Compare ISA charges
Could you pay less for your ISA?
See if ii’s flat fee could help you keep more of what you make. Compare our ISA charges with AJ Bell, Hargreaves Lansdown and Fidelity.
Important information: As investment values can go down as well as up, you may not get back all of the money you invest. If you’re unsure if an investment account is right for you, please speak to an authorised financial adviser. Tax treatment depends on your individual circumstances and may be subject to change in the future.
Nick’s paying a transparent, lower fee
Nick found his old provider’s percentage-based fees confusing. So he started looking elsewhere for a simpler, more cost-effective platform.
“I’ve been really happy with ii’s fees. It was the predominant reason I changed. It was just obvious. I knew I was going to get charged a flat rate and that’s what I was after. That’s why I’m with ii.”
Keep more of what you make
Our low, flat fee means the more your investments grow, the more you can save. Count on a simple, transparent and convenient cost every month.
One ISA, many opportunities
Manage your own investments, leave it to the experts - or a mix of both. With the ii ISA, you have access to both self-managed and managed investment options.
Join over 500,000 investors
More and more people are choosing straightforward, flat-fee investing. It's why over 50% of our customers have trusted us with their investments for over 10 years.
See if you could pay less
See how much you could save with our flat-fee Stocks & Shares ISA compared to other ISA providers.
ii’s flat fee: £5.99 a month for ISAs up to £100,000. For values over this, it’s £14.99 a month.
Comparison disclosure: We compared yearly charges of an ii ISA with other ISA providers. Results are based on published ISA charges as at 01/02/2026 for AJ Bell & Fidelity. Hargreaves Lansdown charges based on new pricing plan effective 01/03/2026. Verified as accurate by The Lang Cat. Assumptions: 50% of ISA investments held in funds and 50% in equities, 2 equity and 2 fund trades per year, 12 regular equity and 12 regular fund trades per year. Other trading behaviours will result in different charges than those shown. This comparison covers a single year and does not account for investment growth or the impact of inflation over time. To ensure a fair comparison, fund manager charges have not been included. The information provided is for illustrative purposes only. For precise charges, we recommend contacting the ISA provider directly.
How does the ii ISA work?
Open your ISA in as little as 10 minutes. With self-managed and managed options available, there’s something to suit your financial needs.
Don’t worry, you won’t be charged until you add money and start investing in your ISA.
Put your £20,000 annual ISA allowance to work. Choose from a wide range of UK and international options. Or leave it to our experts with our Managed ISA.
Rest easy knowing that your ISA protects any growth from tax. There’s no fixed term, so you can withdraw your money when you need to, fitting flexibly around your life.
Award-winning reasons to invest with ii
Our commitment to offering high-quality, low-cost ISA investing hasn't gone unnoticed. In 2026, ii took home Boring Money’s Best Buy ISA and Value for Money awards.
