How Much Deposit Do You Need for a Mortgage UK?.

How much deposit do you need?

Most UK mortgage lenders ask for at least 5% of the property price. On a home worth £250,000, that is £12,500 saved. A 5% deposit gives you a 95% loan-to-value mortgage (the size of the loan against the value of the property), which is about as high as most mainstream lenders will go. It is the quickest way onto the ladder, though a smaller deposit brings higher interest rates and tighter affordability checks.

A larger deposit means you borrow less, and that lowers your LTV. Lenders price their deals in LTV bands, so dropping from 95% to 90%, 85% or 80% opens up better rates at each step. For a lot of buyers, 10% to 15% is the practical target: it improves the deals on offer without asking for years of extra saving.

Reach 20% or more and you land in one of the strongest LTV bands going. Your monthly repayments fall, and you build equity, the share of the home you own outright, more quickly. The catch is the size of it: 20% on a £300,000 home is £60,000, which many buyers cannot manage without family help or a long time to save.

How your deposit affects your mortgage rate

The link between your deposit and your mortgage rate comes down to risk. The more you borrow against the value of the property, the more the lender stands to lose if things go wrong. If house prices fall, a borrower at 95% LTV can slip into negative equity, where the mortgage is larger than the home is worth, while someone at 75% LTV has a far bigger cushion.

That is why lenders set their pricing in LTV bands. A 5-year fixed rate at 90% LTV might sit around 4.5% to 5.0%, while the same deal at 75% LTV could be 3.8% to 4.2%. Spread across a 25-year mortgage, that gap adds up to tens of thousands of pounds in interest.

The biggest rate gains come in the early LTV bands. Moving from 95% to 90% saves you more than moving from 75% to 70%. So even a modest top-up to your deposit can make an outsized difference to what you pay each month.

Tips for saving a mortgage deposit

Saving a deposit takes discipline, but a few practical steps will speed it up. Start by fixing a clear target. Work out how much you need for the price range you are looking at, then split that figure into monthly savings goals you can actually hit.

A Lifetime ISA, or LISA, is one of the best accounts for first-time buyers under 40. You can pay in up to £4,000 a year, and the government adds a 25% bonus, so you get up to £1,000 of free money each year. Save the full amount for four years and that is £4,000 in bonus on its own.

Away from dedicated accounts, take an honest look at your monthly spending. Trimming non-essentials, switching your utility and subscription providers and moving even £200 to £300 a month into savings can add up to £3,600 a year. Some savers go further for a while, moving somewhere cheaper or taking on extra work to build the pot quicker.

Gifted deposits and family support

A gifted deposit is money a family member gives you, usually a parent or grandparent, to put towards buying a property. They are common in the UK, and most mainstream lenders accept them as long as a few conditions are met.

Whoever gives the gift signs a gifted deposit letter. It confirms the money is a gift rather than a loan, that they hold no stake in the property, and that they do not expect to be paid back. Lenders also ask to see where the money came from, part of the anti-money laundering checks every purchase goes through.

Some lenders want you to put in a portion of your own money alongside the gift; others accept a deposit that is 100% gifted. A mortgage adviser can point you to the lenders that are most relaxed about this.

Government schemes that help with deposits

A handful of government-backed schemes can shrink the deposit you need or help you save quicker. The Help to Buy equity loan closed to new applicants in March 2023, but several others are still open.

Shared Ownership lets you buy a share of a property, usually between 25% and 75%, and pay rent on the rest. Your deposit is a percentage of the share you buy, not the full price, so the upfront cost drops sharply. On a £250,000 home, buying a 25% share means a 5% deposit is just £3,125.

The First Homes scheme sells new-build properties to local first-time buyers at a discount of at least 30%. That discount is written into the property title and carries over to whoever buys next. Eligibility rules apply, including household income caps and, in some areas, a local connection.

The Mortgage Guarantee Scheme nudges lenders into offering 95% LTV mortgages: the government guarantees the part of the loan above 80% LTV. You do not apply for it directly. It simply widens the choice of 5% deposit products on the market.

Other costs to budget for alongside your deposit

Your deposit is the biggest upfront cost, but it is not the only one. Plenty of buyers get caught out by the extra expenses that come with a purchase. Build them into your budget from the start and you avoid a nasty surprise on completion day.

Solicitor and conveyancing fees, the legal work of transferring ownership, usually run between £1,000 and £1,800 once you include disbursements (the small costs your solicitor pays on your behalf). A homebuyer’s survey costs £300 to £600, and a full building survey on an older property can reach £500 to £1,000. Some lenders charge arrangement fees of £500 to £2,000 on their sharpest rates, though you can often add these to the mortgage balance.

Stamp duty, the tax you pay on a property purchase, is another big one for buyers in England and Northern Ireland. First-time buyers pay nothing on the first £425,000, then a reduced rate on the portion from £425,001 to £625,000. Home movers pay standard rates on anything above £250,001.