Generosity With Guardrails: Funding Your Child's First Home Without Putting Yours at Risk

Every week, parents in their fifties and sixties transfer tens of thousands of pounds to help adult children buy their first home. The Bank of Mum and Dad would, if it were a lender, rank among the largest mortgage providers in the country. Yet remarkably few of these transfers come with any legal paperwork at all — and that omission can cost families dearly.

Gift or Loan? Decide Before the Money Moves

The first question is the simplest and the most often left unanswered: is the money a gift or a loan?

If it is a gift, say so in writing, however awkward the conversation. If it is a loan, a formal loan agreement is essential — recording the amount, repayment terms and what happens on death, divorce or disagreement. Without one, the money sits in a legal grey zone: unenforceable as a loan, yet potentially contested as a gift if relationships sour or the estate is administered.

Mortgage lenders will also want clarity. Most require a signed declaration confirming funds are a gift with no expectation of repayment, since an undisclosed loan could affect affordability and the lender's priority on a sale.

Protecting the Money If a Relationship Fails

Few parents like to raise the possibility that their child's relationship might end. But if the money contributes to a home purchased jointly, and nothing is recorded, the departing partner may be entitled to half — including half of your contribution.

Two instruments change that picture:

• A declaration of trust, recorded at conveyancing, can specify that your child's share of the equity reflects the parental contribution, or that a set sum is returned on sale.
• A cohabitation agreement can govern how finances are handled if an unmarried couple separates.

Marriage changes the analysis further — matrimonial law gives the family court wide discretion, and a declaration of trust is a factor but not a guarantee. A solicitor can explain how the structure would be treated and whether a prenuptial agreement is worth considering.

The Inheritance Tax Angle

Gifts to children are potentially exempt transfers for inheritance tax purposes. Survive seven years after the gift and it falls outside your estate entirely; die within that window and taper relief may reduce, though not always eliminate, the liability.

Points worth noting:

• There is no limit on how much you may gift, but records of dates and amounts should be kept.
• If you are selling your own home to downsize and gifting part of the proceeds, coordinate the timing with advice.
• If you later need residential care, deliberately large gifts can be scrutinised by the local authority as deliberate deprivation of assets.

Buying Together: Joint Names and Other Structures

Some parents prefer to be on the title deeds themselves — common where a child could not otherwise afford the mortgage. This has consequences: additional property taxes (such as the higher stamp duty land tax surcharge on second homes), potential capital gains tax on a future sale, and complications if you own your current home outright.

Alternatives include a formal shared equity arrangement, or simply a well-drafted declaration of trust that gives you a financial stake without legal ownership. Each route suits different families; none should be chosen without advice.

A Modest Investment in Peace of Mind

The paperwork protecting a £40,000 parental contribution typically costs a fraction of one per cent of the sum involved. Compare that with the cost of a contested separation, a probate dispute or an unexpected inheritance tax bill.

Generosity and prudence are not opposites. If you are considering helping a child buy their first home, a short consultation before the transfer — not after — will ensure your support goes exactly where you intend, and stays there.