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.
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
| Age | Contribution | Bonus | Growth | Value |
|---|---|---|---|---|
| 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 |
Related calculators
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.
- GOV.UK: Individual Savings Accounts · ISA allowances, types and eligibility rules
- HMRC: Lifetime ISA · LISA bonus, withdrawal rules and limits
Figures are estimates only. This is not financial or tax advice. For help with your specific situation, speak to HMRC or a qualified adviser.