Savings & Investments

Lifetime ISA Calculator

See how the 25% government bonus supercharges your savings for a first home or retirement. Up to £1,000 free money per year.

Updated April 2026

Your details

Penalty-free use on first home up to £450,000

Must be 18–39 to open a Lifetime ISA

Maximum £4,000 per year. Bonus capped at £1,000/year.

Use 0% for a Cash LISA; 5-7% for a Stocks & Shares LISA

Your results

£4,000/year LISA, Buying a Home at Age 30

Final LISA value

£29,010

Government bonus

£5,000

Your contributions
£20,000
Investment growth
£4,010
Final LISA value
£29,010

Breakdown

Your contributions
£20,000 over 5 years
Government bonus (25%)
+£5,000
Investment growth at 5%
+£4,010
Final LISA value at age 30
£29,010

Year-by-year breakdown

AgeContributionBonusGrowthValue
26 £4,000 +£1,000 +£250 £5,250
27 £4,000 +£1,000 +£513 £10,763
28 £4,000 +£1,000 +£788 £16,551
29 £4,000 +£1,000 +£1,078 £22,628
30 £4,000 +£1,000 +£1,381 £29,010

Frequently asked questions

Sources & methodology

Built and maintained by Tim, a personal finance enthusiast (not a financial adviser). Last reviewed April 2026. Rates and thresholds come from official UK government publications.

Figures are estimates only. This is not financial or tax advice. For help with your specific situation, speak to HMRC or a qualified adviser.