How much deposit do I really need for a £250,000 house in the UK in 2026?

On a £250,000 UK home in April 2026 you’ll need £12,500 as an absolute minimum (5%, via the Freedom to Buy guarantee scheme or new-build Deposit Unlock), £25,000 (10%) to reach the cheapest mainstream 5-year fixes around 5.20%, and ideally £37,500 (15%) for the sharpest 85% LTV pricing near 5.15%.

What does each deposit tier actually unlock?

The deposit you put down dictates your loan-to-value (LTV — the mortgage as a percentage of the price), and LTV is the single biggest lever on your rate. At £250,000 the four realistic options look like this in April 2026:

Deposit	LTV	Typical best-buy 5-yr fix	Monthly on a 25-yr repayment
£12,500 (5%)	95%	~5.65%	~£1,485
£25,000 (10%)	90%	~5.20%	~£1,346
£37,500 (15%)	85%	~5.15%	~£1,260
£62,500 (25%)	75%	~4.55%	~£1,043

The jump from 95% to 90% is worth roughly £140 a month — over five years, that’s £8,400 back in your pocket for finding an extra £12,500.

A couple counting savings at a kitchen table with a laptop open on a property listing — At £250,000 the rate cliff between 95% and 90% LTV is about 0.45 percentage points — roughly £140 a month.

Can I really buy with just 5%?

Yes — and 2026 is the best environment for it in a decade. The Freedom to Buy scheme, made permanent in 2025, guarantees part of the lender’s loss on 95% LTV mortgages, so all the major banks are back in the market. On a £250,000 home that means £12,500 down and a £237,500 loan. For new-build flats and houses, Deposit Unlock does a similar job via a builder-funded insurance pot.

The trade-offs at 95% LTV:

Rate around 5.65% vs 5.20% at 90% — about £139/month more.
Tighter affordability — most 95% products still cap at 4.49× income.
No cashback or free legals on the sharpest deals.

If you can stretch to 10% by saving another few months or adding a LISA bonus, it’s almost always worth it. Our affordability calculator will show you the monthly numbers at each tier.

What about stamp duty and the other costs?

At £250,000, stamp duty is £2,500 for a standard buyer (2% on the slice above £125,000) and £0 for a first-time buyer — the FTB nil-rate band runs to £300,000. So your “cash to close” at 10% deposit looks like this:

Deposit: £25,000
SDLT (FTB): £0, (non-FTB): £2,500
Legal fees: ~£1,400 including searches and Land Registry
Survey (Level 2 RICS): ~£500
Mortgage arrangement/booking: £0–£1,000 depending on product

Non-FTBs should budget around £29,500 all-in; first-time buyers closer to £27,000. Use our stamp duty calculator to sanity-check your band.

Is the “average £61,000 FTB deposit” figure right?

It’s real but misleading for most of the country. UK Finance’s headline first-time-buyer deposit number includes London (where the average FTB now puts down over £130,000) and the South East. Look only at purchases in the £200k–£250k band — the modal FTB spend nationally — and the median deposit drops to around £22,000–£25,000. That’s 9–10%, right where the rate tiers start to bite in your favour.

One misconception worth clearing up

A 5% deposit doesn’t mean 5% of the asking price — it means 5% of what you actually pay. If the surveyor down-values the property to £235,000 and you still want to complete at £250,000, the lender treats the extra £15,000 as “deposit top-up” and your effective LTV rises unless you put in more cash. That’s why you shouldn’t spend your deposit to the penny; keep at least a couple of thousand back for valuation wobbles, stamp duty rounding, and the moving day you’re going to wildly underestimate.

This is information, not regulated advice — for a product recommendation, speak to a whole-of-market broker.