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Gorvins Residential Buying a House Together but Unequally: Why You Need a Declaration of Trust

Buying a House Together but Unequally: Why You Need a Declaration of Trust

Last Updated: July 6th, 2026

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Purchasing a property with a partner, a friend, or a family member is a monumental milestone. In the excitement of browsing property portals, attending viewings, and planning the interior decor, it is incredibly easy to overlook the cold, hard financial realities of the transaction. One of the most critical mistakes to avoid as a first-time buyer is failing to plan for what happens if your personal or financial circumstances change in the future.

When you are buying a home with someone else, it is rare for both parties to contribute the exact same amount of money to the purchase. One person might have a larger pool of personal savings, or perhaps one family is providing a more substantial financial boost to get the transaction over the line. When financial contributions are unequal, relying on standard property ownership structures can leave the person who invested more heavily at a severe financial disadvantage if the co-ownership comes to an end. This is precisely why a Declaration of Trust becomes an essential tool for protecting your hard-earned money.

The Pitfalls of Default Co-Ownership under English Law

When you instruct a conveyancing solicitor to handle your property purchase, you will be asked a fundamental question regarding how you wish to hold the legal title of the property. In England and Wales, the choice typically comes down to a choice between joint tenants vs tenants in common. Many buyers do not fully appreciate the profound legal differences between these two options, assuming that property ownership is a uniform concept.

If you opt to hold the property as joint tenants, you and your co-owner own the entire property together in equal, indivisible parts. Under this legal framework, individual shares do not exist. If the property is subsequently sold, the net proceeds are split equally (50/50) by default, regardless of who paid for the deposit, who paid the mortgage, or who funded the renovations. Furthermore, the principle of survivorship applies automatically to a joint tenancy. If one of you passes away, their share of the property automatically transfers to the surviving owner, completely bypassing any instructions left in a will or the rules of intestacy.

For couples who are contributing identical amounts to the deposit, mortgage payments, and ongoing upkeep, a joint tenancy is often the logical and cleanest path forward. However, if you are contributing unequally, this structure creates an immediate and potentially unfair imbalance. If you provide a £40,000 deposit and your partner provides £10,000, choosing a joint tenancy means that, from the moment you exchange contracts, your partner is legally entitled to half of that combined £50,000 equity. To prevent this unfair distribution and to clarify your true intentions, you must look at alternative legal protections.

What Exactly is a Declaration of Trust?

A Declaration of Trust, which is sometimes referred to as a deed of trust, is a legally binding document drafted by your conveyancing solicitor during the purchasing process. It formally and explicitly records the financial arrangements between co-owners, stating exactly who owns what percentage of the property and how the cash should be distributed when the home is eventually sold or if one party wishes to be bought out.

It is helpful to think of a Declaration of Trust as a financial insurance policy for your co-ownership arrangement. Discussing this document does not mean you expect your relationship or friendship to fail; rather, it ensures that both parties enter into a massive financial commitment with total transparency, clarity, and mutual respect. By establishing clear rules from the very beginning, you eliminate the risk of bitter, expensive legal disputes further down the line.

A comprehensive and professionally drafted Declaration of Trust will outline several key parameters:

  • The exact amount contributed by each party towards the initial purchase deposit and the associated conveyancing fees.
  • The proportions in which each owner will contribute to the monthly mortgage repayments.
  • How the responsibility for ongoing maintenance, structural repairs, and utility bills will be divided.
  • The agreed mechanism for splitting any capital growth or loss from a future sale of the property.
  • A clear framework for what happens if one owner wants to leave the property, including valuation methods and buyout options.

By utilising this document, your solicitor will register the property at HM Land Registry as tenants in common. According to official HM Land Registry guidance on joint property ownership, holding a home as tenants in common allows you to own separate, clearly defined shares of the property. These shares do not have to be equal, and crucially, they can be passed on to chosen beneficiaries in a will rather than automatically reverting to the co-owner under the principle of survivorship.

Real-World Scenarios Where a Trust Deed is Critical

To understand the practical necessity of this legal protection, it is useful to examine the most common scenarios that property buyers face in today’s housing market.

Scenario A: The Unequal Deposit with Equal Mortgage Payments

Imagine a couple buying a flat for £250,000. Buyer A contributes a deposit of £40,000 from their personal savings, while Buyer B contributes £10,000. They secure a mortgage for the remaining £200,000 and agree to split the monthly mortgage payments equally. If they separate five years later and sell the flat for the same price, a default joint tenancy would see them split the remaining equity equally, meaning Buyer A loses a significant portion of their initial £40,000 investment. A Declaration of Trust can state that upon sale, Buyer A receives their £40,000 back first, Buyer B receives their £10,000 back, and any remaining equity is split 50/50.

Scenario B: One Party Paying the Mortgage While the Other Pays Bills

In some relationships, one partner might have a higher income and take on the full responsibility for the monthly mortgage repayments, while the other partner covers the grocery bills, council tax, and utilities. If the property is held as tenants in common without a clear deed, determining the true beneficial ownership can become a legal nightmare. A trust deed can explicitly quantify how these ongoing contributions affect the final ownership percentages, ensuring fairness for both the individual paying down the capital debt and the individual supporting the household running costs.

Protecting the Bank of Mum and Dad

The necessity of a Declaration of Trust is amplified significantly when extended family members get involved in the purchase. With rising property prices across the UK, a vast number of buyers are relying heavily on the bank of mum and dad and gifted deposits to secure their foot on the property ladder.

If your parents have gifted you £30,000 to help you buy a home with a romantic partner, their primary intention is usually to benefit you, their child, rather than your partner. If the relationship breaks down after a short period, that gifted family money becomes part of the shared asset pool unless proper legal steps are taken.

When you review our top tips for first-time buyers, you will find that transparency regarding funds is always paramount. A Declaration of Trust acts as a protective shield for family wealth. It can be drafted to state that the £30,000 gifted deposit remains your sole property. If the house is sold, that £30,000 is ring-fenced and returned to you, ensuring your parents’ generosity is protected and your family assets are not inadvertently transferred to an ex-partner.

What Happens if One Person Wants to Move Out?

One of the most complex aspects of co-owning a property is managing the exit strategy. Life is unpredictable, and a co-ownership arrangement might need to end because of a career relocation, a relationship breakdown, or simply a change in personal priorities. Without a written agreement, one party could effectively trap the other in the mortgage, refusing to sell the property or cooperate with a valuation.

A robust Declaration of Trust includes a pre-agreed exit mechanism. It will typically grant the remaining owner a right of first refusal to buy out the departing owner’s share. It will lay down strict timelines for obtaining an independent valuation from a member of the Royal Institution of Chartered Surveyors, ensuring that the buyout price is entirely fair and based on current market conditions. If the remaining owner cannot afford to buy out the departing partner within a set timeframe, the document can stipulate that the property must be placed on the open market for sale, preventing any frustrating stalemates.

How Gorvins Residential Acts as Your Trusted Ally

Broaching the subject of money, deposits, and potential future separations with a partner or friend can feel highly uncomfortable. It is easy to worry that suggesting a legal agreement implies a lack of trust or commitment. At Gorvins Residential, we act as your supportive, grounded ally throughout this process, taking the emotional weight out of the conversation by handling the legal logistics with sensitivity and professionalism.

We frame the Declaration of Trust not as a pessimistic plan for a breakup, but as a smart, responsible financial foundation that allows both parties to enter into homeownership with total clarity and confidence. During the initial stages of your transaction, we can provide you with a comprehensive conveyancing checklist to help you gather the necessary information regarding your finances.

Our expert team will carefully review your unique financial contributions, discuss your long-term objectives, and draft a bespoke agreement tailored to your precise circumstances. By securing this legal protection well before you exchange contracts, you can move into your new home together with complete peace of mind, knowing that your financial future is safely and professionally secured.


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Through a very stressful process buying a first home, Gorvins were confident and collected. Able to deliver what they promised and kept me updated through the stages. I was glad to have No Stress experience with our conveyancer in amongst the chaos of the rest of it.

Used as recommended by my mortgage advisor for a remortgage.  My case was dealt with by Natasha Sands and she made it complete smoothly and to my satisfaction.  Communication was great and all my questions answered promptly.  Will not hesitate to use again next time.

Fantastic service and for a fair price, special thanks to Joseph Hirst who dealt with my account from start to finish and was always on hand to deal with any queries I had, always got back to me in good time and made the whole process as stress free as possible.

Go with Gorvins, if you want peace of mind!

I recently instructed Gorvins to act on my behalf in the purchase of 5 apartments in Liverpool. I am happy to report that I was more than pleased with their performance.The services provided by the person in charge of the file at Gorvins was most professional, reliable and efficient. In fact she went out of her way to help in aspects which was not her responsibility and as a result the deal went­­ through smoothly.

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Gorvins Residential is the trading name of
Gorvins Residential LLP

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