Intergenerational Property Arrangements – How to Protect the ‘Bank of Mum and Dad’

Helping an adult child onto the property ladder is one of the most meaningful financial steps a parent can take. But whether you’re gifting a deposit, lending funds, or buying together, the legal and tax implications are significant, and getting the structure wrong can have costly consequences for the whole family. In this article, we explore the four core considerations that arise in intergenerational property arrangements, and why careful planning from the outset is essential.

Whose name should the property be bought in?

The very first question in any intergenerational property matter is deceptively simple: who will legally own the property? The answer shapes every other legal and tax consideration that follows. There are three typical ownership structures:

• Property in the adult child’s name: This is the most common arrangement, particularly where parents are providing the deposit. However, it immediately raises important questions: is the parents’ contribution a gift, a loan, or are they retaining a beneficial interest in the property? If this is not made explicit from the outset, it can lead to disputes further down the line, as well as unexpected tax consequences, particularly around inheritance tax, capital gains tax, and Stamp Duty Land Tax (“SDLT”). Where a gift is involved, it is important that a Deed of Gift is entered into between all parties to record the intention clearly, avoiding future disputes or tax confusion.
• Property in joint names: Parents and adult children can own property together, either as joint tenants (where each owns the whole and the survivor inherits automatically) or as tenants in common (where shares are specifically defined). For intergenerational arrangements, tenants in common is almost always the more appropriate structure, as it allows unequal contributions to be properly reflected. This is typically combined with a Declaration of Trust to document each party’s contributions and beneficial shares.
• Property in the parents’ names: This is less common but remains relevant where parents wish to retain control or where the adult child cannot secure a mortgage themselves. In this scenario, the child occupies the property but holds no legal interest in it.

If the Bank of Mum and Dad are making a gift, what protections should be considered?

Parents who gift funds towards a property purchase often still want some degree of protection, particularly if their child is in a relationship. There are several mechanisms available.

• Restrictions on the property’s title: A restriction can be registered at HM Land Registry to prevent the adult child from selling, remortgaging, or transferring the property without notifying or obtaining consent from the gifting party. It is worth noting that where the child is the client, their consent is required before such a restriction can be placed on the title.
• Declaration of Trust or Deed of Gift: Even in a gifting scenario, a Declaration of Trust can be a valuable tool. It records who contributed what, protects the funds if the child’s circumstances change, and sets out what happens if the property is sold. Where a child is purchasing with a partner, parents will often ask that a Declaration of Trust be entered into so that, in the event of a relationship breakdown, the gifted funds remain within the family. Where a parent decides not to retain any beneficial interest at all, a Deed of Gift should be prepared to ensure the gift is properly documented, legally valid, and considered as part of inheritance tax and estate planning.
• Protecting against relationship breakdown: This is one of the most common concerns we hear from parents. While a Declaration of Trust cannot guarantee protection in divorce proceedings, clear documentation does help to demonstrate that the funds originated from the parents and were not intended to benefit a partner. Cohabitation agreements and/or prenuptial agreements can also be considered.
• Tax implications: The tax position is an area where the detail really matters. There is no SDLT on an outright cash gift, but if the parents retain any interest in the property, even a beneficial interest through a Declaration of Trust, this can change the SDLT position significantly. For example, if parents own other property already, a 5% additional property surcharge applies. A further 2% surcharge applies where the parents are non-UK residents for SDLT purposes. This factor can often lead parents to choose to gift funds outright in order to avoid the SDLT surcharges and relying on other available forms of protections instead. It is also important for parents to consider their proposed gift in a wider estate planning context as it may trigger inheritance tax and capital gains tax implications. For example, if the intention is for parents to make a gift, for that gift to be effective for inheritance tax purposes it is important that the parents are not reserving a benefit in that gift (e.g. having use of or occupation the property).

If the Bank of Mum and Dad are making a loan, what protections should be considered?

When parents lend funds rather than gift them, the arrangement must be properly documented. An undocumented “loan” risks being treated as a gift, with all the legal and tax consequences that entails.

• The Loan Agreement: A well-drafted loan agreement should cover the following key points:
  • Term – whether fixed or repayable on demand
  • Repayment triggers such as sale, remortgage, death or default
  • Interest – whether the loan is interest-bearing or interest-free
  • Security – whether a registered charge will be taken over the property
• Securing the loan: Parents may wish to register a legal charge over the property to protect their position. Where there is an existing mortgage, the lender’s consent will be required. It is important to understand that the lender’s charge will have priority over the second charge, meaning that in a forced sale, the mortgage is repaid before the parents recover anything. Parents will only receive funds if sufficient equity remains.
• Insolvency considerations: If the child later becomes insolvent, a properly documented loan combined with a registered charge significantly strengthens the parents’ position as creditors.

Joint ventures with the Bank of Mum and Dad

Where parents and children purchase a property jointly or contribute together, documenting the agreed structure requires careful thought.

• Declaration of Trust: A Declaration of Trust is essential in any co-investment arrangement and should address the following key points:
  • Each party’s percentage or beneficial share in the property
  • How mortgage payments are allocated
  • Who will make future contributions, such as for repairs or capital improvements
  • What happens upon sale of the property
  • Whether the parents’ contribution is treated as a capital investment, a loan repayable on sale, or a gift
• Ownership structure: As noted above, tenants in common is often the appropriate structure for intergenerational co-investment, as it allows shares to be set out clearly in the event of unequal contributions. Parents may also wish to address in their Will how their share should pass on death, for example, directly to the surviving child or children.
• Decision-making: Families should have frank conversations at the outset about practical decision-making including topics such as:
  • Who decides when to sell, and what happens if one party wants to sell and the other does not?
  • What happens if one party cannot keep up with mortgage payments?
  • Can one party force a sale of the property?

Without a clear agreement in place, these disputes can escalate into proceedings under the Trusts of Land and Appointment of Trustees Act 1996, which is a costly and stressful outcome for all involved.

• SDLT implications: Co-investment can trigger significant SDLT consequences, including the 5% additional property surcharge becoming payable if the parent already owns a property. SDLT will be calculated on the full consideration (purchase price) for the property, not just the parents’ share. Tax advice should be obtained to ensure the proposed structure does not have adverse consequences.
• Exposure to the child’s future partner or creditors: Even where a parent owns 50% of a property, the child’s share may become subject to cohabitation disputes, divorce proceedings, or creditors if the child becomes insolvent in future. This underlines the importance of having robust documentation in place from the point that the property is purchased to prevent issues arising.

Summary

Intergenerational property investment offers real opportunities for families to build and preserve wealth across generations, but it carries genuine legal and tax complexity that should never be underestimated.

The key principles to be aware of are:

1. Take tax advice and establish the ownership structure early to avoid conflicts, clarify intentions and avoid adverse tax consequences.
2. For gifts, consider whether parents want protection via restrictions or declarations of trust.
3. For loans, ensure they are properly documented and consider mortgage lender consent, security ranking.
4. For joint investment, use a Declaration of Trust to document shares, contributions and decision-making, and consider exposure to the child’s future partner or creditors

Careful structuring and documentation are critical to protecting family wealth and managing expectations across generations. If you are considering any form of intergenerational property arrangement, we would strongly encourage you to take specialist legal advice at the earliest opportunity.