Using a Gifted Deposit for Your First UK Mortgage: Rules, Letters and Lender Requirements

This guide is information only and not regulated mortgage, tax, or legal advice. Gifted deposit rules have lender-specific edge cases - take advice from an FCA-authorised broker. Your home may be repossessed if you do not keep up repayments on your mortgage.

How widespread gifted deposits have become

By 2025, roughly half of all UK first-time buyer deposits included some form of family contribution. The "Bank of Mum and Dad" was the sixth-largest UK mortgage lender by volume that year - bigger than several mid-tier high-street banks. Lenders have responded by making gifted deposits standard, routine, and well-documented rather than an edge case.

Who can give a gifted deposit

Each lender publishes its accepted donor categories. The common positions:

• Always accepted - parents, step-parents, grandparents, siblings, spouses, civil partners.
• Usually accepted - aunts, uncles, in-laws.
• Lender-dependent - cousins, godparents, long-term unmarried partners.
• Rarely accepted - friends, employers, charities (some specialist lenders, e.g. Aldermore, Kensington, do accept).

If your donor is non-family, the lender will usually require an enhanced gift letter explaining the relationship and the donor's reason for giving. Halifax, Nationwide, Skipton, and several specialist lenders are typically the most flexible.

The gifted deposit letter

Every lender requires a signed letter from the donor. The letter must state:

1. Donor's full name and address.
2. Recipient (you) - full name.
3. Relationship between donor and recipient.
4. The amount of the gift.
5. The property address (where known).
6. That the gift is unconditional - no repayment expected, no interest expected, no claim on the property retained.
7. That the donor confirms they are solvent and not under any pending bankruptcy or insolvency proceedings.
8. Signed and dated, sometimes witnessed.

Most lenders provide a template via your broker or conveyancer. The letter is sent to both the conveyancer and the mortgage underwriter as part of the application pack.

Source-of-funds documentation

Under UK anti-money-laundering regulations, conveyancers and lenders must verify the source of all deposit funds. For a gifted deposit, this means:

• Donor bank statements - typically 3-6 months showing the money sitting in the donor's account before the gift.
• Provenance of the donor's funds - evidence of how the donor accumulated the money: long-term savings, salary deposits, sale of property/asset, inheritance with grant of probate.
• ID and proof of address - for the donor (the conveyancer's AML duty extends to them).
• Gift transfer evidence - bank transfer record from donor account to recipient account.

Cash gifts are essentially impossible to use - no paper trail means no AML approval. Cheque gifts work but slower than bank transfer.

Timing the gift correctly

The most common cause of gifted-deposit application delays is timing. The fundless option is to "season" the gift in your account for at least 30 days before the formal mortgage application. Better: 90 days. Lenders prefer to see the deposit funds present in your bank statements as established savings rather than a recent unexplained inflow.

Practical sequence:

1. Conversation with donor; agree gift in principle.
2. Donor begins gathering source-of-funds documentation.
3. Gift transferred to your account 3+ months before application.
4. Your normal bank statement balance now includes the deposit.
5. Application submitted with seasoned deposit + gift letter + source-of-funds pack.

Loan vs gift - why structure matters

Some families prefer to call the help a "loan" rather than a "gift" - perhaps because the parents want to be able to ask for it back, or because they expect the child to repay it once they're earning more.

For mortgage purposes, this is a critical structural choice:

• If declared as a loan - the lender treats the repayment as a monthly outgoing. A £20,000 loan over 10 years adds ~£170/month of debt service, reducing borrowing capacity by ~£25,000-£35,000. Some lenders refuse declared loans for deposit funding entirely.
• If declared as a gift - no effect on affordability. The donor signs away the right to repayment in the gift letter.

Lying about the structure (calling it a gift when it's actually a loan you intend to repay) is mortgage fraud. The correct play for most families: gift it formally, with a separate informal family understanding that the child may choose to repay later if their circumstances allow. The donor cannot legally enforce that informal agreement, but families often honour it.

Tax implications

Income tax / Capital Gains Tax

None on the gift itself - cash gifts from UK individuals to UK individuals are not income for the recipient and not chargeable gains for the donor.

Inheritance Tax (IHT) - the 7-year rule

If the donor dies within 7 years of the gift, the gift may form part of their estate for IHT purposes. The standard nil-rate band (£325,000 per donor in 2026, plus residence nil-rate band up to £175,000 where applicable) means most gifts are well within tax-free territory. Where total gifts in 7 years exceed the band, taper relief applies:

For most parents gifting £10,000-£50,000 to a child, IHT exposure is minimal or zero. For larger gifts from wealthy parents, take advice from a tax professional - a properly structured Potentially Exempt Transfer can be effective.

Overseas gifted deposits

Gifts from overseas family are accepted by most major UK lenders but trigger enhanced AML checks:

• Donor bank statements (often translated and certified if not in English).
• Source-of-wealth documentation - typically more thorough than for UK donors.
• Currency conversion records showing the GBP-equivalent amount received.
• Confirmation of the donor's tax compliance in their home country.

Allow an additional 2-4 weeks in your application timeline. Specialist lenders (HSBC International, Investec, Coutts) are more familiar with overseas family wealth than most high-street lenders.

Joint Borrower Sole Proprietor as an alternative

If parents want to help but also want their support to be reflected as ongoing income rather than a one-off gift, Joint Borrower Sole Proprietor (JBSP) is often a better structure. Parents go onto the mortgage but stay off the property title - their income aggregates with the buyer's for affordability purposes, but they don't trigger second-property SDLT surcharges and don't disqualify the buyer from first-time buyer SDLT relief.

Detailed guide: JBSP mortgages explained.

What to do next

If a gifted deposit is on the table, have the conversation with your donor early. Transfer funds at least 90 days before application. Gather source-of-funds documentation in parallel. And get matched with a broker who can place your application with a lender comfortable with your specific donor relationship.