Both are FCA regulated and FSCS protected. The real differences are fees, investment range and how each platform feels to use. Here is the honest comparison.
Fees verified July 2026. Capital at risk. Information, not financial advice.
Fund investors who value guidance, tools and phone support.
Active investors who want professional tools alongside long-term holdings.
| Fee | Fidelity | IG |
|---|---|---|
| Platform fee | 0.35% up to £250k (0.20% above); £90/year flat if under £25k without a regular savings plan | £0 (custody fee removed January 2026) |
| Share dealing | £7.50 per online trade | £0 commission with instant currency conversion |
| Fund dealing | Free | Not available (shares and ETFs only) |
| FX fee | 0.75% tiered | 0.7% |
| Stocks & Shares ISA | Platform fee applies | Free |
| SIPP | Platform fee applies | Available, third-party administration fees apply |
| Withdrawals | Free | Free |
| Minimum to start | £25/month or £1,000 lump sum | No minimum |
Reviewers highlight helpful phone support and a straightforward transfer process.
The £7.50 share dealing charge and dated parts of the website draw criticism.
Read Fidelity reviews on TrustpilotExperienced traders rate the platform quality, charting and market access.
Lower scores than rivals, with complaints about account queries and the complexity of the product range.
Read IG reviews on TrustpilotFidelity is a solid full-service choice for fund investors. Fund dealing is free, the ETF and share service fee is capped at £90 a year, and the guidance content is some of the best of the big platforms.
Costs are less friendly if you trade shares often or hold a small account without a regular savings plan. Compare it against AJ Bell if you want similar breadth with lower dealing charges.
IG is best known for trading, but its share dealing account and ISA became far more competitive in 2026 when it removed custody fees and commissions. You get institutional-quality tools with no platform charge.
The 0.7% currency conversion fee is the main cost to watch on US shares, and there are no traditional funds. It suits confident investors; beginners will find simpler homes elsewhere.
A 0.2% fee difference is worth optimising. Knowing whether you are saving enough in the first place is worth far more. Delphina models your pensions, ISAs and investments and tells you where you actually stand.