The Lifetime ISA Bonus Sounds Free Until You Read the Withdrawal Rules
The government adds 25% to what you save in a LISA, then takes more than that back if you touch the money for the wrong reason.
By Firoz Khan|29 August 2026|Updated 20 September 2026|9 min read
A Lifetime ISA gets marketed as one of the most generous accounts in UK personal finance, and on paper it is: put in money, the government adds a quarter more on top, no strings attached. Except there are strings, and they're tight enough that plenty of people who open a LISA end up paying an exit penalty that costs them more than the bonus was ever worth. Providers aren't required to make that maths obvious at the point you open the account. Here's exactly how the LISA works, where the 25% penalty trap actually bites, and who this account is and isn't built for.
Who can actually open one
You have to be between 18 and 39 years old to open a Lifetime ISA, and once it's open you can keep contributing until you turn 50, with the government bonus paid until then too. This age window is the first thing that catches people out: if you're 40 or older, you simply can't open one, no matter how much you'd benefit from it. If you open one at 38, you get roughly a decade of bonus contributions before the account stops accepting new money, though it keeps growing and stays accessible penalty-free from age 60 regardless.
The £4,000 limit inside the £20,000 allowance
You can put up to £4,000 a year into a Lifetime ISA, and that £4,000 counts as part of your overall £20,000 annual ISA allowance, not on top of it. So if you max out your LISA, you have £16,000 left across any Cash ISA or Stocks and Shares ISA you also hold. Put in less than £4,000 in a tax year and you simply get a smaller bonus that year, there's no penalty for underfunding it, only for taking money out for the wrong reason.
How the 25% bonus actually works
The government adds 25% to whatever you contribute, paid monthly into the account (some providers pay annually). Contribute the full £4,000 in a tax year and you get a £1,000 bonus, taking your total to £5,000 before any investment growth or interest. That's the maximum bonus available: £1,000 a year, or £33,000 over the roughly 33 years someone could theoretically contribute from 18 to 50 if the limit and rules stayed unchanged, which is a genuinely large amount of free government money if the account is used correctly.
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The two approved uses: first home or age 60
You can withdraw LISA money penalty-free in exactly two situations: to buy your first home worth up to £450,000, or from age 60 onwards for any reason, including retirement income. The account can also be accessed penalty-free if you're diagnosed with a terminal illness. Outside of those, any withdrawal counts as an unauthorised withdrawal and triggers the penalty, which applies just as much to someone withdrawing at 35 for a car as it does to someone withdrawing at 45 in a financial emergency.
The 25% withdrawal penalty, worked through with real numbers
If you withdraw for an unauthorised reason, the government charges a 25% penalty on the total amount withdrawn, including your own contributions, not just the bonus. This is the part that catches people out, because 25% off the total is actually more than the 25% bonus you received on your contributions alone.
Say you put in £4,000 and received the full £1,000 bonus, giving you £5,000. Withdraw that £5,000 for an unapproved reason and the 25% penalty is calculated on the full £5,000, which is £1,250. You're left with £3,750, which is £250 less than the £4,000 you originally put in. You don't just lose the bonus, you lose part of your own money on top of it. This penalty was temporarily reduced to 20% during the pandemic and has since returned to 25%.
How it interacts with Help to Buy
You can't pay into both a Help to Buy ISA and a LISA in the same tax year, though you can hold both accounts and choose which one to fund. If you already have a Help to Buy ISA, you can transfer its balance into a LISA, but the Help to Buy ISA itself stopped accepting new accounts back in November 2019, so this only applies to people who opened one before then. For most first-time buyers today, the LISA is simply the current version of this type of government-boosted house deposit scheme, with a higher property price cap (£450,000 versus Help to Buy's regional limits) and a bigger effective bonus rate.
Who should and shouldn't use a LISA
It suits two fairly specific groups well: someone under 40 saving for a first home who's confident they'll buy within the price cap, and someone building long-term retirement savings alongside a workplace pension who wants the flexibility of ISA-style access from 60 rather than 55 or 57. It suits fewer people than the marketing suggests. If there's a real chance you'll need the money before a house purchase or before 60, if your first home might cost more than £450,000, or if you're weighing it against a workplace pension with an employer match, the LISA usually isn't the first place your money should go. The bonus is genuinely valuable, but only if the money stays put for its intended purpose.
A reminder
The FCA risk warning still applies to higher-risk crypto content. Always assess how much risk you are willing to take before buying.
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