Junior ISA Fee Calculator
How Much Will Fees Really Cost You?
Enter your monthly investment and your child’s age to see the true cost of fees — and your projected pot — across all providers.
£
⚠ The Junior ISA allowance is £9,000/year — maximum £750/month. Contributions above this are not permitted.
I understand: This calculator provides an illustration only and does not predict actual returns. Investment values can go down as well as up — your child could get back less than you put in. Fees shown are estimates based on current provider information and may change over time.
Please tick the box above before calculating.
Your Results — Cheapest First
Important: These figures are for illustrative purposes only and do not constitute financial advice. Actual returns will vary depending on market performance, fund selection, and fee changes over time. Past performance is not a guide to future performance. FX (foreign exchange) fees are not included as they only apply when purchasing foreign currency assets and will vary by investor. Additional fees may apply — including fund AMC charges — always check each provider’s website for their full, up-to-date fee schedule before investing. If you are unsure whether an investment is right for you, please seek advice from an FCA-authorised financial adviser. The value of investments can go down as well as up. Capital at risk.
Affiliate disclosure: We may earn a commission if you open an account via a link on this page. This does not affect our rankings or the fees shown — all calculations are based on publicly available provider information.
Affiliate disclosure: We may earn a commission if you open an account via a link on this page. This does not affect our rankings or the fees shown — all calculations are based on publicly available provider information.