Lifetime ISA Explained: The 25% Bonus, Rules and the Penalty Trap

The Lifetime ISA, explained in one line, is a government top-up scheme: pay in, get a 25% bonus, and use the money for a first home or your retirement. It is one of the best-value accounts in UK personal finance if you fit its rules, and one of the most expensive if you do not, because taking the money out early costs you more than the bonus you were given. This guide covers how it works, the numbers that matter, the penalty trap, and the reform that means anyone thinking about opening one now needs to read the small print first.

How the Lifetime ISA works

A Lifetime ISA (LISA) is available to UK residents aged 18 to 39. You can pay in up to £4,000 each tax year, and the government adds a 25% bonus on top, worth up to £1,000 a year. The bonus is paid monthly, so it starts earning returns or interest sooner than an annual top-up would.

Two rules define the account. You can keep paying in and receiving the bonus until you turn 50. And the £4,000 you contribute counts towards your overall £20,000 annual ISA allowance, so it is not extra room on top; it comes out of the same pot as your other ISAs. If you want the wider picture on how the allowance splits, see our guide to the ISA allowance for 2026 and our overview of ISAs explained.

What you can spend it on without a penalty

There are exactly two ways to take the money out and keep the bonus:

• Buying your first home. The property must cost £450,000 or less, you must be a genuine first-time buyer, and the LISA must have been open for at least 12 months before you use it. The money goes to your solicitor as part of the purchase.
• Reaching age 60. From your 60th birthday you can withdraw the whole pot, bonus included, for any reason at all.

There is also a third penalty-free route nobody wants to use: withdrawal if you are terminally ill. Anything else counts as an unauthorised withdrawal, and that is where the trap sits.

The penalty trap, with the maths

Take money out for any other reason and you pay a 25% government withdrawal charge on the amount you withdraw. It sounds like it just claws back the 25% bonus, but it does not, and this is the single most misunderstood thing about the account.

Here is why. Say you pay in £4,000 and get the £1,000 bonus, giving you £5,000. If you then withdraw it early, the 25% charge is £1,250, leaving you with £3,750. You put in £4,000 of your own money and got £3,750 back. You have lost £250, which is 6.25% of your own savings, on top of losing the entire bonus. The charge is 25% of the total pot, not 25% of the bonus, and because the bonus is only a fifth of the balance, the difference falls on you.

The practical lesson: only put money in a LISA that you are confident is going towards a first home or retirement. It is a brilliant account for a committed goal and a poor one for money you might need for anything else.

Cash LISA or stocks and shares LISA?

You can hold a LISA in cash, like a savings account, or as stocks and shares, holding investments. The right choice is about time.

If you plan to buy your first home within roughly the next five years, a cash LISA is usually the sensible pick: you get the bonus without the risk that a market dip lands just as you are ready to buy. If your goal is retirement decades away, a stocks and shares LISA gives your money time to grow and historically beats cash over long periods, though it can fall in value along the way. Our guide to cash ISAs versus stocks and shares ISAs explains the trade-off in more detail; the same logic applies inside a LISA.

The reform you must know about before opening one

At the Autumn Budget 2025 the government announced plans to replace the Lifetime ISA with a simpler first-time buyer ISA, and it launched a consultation on the design in June 2026. The new product is expected from around April 2028. Based on the consultation, it would likely be open to anyone over 18, be for buying a first home only (dropping the retirement use), and pay the government bonus at the point you buy rather than into your account as you save, which removes the need for a withdrawal penalty.

Crucially for anyone deciding now: if you already have a Lifetime ISA, you can keep contributing to it. The government has also said it will look at the £450,000 property price cap, which has not moved since the LISA launched, as part of the 2026 consultation, though no increase is confirmed. None of this is a reason to avoid a LISA if it suits you today, but it is a reason to open one sooner rather than later if you are close to the 40 age limit, and to keep an eye on the outcome of the consultation.

You can check the official current rules on the government’s Lifetime ISA page before you commit.

Who should open a Lifetime ISA?

A LISA is an easy win for a first-time buyer under 40 who is saving for a home costing £450,000 or less and is confident they will buy: the 25% bonus is free money you will not get from an ordinary savings account. It also suits younger savers who want an extra, tax-free retirement pot alongside a pension, as long as they can leave the money untouched until 60.

It is the wrong account if you might need the money for something else, if you are close to buying a home above the price cap, or if your workplace pension match is still unused, because an employer match usually beats the LISA bonus pound for pound. Get the free pension money first, then consider a LISA.

Frequently asked questions

How much bonus do you get with a Lifetime ISA? The government adds 25% on top of what you pay in, up to a maximum of £1,000 a year. You can contribute up to £4,000 each tax year, so the most bonus you can earn is £1,000 annually, paid monthly. The bonus counts as part of your pot for growth or interest.

What is the Lifetime ISA withdrawal penalty? If you take money out for anything other than a first home, reaching age 60, or terminal illness, you pay a 25% government charge on the amount withdrawn. Because that charge applies to your whole pot, not just the bonus, you lose the bonus plus about 6.25% of your own contributions.

Can I use a Lifetime ISA to buy any first home? Only if the property costs £450,000 or less, you are a first-time buyer, and the LISA has been open for at least 12 months. Buy above £450,000 and using the LISA counts as an unauthorised withdrawal, so you pay the penalty. The cap is under government review in 2026 but has not changed.

Is the Lifetime ISA being scrapped? The government announced at the Autumn Budget 2025 that it plans to replace the LISA with a first-time buyer ISA from around April 2028, and consulted on the design in 2026. Existing LISA holders can keep contributing, so opening one now is still worthwhile if it fits your goals.

Lifetime ISA or pension for retirement? For most employed people, a workplace pension wins first because of the employer match and tax relief, especially for higher-rate taxpayers. A stocks and shares LISA can be a useful extra pot, particularly for the self-employed or basic-rate taxpayers who want tax-free access from 60, but use any employer pension match before funding a LISA.

Can I have both a cash LISA and a stocks and shares LISA? You can hold different LISA types, but you can only pay new money into one Lifetime ISA in a single tax year, and total LISA contributions are capped at £4,000 across the year. You can transfer an existing LISA between cash and stocks and shares providers without losing the bonus.