ISA calculator

Try our simple calculator to see how much your ISA could be worth in the future.

The following information is missing or invalid. Please complete or correct to continue.
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1
Your regular payments
Max £1,666 per month, £20,000 per year
£
2
One-off payment
Help with One-off payment?

This is how much you are going to pay into the ISA as a lump-sum payment for this tax year only.

£
3
Choose your growth rate (%)
Help with growth rate?

This is the annual rate of growth you think you may get on your investments. The growth rate range in the calculator is set by the Financial Conduct Authority. These are not minimum or maximum rates.

View important information, assumptions and limitations