The Bank of Mum and Dad: Helping Your Child Buy a Home Without Storing Up Problems
Gifting a deposit, lending money, or buying together are all sensible ways to help an adult child onto the property ladder. Each one carries legal and tax consequences that are far easier to deal with before completion than after it. Here is what families need to think about, and the practical steps that protect everyone involved.
Parental support has become one of the main routes into home ownership in England and Wales. For most families, the conversation begins with a straightforward question of affordability. How much can we help with, and when can we transfer it?
The questions that actually matter are different, and they tend to surface much later, usually at the worst possible moment. Who owns what share of this property? Was that money a gift or a loan? What happens if the relationship breaks down, if one party wants to sell, or if somebody dies?
None of this is difficult to resolve at the outset. All of it is difficult, expensive, and damaging to resolve afterwards. The single most useful thing a family can do is raise the subject with a conveyancer at the point the offer is accepted, not two weeks before completion when the funds are already sitting in the buyer's account.
Start With the Only Question That Matters: Whose Name Goes on the Title?
Every other legal and tax consequence flows from this decision, so it needs to be made deliberately rather than by default. There are three realistic structures.
The property is bought in the child's sole name. This is the most common arrangement where parents are contributing a deposit. It is also the arrangement most likely to cause problems, because it leaves the parents' contribution undefined. Is it a gift with no strings attached? Is it a loan to be repaid? Or are the parents retaining a beneficial interest, meaning they own a share of the property even though their name does not appear on the title? Those three possibilities have entirely different consequences for tax, for what happens on a sale, and for what happens if the relationship between the parties deteriorates. Silence is not neutral. It simply means the question gets answered by a court later.
The property is bought in joint names. Parents and children can own together, either as joint tenants or as tenants in common. The distinction matters enormously. Joint tenants each own the whole property and, on death, the survivor automatically takes the lot regardless of what any will says. Tenants in common own defined shares that can be unequal and that pass under a will. For family arrangements where contributions are rarely equal, tenants in common is almost always the right structure, supported by a Declaration of Trust recording who put in what.
The property is bought in the parents' names. Less common, but relevant where a child cannot obtain a mortgage or where parents want to retain control. The child occupies the property but has no legal interest in it. This structure has significant tax consequences and needs specialist advice before it is adopted.
If You Are Making a Gift
An outright gift is the cleanest option, and for good reason. It attracts no Stamp Duty Land Tax, it keeps the parents out of the title, and it avoids the surcharges discussed below. What it does not do, on its own, is protect the money.
Document it properly. A Deed of Gift records that the money was given, by whom, to whom, and on what basis. It removes any later argument about whether the funds were a loan, and it forms part of the evidence trail for inheritance tax purposes. It costs very little to prepare and it is worth every penny.
Consider a restriction on the title. A restriction registered at HM Land Registry prevents the property being sold, remortgaged, or transferred without the gifting party being notified or giving consent. It is a practical safeguard rather than an ownership interest. One important point of process: where the child is the client, their consent is required before a restriction can be entered on their title. This is a conversation the family needs to have openly, not something that can be arranged behind the child's back.
Think about the child's partner. This is the concern families raise most often, and it deserves a straight answer. A Declaration of Trust cannot guarantee that gifted funds are ring-fenced in divorce proceedings, because the family court has a wide discretion to redistribute assets. What clear documentation does achieve is proof of where the money came from and what it was intended for, which is often decisive in practice. Where a child is buying with a partner, parents frequently ask that a Declaration of Trust be entered into so that the gifted sum is recognised as coming from the family. Cohabitation agreements and prenuptial agreements are also worth considering, and should be put in place well in advance rather than in the run-up to a wedding.
Understand the tax position before you transfer anything. There is no Stamp Duty Land Tax on an outright cash gift. If the parents retain any interest in the property, however, including a beneficial interest recorded in a Declaration of Trust, the position can change substantially. Where the parents already own another property, a 5 per cent additional property surcharge may apply, and a further 2 per cent applies where they are treated as non-resident for Stamp Duty Land Tax purposes. This is one of the main reasons families choose to gift outright and rely on restrictions and declarations for protection instead.
For inheritance tax, a gift will normally fall out of the estate if the parent survives seven years. That relief is lost if the parent reserves a benefit in the gift, which in this context usually means continuing to live in or make use of the property. Capital gains tax may also be relevant, particularly where parents hold a share in a property that is not their own main residence. Take advice from an accountant or tax adviser alongside the legal advice, not instead of it.
If You Are Making a Loan
An undocumented loan is a gift. That is the practical reality, and families are frequently surprised by it. If there is nothing in writing, the money will usually be treated as having been given rather than lent, with all the consequences that follow.
A loan agreement should deal with, at minimum:
- The term. Is the loan for a fixed period, or repayable on demand?
- Repayment triggers. Sale, remortgage, death, or default are the usual ones.
- Interest. Is the loan interest-bearing or interest-free? Say so expressly.
- Security. Will a charge be registered against the property?
On security, be realistic about priority. Parents can register a legal charge to protect their position, but where there is an existing mortgage the lender's consent is required, and the lender's charge will rank ahead of the parents' charge. If the property is sold in a forced sale, the mortgage is repaid first. The parents only recover money if sufficient equity remains after that. A second charge is a genuine protection, but it is not a guarantee.
A documented loan with a registered charge also matters if the child later becomes insolvent. In that scenario, the parents are creditors with security rather than family members with a grievance, and their position is very considerably stronger.
One further practical point: mortgage lenders will want to know whether parental funds are a gift or a loan, because a loan affects affordability. Most lenders require a signed gifted deposit letter confirming that the money is a gift, that no interest is retained in the property, and that no repayment is expected. Do not sign that letter if the arrangement is in fact a loan. Tell the broker and the conveyancer the truth about the arrangement at the start, and let them find a lender whose criteria fit.
If You Are Buying Together
Joint purchases can work extremely well, provided the family is willing to have some frank conversations at the outset.
A Declaration of Trust is essential. It should record each party's beneficial share, how the mortgage payments are allocated, who funds future repairs and improvements, what happens on a sale, and whether the parents' contribution is a capital investment, a loan repayable on sale, or a gift.
Agree the difficult questions now. Who decides when to sell? What happens if one party wants to sell and the other does not? What happens if somebody cannot keep up with the mortgage payments? Can one party force a sale? Where there is no agreement, the fallback is an application to court under the Trusts of Land and Appointment of Trustees Act 1996, which is slow, expensive, and corrosive to family relationships.
Deal with the Stamp Duty Land Tax position before you commit. Where a parent joins the purchase and already owns a property, the 5 per cent additional property surcharge may be payable, and it is calculated on the full purchase price, not merely on the parent's share. First-time buyers' relief will also be lost, because relief requires every purchaser to be a first-time buyer. The combined effect can run to tens of thousands of pounds, and it is the most common unwelcome surprise in these transactions.
Update your wills. Parents holding a share as tenants in common should say expressly in their will how that share is to pass on death. Without that, the outcome may be very different from what the family intended.
Practical Steps for Every Family
- Have the conversation early. Raise the arrangement with your conveyancer when the offer is accepted, not when funds are being requested.
- Prepare your source of funds evidence now. Every conveyancer is required to establish where deposit money has come from. Bank statements showing the accumulation of funds, evidence of a property sale, investment redemption statements, or documentation of an inheritance will all be needed. Gather them at the outset. Late or incomplete evidence is one of the most common causes of delayed completions.
- Take separate advice where interests differ. Where parents are retaining an interest, taking security, or joining the purchase, they and the child may need independent representation. A conveyancer cannot act for parties whose interests conflict.
- Get tax advice as well as legal advice. The two are not the same discipline, and the Stamp Duty Land Tax, inheritance tax, and capital gains tax positions all need to be considered together.
- Write it down, whatever the arrangement. Deed of Gift, loan agreement, or Declaration of Trust. Verbal family understandings are worthless in a dispute and worse than worthless in a divorce.
- Review the arrangement when circumstances change. Marriage, separation, a new mortgage, a further contribution, or the arrival of grandchildren are all good moments to check that the documentation still reflects reality.
The Bottom Line
Helping a child buy a home is a generous act, and it should not become a source of family conflict years later. Almost every dispute that arises from these arrangements can be traced back to a single failure at the outset: nobody wrote down what the money was for.
The documentation is not expensive, and it does not signal mistrust. It is simply a record of what everybody already agreed, made at a point when everybody is still in agreement. That record is what protects the parents' money, the child's home, and the relationship between them.
If you are considering gifting, lending, or buying jointly with a family member, take specialist legal advice before any money moves.
This article is intended as general information only and does not constitute legal, tax, or financial advice. Tax rates and thresholds are subject to change. Please seek advice on your own circumstances before entering into any property arrangement.



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