Interactive Brokers vs Interactive Investor Core
Side-by-side comparison from each platform's published fees.
Interactive BrokersStock ISA | Interactive InvestorStock ISA Core | |
|---|---|---|
| Estimated yearly costexample investor | £36.00 | £164.76 |
| Fees | ||
| Platform fee | Whole portfolio | Whole portfolio |
| Dealing | Shares and ETFs Mutual funds US shares and ETFs | Shares and ETFs Mutual funds US shares and ETFs |
| FX | ||
| How trades are placed | Direct Market Access | Quote & Deal |
| What it can hold | ||
| UK investments | Supported | Supported |
| US shares | Supported | Supported |
| Individual shares | Supported | Supported |
| Exchange-traded funds (ETFs) | Supported | Supported |
| Mutual funds | Supported | Supported |
| Flexible ISA | Supported | Not supported |
| Fractional trading | Not supported | Not supported |
| About the providers | ||
| Official website | Visit Interactive Brokers website | Visit Interactive Investor website |
| Founded | 2000 (26 years old) | 1987 (39 years old) |
Example investor: £80,000 portfolio, 12 trades a year, half in shares (half of them US) and half in UK ETFs. Estimate with your numbers
Important notice. The information shown on this page is sourced from provider websites and is for illustrative purposes only. It may be inaccurate, outdated, or not account for all scenarios, promotions, discounts, or variations in fees due to specific circumstances. Always check the provider's official website for the most up-to-date and accurate information. These figures are general estimates and should not be considered as financial advice. Data updated 8th October 2026.
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Interactive Brokers Stock ISA
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Use our illustrative calculator to estimate platform fees based on how you invest. Not financial advice.