The Bank of Mum and Dad: how parents can support first-time buyers

In the UK, many first-time buyers rely on financial support from parents or close family to bridge the gap between saving for a deposit and meeting mortgage affordability requirements. This is often referred to as “the Bank of Mum and Dad”.

While parental support can make homeownership more achievable, it’s not a one-size-fits-all solution. The best approach depends on your household finances, the type of mortgage you’re applying for, and the long-term impact on the family’s wider plans.

This guide looks at common ways parents help, what to think about before committing, and practical steps that can reduce friction during the mortgage process. It covers family support broadly: a gift or savings-backed springboard is not joint borrowing, while a joint mortgage is only one possible route.

Related guides

• Joint mortgages for first-time buyers: shared-borrowing overview
• Joint mortgage with parents
• Joint mortgage with a friend
• Joint income mortgage affordability
• Joint Borrower Sole Proprietor (JBSP) mortgages
• Guarantor mortgages
• Gifted deposit mortgage guide
• Family springboard mortgages: savings-backed support

1) Gifting a deposit

A gifted deposit is one of the most common forms of support. Parents may give all or part of the deposit to the buyer, reducing the amount the buyer needs to borrow.

Why it can help

• Lower borrowing amount: A smaller mortgage can make affordability easier to manage.
• Potentially better loan-to-value (LTV): Reducing the loan size can improve the LTV position, which may influence the mortgage options available.

Key considerations and risks

• Inheritance tax (IHT) implications: Gifts may have IHT implications depending on timing and circumstances.
• Documentation matters: Lenders typically require evidence that the money is genuinely a gift (not repayable) and that it is transferred in a traceable way.

A careful, properly documented approach can help avoid delays caused by uncertainty over the nature of the funds.

2) Acting as a guarantor

A guarantor arrangement can be used where a parent (or another suitable person) agrees to take on responsibility if the borrower cannot meet the mortgage payments.

Why it can help

• Strengthens the application: The guarantor’s financial position may support the buyer’s ability to obtain a mortgage.
• Enables access to options: In some cases, it can help unlock mortgage routes that would otherwise be out of reach.

Key considerations and risks

• Real financial exposure: If payments are missed, the guarantor may be required to step in.
• Credit and affordability impact: A guarantor’s own finances and credit profile can be affected.
• Emotional and family pressure: The relationship can become strained if the arrangement is tested.

Before agreeing, it’s important that everyone understands the practical consequences of default, not just the intention to support.

3) Joint mortgage arrangements

Some families choose a joint mortgage, where parents and the buyer are both on the mortgage. This can be attractive when the buyer’s income alone isn’t sufficient for the desired property.

For a deeper look at joint mortgages specifically, see our joint mortgage with parents guide.

Why it can help

• Combines incomes: A larger borrowing capacity may be possible.
• Shared responsibility: Both parties are part of the mortgage structure.

Key considerations and risks

• Shared liability: Even if a parent doesn’t live in the property, they may still be responsible under the mortgage.
• Tax and legal complexity: Depending on circumstances, there can be implications when the property is sold.
• Ownership and expectations: Joint arrangements can raise questions about what happens if the relationship changes, or if the buyer later wants to remove the parent from the mortgage.

Joint arrangements often benefit from careful legal and tax consideration so that the family’s intentions are properly reflected.

4) Specialist family mortgage structures (JBSP and family springboard)

When a gifted deposit alone doesn’t solve the affordability problem, some first-time buyers look at specialist family mortgage formats. Two commonly discussed examples are JBSP-style mortgages and family springboard arrangements.

JBSP-style (Joint Borrower, Sole Proprietor) mortgages

A JBSP-style mortgage is designed to help a borrower with a lower income access a mortgage by bringing in additional income from a supporting relative. This is also sometimes described as joint borrower, sole owner (JBSO). See the JBSP mortgage guide for more detail.

How the structure typically works (varies by lender/product):

• The supporting person’s income is used to help meet the lender’s affordability assessment.
• The supporting person is often not added to the property title (so they don’t share in ownership in the same way as a co-borrower would).
• The supporting person may be liable under the mortgage, depending on the specific structure.

Why it can be attractive:

• It may allow the borrower to target a higher purchase price than their income alone would support.
• It can be used where the borrower’s deposit is available, but affordability is the limiting factor.

Typical deposit mechanics (not guaranteed):

• These products often require a meaningful deposit.
• The supporting relative may contribute toward the deposit, but the lender’s rules on deposit sourcing and documentation still apply.

Downsides and risks to consider (JBSP-style)

• The helping party may be financially exposed: because they may be liable for the mortgage, missed payments can affect them directly.
• Affordability and term constraints: mortgage terms can be limited by the supporting person’s age and existing financial commitments.
• Not suitable for every situation: these products are generally limited to certain borrower profiles and lender criteria.
• If affordability is stretched, it can be risky: if the mortgage only works on paper, the household budget may struggle later.

Family springboard mortgages

Family springboard arrangements are structured differently from gifted deposits. Instead of simply giving money to the buyer, the helper’s funds are typically placed into a linked savings arrangement that supports the purchase.

For a full guide to how these mortgages work, see family springboard mortgages for first-time buyers.

How the structure typically works (varies by lender/product):

• The buyer takes out a mortgage (often with a fixed-rate period at the start).
• The helper opens a linked savings account connected to the mortgage.
• The helper deposits a portion of the funds into the savings account.
• The buyer then purchases the property with the arrangement designed to reduce the amount of deposit the buyer needs to provide upfront.

What happens over time (varies by product):

• As long as the buyer maintains the mortgage payments, the helper’s funds are usually released back to them at the end of the fixed period (often with interest).
• After the fixed period, the mortgage typically moves onto a different rate structure, depending on the product terms.

Downsides and risks to consider (family springboard)

• The helper’s money is tied up: the helper may not be able to access those funds for a set period.
• Repayment risk affects the helper’s funds: if the buyer falls behind, the linked savings may be used to help cover arrears or other costs, depending on the arrangement.
• Product limitations: these schemes may have restrictions around property type, purchase price, and lender availability.
• Complexity: the legal and financial mechanics are more involved than a simple gift, so it’s important that everyone understands the moving parts.

5) Loaning money instead of gifting

Parents may prefer to lend money to the buyer, rather than giving it outright. This can help preserve the parent’s long-term financial position while still supporting the purchase.

Why it can help

• Maintains a repayment expectation: The buyer repays the loan under agreed terms.
• Can be structured to fit family circumstances: For example, repayment schedules can be agreed in advance.

Key considerations and risks

• Formalising the agreement: Without a clear written loan agreement, misunderstandings can arise.
• Affordability and repayment realism: The buyer’s budget needs to allow for both mortgage payments and any loan repayments.
• Relationship strain: Financial arrangements can affect family dynamics if expectations aren’t aligned.

A well-documented loan agreement can reduce uncertainty for both sides.

6) Using savings or releasing equity

Support doesn’t always have to be a deposit-only contribution. Some parents use their own savings, while others may consider accessing funds tied up in their property.

Using savings

• Direct and often straightforward: Funds can be provided without borrowing additional money.
• Opportunity cost: Withdrawing savings may affect future plans, emergency funds, or retirement goals.

Can equity release help?

Some parents consider using equity from their own home to support a child’s purchase. This is often discussed in the context of lifetime mortgages (a form of equity release).

What to understand:

• It’s not a simple “give money away” option. Equity release products can affect how much equity remains in your property.
• Repayment is typically linked to later life events. The debt is usually repaid from the property sale, which can reduce what’s left for inheritance.
• Suitability varies widely. Your ability to move, sell, or pass on value to family can be affected.

Because equity release is specialised, it’s important that the decision is made with appropriate advice and a clear understanding of the features and risks.

7) Communication and family boundaries

Regardless of the route chosen, clear communication is often the difference between a supportive arrangement and a difficult one.

Consider discussing:

• How much support is being offered and whether it’s a one-off contribution.
• Whether support is repayable (gift vs loan) and what that means in practice.
• How the deposit source will be evidenced and any legal documentation needed for a shared purchase.
• How the arrangement affects the parent’s wider finances.
• What happens if circumstances change, such as job loss, relationship breakdown, selling or moving house.
• Whether siblings will be treated similarly, to avoid resentment later.

Putting expectations in writing can help keep the arrangement fair and reduce misunderstandings.

8) Why professional input can be important

Parental support can involve more than mortgage mechanics. Depending on the arrangement, there may be implications for tax, legal ownership, and long-term financial planning.

Professional input can help families:

• understand potential tax and estate considerations
• ensure agreements are properly documented
• navigate lender requirements and reduce the risk of delays

This is especially relevant where the support involves guarantor or joint arrangements, or where equity release is being considered.

Key decisions to make before any money is handed over

1) How much support is available, and when?

Start with the practical details:

• the amount available
• when it will be provided
• whether it’s intended to cover deposit only or also purchase costs

Timing can affect your mortgage application process and your ability to move quickly once a property is found.

2) Is it a gift or a loan?

This is one of the most important clarifications. The label matters, but so does the reality of the arrangement.

• Gifted money: often used for deposit funding, but it may still have wider implications.
• Loaned money: can give the family provider more control, but it may be treated as debt in the buyer’s overall financial picture.

If the arrangement is unclear, it can create problems for both parties and may complicate the mortgage process.

3) Are there any conditions or restrictions?

Some family support comes with expectations, such as:

• the funds must be used for the deposit
• the money should not be used for other expenses
• what happens if the buyer’s circumstances change

If there are any conditions, it’s better to discuss them early and document them clearly.

4) What happens if the relationship changes?

If the buyer is purchasing with a partner (or someone else), family contributions can become sensitive if the relationship ends.

Planning for this scenario in advance can help protect the intention behind the support and reduce the risk of disputes.

5) Is there written documentation?

Not every family arrangement is documented, but when money is being lent or gifted, having clear paperwork can be valuable.

Written agreements help ensure everyone understands what was agreed and can support the buyer’s position if questions arise later.

How family support can affect a mortgage application

Mortgage lenders generally want to understand the source and nature of any deposit contribution. That means the way family support is structured can influence how the application is assessed.

In practice, helpful preparation often includes:

• ensuring the deposit source is clear
• confirming whether the arrangement is a gift or a loan
• keeping documentation consistent with what’s being claimed
• making sure the buyer’s overall monthly commitments remain affordable

A broker can help translate the family arrangement into a mortgage application approach that’s clear and well presented.

If it’s a gift: common considerations for families

A gifted deposit can be an effective way to help a first-time buyer, but it’s worth considering the bigger picture.

Inheritance Tax (IHT) and timing

Gifts may have implications for Inheritance Tax depending on how long the gift is made before death. The timing of any gift can therefore matter.

Protecting the intention behind the gift

Where the buyer is purchasing with someone else, it’s important to consider how the gift is treated if the relationship changes. Documentation such as a declaration of trust (sometimes referred to as a deed of trust) can help reflect the intended ownership position.

Practical affordability for the family provider

Before making a gift, families often benefit from checking that they can still:

• maintain their own savings and emergency funds
• support their preferred retirement plans
• manage unexpected costs

A deposit gift should not create financial strain for the person providing it.

If it’s a loan: budgeting and lender considerations

A loan from family can offer a clearer repayment expectation, but it should be treated seriously.

Repayment expectations

Even if repayments are intended to be flexible, the buyer should consider:

• what repayments could look like over time
• whether repayments would still be manageable if income changes
• whether relying on future savings is realistic

Mortgage acceptance and how lenders view it

Some lenders may have restrictions on loaned deposit funds. The exact approach can vary, so it’s important that the arrangement is aligned with what the mortgage process can accommodate.

Tax on interest (if interest is charged)

If a family member charges interest on the loan, there may be tax implications for the family provider depending on the structure of the arrangement.

When the buyer is purchasing with someone else

Family support can become more complex when more than one person is involved in the purchase.

Two common tools used to reflect contributions include:

• Declaration of trust / deed of trust: can record who the gifted funds are intended to benefit.
• Living Together Agreement: can set out details of contributions and what happens if the relationship ends.

These documents don’t replace legal advice, but they can help ensure the financial intention behind family support is properly recorded.

Gifts towards monthly mortgage payments

Some parents contribute to the buyer’s monthly outgoings to help affordability.

What lenders usually focus on:

• Whether the payments are intended to be a gift (with no repayment expectation) or a loan.
• Whether the arrangement is consistent and can be evidenced.

Practical considerations:

• Keep a clear paper trail (for example, bank statements showing regular payments).
• Be clear about how long the support is expected to continue.
• If the support is temporary, it’s helpful to understand how that may affect affordability over time.

Surplus income support

Some families support a purchase using money that comes from regular income rather than savings.

How it’s different from a lump-sum gift:

• The pattern of payments may be treated differently from a one-off transfer of capital.
• The intention behind the payments can be relevant.

What to do:

• Keep records showing the pattern of payments.
• Ensure the arrangement is understandable if the lender asks questions.

Alternatives when family support isn’t available

Family help isn’t the only way to reduce the deposit burden. Depending on circumstances, other routes may include:

Low-deposit mortgage options (where available)

Some mortgage products may allow a smaller deposit than standard options. Availability and affordability considerations still apply.

Shared ownership

Shared ownership can reduce the amount you need to borrow and may lower the deposit required by allowing you to buy a share of the property and pay rent on the remainder.

First-time buyer savings strategies

Some savings approaches are designed to help first-time buyers build a deposit more efficiently. Rules and availability can vary, so it’s important to understand the details.

Equity as security

Some parents may be able to use equity in their own property as additional security. This can increase the buyer’s borrowing capacity, but it also introduces risk for the parent’s property and requires careful consideration.

Family offset arrangements

In some cases, savings can be used to offset the mortgage balance for a defined period. The exact structure depends on lender product terms. For a full walkthrough of the mechanics, see our family offset mortgage guide.

Government-backed routes (where eligible)

Certain government-supported schemes may help reduce the deposit requirement for qualifying buyers. Eligibility, property restrictions and repayment terms can apply.

The right structure needs to work for both the buyer’s mortgage affordability and the parent’s long-term financial security. If you’d like to discuss your situation, ask our brokers about the options and documentation lenders may require.