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Earn 4.81% AER (variable) with the Plum Cash ISA (Ts&Cs and ISA rules apply).

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LIFETIME ISA CALCULATOR

Illustration showing a house and a coin, with text about taking a big step towards buying your first home. It says "You just took a big step towards your first home – A lifetime ISA makes saving for your home easier with a government bonus of up to £1,000 each year'.

A Lifetime ISA helps you get on the property ladder or save for retirement – plus, the government tops up your savings by 25%, up to £1000. Use our free Lifetime ISA Calculator to see how much you could get out of your savings.

The forecast from this Lifetime ISA Calculator is based on your input and is not a reliable indicator of future results. It will therefore not show what your investments will actually be worth.

How the Lifetime ISA works

  • Save up to £4,000 per year

  • Get a 25% government bonus (up to £1,000 extra every year!)

  • Use it for your first home (up to £450,000) 
or retirement from age 60

  • Withdrawing early? The government typically applies a 25% charge on the full amount
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Save for your dream home

Calculate how long it would take for you to save for a deposit with the help of a Plum Lifetime ISA

Calculations are based on putting the maximum of £4,000 into a Lifetime ISA per year and receiving a £1,000 (25%) bonus from the government per year. We will add this to your existing savings balance to find out how long it would take to save for a 10% deposit on a property, in an area you choose. Average property prices per area are sourced from GOV.UK.


At the moment, you can use your Lifetime ISA savings to help you buy your first home only if the property costs £450,000 or less and from 12 months after you make your first payment into a Lifetime ISA.

Enter your savings

Your dream home

Your results

Illustration of a house-shaped piggy bank with a large gold coin showing a purple pound symbol.

This Lifetime ISA Calculator is for indicative purposes only and does not constitute financial advice. Actual savings outcomes may vary. Calculations are based on how Lifetime ISAs currently operate, so putting the maximum of £4,000 into a Lifetime ISA per year would mean the saver receives a £1,000 (25%) bonus from the government per year. The tool adds the calculated Lifetime ISA savings to your existing savings balance to find out how long it would take to save for a 10% deposit on a property, in the area of your choosing. Average property prices per area sourced from GOV.UK. Please note the Lifetime ISA rules on interest and bonuses could change in the future. We do not guarantee the accuracy of the calculations or outcomes.

Why choose a Plum Lifetime ISA?

The Plum Lifetime ISA is the fast route to owning your own home because:

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Competitive interest to help you earn more on your savings

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Winner of Best App for Personal Finance 2024/25 in the Personal Finance Awards, and rated ‘Great’ on Trustpilot

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Full transparency on how Plum works

Start saving with Plum's Lifetime ISA

 Save, tax-free, towards your first home or retirement, earn a great Plum rate, 
and make the most of your 25% government bonus.

App screen showing a Lifetime ISA balance.
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You’ve got questions

We've got answers.

Plum is not a bank. Make sure a Lifetime ISA is the right choice for you. Non-eligible withdrawals will incur a 25% penalty. This means you could get back less than you originally contributed. For example, if you deposit £4,000, receive a £1,000 bonus, and then withdraw £5,000, the 25% penalty would reduce your total to £3,750 (less than your original £4,000 deposit). Tax treatment depends on your situation and may be subject to change. Rates may change so projections are not a guarantee for future value. Lifetime ISAs and the government bonus is subject to UK government rules and tax laws and may change in the future. Lifetime ISA terms and T&Cs apply.