What is a Lifetime ISA

A Lifetime ISA, usually shortened to LISA, is a government backed savings account designed to help people either buy their first home or save for retirement. You can pay in up to £4,000 a year, and the government adds a 25% bonus on top, worth up to £1,000 a year for free.

That bonus is the main reason the LISA has become such a popular tool for first-time buyers. Save the full £4,000 in a year and the government tops it up to £5,000. Over several years, with the bonus added monthly and growing alongside your own savings, it can make a real difference to a deposit.

The account can be used towards a first home worth up to £450,000, or accessed from age 60 for retirement. If you take money out for any other reason, a 25% withdrawal charge applies, which means you can get back less than you paid in. This is the part that catches people out, so it is worth understanding fully before you open one.

How to set one up

You can open a Lifetime ISA if you are between 18 and 39 years old, and you can keep contributing until you turn 50. There are two types available. A cash LISA works like a savings account and pays interest. A stocks and shares LISA invests your money in the market, which carries more risk but has historically offered stronger long-term growth. Which one suits you depends on how soon you plan to buy and how comfortable you are with your deposit moving in value.

Setting one up is straightforward. You apply directly with a LISA provider, usually a bank, building society or investment platform, and can normally do this online in a matter of minutes. If you already know roughly when you would like to buy, it is worth reading our guide for first-time buyers alongside this, since your deposit timeline affects how you use the LISA and how you approach the rest of the mortgage process.

One rule to flag early. The account needs to have been open for at least 12 months before you can use it towards a house purchase, so timing matters. If you think you might buy within the next year, it is worth speaking to an adviser about whether opening a LISA now still makes sense for your situation.

How it works when you come to buy

When you are ready to purchase, your LISA provider does not hand the money to you directly. Instead, the funds are released to your conveyancing solicitor, who includes them as part of the money used to complete the purchase. Your solicitor requests the funds using a special form confirming the property meets the LISA rules, including the £450,000 price cap.

If you are buying with a partner or friend who also has a LISA, you can each use your own account towards the same property, effectively doubling the bonus available to a joint purchase. Both of you need to be genuine first-time buyers for this to apply.

The government consultation to replace the LISA

It is worth knowing that change is coming. In June 2026 the government launched a consultation on a new first-time buyer ISA, intended to eventually replace the Lifetime ISA. Under the proposals, the new product would drop the retirement option entirely and focus purely on first-time buyers, remove the 25% early withdrawal penalty, and have no upper age limit for opening one, unlike the current 39 cut-off.

One detail worth noting is how the bonus might be paid. Under the proposed scheme it would likely be added as a single lump sum at the point of purchase, rather than monthly as it is now, which means savers could miss out on the compounding growth that monthly bonuses currently provide.

The replacement is not expected to arrive until April 2028 at the earliest, and only after the consultation process and any legislation that follows. If you already hold a Lifetime ISA, or open one now, there is no cut-off date. You can keep contributing and benefiting from the current monthly bonus structure for as long as the LISA exists, even after any new product launches.

Things to consider before using your LISA

A few points are worth thinking through before you rely on a LISA as part of your deposit plan.

The £450,000 property price cap has not moved since the LISA was introduced in 2017, so in some parts of the country it can rule out certain properties. Check this against the areas you are considering before you get too far into your search.

The 12 month rule means a LISA is not a quick fix if you plan to buy imminently. If your timeline is tight, other routes to your deposit may be more suitable, and this is exactly the kind of thing worth discussing with a mortgage adviser early on.

The withdrawal penalty is real and can leave you worse off than if you had simply saved the money elsewhere, so a LISA only makes sense if you are confident the funds will be used for a first home or retirement.

Finally, since change is on the way, it is sensible to keep an eye on how the consultation develops, particularly around the property price cap and how any transition for existing savers is handled.

The solicitor's role in releasing the funds

Your solicitor sits at the centre of the LISA withdrawal process. Once you have a completion date, they submit a request to your LISA provider confirming the purchase details and that the property qualifies. Providers typically need a working week or more to process this, so your solicitor will usually build this into the overall timeline of your purchase alongside your mortgage offer and exchange of contracts.

This is one of several moving parts your solicitor coordinates during a purchase, working alongside your mortgage adviser and lender to make sure funds, paperwork and dates line up for completion day. Keeping your adviser and solicitor in the loop about your LISA from the start helps avoid delays later in the process.

Quick checklist for first-time buyers using a LISA

• Confirm you are eligible (aged 18 to 39 to open, never owned a property before)

• Decide between a cash or stocks and shares LISA based on your timeline and risk appetite

• Open the account at least 12 months before you plan to complete a purchase

• Keep contributions within the £4,000 annual limit to make the most of the bonus

• Check the property you want falls within the £450,000 price cap

• Tell your solicitor and mortgage adviser about your LISA as soon as you have an offer accepted

• Avoid withdrawing for anything other than a first home or retirement to avoid the 25% charge

• Keep an eye on updates from the government consultation on the LISA's replacement

If you are weighing up a Lifetime ISA alongside the rest of your deposit and mortgage plan, our team can talk you through how it fits with your wider first-time buyer journey. Visit our first-time buyer mortgage page to see how we can help.