📋 In this guide
Minimum Deposit Requirements in 2026
The minimum deposit for most UK mortgages is 5% of the purchase price. On a £250,000 property that's £12,500. However, the minimum and the optimal are very different numbers.
- £200,000 property → 5% = £10,000 minimum / 10% = £20,000 recommended
- £250,000 property → 5% = £12,500 minimum / 10% = £25,000 recommended
- £300,000 property → 5% = £15,000 minimum / 10% = £30,000 recommended
- £350,000 property → 5% = £17,500 minimum / 10% = £35,000 recommended
- £400,000 property → 5% = £20,000 minimum / 10% = £40,000 recommended
What Is LTV and Why Does It Matter?
LTV stands for Loan-to-Value — it's the size of your mortgage expressed as a percentage of the property's value. If you buy a £200,000 home with a £20,000 deposit (10%), your mortgage is £180,000 — that's a 90% LTV.
LTV is the single most important number in mortgage pricing. The lower your LTV (meaning the bigger your deposit), the less risk the lender is taking — and the better interest rate they'll offer you.
LTV tiers that unlock better rates
- 95% LTV (5% deposit) — Limited lenders, highest rates, often requires government guarantee scheme
- 90% LTV (10% deposit) — Significantly wider choice, noticeably better rates
- 85% LTV (15% deposit) — Good range of competitive deals
- 80% LTV (20% deposit) — Strong rates from most high street lenders
- 75% LTV (25% deposit) — Best mainstream rates available
- 60% LTV (40% deposit) — Very best rates on the market
How Your Deposit Size Affects Your Rate
The difference between a 5% and 10% deposit is not just the amount you save — it can mean paying hundreds of pounds less per month on your mortgage for years.
As a rough illustration on a £250,000 property over 25 years:
- 5% deposit (95% LTV) — you might pay around 5.5–6% interest
- 10% deposit (90% LTV) — rates typically 0.5–1% lower
- 25% deposit (75% LTV) — rates typically 1–1.5% lower than 95% LTV
How to Save Your Deposit Faster
- Open a Lifetime ISA (LISA) — government adds 25% on top of up to £4,000/year. That's up to £1,000 free per year.
- Set up a dedicated savings account — separate from your current account so you don't accidentally spend it
- Use the Help to Save scheme — if you receive Universal Credit or Working Tax Credit, you may qualify for a 50p bonus per £1 saved
- Review direct debits and subscriptions — the average UK adult has 7 active subscriptions they've forgotten about
- Consider shared ownership — lets you buy a share of a property (25–75%) with a smaller deposit on the share, not the full price
The Lifetime ISA — Don't Overlook This
If you're between 18 and 39, a Lifetime ISA is one of the most powerful savings tools available to first-time buyers. You can save up to £4,000 per year and the government adds a 25% bonus — up to £1,000 free per year.
On a property costing up to £450,000, the LISA funds can be used directly toward your deposit at completion. The money must have been in the LISA for at least 12 months before you can use it.
- Open between ages 18–39
- Save up to £4,000/year, government adds 25%
- Maximum government bonus: £1,000/year, £33,000 lifetime
- Property price limit: £450,000
- Must be a first-time buyer
- Withdrawal penalty if used for anything other than home purchase or retirement: 25% (which effectively takes back the bonus plus a small amount of your own savings)
Using a Gifted Deposit
Many first-time buyers receive financial help from family — often called a "gifted deposit." This is completely legal and widely accepted by lenders, but there are rules:
- The gift must be genuine — not a loan that needs repaying
- The person giving the gift (usually parents) must sign a gifted deposit letter confirming it doesn't need to be repaid
- Lenders will ask for this letter as part of your mortgage application
- The donor may need to show where the funds came from (anti-money laundering checks)
- There may be inheritance tax implications if the donor dies within 7 years — worth checking with a solicitor