How to Save for a House Deposit UK 2026 | Step-by-Step Plan

How Much Deposit Do You Actually Need?

The minimum deposit for most mortgages is 5% of the property price. On a £250,000 home, that's £12,500. But the sweet spots are 10% (£25,000) for much better mortgage rates, and 20% (£50,000) for the best rates and lowest monthly payments. The higher your deposit as a percentage, the lower your mortgage interest rate — meaning a larger deposit saves you money every month for 25+ years. A first-time buyer with a 10% deposit instead of 5% on a £250,000 mortgage might save £80-120/month in lower interest costs.

Use the Lifetime ISA — It's Free Money

The Lifetime ISA is the most powerful tool for first-time buyers. You save up to £4,000/year and the government adds 25% — up to £1,000 free per year. Over 4-5 years, that's £4,000-5,000 in government bonuses on top of your own savings and interest. Rules: must be 18-39 to open one, property must cost £450,000 or less, you must use a mortgage. The LISA has been open for 9 years now — if you haven't opened one yet, open one today, even if you can only put in £100. The clock is ticking on eligibility.

Monthly Savings Targets by Goal

Here's how long it takes to reach various deposit targets at different monthly savings rates:

•£10,000 deposit target: £300/month = 2 years 9 months | £500/month = 1 year 8 months

•£20,000 deposit target: £300/month = 5 years 6 months | £500/month = 3 years 4 months

•£30,000 deposit target: £300/month = 8 years | £500/month = 5 years

•With LISA bonus (£4,000/year saved): Add £1,000/year to these figures and adjust accordingly

•Note: These don't include interest earned on savings. At 4-5% interest, a £500/month saver reaches £20,000 around 6 months faster.

Best Savings Accounts for Your Deposit

You want the highest possible interest on your deposit savings. Options in order of yield:

•Lifetime ISA: Cash LISA with 4-5% interest + 25% government bonus. For amounts up to £4,000/year.

•Regular saver account: Some offer 5-7% on up to £250-500/month. Lock away a set amount each month.

•Fixed-rate ISA: Lock money away for 1-2 years at 4.5-5.5%. Good for chunks you won't need.

•High-interest current account: Some banks pay 4-5% on balances up to £5,000 in a regular current account.

•Easy-access savings: Keep 3 months of your deposit here for flexibility.

How to Increase Your Savings Rate

To save for a deposit, most people need to find an extra £200-500/month. The big levers:

•Move back home: If possible, even for 1-2 years. Saving £800/month rent means £19,200 per year towards a deposit.

•Reduce rent: Moving to a cheaper area, getting a flatmate, or downsizing can free £100-300/month.

•Cut non-essentials: A structured budget review typically finds £100-200/month of cuttable spending.

•Increase income: Side income of even £200/month changes the maths significantly.

•Employer schemes: Some employers match employee savings for house deposits — check your benefits.

Government Help Available in 2026

Beyond the Lifetime ISA, check if you're eligible for:

•First Homes scheme: 30-50% discount on new-build homes for local first-time buyers and key workers.

•Shared Ownership: Buy a 25-75% share of a property, pay rent on the rest. Lower deposit required.

•Mortgage Guarantee Scheme: Allows 5% deposit mortgages on properties up to £600,000 with government backing.

•Help to Build: If you want to self-build, equity loans available.

FAQ

Should I save more or pay off student loans first?+

Student loans (Plan 2/Plan 5) don't affect your ability to get a mortgage in the same way as other debt. Lenders count the monthly repayment as an expense, not the total balance. Focus on saving your deposit while making normal student loan repayments.

Can I use gifted money as a deposit?+

Yes. Gifted deposits are common. Lenders will ask for a letter from the person gifting the money confirming it's a gift, not a loan. Most high street lenders accept them.

What's the LISA property price limit?+

£450,000. If you're buying above this amount, you can't use your LISA funds — you'd face the 25% withdrawal penalty. Plan your property price target accordingly.

How to Save for a House Deposit in the UK: Realistic 2026 Plan