Lifetime ISA bonus calculator UK
Calculate a Lifetime ISA government bonus and remaining contribution room. Check planned payments against the annual LISA contribution limit before adding money.
Enter your figures
Government bonus on new payment
Inputs changed. Select Calculate result to update your estimate.
2026/27 bonus illustration for an eligible LISA holder under 50 who first paid in before 40. Contributions also count towards the overall ISA limit. Does not model growth or early-withdrawal charges. Check eligibility and withdrawal rules before contributing.
How the lifetime isa bonus calculator uk works
Available contribution room = £4,000 − already contributed. Eligible new contributions attract a 25% bonus.
UK data and rules
2026/27 data · Checked 16 October 2026. Rules are a dated snapshot, not a live feed.
Read about data coverage and updates
Worked example: lifetime isa bonus
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Planned contribution this tax year (£)
- 4,000
- Already contributed this tax year (£)
- 0
Government bonus on new payment: £1,000.00
Available contribution room = £4,000 − already contributed. Eligible new contributions attract a 25% bonus.
Lifetime ISA bonus: questions answered
Does the Lifetime ISA limit sit outside the overall ISA limit?
No. LISA contributions count towards the adult ISA subscription limit as well as the separate LISA limit. This tool checks LISA room; use the ISA allowance calculator to total all adult ISA subscriptions.
Using your result
Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.
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