquired before the relationship
Cohabitation agreements and children

A cohabitation agreement can help unmarried couples record practical and financial arrangements, but it cannot override the legal principles that apply to children.
If you have children together or are planning to start a family, the agreement may still help clarify wider financial arrangements, including:
- Housing contributions
- Household expenses
- Property ownership
- Savings and financial support
- What happens if one parent reduces work to care for children
- Review points after the birth of a child
Any arrangements concerning children must always be considered carefully and may need separate legal advice if the relationship later breaks down.
What should a cohabitation agreement include?
The content of a cohabitation agreement will depend on your circumstances and our cohabitation lawyers provide bespoke guidance based on your situation.
A well-prepared agreement should be clear, practical and tailored to the way you intend to live together.
It may include:
- Details of property ownership
- Deposit contributions
- Mortgage arrangements
- Rent and bills
- Household expenses
- Joint bank accounts, savings & debts
- Family loans or gifts
- Ownership of cars, furniture, valuables or pets
- What happens if one partner moves out
- What happens if the property is sold
- How disputes will be resolved
- When the agreement should be reviewed
The agreement should be prepared carefully so that both parties understand what it covers and how it may be relied on in future.
Is a cohabitation agreement legally binding?
A properly prepared cohabitation agreement can be legally binding as a contract, provided it is entered into correctly. The strength of the agreement will depend on the circumstances and the process followed when it is prepared.
Important factors include:
- Both parties entering into the agreement freely
- Each party understanding the agreement
- Full and accurate financial information
- Independent legal advice
- Clear drafting
- No pressure or duress
- The terms being reasonable and practical
- The agreement being reviewed if circumstances change
This is why it is important to take specialist legal advice rather than relying on a template document.
How much does a cohabitation agreement cost?
The cost of a cohabitation agreement will depend on the complexity of your circumstances and what the agreement needs to cover.
A straightforward agreement will usually require less work than one involving several properties, unequal financial contributions, family loans, business interests, inherited wealth or detailed negotiations between the parties.
Once we understand your circumstances, we will explain the likely scope of work and provide clear information about costs before proceeding. Each partner should usually receive independent legal advice, so both parties may need to instruct separate solicitors.
Cohabitation disputes after separation
If you have separated from an unmarried partner and do not have a cohabitation agreement, you may still need legal advice about property, money and the financial contributions made during the relationship.
Unlike married couples and civil partners, cohabiting couples do not have access to the same financial claims when a relationship ends. There is no general right to ask the court to divide assets according to what it considers fair, and one partner will not automatically acquire an interest in the other’s property simply because they have lived together for a long time.
The legal position will often depend on how assets are owned, what each person contributed and whether there is evidence of a shared intention about how property or money should be treated.
Disputes can arise over:
- Who legally and beneficially owns the family home
- Whether one partner has acquired an interest in a property held in the other’s name
- Money spent on renovations, extensions or significant improvements
- Financial gifts or loans made by parents and other family members
- Joint bank accounts, savings and investments
- Responsibility for mortgages, loans, credit cards and other joint debts
- Whether the property should be sold
- Whether one partner can buy out the other’s interest
- Who may remain living in the property following separation
- Ownership of furniture, vehicles, valuables and personal belongings
- Arrangements for pets
For example, one partner may have moved into a property legally owned by the other and contributed towards the mortgage or paid for substantial renovations. Another dispute may involve a jointly owned property where the parties paid different deposits but did not record whether they intended to own the property equally.
These cases are usually determined under property, contract and trust law principles rather than the financial remedy rules that apply on divorce. Depending on the circumstances, a claim involving property may be brought under the Trusts of Land and Appointment of Trustees Act 1996, commonly known as TOLATA.
Our solicitors can help you establish your legal position, assess the evidence and consider the most appropriate route towards resolving the dispute.
Cohabitation dispute solicitors for clients in Altrincham, Trafford and South Manchester

We support clients seeking family law services across Trafford, South Manchester, Cheshire and the wider North West, including Altrincham, Hale, Bowdon, Timperley, Sale, Knutsford, Wilmslow and surrounding areas.
We can arrange appointments in person, by phone or by video call, depending on your circumstances.
Why choose Aaron & Partners?
Cohabitation agreements often involve more than family law. They can affect property ownership, family wealth, inheritance, tax, business interests and future estate planning.
As a full-service law firm our solicitors are experienced in advising individuals, couples, families and business owners on complex personal and commercial matters. Our family law solicitors can work alongside colleagues across the firm where wider legal input is needed.
Our Altrincham office
Our Altrincham office provides specialist family law and cohabitation agreement advice to individuals and couples across Trafford, South Manchester, Cheshire and the wider North West.
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Frequently asked questions
What is a cohabitation agreement?
A cohabitation agreement is a legal agreement between unmarried partners who live together or plan to live together. It can record how property, mortgage payments, bills, savings, debts and other financial matters should be dealt with during the relationship and if the relationship ends.
Do unmarried couples have the same rights as married couples?
No. Unmarried couples do not have the same legal rights as married couples or civil partners in England and Wales. There is no such thing as common law marriage, even if you have lived together for many years or have children.
Is a cohabitation agreement legally binding?
A properly prepared cohabitation agreement can be legally binding as a contract, provided it is entered into correctly. Independent legal advice, clear financial information, proper drafting and the absence of pressure are all important.
Do we need a cohabitation agreement if we are buying a house together?
It is strongly advisable, particularly if you are contributing different deposits, sharing mortgage payments unequally or receiving financial help from family members. The agreement can record what each person owns and what should happen if the relationship ends.
What is the difference between a cohabitation agreement and a declaration of trust?
A declaration of trust usually records each person’s beneficial interest in a property. A cohabitation agreement can cover wider arrangements, including mortgage payments, bills, debts, household expenses, personal belongings, pets and what should happen if one partner moves out.
Can we make a cohabitation agreement after moving in together?
Yes. A cohabitation agreement can be prepared before or after you move in together. However, it is usually better to take advice as early as possible, especially before buying property together or making significant financial contributions.
What happens if we separate and do not have a cohabitation agreement?
If you separate without a cohabitation agreement, disputes may need to be resolved by looking at property ownership, financial contributions, evidence of intention and trust law principles. This can be more uncertain and expensive than having clear written arrangements in place.
Do we need separate solicitors?
It is generally advisable for each partner to receive independent legal advice. This helps ensure both parties understand the agreement and reduces the risk of challenge later.
Should we review our cohabitation agreement?
Yes. You should review the agreement if your circumstances change, such as buying a new property, having children, receiving inheritance, starting a business or changing financial contributions.
Do you only advise clients in Altrincham?
No. Our Altrincham office supports clients across Trafford, South Manchester, Cheshire and the wider North West, however we also operate from offices in Chester, Shrewsbury and Wirral to support families and individuals across England and Wales.
We can also advise clients remotely where appropriate.
If you are moving in with your partner, buying a home together or want to clarify how property and finances should be dealt with, our cohabitation agreement solicitors in Altrincham can help.
We will explain your options clearly, prepare an agreement tailored to your circumstances and help you put practical protection in place.
Speak to our cohabitation agreement solicitors
If you are moving in with your partner, buying a home together or want to clarify how property and finances should be dealt with, our family law solicitors can help.
We will explain your options clearly, prepare an agreement tailored to your circumstances and help you put practical protection in place.