The Lifetime ISA 25% penalty, and why it costs more than just the bonus
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A Lifetime ISA pays a generous 25% government bonus, up to £1,000 a year. Take the money out for the wrong reason, though, and the 25% penalty applies to the whole pot, bonus included — which can leave a saver with less than they put in.
A Lifetime ISA pays a 25% government bonus on savings put in to buy a first home or fund later life — but withdraw the money for any other reason and a 25% charge applies to the whole pot, bonus included, which can leave a saver with less cash than they actually paid in. That last part catches people out: the "25% penalty" is not simply the bonus being clawed back. Here is exactly how the account works, what counts as an authorised withdrawal, and the arithmetic behind why an early withdrawal costs more than it looks.
How a Lifetime ISA works
Anyone aged 18 to 39 can open a Lifetime ISA (LISA), and once it is open, contributions can continue up to age 50. The annual contribution limit is £4,000, and it counts as part of, not on top of, the overall £20,000 ISA allowance. The government adds a 25% bonus on whatever is paid in during the tax year, up to a maximum bonus of £1,000 a year on the full £4,000 contribution. Both the contribution limit and the bonus rate are set out on GOV.UK: Lifetime ISA. Money inside the account can be held as cash or invested in stocks and shares, and it grows free of both income tax and capital gains tax, in the same way as any other ISA.
| Feature | Detail |
|---|---|
| Who can open one | UK residents aged 18 to 39 |
| Annual contribution limit | £4,000 |
| Government bonus | 25%, capped at £1,000 a year |
| Contributions allowed until | Age 50 |
| Penalty-free uses | First home up to £450,000, or age 60 onward |
Using it to buy a first home
The most common reason people open a Lifetime ISA is to save toward a first home. Withdrawing the money for this purpose is penalty-free provided the account has been open at least 12 months, the buyer genuinely has no other property, the purchase uses a mortgage, and the property costs no more than £450,000 — a fixed cap that has not moved since the account was introduced in 2017. A property priced above £450,000 does not qualify for a penalty-free withdrawal at all, no matter how the excess is otherwise funded, which is worth checking early in any purchase where the price is close to the limit.
Using it from age 60
The other penalty-free route is age itself: from a saver's 60th birthday, any amount can be withdrawn from a Lifetime ISA for any purpose, with no government charge and no income tax due, regardless of whether the money is ever used to buy a home. A saver who does not buy a first home can simply leave the account invested and treat it as a retirement account, accessible from 60 — five years before the earliest private pension access age most savers currently face. A separate terminal illness rule also allows penalty-free withdrawal at any age for someone given a life expectancy of less than 12 months.
The 25% penalty on any other withdrawal
Take money out for a reason other than a qualifying first home purchase, reaching 60, or terminal illness, and it counts as an "unauthorised withdrawal." GOV.UK's guidance on withdrawing money from a Lifetime ISA is explicit about how the charge is calculated: it applies to the full amount withdrawn, including whatever government bonus has already been paid on it — not just to the original contribution. That distinction is what makes the charge more punishing than a simple "lose the bonus" rule would be.
A worked example: why the penalty costs more than the bonus
GOV.UK's own example shows the effect clearly. A saver pays in £800 and receives a £200 government bonus (25% of £800), bringing the pot to £1,000. If that saver then makes an unauthorised withdrawal of the full amount, the 25% charge applies to the entire £1,000, not just the £200 bonus:
| Step | Amount |
|---|---|
| Original contribution | £800 |
| Government bonus (25%) | £200 |
| Total in the account | £1,000 |
| Withdrawal charge (25% of £1,000) | £250 |
| Amount received back | £750 |
The saver put in £800 of their own money and gets back £750 — £50 less than they originally paid in, even before accounting for any investment growth or loss along the way. The bonus was worth £200, but the charge on the way out is £250, because it is calculated on the bonus-inclusive total rather than on the original contribution alone. That gap is exactly why the Lifetime ISA is described as having a real penalty, not merely a bonus clawback: anyone who might need the money for something other than a first home or later life is taking on a risk of losing some of their own original savings, not just the government's contribution. The compound interest calculator and the future value calculator can help estimate how a £4,000 annual contribution, plus its bonus, might grow over several years if left in place rather than withdrawn early.
Who should be cautious about opening one
The Lifetime ISA suits someone confident the money will go toward a first home under £450,000, or who is happy to leave it untouched until 60. It suits less well anyone who might need access to the money for a deposit-adjacent cost that does not count as the property purchase itself, for a property likely to cost more than £450,000, or simply as a general emergency fund — the 25% charge makes it a poor substitute for an easily accessible savings account. None of this affects the value of the bonus for a saver who does stick to the qualifying rules; it only matters for money that might need to come out early.
Sources
- GOV.UK: Lifetime ISA
- GOV.UK: Withdrawing money from your Lifetime ISA
- GOV.UK: Individual Savings Accounts (ISAs)
This is general information, not investment or tax advice. Whether a Lifetime ISA is the right way to save for a first home or for later life depends on individual circumstances, including how firm your plans are and whether you might need access to the money sooner. For a decision about your own savings, speak to a regulated financial adviser or check the rules directly on GOV.UK.