Lifetime ISA Explained: The 25% Bonus, Rules and Is It Worth It?

A Lifetime ISA (or LISA) is one of the most generous savings accounts the government offers, because for every 4 you put in, it adds 1 on top, up to a set limit each year. That free top-up makes it a powerful tool for two big life goals: buying your first home and saving for retirement. But the rules are specific, and there is a penalty that can leave you with less than you paid in if you use the money for anything else. This guide explains exactly how a Lifetime ISA works, who it suits, and how to decide whether it is worth opening.

What is a Lifetime ISA?

A Lifetime ISA is a type of Individual Savings Account designed to help people aged 18 to 39 save for their first home or for later life. Like all ISAs, the money grows free of UK income tax and capital gains tax. What makes the LISA special is the government bonus: the state pays 25% on top of whatever you contribute, within annual limits.

You can pay in up to 4,000 each tax year, and the government adds a 25% bonus on those contributions, which is a maximum of 1,000 a year. The 4,000 you put in counts towards your overall annual ISA allowance of 20,000, so if you max out your LISA you have 16,000 of allowance left to use across cash ISAs, stocks and shares ISAs or innovative finance ISAs.

The key LISA rules at a glance

• Opening age: you must be 18 or over but under 40 to open a Lifetime ISA.
• Paying in: you can keep contributing and receiving the bonus until the day before your 50th birthday.
• Bonus: 25% on contributions, up to 1,000 per tax year (paid on up to 4,000 in).
• Allowed uses: buying your first home worth up to 450,000, or withdrawing from age 60 for retirement. You can also withdraw at any time if you are terminally ill with less than 12 months to live.
• Holding period: for a first-home purchase, the account must have been open for at least 12 months before you withdraw.
• Withdrawal charge: take money out for any other reason and you pay a 25% government charge on the amount withdrawn.

How the 25% bonus actually works

The bonus is the heart of the account, so it is worth understanding it clearly. The government pays 25% of what you contribute. Crucially, the bonus is calculated on your contributions, not on your total pot, and only up to the 4,000 annual limit.

The bonus is paid monthly. HMRC works it out based on the contributions your provider reports, and it usually lands in your account within four to nine weeks. Once the bonus is in your LISA, it earns interest or investment returns just like your own money, so over many years the compounding can add up significantly.

Worked example: a year of contributions

Say you pay 333 into your Lifetime ISA every month. Over 12 months that is 3,996, just under the 4,000 cap. The government adds 25%, which is 999. So you have contributed nearly 4,000 of your own money and ended the year with around 4,995 before any interest or growth.

Now stretch that over time. If you opened a LISA at 30 and paid in the full 4,000 every year until you turned 50, you would contribute 80,000 of your own money and receive 20,000 in bonuses, a 20,000 gift simply for saving in the right account, before counting any interest or investment growth on top.

Use the calculator below to see what your own contributions, bonuses and growth could look like over time.

You can also explore our full Lifetime ISA Calculator for a deeper breakdown, or our ISA Calculator if you want to plan across your whole 20,000 allowance.

Cash LISA vs stocks and shares LISA

There are two flavours of Lifetime ISA, and which one suits you depends mainly on your time horizon.

A cash Lifetime ISA works like a savings account: you earn interest and your balance never falls in nominal terms. It suits people who plan to buy a first home within the next few years, because you do not want short-term stock market dips to shrink your deposit just before you need it.

A stocks and shares Lifetime ISA invests your money in funds, shares or other assets. Over long periods (think a decade or more) investments have historically outpaced cash, but values can go down as well as up. This version tends to suit retirement saving, where you have time to ride out market ups and downs.

A practical rule of thumb: if your goal is within roughly five years, cash is usually the safer choice; if it is much further off, a stocks and shares LISA gives your bonus and contributions more room to grow.

Using a Lifetime ISA for a first home

For many people, a Lifetime ISA for a first home is the main attraction. To use it for a property purchase, all of the following must apply:

• You are a first-time buyer, meaning you have never owned a home anywhere in the world.
• The property costs 450,000 or less.
• You are buying with a mortgage (not a cash purchase).
• Your LISA has been open for at least 12 months.

If two first-time buyers each have a Lifetime ISA, you can both use them towards the same property and pool both bonuses, which can make a meaningful dent in a deposit. The money is paid directly to your conveyancer or solicitor as part of the purchase, not to you. To see how it fits into your overall deposit goal, try our House Deposit Calculator.

The withdrawal charge: the catch to understand

The Lifetime ISA comes with an important warning. If you withdraw money for any reason other than an eligible first home, reaching age 60, or terminal illness, you pay a 25% government withdrawal charge on the amount you take out.

At first glance, a 25% charge to recover a 25% bonus might sound neutral. It is not, because the charge applies to your whole withdrawal, not just the bonus. The result is that you can get back less than you originally paid in.

Here is the maths. Suppose you pay in 4,000 and receive the 1,000 bonus, giving 5,000. If you then need to withdraw the full 5,000 for an unplanned reason, the 25% charge is 1,250, leaving you with 3,750. You paid in 4,000 but walked away with 3,750, an effective loss of 250 of your own money, on top of losing the bonus. This is why a LISA should only hold money you are confident you can leave untouched until a house purchase or retirement.

Lifetime ISA vs Help to Buy ISA

The Help to Buy ISA is closed to new applicants, but some people still hold one and wonder whether to switch. The table below compares the two for context.

For most first-time buyers, the LISA is more generous because the bonus is uncapped year on year and the higher 450,000 property limit applies nationwide. The Help to Buy ISA's advantage was a lower entry barrier and no penalty for using the cash elsewhere.

Lifetime ISA vs pension: the trade-offs

The Lifetime ISA vs pension question matters for retirement saving, and there is no single right answer.

A workplace or personal pension gives tax relief at your marginal rate, so a basic-rate taxpayer effectively gets a 25% top-up and a higher-rate taxpayer gets relief worth more. If your employer matches contributions, that is free money you should rarely turn down. Pensions, however, are taxed when you draw them (beyond the tax-free lump sum).

A Lifetime ISA gives a flat 25% bonus regardless of your tax band, and withdrawals from age 60 are completely tax-free. But LISA contributions are capped at 4,000 a year, there is no employer match, and you cannot access the money penalty-free until 60, compared with the normal minimum pension age.

As a general guide: take any employer pension match first, then a LISA can be attractive for the self-employed, for basic-rate taxpayers who like tax-free withdrawals, and for younger savers who value flexibility around a first home. Higher and additional-rate taxpayers often get more from pension tax relief. This is an area where personalised advice is genuinely worthwhile.

Who a Lifetime ISA suits, and when to avoid it

A LISA tends to suit you if:

• You are a first-time buyer aiming for a home worth up to 450,000.
• You are under 40 and want a low-risk way to boost a deposit or long-term retirement pot.
• You are self-employed and have no workplace pension match to capture first.
• You can comfortably leave the money locked away until a house purchase or age 60.

Think twice if:

• You might need the money for emergencies, because the withdrawal charge can erode your own savings.
• You expect to buy a home above 450,000, as the property could become ineligible.
• You are a higher-rate taxpayer who would gain more from pension tax relief.
• You are not yet 18 or are already 40 or over, since you cannot open one.

Common mistakes to avoid

• Opening too late: if you are 39, open one even with a small amount to lock in the right to keep contributing through your 40s.
• Forgetting the 12-month rule: you cannot use it penalty-free for a home until the account is a year old, so plan ahead.
• Choosing cash for a far-off goal: for retirement, cash may struggle to keep pace with inflation over decades.
• Overlooking the property cap: if house prices push your target above 450,000, you could be stuck with the withdrawal charge.

For more on planning your full allowance, read our guide to the ISA allowance for 2026/27, and browse our other savings and ISA guides.

FAQs

Is a Lifetime ISA worth it?

For most eligible first-time buyers and disciplined long-term savers, yes, because a guaranteed 25% bonus is hard to beat. It is less attractive if you might need the cash early or expect to buy above the 450,000 property cap, since the withdrawal charge can leave you out of pocket.

How much is the Lifetime ISA bonus?

The bonus is 25% of what you contribute, up to a maximum of 1,000 each tax year, paid on contributions of up to 4,000. Pay in less and you get 25% of that smaller amount.

Can I have a LISA and another ISA in the same year?

Yes. The 4,000 you put in a LISA counts towards your 20,000 total ISA allowance, leaving 16,000 to split across cash, stocks and shares, or innovative finance ISAs in the same tax year.

What happens to my Lifetime ISA at 50 and 60?

You can pay in and earn the bonus until the day before you turn 50. After that the account stays open and continues to earn interest or investment returns, but no new bonuses are added. From 60 you can withdraw the whole pot tax-free and penalty-free for any purpose.

Can I transfer a Help to Buy ISA into a Lifetime ISA?

Yes, but transfers count towards the 4,000 LISA limit for the year, so a large Help to Buy balance may need to be moved over more than one tax year. Check the rules with your provider before transferring.

Sources

• GOV.UK: Lifetime ISA
• MoneyHelper: Lifetime ISA
• GOV.UK: Individual Savings Accounts (ISAs)

This guide is general information, not personal financial advice. For your own circumstances, speak to a qualified adviser.