LISA Mathsthe bonus, the charge, and the cap

£3,600 a year into a Lifetime ISA

Paying £3,600 a year into a Lifetime ISA earns a government bonus of £900 a year, and leaves £400 of the £4,000 LISA limit unused.

£900 government bonus a year on £3,600 paid in · £300.00 a month

Paying £3,600 a year, year by year

YearsYou paid in BonusIn the account
1£3,600£900£4,500
2£7,200£1,800£9,000
3£10,800£2,700£13,500
4£14,400£3,600£18,000
5£18,000£4,500£22,500
6£21,600£5,400£27,000
7£25,200£6,300£31,500
8£28,800£7,200£36,000
9£32,400£8,100£40,500
10£36,000£9,000£45,000

No investment return is assumed anywhere on this page. Every figure is money you paid in plus the government bonus — the only part that is guaranteed. A stocks-and-shares LISA can do better or worse than this, and nobody can tell you which.

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What it costs your ISA allowance

£3,600 of the £20,000 allowance, leaving £16,400 for every other ISA put together. Announced at Autumn Budget 2025: from 6 April 2027 the cash ISA allowance falls to £12,000 for savers under 65, while the overall £20,000 ISA allowance is unchanged — the balance must go into stocks and shares or innovative finance ISAs. See the 2027 change.

Questions

How much bonus do I get on £3,600 a year?

£900. The bonus is 25% of what you pay in, up to £4,000 a year, so the most anyone can earn is £1,000 a year.

When does the bonus actually arrive?

Your provider claims it monthly on what you paid in that month, and HMRC pays it into the account afterwards — commonly four to nine weeks later. The tables above show it in the year you earned it, not the day it lands.

Does £3,600 use up my ISA allowance?

Yes. LISA payments count toward the same £20,000 ISA allowance as every other ISA, so £3,600 into a LISA leaves £16,400 for cash, stocks-and-shares and innovative finance ISAs combined. The bonus itself does not use any allowance.

What if I want the money for something else?

Taking it out before 60 for anything other than a first home costs 25% of the withdrawal, which is 6.25% of your own money — more than the bonus was worth. There is a page for that: what an early withdrawal costs.

Related

Rates and limits read 19 August 2026 from GOV.UK: Lifetime ISA, withdrawing money and ISA allowances. Figures are for the 2026/27 tax year.

Rates and limits for the 2026/27 tax year, read 19 August 2026 from GOV.UK. Nothing here is financial advice: it is arithmetic on published rules, and no investment return is assumed anywhere.