With house prices at levels that make it difficult for many young adults to buy without family support, parents helping children onto the property ladder has become increasingly common. There are several different ways to do this, from straightforward cash gifts toward a deposit to purchasing a property outright and placing it in trust or in the child's name. Each approach has different implications for stamp duty, mortgage eligibility, inheritance tax, and the legal relationship between parent and child.

This guide explains the main options available, what each involves practically, and the key questions to consider before deciding which approach suits your circumstances.

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Option 1: Gift a Deposit

The most common way parents help children buy a property is by gifting money toward a deposit. The child applies for a mortgage in their own name, and the gift makes up part or all of the deposit required.

Most mortgage lenders will accept a gifted deposit from a parent, but they typically require a signed declaration from the parent confirming that the money is a gift and not a loan, that the parent has no interest in the property, and that there is no expectation of repayment. If the gift is treated as a loan, the lender may count the repayment obligation against the child's affordability assessment.

For inheritance tax purposes, cash gifts can be made within certain annual allowances free of inheritance tax. Gifts above the threshold may be subject to inheritance tax if the donor dies within seven years of making them, under the potentially exempt transfer rules. For large gifts, taking specialist inheritance tax advice before proceeding is worthwhile.

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Option 2: Buy the Property in the Parent's Name and Let the Child Live There

A parent can purchase a property in their own name and allow their child to live in it. This might be rent-free or at a market or reduced rent. The property belongs to the parent, and the child has no ownership interest unless that is later changed.

This approach has several implications. The purchase is treated as a second property for stamp duty purposes, attracting the three percent surcharge on top of the standard rates in England. If the parent already owns their main residence, this will apply. The property will also be a second property for capital gains tax purposes when it is eventually sold, meaning gains are fully taxable.

If the child lives there rent-free, this is a gift with a reservation of benefit for inheritance tax purposes if the parent does not also live there. This means the value of the property would still be counted in the parent's estate for inheritance tax even if the property was later transferred to the child, unless the child pays a market rent.

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Option 3: Joint Purchase with the Child

A parent and child can buy a property together as joint owners, which can help the child secure a larger mortgage than they could afford alone, since both incomes may be considered by the lender. Both parties are legally on the title and jointly liable for the mortgage.

The stamp duty implications depend on whether the parent already owns a property. If they do, the three percent surcharge for additional dwellings will apply to the full purchase price. For the child, if this is their first property, they would otherwise have been eligible for first-time buyer relief on stamp duty, but being in a joint purchase with a parent who already owns property means first-time buyer relief is lost.

Joint ownership also means the parent is jointly responsible for the mortgage if the child fails to pay, and their own mortgage affordability may be affected if they apply for further borrowing in the future. The relationship between the joint owners should be recorded in a deed of trust specifying what share each owns and what happens to the property if either party dies or the arrangement ends.

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Option 4: Buy the Property Outright and Gift It to the Child

A parent can purchase a property outright and then transfer it to the child either immediately or after a period. The transfer is a disposal for capital gains tax purposes at the market value at the time of transfer, meaning a gain may be taxable even if no money changes hands. For inheritance tax, the transfer is a potentially exempt transfer and may be subject to inheritance tax if the parent dies within seven years.

Stamp duty land tax is payable by the child on the transfer if there is a chargeable consideration, which includes any debt secured on the property being transferred with it. A straightforward gift of an unencumbered property does not attract SDLT in the recipient's hands.

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Option 5: Guarantor Mortgage

Some lenders offer guarantor mortgages where a parent guarantees the child's mortgage obligations. This means the parent is liable to cover mortgage payments if the child defaults, but the property is in the child's name and the parent does not need to be on the title. Guarantor mortgages can help a child borrow more than their own income alone would support.

The risk for the parent is significant: if the child cannot pay and the property is repossessed at a loss, the parent as guarantor may be pursued for the shortfall. The parent's credit record may also be affected if payments are missed. Some parents offer savings as security rather than income as a guarantee, through offset or family deposit mortgage products.

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Summary

There are several practical ways to help a child buy a house, ranging from gifting a deposit to joint purchase and outright purchase in the parent's name. Each has different implications for stamp duty, capital gains tax, inheritance tax, mortgage eligibility, and the long-term legal and financial relationship between parent and child.

The right approach depends on your financial position, tax situation, how much control you want to retain over the property, and what outcome you want in the long term. Taking advice from both a solicitor and an accountant or financial adviser before committing to any approach is strongly recommended, particularly for higher-value transactions.