IG vs Interactive Brokers — which broker is better?

Pros

• Around 17,000 tradable markets in a single account — shares, indices, FX, commodities, bonds, ETFs, turbo warrants and crypto CFDs, subject to regional restrictions
• Six top-tier licences — FCA (FRN 195355), BaFin, FINMA, ASIC (AFSL 515106), MAS and JFSA — plus a mid-tier DFSA licence in Dubai; the FINMA licence among those six is a full Swiss banking licence at IG Bank S.A., which puts Swiss cash under esisuisse protection
• Zero commission on UK and international shares, and the GBP 24 quarterly custody fee was scrapped outright in January 2026 rather than merely waived for active traders
• Platform stack that scales with the trader: web and mobile for most, ProRealTime for charting and backtesting, L2 Dealer for full order-book DMA, plus MT4, TradingView and documented REST/streaming APIs
• US-listed options from USD 1.00 per contract to open with nothing to close, and futures at USD 1.00 per contract per side (USD 0.75 on micros) — rare for a European retail broker
• No inactivity fee at all, where most rivals start charging after three to twelve dormant months, and no minimum deposit on any account
• Weekend dealing on the FTSE 100 and Wall Street, plus published client-sentiment data showing how IG's own book is positioned

Cons

• The 0.8% currency conversion mark-up on foreign-currency CFD and spread bet trades is where much of the real cost hides — on a USD position round-trip it comfortably exceeds the spread
• EUR/USD at roughly 0.9 pips is mid-table; raw-spread brokers quote 0.1–0.3 pips plus a small commission and work out cheaper for anyone trading FX frequently
• The 0.49% share dealing conversion rate is a discretionary discount rather than a contractual one — IG has committed to it only until 4 September 2026 and can raise it afterwards
• No fractional shares on IG's own platform, which creates real cash drag when drip-feeding small sums into high-priced US stocks
• Pricing genuinely differs by entity and account type — UK GBP share dealing, multi-currency share dealing, IG Europe and IG Bank all run separate schedules, and the published tables are hard to reconcile
• Crypto CFDs are unavailable to UK retail clients under the FCA ban, so the headline market count overstates what a UK resident can actually trade

Pros

• US stocks from USD 0.0035 per share on the Tiered plan, minimum USD 0.35 per order and capped at 1% of trade value
• Currency conversion at 0.20 basis points (minimum USD 2) — an order of magnitude cheaper than most European brokers' 0.25%–1.5%
• Roughly 160 market destinations in 36 countries from a single multi-currency account, with 28 settlement currencies
• No inactivity fee since 2021, plus no custody fee and no platform fee
• Trader Workstation offers over 100 order types plus a mature Python/Java/REST API used widely by retail algo traders
• Nasdaq-listed parent (IBKR) with published quarterly financials and around USD 21 billion of equity capital
• Top-tier licences in the US, UK, Ireland, Australia, Singapore and Hong Kong, with per-entity investor compensation disclosed
• Paper trading account mirrors the live platform, including the full API

Cons

• Customer support is the most common complaint: many requests go through the ticket system, and public reviews (e.g. on Trustpilot) often cite slow replies and template answers
• Trader Workstation has a genuinely steep learning curve; the first session is intimidating even for experienced traders
• The fee schedule is complicated: Fixed versus Tiered, pass-through exchange fees, and per-exchange minimums make cost prediction harder than it should be
• Real-time market data is a paid subscription per exchange, so the headline commissions understate the true monthly cost for active traders
• Account opening is longer and more document-heavy than at app-first brokers, and the website navigation is poor
• Spot crypto is only available to US clients via a separate arrangement; EEA clients get futures and exchange-traded products instead