How Much Deposit Do You Really Need to Buy a House in the UK in 2026?

What Is a Mortgage Deposit — and Why Does It Matter?

When you buy a home in the UK, you almost never pay the full purchase price in cash. Instead, you borrow most of it through a mortgage — a long-term loan secured against the property. The deposit is the portion you put in upfront, out of your own savings (or with help from family).

So if a house costs £250,000 and you put down £25,000, you are borrowing £225,000. Your deposit here is 10% of the purchase price.

Why does the size of your deposit matter so much? Because it directly affects:

• How much you need to borrow (a bigger deposit means a smaller mortgage)
• The interest rate you are offered (lenders reward lower risk with better rates)
• Whether a lender will approve you at all

The relationship between your deposit and the amount you borrow is called the Loan-to-Value ratio, or LTV. A 10% deposit gives you a 90% LTV. A 25% deposit gives you a 75% LTV. The lower your LTV, the less risk the lender takes on — and the better the mortgage deals available to you.

The Minimum Deposit in 2026: What Do You Actually Need?

The absolute minimum deposit most UK lenders accept is 5% of the property’s purchase price. This has remained the standard floor for residential mortgages.

Example: On a £200,000 property, a 5% deposit is £10,000. You would need a £190,000 mortgage (95% LTV).

At 95% LTV, you can get a mortgage — but your choices are limited, and the interest rates will be noticeably higher than for borrowers with larger deposits. In 2026, expect to pay a meaningfully higher rate at 95% LTV than at 75% or below.

Here is a rough guide to how deposit size affects your options:

Government Schemes That Can Help With Your Deposit

If saving a large deposit feels out of reach, you are not alone — and there are schemes designed to help.

Shared Ownership

Available across England, Scotland, Wales, and Northern Ireland (with some variation), Shared Ownership lets you buy a share of a property — typically between 10% and 75% — and pay rent on the rest. Because you are only buying a share, the deposit required is much smaller. You can buy more shares over time in a process called staircasing.

Mortgage Guarantee Scheme

The government’s Mortgage Guarantee Scheme has been extended into 2026. It encourages lenders to offer 95% LTV mortgages by providing a government-backed guarantee on part of the loan. This does not reduce the amount you need to borrow — you still need a 5% deposit — but it increases the number of lenders willing to offer these products.

Lifetime ISA (LISA)

If you are aged 18–39 and buying your first home, a Lifetime ISA is one of the most effective savings tools available. You can save up to £4,000 per year, and the government adds a 25% bonus on top — up to £1,000 free money per year. Funds can be used towards a deposit on a first home worth up to £450,000.

Tip: You must have held your LISA for at least 12 months before using it to buy a property. Start one as early as possible.

You can find impartial guidance on all of these schemes through MoneyHelper (moneyhelper.org.uk), the free service backed by the Money and Pensions Service.

Beyond the Deposit: Other Costs You Must Budget For

A common mistake first-time buyers make is saving only for the deposit and being caught out by the other upfront costs of buying a home. These include:

• Stamp Duty Land Tax (SDLT): A tax on property purchases in England and Northern Ireland. First-time buyers pay no SDLT on the first £425,000 of a property’s value (as of 2026 — confirm current thresholds, as these are subject to change). Scotland uses Land and Buildings Transaction Tax (LBTT) and Wales uses Land Transaction Tax (LTT).
• Solicitor or conveyancer fees: A qualified solicitor or licensed conveyancer handles the legal side of your purchase. Budget roughly £1,000–£2,000.
• Survey costs: A survey assesses the property’s condition. A basic valuation may be included by your lender, but a full structural survey can cost £500–£1,500 and is strongly advisable for older properties.
• Mortgage arrangement fees: Some mortgage deals charge a product fee, often £999–£1,999, which can sometimes be added to the loan (though this means paying interest on it).
• Removal costs, buildings insurance, and council tax deposits if renting while you complete.

As a rule of thumb, budget an additional 2–3% of the purchase price on top of your deposit to cover these costs.

How Long Does It Take to Save a Deposit?

This varies enormously depending on where you live, your income, and your outgoings. In London, average house prices remain significantly higher than in the North of England, Wales, or Northern Ireland, meaning the deposit gap is much wider.

At a 10% deposit level:

• London average property (~£520,000): Deposit needed = ~£52,000
• North East England average (~£165,000): Deposit needed = ~£16,500

Using a Lifetime ISA, a Help to Save account (for those on certain benefits), and keeping savings in a high-interest account will all help accelerate the process.

The Honest Answer

There is no single “right” deposit amount — it depends on your circumstances, the property you want, and the mortgage market at the time you apply. But as a practical guide:

• 5% is the minimum you will generally need
• 10% opens up significantly more options
• 25% or more puts you in the strongest possible position

The bigger your deposit, the less you borrow, the lower your monthly repayments, and the more you save in interest over the life of the mortgage. Even increasing your deposit from 5% to 10% can make a real difference.

If you are unsure where to start, speak to a whole-of-market mortgage broker, who can search deals from multiple lenders on your behalf. Brokers regulated by the Financial Conduct Authority (FCA) must act in your best interests.

This article is for informational purposes only and does not constitute regulated financial advice. Always seek guidance from a qualified, FCA-authorised adviser before making mortgage or property decisions.