Interactive Brokers Stock ISA
Broker focused on low dealing costs, with fewer extra services.
Published fee schedule
As used by the calculator. Data last updated 8th October 2026, from the official pages listed below.
Where these figures come from
How the cost changes with portfolio size
Estimated yearly cost for 12 trades a year of about £2,000, half shares, half UK ETFs, half of the shares in the US. With this platform the estimate stays the same as the portfolio grows.
| Portfolio | Platform fee | Dealing | FX | Total a year | Of portfolio |
|---|---|---|---|---|---|
| £10,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.36% |
| £25,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.14% |
| £50,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.07% |
| £100,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.04% |
| £250,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.01% |
| £500,000 | £4.92 | £29.28 | £1.80 | £36.00 | 0.01% |
If you hold funds
Estimated yearly cost for 12 trades a year of about £2,000, all funds. Fund fees can work differently from shares and ETFs. With this platform the estimate stays the same as the portfolio grows.
| Portfolio | Platform fee | Dealing | FX | Total a year | Of portfolio |
|---|---|---|---|---|---|
| £10,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.59% |
| £25,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.24% |
| £50,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.12% |
| £100,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.06% |
| £250,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.02% |
| £500,000 | £0.00 | £59.40 | £0.00 | £59.40 | 0.01% |
Estimates only, from published fees. Use the calculator for your own numbers.
Things to know
- US shares cost US$0.005 a share, minimum US$1 and maximum 1% of the trade. We use the US$1 minimum (about £0.76 at the ECB rate), which covers most trades; large orders in low-priced shares cost more. European shares cost from €3 a trade. Some funds can be traded free.
- The platform fee is a monthly minimum that is reduced by what you spend on dealing and FX, so active investors may pay no platform fee.
- Some no-transaction-fee funds can be traded free.
Questions about Interactive Brokers
How much does Interactive Brokers Stock ISA charge?
Platform fee: £3 monthly (reduced by activity). Share and ETF dealing: Market-based tiers: UK under £6,000: £3; UK over £6,000: 0.05%. Fund dealing: £4.95 per trade. These are taken from Interactive Brokers' published charges and may change, so check with Interactive Brokers before you decide.
Does Interactive Brokers Stock ISA charge FX fees?
Yes, when you buy investments priced in another currency: 0.03%.
Can I buy US shares with Interactive Brokers Stock ISA?
Yes. Interactive Brokers Stock ISA lets you buy shares priced in dollars, so FX fees apply.
Can I hold funds in Interactive Brokers Stock ISA?
Yes, Interactive Brokers Stock ISA supports mutual funds.
Is Interactive Brokers Stock ISA a flexible ISA?
Yes. You can withdraw money and pay it back in within the same tax year without it counting towards your allowance again.
Does Interactive Brokers Stock ISA offer fractional shares?
No. You buy whole shares or ETF units.
How are trades placed on Interactive Brokers Stock ISA?
Direct Market Access.
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