Saving for Your First Home (UK)

A 10% deposit on an average UK home is about £27,000, and you need a few thousand more on top for the costs you cannot borrow. Open a Lifetime ISA today — even with £1, because it starts a twelve-month clock — put £4,000 a year into it for the 25% government bonus, and keep the rest in the highest-paying account you can find with a fixed date attached to it. Everything below is the detail behind those three sentences: what lenders actually want, what the accounts really do, what the mortgage will cost you afterwards, and how long the whole thing honestly takes.

Chapter 1: Start with the number, not the habit

Most deposit advice starts with saving tips. That is the wrong end. Until you know the target you cannot tell whether you are three years away or eleven, and that single fact changes where the money should sit, whether you should be investing it, and whether buying is even the right plan for the next few years.

Start from real prices. The average UK house price was £271,000 in May 2026, according to the Office for National Statistics and HM Land Registry — but that average is close to meaningless for an individual buyer, because the four UK nations are not remotely the same market.

Averages across a whole nation still hide a great deal. Go to a property portal, filter to the postcodes you would genuinely live in and the number of bedrooms you actually need, and look at what things sold for rather than what they are listed at. Sold prices are public in England and Wales through HM Land Registry and in Scotland through the Registers of Scotland. That number — your postcodes, your bedrooms, recent completions — is your target. Not the national average.

Then apply a reality check. In 2025 the median home in England cost 7.6 times median full-time earnings, according to ONS housing affordability statistics; the figure for Wales was 6.0. ONS treats five times earnings as a broad affordability benchmark, so both nations sit above it, and the local spread is enormous — from 4.1 in Hyndburn and Kingston upon Hull to 25.2 in Kensington and Chelsea. If your target area sits at the wrong end of that range, no savings plan fixes it; the honest options are a different area, a smaller property, or a second income on the application.

Chapter 2: What “enough deposit” means to a lender

Lenders do not think in pounds, they think in loan-to-value: the share of the price you are borrowing. Deposit sizes cluster at 5%, 10%, 15% and 25% because those are where the rate bands step. Crossing a band is worth far more than the pound value of the extra deposit suggests.

In July 2026 the Bank of England recorded an average quoted rate of 5.07% on a two-year fix at 90% loan-to-value — the band a 10% deposit buys — against 4.79% at 75% LTV. That gap is what an extra 15% of the purchase price is worth in rate terms, and it compounds over the life of the loan rather than being a one-off.

• 5% deposit (95% LTV): gets you in. Fewest lenders, highest rates, and the thinnest cushion — a modest fall in prices puts you in negative equity, which makes remortgaging at the end of your fixed term hard.
• 10% deposit (90% LTV): the realistic first-time-buyer target. Most lenders compete here.
• 15% deposit (85% LTV): a meaningful rate improvement over 90% at most lenders.
• 25% deposit (75% LTV): effectively the top of the standard rate ladder. Going beyond it improves your rate very little, which matters when you are deciding whether to keep saving or buy now.

That last point is the one people miss. Saving past 25% mostly buys you a smaller loan rather than a better rate, so the “keep saving or buy now” question changes character once you cross it. Below 25%, every band you climb pays you twice.

Chapter 3: The Lifetime ISA, and the four rules that catch people out

A guaranteed 25% on the way in beats any savings rate on the market, which is why the Lifetime ISA is the first account a UK first-time buyer should open. GOV.UK sets the terms: you can pay in up to £4,000 a tax year and “the government will add a 25% bonus to your savings, up to a maximum of £1,000 per year”. Four years of maximum contributions is £16,000 of your money and £4,000 of the government's, before a penny of interest.

You must be 18 or over but under 40 to open one, and you can keep paying in until you are 50 — at which point, GOV.UK says, “you will not be able to pay into your Lifetime ISA or earn the 25% bonus”. The £4,000 limit counts towards your overall ISA allowance, which GOV.UK puts at £20,000 a year, so a maxed LISA leaves £16,000 of allowance for other ISAs.

Four conditions do the damage. Each one has cost real buyers real money.

1. The twelve-month clock. You can only use the money for a first home if “you buy the property at least 12 months after you make your first payment”. Not twelve months from when you started saving seriously — twelve months from your first payment. This is why the advice to open one with £1 the day you turn 18 is genuinely good, even if you have nothing to put in it yet.
2. The £450,000 cap. The property must cost £450,000 or less. There is no taper and no regional variation: London and Hull have the same ceiling. If your target area routinely trades above it, the LISA may not survive contact with your actual purchase.
3. The 25% withdrawal charge. Take money out for anything other than a first home, terminal illness, or retirement at 60 or over, and you pay a 25% charge on the amount withdrawn. Because the charge applies to the whole withdrawal rather than just the bonus, you come out behind: put in £4,000, receive £1,000 bonus, withdraw the £5,000 and the charge is £1,250 — you get £3,750 back on £4,000 paid in.
4. You need a conveyancer. The money goes from your LISA provider to your solicitor or conveyancer, not to you. Tell them early that a LISA is involved; the paperwork has its own timetable and it is a bad thing to discover a fortnight before completion.

Cash LISA or stocks and shares LISA?

Both wrappers get the same 25% bonus. The difference is what happens to the money in between.

If you expect to buy within roughly five years, a cash LISA is the sane choice: the bonus is doing the heavy lifting, and a market fall in the year you need to complete is not a risk worth taking for a marginal return. A stocks and shares LISA makes more sense the further out your purchase is, and only if you can genuinely tolerate the balance falling — a deposit fund that drops 20% eighteen months before you were planning to buy does not simply recover on your schedule. The compound interest calculator will show you what different growth assumptions do over your actual timeframe, which is a better basis for the decision than a general preference for one or the other.

Chapter 4: Where the rest of the money should sit

Beyond the £4,000 LISA limit, the deposit fund needs a home. The most common mistake is the boring one: leaving it in a current account or the easy-access account it landed in years ago.

The Bank of England publishes what UK households actually earn on their savings, and the gap is stark. New fixed-term deposits opened in June 2026 paid an average effective rate of 4.30%. The average rate paid across the whole existing stock of household instant-access balances — current accounts included — was 1.65%. That is not a best-buy versus worst-buy comparison; it is the real average paid on real balances, and the difference is roughly £660 a year on a £25,000 deposit fund.

If you already hold a Help to Buy ISA, keep it — the terms are still live. GOV.UK confirms you can pay in until November 2029 and claim the 25% bonus, capped at £3,000, until November 2030, on a home costing up to £250,000, or £450,000 in London. But you cannot use the bonus from both accounts on the same purchase, and for most buyers the LISA wins on every dimension that matters: a higher price cap, a bigger annual contribution, and a bonus that lands in the account and earns interest rather than arriving at completion.

Two practical rules for the non-LISA money

• Match the product to the date. Money you will not touch for two years can sit in a fixed-term account at a better rate. Money you might need for the survey fee next spring cannot. Splitting the fund by when you need it is worth more than chasing the single best headline rate.
• Watch the protection limit. The Financial Services Compensation Scheme protects deposits up to £120,000 per person per authorised firm, raised from £85,000 on 1 December 2025. Most deposit savers are nowhere near it, but note two things: brands sharing a banking licence count as one firm, and the FSCS covers temporary high balances of up to £1.4 million for six months after events like a house sale — which is exactly the window between exchanging on a sale and completing on a purchase.

Our guide to where to keep short-term savings in the UK goes through the account types in more detail, and the same logic applies to a deposit fund with a date on it.

Chapter 5: Stamp duty, fees, and the cash you cannot borrow

The deposit is not the bill. Several thousand pounds of costs land in the weeks around completion and none of them can be added to the mortgage, so they have to come out of the same pot you have been building.

Stamp Duty Land Tax is the big variable, and first-time buyer relief is generous but sharply bounded. HMRC sets it out plainly: no SDLT up to £300,000, 5% on the portion from £300,001 to £500,000, and — the part that catches people — “if the price is over £500,000, you cannot claim the relief.”

That is a cliff edge, not a taper. Buy at £500,000 with relief and the tax is 5% of £200,000, or £10,000. Buy at £500,001 and relief vanishes entirely, so you pay the standard bands: nothing to £125,000, 2% on the next £125,000, then 5% above £250,000 — £15,000. One pound of purchase price costs £5,000 of tax. If you are negotiating anywhere near that line, this is the single most valuable arithmetic in the transaction.

SDLT applies in England and Northern Ireland only. Scotland charges Land and Buildings Transaction Tax and Wales charges Land Transaction Tax, both with their own thresholds and their own first-time buyer treatment — check Revenue Scotland or the Welsh Revenue Authority rather than assuming the English numbers transfer.

The deposit is 85% of that total, which is why deposit advice dominates. But the remaining £4,400 is the part people forget to save, and it is the part that turns up as a credit card balance in month one of home ownership. Build it into the target from the start. Two more line items belong in the same plan: a proper emergency fund that you do not spend on the purchase, and a furnishing budget, because an empty house has a way of costing four figures in its first month.

Chapter 6: When a full deposit is out of reach

Two routes lower the bar. Both involve real trade-offs, and both are worth understanding properly rather than dismissing.

Shared ownership

You buy a share of a home and pay rent to the landlord on the rest. GOV.UK puts the share “usually between 25% and 75%”, with 10% available on some homes, and you can buy further shares later — called staircasing — paying less rent as you do. Eligibility requires household income of £80,000 a year or less, or £90,000 in London, and that you cannot afford the deposit and mortgage payments on a home meeting your needs outright.

The deposit maths is the appeal: 10% of a 25% share of a £250,000 home is £6,250, not £25,000. The catch is that you pay a mortgage and rent, usually plus a service charge, so the monthly cost is not proportionally lower — and on a leasehold flat that service charge can rise faster than anything else in your budget. Selling can also be slower, because the landlord typically has a period to find a buyer first. Model the full monthly cost, not the deposit, before deciding.

First Homes

The First Homes scheme sells designated new-build homes at a discount — GOV.UK describes buying “a home for 30% to 50% less than its market value” — for buyers earning no more than £80,000 a year before tax, or £90,000 in London. A smaller price means a smaller deposit for the same percentage.

The discount is attached to the property permanently: when you sell, you sell at the same percentage discount to another eligible buyer. That caps your capital gain and narrows your future buyer pool, which is a fair price for getting in years earlier — but it is a real cost, not a free lunch, and it deserves to be weighed as one. Availability is also local and limited, so check what actually exists in your area before building a plan around it.

Chapter 7: What the mortgage costs once you are in

Saving the deposit is the visible half. The mortgage is the part you live with for decades, and the size of your deposit shapes it.

Mortgage rates move, and they move more than people expect. The Bank of England's series for the average quoted two-year fix at 75% loan-to-value ran from 3.97% in February 2026 to 5.14% in April and back to 4.79% in July. Bank Rate itself was unchanged at 3.75% throughout — so a plan built on “rates will be roughly what they are now” is fragile even over a few months.

Two features of the July 2026 data are worth carrying into your own planning. First, the five-year fix at 75% LTV was 4.61%, cheaper than the two-year at 4.79% — the usual assumption that a shorter fix costs less did not hold, so check both rather than defaulting. Second, the average lender revert-to rate, what used to be called the standard variable rate, was 6.60%. That is what you pay if a fixed deal lapses and you do nothing, and it sat 1.81 percentage points above the average new two-year fix in the same month.

The third bar is the cheapest mistake to avoid in this entire guide. Letting a fixed deal roll onto the revert rate costs about £208 a month on this loan, for doing nothing at all. Put a calendar reminder six months before your fixed term ends, on the day you complete. Our mortgage calculator will run your own figures, and the mortgage calculator guide explains what the outputs actually mean.

Chapter 8: Building the timeline, with the arithmetic shown

Here is the calculation in full for the £250,000 flat above, target £29,400 including costs. Substitute your own numbers; the structure is what matters.

A single saver putting away £600 a month splits it: £333 into the LISA, which is £4,000 over the tax year and earns the £1,000 bonus, and £267 into a cash ISA. That credits £4,000 + £1,000 + £3,204 = £8,204 a year. Divide £29,400 by £8,204 and you get 3.6 years, or about 43 months. Interest on the non-LISA balance shaves a month or two off that; a rise in prices while you save adds it back on.

Two savers doing the same thing double every line: two LISAs at £4,000 each, two bonuses, £16,408 a year credited. The same £29,400 arrives in 22 months. That is not a small edge — it is the difference between under two years of saving and more than three and a half — which is why the partner question deserves a proper conversation rather than an assumption. Our guides to budgeting as a couple and joint versus separate accounts cover the mechanics; the couples money guide covers the harder conversations, including what happens to the deposit if you split up. Get a declaration of trust drawn up if you contribute unequal amounts. It costs a few hundred pounds and prevents the worst version of that argument.

Use the savings goal calculator to run your own version, and the guide to using it for how to handle the bonus and interest properly. The thing to avoid is the open-ended plan: “saving for a house” with no target and no date is the version people quietly abandon.

Chapter 9: Raising the saving rate without wrecking your life

Deposit saving happens over years, so the plan has to be survivable. Aggressive austerity that collapses in month five saves less than a moderate plan that runs for four years.

Housing is where the leverage is. Rent is the largest cost in most young households — the average UK private rent was £1,388 a month in June 2026, according to the ONS Price Index of Private Rents — and no amount of subscription-cancelling matches a change in your housing arrangement. Moving from a one-bedroom flat, averaging £1,127 a month, to a house share, or spending eighteen months back at a parent's with a fair contribution, can free hundreds a month. The regional spread is even larger: London averages £2,302 a month against £781 in the North East. If your work is remote and your target area is not where you rent, the arbitrage is enormous.

Below housing, the ordinary levers still matter, and they compound over a four-year horizon:

• Automate on payday. A standing order to the LISA and the savings account the morning you are paid, before anything else moves. Paying yourself first works precisely because it removes the monthly decision.
• Audit the recurring costs once. A single subscription audit and a round of bill negotiation is a few hours of work that keeps paying every month afterwards, which is a better ratio than any daily-sacrifice habit.
• Give raises to the deposit. Route pay rises and bonuses straight to the house fund before your spending adjusts to them. This is the single highest-yield habit available to most savers.
• Pick a framework and stick to it. The 50/30/20 rule or zero-based budgeting both work; the one you will still be running in year three is the right one.

Set the rate honestly. More than one in three adults in Great Britain told the ONS Opinions and Lifestyle Survey in May 2026 that they expected to be unable to save anything at all over the next twelve months. If your budget genuinely has no surplus, the answer is income or housing costs, not discipline — and it is worth saying so rather than treating it as a personal failing.

Chapter 10: Getting mortgage-ready

A perfect deposit and a messy credit file still gets you a worse rate, or no offer. This work is free and it takes months to bear fruit, so it belongs in year one of the plan rather than the fortnight before you apply.

Check all three credit files, early

You have three files, not one, and lenders do not all use the same agency. Worse, the three agencies score on completely different scales — Experian runs 0 to 1250, Equifax 0 to 1000, and TransUnion out of 710 — so comparing the numbers across them is meaningless. Ignore the score and read the underlying report: the accounts listed, the payment history, the addresses, the electoral roll entry.

Errors are common and slow to fix. The FCA's Financial Lives 2024 survey found that 10% of people who checked their credit report or score identified an error or issue — around 1.8 million adults — and that 30% of them had still not resolved it. Only about a third of people who raised a dispute with an agency received a response within a month, a figure the FCA itself flags as indicative given the small sample. Finding a problem two years out is an inconvenience; finding it two weeks before exchange is a disaster.

On card balances, use the UK guidance rather than the American rule of thumb that dominates search results. Experian UK advises keeping credit utilisation — the share of your available credit you are actually using — below 25%, not the 30% figure you will see quoted everywhere. If you need to build a file from nothing, our guide to improving a bad credit rating in the UK and the piece on strengthening a good one both go further than there is room for here.

What your bank statements say about you

Lenders read three to six months of statements and they read them properly. Regular gambling transactions, unarranged overdraft charges, returned direct debits and a pattern of borrowing to reach payday all count against you — not because of any moral judgement, but because they are evidence about affordability. The mirror image also holds: a consistent, automated transfer to savings every month is the single most persuasive thing your statements can show. It reads as exactly what it is.

Clear expensive short-term debt before you apply, both because it improves the affordability calculation and because carrying it into home ownership is miserable. If you have balances to clear first, the debt-free guide and the debt-to-income calculator are the right starting points. Note too that borrowing less can cost more, not less: in July 2026 the Bank of England recorded an average quoted rate of 12.05% on a £5,000 personal loan against 6.85% on a £10,000 one.

Employment

Lenders reward stability because it is a proxy for reliable income. Finish a probation period before applying rather than during it. If you are self-employed you will generally need two to three years of accounts or tax calculations, which effectively sets your earliest application date — worth knowing before you plan around a shorter timeline. If your income is irregular, our guide to budgeting on an irregular income covers how to present it as well as how to live on it.

Chapter 11: When this plan does not apply

Honest advice includes the cases where it fails. Several are common.

• You do not have an emergency fund yet. Buy a house with no cash buffer and the first boiler failure goes on a credit card at rates that dwarf your mortgage. Build the buffer first, keep it separate, and do not spend it on the deposit.
• You are carrying expensive debt. Clearing a balance costing over 20% beats saving at 4%, and it improves your mortgage affordability at the same time. The exception is the LISA bonus: a guaranteed 25% on the way in outruns most interest rates, so many people are better off funding the LISA and the debt payoff in parallel rather than sequentially.
• You might not stay put. Buying and selling costs several thousand pounds in fees and tax each way. Over a short horizon those costs can exceed anything you build in equity. If your job, relationship or city is genuinely uncertain over the next two or three years, renting is not a failure — it is the correct answer.
• Your target area prices out above the LISA cap. The £450,000 limit does not flex. Above it, the LISA is the wrong wrapper for the bulk of your deposit, whatever the bonus is worth.
• You are more than five years out and putting everything in cash. Over a long horizon, cash held at low rates loses purchasing power against both inflation and house prices. That is an argument for reviewing where the money sits, not for gambling a deposit you need on a fixed date.

None of this is regulated financial advice, and a mortgage broker earns their fee here — particularly if you are self-employed, have a thin credit file, or are buying with someone whose circumstances differ from yours.

The whole plan on one page

1. Today: open a Lifetime ISA with £1 if you are 18 to 39 and have never owned a home. The twelve-month clock is the one thing you cannot buy back later.
2. This week: pull sold prices for your postcodes and bedroom count. Add fees. That is your target, and it is probably not the national average.
3. This month: check all three credit reports and fix anything wrong, because it takes longer than you expect.
4. Every month: £333 to the LISA on payday, the rest to the best-rate account with a date that matches your purchase. Automate both.
5. Every year: re-price your target area and re-check your savings rates. Both move.
6. Six months out: stop opening new credit, get an agreement in principle, and tell your conveyancer early that a LISA is involved.
7. On completion day: set a calendar reminder for six months before your fixed rate ends. At an average revert rate of 6.60%, that reminder is worth about £200 a month.