The phrase “bank of mum and dad” still conjures up one image: a cheque for a house deposit, handed over at a solicitor’s office with a nervous smile.
That version is out of date. Research from Savills in 2025 found that roughly 52 per cent of first-time buyers had help from family to buy their property, but the deposit is usually the last stop on a much longer road.
Long before anyone is looking at mortgage offers, parents are quietly covering rent top-ups, student living costs, car insurance, driving lessons, a laptop, a deposit on a flat share, sometimes a wedding. None of it gets called the bank of mum and dad at the time. It just gets called being a parent.
The planning question, then, is not really “should I help my kids?” Most of us will, in some form. It is whether the help is thought throughly, or whether it happens in a series of unplanned chunks that you never actually budgeted for.
When Does It Start
University is where a lot of families first notice the gap. The maintenance loan in England is means-tested against household income, and once you are past a fairly modest threshold, the system assumes parents will make up the difference. The National Student Money survey consistently finds that the loan falls short of actual living costs by a few hundred pounds a month, and nobody sends you a letter explaining that in advance.
Then comes renting. A first job in a city, a deposit of five or six weeks’ rent, a guarantor form landing in your inbox. Standing as a guarantor is not a small thing, by the way: you are agreeing to cover the rent if your child cannot, and in a joint tenancy that can mean covering the whole property, not just their room.
By the time the deposit conversation arrives, some parents have already spent years contributing without ever adding it up. That is worth doing, honestly and on paper, before you commit to anything bigger.
How Does Gift, Loan or Something in Between Work
How does the bank of mum and dad work in practice? Usually one of three ways, and the difference matters more than people expect.
- An outright gift: For a bank of mum and dad mortgage deposit, lenders generally want written confirmation that the money is a genuine gift with no expectation of repayment, because a repayable loan changes the borrower’s affordability. Your child’s solicitor will also need source-of-funds evidence, which takes longer than anyone plans for.
- A formal family loan: Documented, with repayment terms. It must be declared to the lender, and it will reduce how much they will lend.
- Keeping a stake: A declaration of trust recording that your contribution buys you a percentage of the property, or is repayable on sale. This is the one that gets skipped and later regretted, particularly if your child is buying with a partner and the contributions are unequal.
None of these is morally superior. But drifting into the middle ground, money that everyone privately thinks of as a loan while nobody writes anything down, is how families fall out.
Can You Actually Afford It, or Does It Just Look Like You Can?
This is the uncomfortable bit. A lump sum sitting in a savings account can feel spare in a way it very much is not, particularly if it is doing quiet work as your emergency fund or part of your retirement plan.
The questions financial advisers like Partridge Muir & Warren tend to ask clients on are pretty consistent: what does your retirement income actually look like without this money, what happens if you stop working earlier than planned through ill health or redundancy, and could you still cope with a boiler, a roof and a car all going in the same year? If the answer to any of those gets shaky once the gift has gone, that is information, not failure.
There is also the later-life cost that people find hardest to think about. Care costs in the UK are not capped in the way many assume, and money given away in your sixties can look very different from your eighties. It is worth getting regulated financial advice before making a large, irreversible gift, especially if it involves drawing on a pension.
The Tax Implications Worth Knowing About
The bank of mum and dad tax implications mostly come down to inheritance tax. In broad terms, there is an annual gifting allowance of £3,000, small gifts of up to £250 per person, specific allowances for wedding gifts, and an exemption for regular gifts made out of surplus income rather than capital. Larger gifts beyond those normally fall under the seven-year rule, sitting outside your estate only if you survive seven years, with taper relief applying in between.
The rules here are moving. Unused pension funds are currently set to be brought within estates for inheritance tax from April 2027, and nil-rate bands have been frozen for some years, which pulls more ordinary family homes into scope. If your gift is large enough for any of this to matter, check the position as it stands now with an accountant or a tax adviser rather than relying on an article, including this one.
Help That Costs Nothing Still Counts
If you cannot hand over a five-figure sum, you are in the majority, and it is worth saying that plainly. The advantages and disadvantages of the bank of mum and dad get debated as though every family has the option in the first place.
Plenty of genuinely valuable support is not cash. Letting an adult child live at home rent-free, or a token rent, for a year or two is often worth more than a modest gift. So is helping them get a Lifetime ISA open early so the government bonus does some of the lifting, or sitting down and working through a budget with someone who has never had to build one.
The thing I keep coming back to, as someone whose children are closer to this stage than I would like, is that our kids do not need us to be a bank. They need us to be solvent, still here, and honest about what we can do. Helping in a way that quietly doesn’t just wreck your own retirement plans or moves problems down the line.
FAQs
What Does a Mortgage Lender Actually Require When the Deposit Is a Family Gift?
Lenders generally require written confirmation that the money is a genuine gift with no expectation of repayment. Your child’s solicitor will also need source-of-funds evidence, which the article notes takes longer than most families plan for.
What Happens If Parents Stand as Guarantor Rather Than Gifting a Deposit?
Standing as a guarantor means agreeing to cover the rent if your child cannot pay. In a joint tenancy, that liability can extend to the entire property, not just your child’s share of the rent.
How Should Parents Handle Helping One Child but Not Others?
Some families record gifts and equalise them later through a will, while others agree that help goes to whoever needs it at the time and say so openly. The article notes that unspoken arrangements, particularly those discovered after a death, are the ones most likely to cause lasting family damage.
