Lifetime ISA guide for UK first-time buyers: the 25% bonus explained

The Lifetime ISA (LISA) is one of the most generous government savings incentives available to UK adults. For first-time buyers and retirement savers aged 18–39, it offers a 25% bonus on every pound saved — up to £1,000 free money per year. Despite this, millions of eligible savers haven't opened one. If you're planning to buy your first home in the next few years, the LISA should be a core part of your savings strategy. The government consulted from June to August 2026 on replacing it with a new First Time Buyer ISA, but no launch date or final rules have been confirmed, and you can still open and pay into a LISA.

You can save up to £4,000 per year into a Lifetime ISA. The government adds a 25% bonus on top of everything you save, paid monthly into the account. Save the maximum £4,000 and you receive £1,000 in bonus funds. Over five years of maximum contributions, that's £5,000 in free government money on top of your own savings and any interest earned. The bonus is applied to your contributions, not your total balance, so it doesn't compound on itself — but it's still extraordinary value.

To open a LISA, you must be between 18 and 39 years old. You must be a UK resident. You don't need to be actively buying right now — you can open one years before you're ready to buy and let it grow. Once opened, you can contribute until age 50. The home you buy must cost no more than £450,000, you must be a first-time buyer, and you must use a solicitor or conveyancer for the purchase. You cannot use a LISA to buy a buy-to-let property.

A Cash Lifetime ISA works like a savings account — your money is safe but grows at the account's interest rate. A Stocks and Shares LISA invests your money in funds or shares, with potential for higher long-term growth but with investment risk. For home buying in the next one to three years, a Cash LISA is safer — you don't want market volatility affecting your deposit right before you need it. For buying in five-plus years or for retirement, a Stocks and Shares LISA gives your bonus more room to grow.

The 2026/27 tax year ends on 5 April 2027. Any LISA contributions made before that date count toward this year's £4,000 limit. If you have cash available that you haven't contributed yet, putting it in before the deadline means you receive the bonus on those contributions within weeks. Missing the deadline means waiting until 6 April and using next year's allowance — losing up to £1,000 in bonus money that could have been received this year.

The LISA has a significant catch: if you withdraw the money for any reason other than buying your first home, reaching age 60, or terminal illness, you pay a 25% withdrawal penalty. This effectively takes back the government bonus plus a portion of your own savings. The penalty is designed to prevent people using the LISA as a regular savings account — it's a long-term commitment. Make sure the money you put in is genuinely earmarked for a first home or retirement before opening one.

Several UK providers offer Cash LISAs: Moneybox, Paragon, Beehive Money, and Nottingham Building Society among others. Stocks and Shares LISAs are available from Hargreaves Lansdown, AJ Bell, Moneybox, and others. Compare rates and fees before choosing. A Cash LISA with a competitive rate and no fees beats one with a higher headline rate that charges monthly fees on balances. Opening takes 15–20 minutes online and your contribution lands before the April deadline.