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How does the Lifetime ISA work? Key LISA rules
You can get a generous government bonus by saving money in a Lifetime ISA. We look at the perks and the pitfalls.
A Lifetime ISA (LISA) can help if you’re looking to build up a house deposit and get on the property ladder.
While there are several types of ISA, LISAs are specifically aimed at those looking to buy their first home or save for retirement.
As well as its tax wrapper, the account is an attractive option for savers because it comes with a 25% government bonus worth up to £1,000 per tax year.
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But despite this boost, LISAs have come under intense scrutiny, prompting the government to announce plans to replace it with an ISA specifically for first-time buyers from 2029.
The Lifetime ISA is a type of ISA (which stands for Individual Savings Account). An ISA is a tax-efficient way to save money as any interest and investment gains are tax-free.
The unique appeal of the Lifetime ISA is that you also get a 25% government bonus of up to £1,000 per tax year. For example, if you pay £2,000 into your LISA in a tax year, you’ll receive a £500 top-up.
To open one, you must be aged between 18 and 39. You can then pay in up to £4,000 each year until you turn 50. This money counts towards your annual ISA allowance, which is £20,000 each tax year. Like junior ISAs, you can hold cash or stocks and shares in a LISA.
The money you build up can be used to buy a first home that’s worth up to £450,000. Or, you can use the money later in life, with penalty-free withdrawals permitted once you turn 60. You can also access the account fee-free if you’re terminally ill and have less than 12 months left to live.
Previously, savers would get penalised with a 25% “unauthorised withdrawal” charge for making a withdrawal for any other reason. Not only did this take away the government bonus, but it could also eat into some of your own money too.
For example, if you had contributed £8,000 over time, your government bonus would take it to £10,000, assuming no growth. An ‘unauthorised withdrawal’ would mean you lose that bonus, plus £500 of your own savings, as 25% of £10,000 is £2,500. So, your initial £10,000 pot would become £7,500.
This withdrawal fee used to apply to those buying a property worth more than £450,000, however since 29 October 2026 the charge has been reduced from 25% to 20%.
This means those buying homes over the £450,000 threshold will lose the 20% bonus, but won’t lose any of their own money.
Clare Moffatt, pensions and tax expert at retirement firm Royal London, said: “It's good news for those living in areas where it's difficult to get a first home for under £450,000 such as in London and the South East.”
New First Time buyer ISA on the way
The government is set to consult on a new “simpler” First Time Buyer ISA to help savers get on the property ladder. It will be brought in from April 2029 and replace the existing Lifetime ISA.
The product will allow contributions of up to £4,000 per year, come with a 25% bonus and have a property cap of £450,000 like the Lifetime ISA, however, unlike the Lifetime ISA, there will be no upper age limit or withdrawal penalty.
Savers can still open a Lifetime ISA until April 2029 and save into one indefinitely.
Helen Morrissey, head of retirement analysis at investment platform Hargreaves Lansdown, said that the lack of a withdrawal penalty on the First Time Buyer ISA was a boon.
But, she warned that because it will only pay a bonus when you buy your home and not when used as a retirement product, savers will miss out on significant investment growth that would otherwise have accumulated over decades.
The mooted launch of the new ISA comes following years of criticism over the flawed design of the Lifetime ISA and calls for reform.
Why are Lifetime ISA rules unpopular?
There are a few reasons behind calls for LISA reforms – not least because the £450,000 house price cap is considered outdated.
When the Lifetime ISA first launched, the average UK house price was £220,000, according to official data from HM Land Registry. Today, average prices are £273,037, based on HM Land Registry data from August 2026 – a 24% increase. The LISA limit has never been updated to reflect the significant increase in prices.
Furthermore, regional disparities in house prices have created a sense of unfairness.
Some parts of the country have such high average house prices that first-time buyers may struggle to use their LISA funds to purchase the property they want. The average house price in London is £554,000; well above the £450,000 LISA limit. With an average house price of £380,000, a typical house in the South East is also close to the LISA limit.
Despite this, the £450,000 limit will stay the same, and at this threshold for the First Time Buyer ISA.
The First Time Buyer ISA consultation launched by the government states: “The property price cap of £450,000 on the LISA ensures that the support goes to people who need it most.”
Is the Lifetime ISA worth it?
A 25% bonus on top of your savings sounds very attractive. It’s a much higher annual rate than you would be likely to get from other forms of ISA. An increasing number of savers have been burned by the rules around withdrawals in recent years, although these have now changed.
According to the latest annual HMRC LISA statistics, published in September 2026, there was an 18% increase in the number of people making ‘unauthorised’ withdrawals in 2025/26 versus the year before. There were 154,100 people who raided their LISAs, facing a combined £118 million in withdrawal charges, or an average of £772 per person.
If you’re not likely to be able to keep the 25% government bonus, because you are hoping to buy a home for more than £450,000, you may be able to earn more on your savings elsewhere.
The key consideration is whether this savings product matches your financial goals. If you are saving for a first home, a good first step could be weighing up how much the property is likely to cost, and how secure your finances are overall. If you think you might end up not getting to keep the bonus, a different savings vehicle might be a better option for you.
Is the Lifetime ISA worth it when saving for retirement?
If you are thinking about using a LISA to save for retirement, there are even more factors to consider.
First of all, you need to weigh up whether your money could be put to better use in a traditional pension, where you can potentially benefit from employer contributions and pension tax relief.
You also need to be careful about what sort of LISA you are using. A cash LISA is not an efficient use of your money for this purpose. Given the length of your investment horizon when saving for retirement, a stocks and shares LISA is likely to be far more productive.
But LISAs can be a good option for some self-employed workers, offering a more flexible alternative to a pension. The government bonus can also help compensate them for their lack of employer pension contributions.
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Dan is a financial journalist who, prior to joining MoneyWeek, spent five years writing for OPTO, an investment magazine focused on growth and technology stocks, ETFs and thematic investing.
Before becoming a writer, Dan spent six years working in talent acquisition in the tech sector, including for credit scoring start-up ClearScore where he first developed an interest in personal finance.
Dan studied Social Anthropology and Management at Sidney Sussex College and the Judge Business School, Cambridge University. Outside finance, he also enjoys travel writing, and has edited two published travel books.
