The Bank of Mum & Dad: A Lifeline for First-Time Buyers
The “Bank of Mum and Dad” has become one of the most significant forces in the UK housing market. With property prices continuing to outpace wage growth, an increasing number of first-time buyers are turning to their parents for help getting on the ladder. Research suggests that parental contributions now support around half of all first-time buyer purchases in the UK, making the Bank of Mum and Dad one of the country’s largest mortgage lenders in all but name.
For parents who are in a position to help, the desire to see their children settle into their own home is a powerful motivator. But the way you structure that help matters enormously — both for tax purposes and for protecting everyone’s financial interests. A well-planned gifted deposit, guarantor arrangement, or family mortgage product can be the difference between your child renting indefinitely and owning a beautiful new build home.
New build homes are a particularly popular choice for first-time buyers receiving parental help. Developer incentives such as contribution to legal fees, stamp duty assistance, and deposit matching schemes can stretch parental contributions further. The chain-free nature of new builds also means fewer complications during the buying process — giving parents peace of mind that their financial support will not be wasted on a purchase that falls through.
This guide covers every way parents can help their children buy a new build home — from straightforward gifted deposits to more complex arrangements like guarantor mortgages and Joint Borrower Sole Proprietor products. We also cover the crucial tax implications that both parents and children need to understand, and the lender requirements you will need to satisfy. Whether you are a parent looking to help or a first-time buyer hoping to have that conversation, this is your complete roadmap.
Gifted Deposits: The Most Common Form of Parental Help
The most straightforward way parents help first-time buyers is by gifting money towards the deposit. A larger deposit means a lower loan-to-value (LTV) ratio, which typically unlocks better mortgage rates and increases the chances of approval. Even a relatively modest gift can make a significant difference.
How Gifted Deposits Work
A gifted deposit is a sum of money given to the buyer by a family member (usually a parent or grandparent) with no expectation of repayment. This last point is critical: if the money is a loan rather than a gift, lenders will treat it as a debt obligation, which reduces the buyer’s borrowing capacity and may lead to the mortgage application being declined.
Most lenders accept gifted deposits from immediate family members — parents, grandparents, and siblings. Some lenders have expanded this to include aunts, uncles, and even close friends, though these are less common and may face additional scrutiny.
The Gift Letter
Every lender that accepts gifted deposits will require a gift letter (also called a gifted deposit letter or gift declaration). This is a formal document signed by the person giving the gift that confirms:
- The full name and address of the person giving the gift
- Their relationship to the buyer
- The exact amount being gifted
- Confirmation that the money is a genuine gift with no expectation of repayment
- Confirmation that the giftor will have no interest or charge over the property
- The source of the funds (savings, pension lump sum, property sale, etc.)
Your solicitor will also need to carry out anti-money laundering (AML) checks on the giftor. This typically involves providing identification documents (passport or driving licence) and proof of the source of funds, such as bank statements showing the savings history or documentation of a property sale.
How Much Do Parents Typically Gift?
The amount parents contribute varies hugely depending on the property price, the family’s financial situation, and the region. Here is a breakdown of typical gifted deposit amounts:
| Property Price | 5% Deposit | 10% Deposit | 15% Deposit | Typical Parental Gift |
|---|---|---|---|---|
| £200,000 | £10,000 | £20,000 | £30,000 | £10,000–£20,000 |
| £250,000 | £12,500 | £25,000 | £37,500 | £12,000–£25,000 |
| £300,000 | £15,000 | £30,000 | £45,000 | £15,000–£30,000 |
| £350,000 | £17,500 | £35,000 | £52,500 | £17,000–£35,000 |
| £400,000 | £20,000 | £40,000 | £60,000 | £20,000–£40,000 |
Even if parents cannot fund the entire deposit, a partial gift can help buyers move from a 95% LTV mortgage to a 90% LTV product, which typically offers significantly better interest rates. Every pound counts when it comes to building your deposit.
Guarantor Mortgages and Joint Borrower Sole Proprietor (JBSP)
For parents who want to help without handing over a lump sum, guarantor and JBSP mortgages offer powerful alternatives. These products allow parents to use their income or assets to support their child’s mortgage application without taking ownership of the property.
Guarantor Mortgages
With a guarantor mortgage, a parent (or other family member) agrees to cover the mortgage payments if the buyer cannot. The guarantor does not own any share of the property and is not named on the title deed. However, they are legally liable for the mortgage payments if the buyer defaults.
Key features of guarantor mortgages:
- The guarantor’s income is assessed alongside the buyer’s, potentially allowing a larger loan
- Some guarantor products require the parent to put savings or their own property up as security
- The guarantor typically needs to be an owner-occupier with no more than one mortgage
- Once the buyer builds sufficient equity (usually when the LTV drops below 80%), the guarantee can often be released
- Guarantor mortgages do not affect the buyer’s first-time buyer stamp duty relief
Joint Borrower Sole Proprietor (JBSP) Mortgages
A JBSP mortgage is one of the most useful products for parental help. It allows up to four people to be named on the mortgage (typically the buyer plus one or both parents), but only the buyer is named on the property title. This means:
- The parent’s income is included in the affordability assessment, boosting borrowing power
- The buyer is the sole legal owner of the property
- The buyer retains their first-time buyer status for stamp duty purposes
- The parent does not own a share, so there is no additional stamp duty liability for them
- The parent is liable for mortgage payments if the buyer defaults
JBSP mortgages are offered by a growing number of lenders and are particularly popular with families buying new build homes. They allow the buyer to access a larger mortgage than they could afford alone, without the parent needing to provide a lump sum deposit.
Guarantor vs JBSP Comparison
| Feature | Guarantor Mortgage | JBSP Mortgage |
|---|---|---|
| Parent on mortgage deed | Not always (depends on product) | Yes — named as borrower |
| Parent on property title | No | No |
| Parent’s income used | Sometimes (varies by lender) | Yes — fully included |
| Security required from parent | Often (savings or property charge) | Not usually |
| Buyer keeps FTB status | Yes | Yes |
| Parent’s liability | Covers missed payments only | Jointly liable for full mortgage |
| Impact on parent’s borrowing | May affect future applications | Will affect future applications |
| Lender availability | Moderate — fewer lenders offer this | Growing — increasingly popular |
Other Ways Parents Can Help
Beyond gifted deposits and mortgage support, there are several other creative ways parents can help their children onto the property ladder.
Family Springboard Accounts
Some lenders, notably Barclays with their Family Springboard mortgage, allow a family member to place a sum (typically 10% of the property value) into a linked savings account for a set period (usually 3 to 5 years). This acts as security for the mortgage, allowing the buyer to borrow up to 100% of the property price with no deposit. After the fixed period, if all mortgage payments have been made on time, the parent gets their money back — plus interest.
Key advantages of springboard accounts:
- The parent does not lose their money — it is returned after the set period
- The parent earns interest on their savings during the term
- The buyer can purchase with no deposit of their own
- The buyer’s first-time buyer status is preserved
Lending Money (With a Formal Agreement)
Some parents prefer to lend money rather than gift it, expecting repayment over time. While this is perfectly reasonable, it creates complications with mortgage applications. Lenders will treat any loan — even from family — as a debt commitment that reduces the buyer’s borrowing capacity.
If parents do lend money, it is essential to have a formal loan agreement drawn up by a solicitor. This should specify the amount, repayment terms, interest (if any), and what happens if the buyer cannot repay. However, be aware that declaring this loan to the mortgage lender is mandatory — failing to do so constitutes mortgage fraud.
Letting the Child Live Rent-Free
One of the simplest and most tax-efficient ways parents can help is by allowing their adult child to live at home rent-free (or at a reduced rent) while they save for a deposit. A first-time buyer who does not have to pay £800 to £1,200 per month in rent can accumulate a deposit much faster, and this approach has no tax implications for either party.
Contributing to a Lifetime ISA
Parents can contribute to their child’s Lifetime ISA (LISA), which provides a 25% government bonus on savings up to £4,000 per year. A parent contributing £4,000 annually effectively gifts £5,000 (including the bonus) towards a first home. Over four years, this could build up to £20,000 towards a deposit, with £4,000 of that coming directly from the government.
Parental Help Options at a Glance
| Option | Parent Loses Money? | Tax Implications | Buyer Keeps FTB Status? | Complexity |
|---|---|---|---|---|
| Gifted deposit | Yes — permanent gift | Potential IHT if parent dies within 7 years | Yes | Low |
| Guarantor mortgage | Only if buyer defaults | None directly | Yes | Medium |
| JBSP mortgage | Only if buyer defaults | None directly | Yes | Medium |
| Springboard account | No — returned with interest | Interest is taxable income | Yes | Low |
| Family loan | Temporarily — repaid over time | Interest charged may be taxable | Yes (but reduces borrowing) | High |
| Rent-free living | Indirect cost only | None | Yes | Very low |
| LISA contributions | Yes — but gets 25% bonus | Same IHT rules as gifts | Yes | Low |
Inheritance Tax and Financial Implications
Understanding the tax implications of parental help is essential for both parents and children. The most significant consideration is inheritance tax (IHT), which can apply to gifts made during a parent’s lifetime.
The Seven-Year Rule
In the UK, gifts made during your lifetime are known as potentially exempt transfers (PETs). If the person who made the gift survives for seven years after making it, the gift falls completely outside their estate for IHT purposes. If they die within seven years, the gift may be subject to IHT on a sliding scale:
| Years Between Gift and Death | IHT Rate on Gift (Taper Relief) |
|---|---|
| 0–3 years | 40% (full rate) |
| 3–4 years | 32% |
| 4–5 years | 24% |
| 5–6 years | 16% |
| 6–7 years | 8% |
| 7+ years | 0% — fully exempt |
It is important to note that taper relief only applies if the parent’s total estate (including the gift) exceeds the nil-rate band of £325,000 (or £500,000 including the residence nil-rate band if they are leaving a home to direct descendants). For many families, the estate will be below these thresholds, meaning IHT is not a concern even if the parent dies within seven years.
Annual Gift Exemptions
Every individual can give away £3,000 per tax year completely free of IHT (the annual exemption). If you did not use last year’s allowance, you can carry it forward for one year, giving a maximum of £6,000. Both parents can each use their annual exemption, so two parents could gift up to £12,000 in a single tax year with no IHT implications at all — or £6,000 per year on an ongoing basis.
In addition, there are specific exemptions for gifts in consideration of marriage: parents can each give up to £5,000 when a child gets married, grandparents can give £2,500, and anyone else can give £1,000 — all free of IHT.
Stamp Duty Considerations
If parents are contributing to the deposit but are not named on the property title, the buyer retains their first-time buyer stamp duty relief. This is worth up to £6,250 on a £425,000 property. However, if a parent is named on the title deed as a co-owner, the purchase may not qualify for first-time buyer relief if the parent already owns property. This is one of the key advantages of JBSP mortgages and gifted deposits over joint ownership structures.
Tax-free thresholds as of 2024–2025 tax year. The nil-rate band has been frozen at £325,000 since 2009 and is expected to remain at this level until at least 2028. Always seek professional tax advice for your specific circumstances.
Lender Requirements for Parental Help
Mortgage lenders have specific requirements when parental help is involved. Understanding these in advance can prevent delays and complications during your mortgage application.
Requirements for Gifted Deposits
When a gifted deposit is declared, lenders typically require:
- A signed gift letter confirming the gift is non-repayable and the giftor has no interest in the property
- Proof of relationship between the giftor and the buyer
- Identification from the giftor (passport or driving licence)
- Proof of source of funds — bank statements showing savings, evidence of a property sale, pension documentation, etc.
- Bank statements showing the trail of funds from the giftor’s account to the buyer’s account (or confirmation that funds will be sent directly to the solicitor)
Minimum Buyer Contribution
Some lenders require the buyer to contribute a minimum amount from their own funds, even if parents are providing most of the deposit. Common minimum requirements include:
- No minimum: Some lenders accept a 100% gifted deposit (the buyer contributes £0 from their own savings)
- 5% from own funds: Some lenders require the buyer to fund at least 5% of the property price from their own savings
- Some contribution: Other lenders simply want to see evidence that the buyer has some savings, even if most of the deposit is gifted
A mortgage broker can quickly identify which lenders match your specific situation. This is particularly important if the buyer has limited personal savings and the deposit is predominantly or entirely a parental gift.
Documentation Checklist for Parental Help
Whether parents are gifting a deposit, acting as guarantor, or joining a JBSP mortgage, gathering the right documentation early speeds up the process considerably. Here is what to prepare:
- Both parents’ identification: Valid passports or driving licences
- Proof of address: Recent utility bills or bank statements for each parent
- Bank statements: 3 to 6 months of statements showing the source and accumulation of gift funds
- Gift letter: Signed and dated by each contributing parent
- For guarantors/JBSP: Payslips, P60s, tax returns, and details of existing mortgage and outgoings
- Proof of source: If funds come from a property sale, ISA withdrawal, pension, or inheritance — documentation of that transaction
Your conveyancing solicitor will also need to carry out anti-money laundering checks on anyone providing funds, so be prepared for this as part of the conveyancing process.
Having the Conversation and Protecting the Relationship
Asking parents for financial help — or offering it — can be one of the most sensitive conversations a family has. Money and property are emotional topics, and getting the approach right is important for maintaining healthy family relationships.
Tips for First-Time Buyers
- Be specific about what you need: Rather than a vague request for help, show your parents the numbers. Explain the property price, the deposit required, how much you have saved, and the gap you need to fill. This shows maturity and planning.
- Present options: Explain the different ways parents can help (gift, guarantor, JBSP, LISA contributions) so they can choose what suits their situation. Not every parent can afford a large lump sum, but they might be able to help in other ways.
- Acknowledge the sacrifice: Even if your parents are financially comfortable, recognise that giving or committing money is a significant decision for them. Express genuine gratitude.
- Be prepared for no: Not every family is in a position to help financially, and that is completely fine. There are many alternative routes to homeownership for first-time buyers.
Tips for Parents
- Only give what you can afford: Never jeopardise your own retirement security or financial stability to fund a child’s deposit. Seek independent financial advice before committing large sums.
- Be fair across siblings: If you have more than one child, consider how helping one with a deposit will be perceived by others. You may wish to make provision for equal treatment in your will or offer similar help when other children buy.
- Get legal advice: A solicitor can help structure your contribution in the most tax-efficient way and ensure proper documentation is in place.
- Consider the relationship status: If your child is buying with a partner, understand the ownership structure and what happens to your gift if the relationship ends. A declaration of trust can protect your contribution.
Frequently Asked Questions
Does a gifted deposit count as income for the buyer?
No. A gifted deposit is not treated as income for the buyer and does not need to be declared on a tax return. It is a gift, not earnings. However, it may have inheritance tax implications for the parent if they die within seven years of making the gift and their estate exceeds the nil-rate band. There is no income tax or capital gains tax for the buyer receiving a gifted deposit.
Can both parents contribute to a gifted deposit?
Yes, absolutely. Both parents can contribute, and each parent has their own £3,000 annual IHT exemption. If both parents gift £15,000 each (£30,000 total), each gift is assessed separately for IHT purposes. The lender will require a separate gift letter from each parent, and both will need to provide identification and proof of the source of their funds.
Will parental help affect my first-time buyer status?
It depends on the structure. Gifted deposits, guarantor mortgages, JBSP mortgages, and springboard accounts all preserve the buyer’s first-time buyer status for stamp duty purposes. However, if a parent is named as a co-owner on the property title and they already own property, the purchase will not qualify for first-time buyer stamp duty relief. This is why JBSP and guarantor structures are preferred over joint ownership.
Can parents help with a shared ownership purchase?
Yes. Parents can gift a deposit towards a shared ownership purchase, and the same gift letter and documentation requirements apply. The deposit is calculated on the share being purchased, not the full property value — so a smaller gift can still make a significant impact. Some shared ownership lenders also accept guarantor and JBSP arrangements, though availability is more limited.
What if my parents want the money back eventually?
If parents expect repayment, the money is a loan, not a gift. This must be declared to the mortgage lender, who will factor the repayment obligation into the buyer’s affordability assessment. Failing to declare a family loan is mortgage fraud and can result in the mortgage being recalled, criminal prosecution, and difficulties obtaining credit in the future. If the intention is repayment, have a solicitor draft a formal loan agreement and declare it fully to the lender.
A Gift That Changes Everything
Parental help can be the single most impactful factor in a first-time buyer’s journey to homeownership. Whether it is a gifted deposit that unlocks a better mortgage rate, a JBSP arrangement that boosts borrowing power, or simply the gift of rent-free living while saving, the Bank of Mum and Dad plays a vital role in the UK housing market.
The key to getting it right is proper planning. Understand the tax implications, choose the right structure for your family, get professional legal and financial advice, and make sure everything is properly documented. A few hundred pounds spent on legal advice now can protect tens of thousands in the future.
For first-time buyers exploring their options, take a look at our guides to saving for a deposit, using a Lifetime ISA, and the full range of first-time buyer schemes available. And if you are buying with a partner who is also receiving parental help, our guide to buying as a couple covers the ownership and legal considerations you will need to navigate together.
With the right support and careful planning, your new build home is closer than you think.