Family-Supported Mortgages How Your Loved Ones Can Help You Buy a Home Without a Deposit
- charlotte4256
- Feb 11
- 4 min read
Saving for a deposit remains one of the biggest challenges for many people looking to buy a home today. Rising rents, increasing living costs, and property prices that often grow faster than savings make it difficult to gather a large lump sum. Even if your income could comfortably cover mortgage repayments, the lack of a deposit can feel like a barrier that keeps you stuck. Fortunately, there are mortgage options that allow family support to replace or reduce the need for a traditional deposit. In some cases, this can mean borrowing up to 100% of the property price.
This post explains how family-supported mortgages work, the benefits and risks involved, and how you might use this option to get on the property ladder sooner.
The Challenge of Saving for a Deposit
Most lenders require buyers to have saved at least 5% to 10% of the property price as a deposit. For example, on a £250,000 home, this means saving between £12,500 and £25,000 upfront. For many people, especially first-time buyers, this can take years to accumulate.
Meanwhile, house prices and rents continue to rise. This creates a frustrating situation where:
You have a stable job and a good income
You can afford monthly mortgage repayments
But you don’t have a large lump sum saved for a deposit
This gap between income and deposit savings can delay homeownership for years.
How Family Support Can Replace a Deposit
Some lenders now offer mortgages that allow family members to provide support without permanently gifting money. Instead of giving you thousands of pounds outright, family can help in two main ways:
Option 1 – Using Savings as Security
Family members place money into a special savings account linked to your mortgage. The money remains in their name and continues to earn interest, but it acts as security for the loan. This reduces the lender’s risk and can allow you to borrow without a traditional deposit.
Option 2 – Using Property Equity
If family members own their home, they may be able to use a portion of their property’s equity as additional security for your mortgage. This means their home acts as a guarantee, helping you borrow more without needing your own deposit.
In both cases:
You may not need to provide your own deposit
Family members keep ownership of their money or property
The support is usually temporary, lasting for an agreed period
Once the mortgage risk reduces, the security is released
This is not a gift but a form of temporary support that helps you get started.

How Much Can You Borrow With Family Support?
The amount you can borrow depends on your income, credit history, and the type of family support offered. Some mortgages allow borrowing up to 95%, 98%, or even 100% of the property price when family support is involved.
For example:
A buyer with a £30,000 annual income might typically borrow around £135,000 (4.5 times income) with a 10% deposit.
With family savings used as security, the same buyer could borrow closer to £150,000 or more, reducing or eliminating the need for a deposit.
If family equity is used, borrowing limits may increase further depending on the value of the family property.
Each lender has different criteria, so it’s important to speak with a mortgage advisor who understands family-supported options.
Benefits of Family-Supported Mortgages
Faster access to homeownership: You don’t have to wait years to save a large deposit.
Keeps family money secure: Family members keep control of their savings or property.
Temporary support: The arrangement usually lasts only until you build equity or the mortgage risk lowers.
Potentially lower interest rates: Some lenders offer better rates when family security reduces their risk.
Flexibility: Family support can be tailored to your situation and the lender’s requirements.
Risks and Considerations
While family-supported mortgages offer clear advantages, there are important factors to consider:
Family financial risk: If you default on the mortgage, family savings or property equity used as security could be at risk.
Legal agreements: Clear contracts should outline the terms of support, including duration and responsibilities.
Relationship impact: Money and property can create tension; open communication is essential.
Limited availability: Not all lenders offer these products, and criteria can be strict.
Repayment ability: You still need to prove you can afford monthly repayments without strain.
Practical Steps to Explore Family-Supported Mortgages
Discuss with your family: Make sure everyone understands the risks and benefits.
Get professional advice: Speak with a mortgage broker or financial advisor experienced in family-supported mortgages.
Check lender options: Research which lenders offer these products and their specific requirements.
Prepare documentation: Income proof, credit checks, and family financial details will be needed.
Agree on terms: Draft clear legal agreements with your family to protect everyone involved.
Plan for the future: Consider how and when the family security will be released.
Real-Life Example
Sarah wanted to buy a £200,000 home but only had £5,000 saved. Her parents owned their home outright and agreed to use £30,000 of their property equity as security. With this support, Sarah secured a mortgage covering 100% of the purchase price.
Her monthly repayments fit comfortably within her budget, and the family equity was only tied up for the first five years. After that, Sarah had built enough equity to refinance without family support.
This arrangement helped Sarah buy a home much sooner than if she had waited to save a full deposit.
Family-supported mortgages offer a practical way to overcome the deposit hurdle by involving loved ones in a secure, temporary way. If you have family willing and able to help, this could be the key to moving into your own home faster. Start by having an open conversation with your family and seeking expert advice to explore your options.


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