interactive investor vs Fidelity International: which is better in 2026?
Point-by-point comparison
| Category | interactive investor | Fidelity International | Winner |
|---|---|---|---|
| Tax wrapper | ISA / SIPP tax wrapper | ISA / SIPP tax wrapper | Draw |
| Fees | £3.99/trade + monthly fee | £7.50/trade (shares) | Draw |
| Regular investing | Free on eligible funds/ETFs | £1.50/trade, funds free | Fidelity International |
| Platform | 8/10 | 8/10 | Draw |
| Market coverage | 8/10 | 8/10 | Draw |
| Customer support | 8/10 | 8/10 | Draw |
The verdict
Overall, Fidelity International comes out slightly ahead in this comparison, but the difference depends heavily on what you're looking for: check the table above to see which criterion matters most for you.
Why choose interactive investor
- Flat monthly fee, ideal for medium-to-large portfolios where percentage fees would cost more
- £3.99 dealing fee, lower than Hargreaves Lansdown's £6.95
- ISA, SIPP and Trading Account can sit under one subscription
- Family plans allow multiple accounts under a single fee
Why choose Fidelity International
- Free fund dealing — buy, sell and switch funds at zero cost
- £90/year cap on ETF and share fees in an ISA or SIPP, among the most competitive for growing ETF portfolios
- No service fee at all on Junior ISA, Junior SIPP, or GIA exchange-traded holdings
- SIPP named Which? Recommended Provider for six years running
Frequently asked questions
interactive investor or Fidelity International: which is cheaper?
Costs are broadly comparable: interactive investor charges £3.99/trade + monthly fee, Fidelity International charges £7.50/trade (shares).
interactive investor or Fidelity International: which has the simpler tax treatment?
Tax treatment is comparable between the two: interactive investor — ISA / SIPP tax wrapper; Fidelity International — ISA / SIPP tax wrapper.
interactive investor or Fidelity International: which is better for beginners?
Both suit beginners, with different approaches: interactive investor — Flat monthly subscription covering ISA, SIPP and Trading Account, with £3.99 dealing fees. Fidelity International — Free fund dealing and a £90/year cap on ETF/share fees in an ISA or SIPP, with a six-year Which? Recommended SIPP.
Can I set up regular investing on interactive investor and Fidelity International?
On interactive investor: Free on eligible funds/ETFs. On Fidelity International: £1.50/trade, funds free.
interactive investor or Fidelity International: which is safer?
interactive investor: interactive investor is authorised and regulated by the Financial Conduct Authority (FCA). Client cash is protected under the Financial Services Compensation Scheme (FSCS) up to £85,000 per person, per authorised firm, and investments are ring-fenced separately from the company's own assets. Fidelity International: Fidelity International is authorised and regulated by the Financial Conduct Authority (FCA). Client money and investments are protected by the Financial Services Compensation Scheme (FSCS) up to £85,000 per person, per authorised firm. The SIPP has been named a Which? Recommended Provider for six consecutive years and includes pension drawdown with no additional charges beyond the standard service fee.
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Information on fees and features is accurate at the time of publication but may change: always check current terms on the broker's official website before opening an account. This is not financial advice.