IG vs Interactive Brokers (2026): United Kingdom Comparison

For United Kingdom traders, trading costs at IG are transparent and tied to spread markups. On GBP/USD, IG typically offers spreads from 0.6 pips on its standard account, with no commission, ideal for retail UK traders making modest trades. Interactive Brokers uses a tiered commission model: lower raw spreads from 0.1 pips but a per-trade fee in GBP, which can be cheaper for high-volume professionals but confusing for beginners. UK traders trading less than £10,000 per position often pay less with IG. Those trading larger notional values may find Interactive Brokers cheaper despite the commission. IG also charges a standard FX conversion fee on non-GBP deposits, while Interactive Brokers converts automatically at interbank rates. When comparing effectively, consider your monthly volume in GBP to see which structure suits you.

IG's proprietary platform is built for the UK trader, with native GBP pricing, a clean web interface, and advanced charting through ProRealTime. It is intuitive, reliable, and includes UK-specific market commentary and sentiment data. Interactive Brokers offers Trader Workstation (TWS), an incredibly powerful desktop platform with deep routing, options analytics, and custom algorithms — but its complexity often overwhelms British retail traders. IG also offers a well-regarded mobile app for iOS and Android, which supports Face ID and all UK payment methods for seamless deposits. Interactive Brokers' mobile app is functional but less user-friendly. For UK traders who value speed of execution and ease-of-use, IG's platform is a clear winner. Professional UK traders who need advanced order types and multi-asset routing may still prefer TWS.

Execution quality in the UK matters for volatility around London market open. IG uses a market-maker order flow for its standard CFD and spread betting accounts, which results in fast, instant execution for UK traders on major pairs like GBP/USD. Their average execution speed is around 30 milliseconds. Interactive Brokers utilises direct market access (DMA) for its smart routing engine, often achieving faster fills but with potential slippage on thin order books. For UK traders trading in GBP, IG's execution is consistent and avoids external liquidity issues. Interactive Brokers offers superior execution for large institutional-size orders, but retail UK positions under £10,000 may see little difference. Overall, both are highly reliable under FCA oversight, but IG offers a smoother execution experience for the majority of British retail traders.

Both IG and Interactive Brokers are authorised and regulated by the UK Financial Conduct Authority (FCA). IG UK holds FCA reference 195355 and is also listed on the London Stock Exchange, offering British traders the security of a FTSE 250 company. Interactive Brokers UK is regulated under FCA reference 208159 and part of the NASDAQ-listed Interactive Brokers Group. For United Kingdom traders, FCA regulation means eligibility for the Financial Services Compensation Scheme (FSCS), protecting up to £85,000 per person in the event of insolvency. IG and Interactive Brokers also adhere to strict FCA client money rules, ensuring segregated funds. However, IG's UK head office in London provides easier access to FCA-related support and local dispute resolution. This regulatory robustness is vital for UK traders who prioritise safety and transparency.

United Kingdom traders have different funding experiences. IG actively supports Bank Transfer, PayPal, Skrill, and Faster Payments, with GBP deposits usually credited instantly and free of charge. Withdrawals are also convenient: UK traders can withdraw via Faster Payments to a UK bank account in under 2 hours, or through PayPal/Skrill within 24 hours. Interactive Brokers, in contrast, accepts Bank Transfer and Faster Payments for GBP, but does not offer PayPal or Skrill as direct deposit methods. UK clients must link their bank account, and while withdrawals are free, the processing time can take 1-2 business days due to their global banking infrastructure. There are no deposit fees at either broker, but Interactive Brokers applies a minimum initial deposit of £5,000 for UK clients, while IG offers a £0 minimum deposit with a small funding requirement for active trading. Overall, IG is far more aligned with UK retail payment habits.

Islamic (swap-free) accounts are important for many United Kingdom Muslim traders. IG provides a dedicated Islamic account for UK residents, compliant with Sharia law, with no overnight interest on positions. IG's Islamic account also ensures no hidden swap fees, but spreads may be wider to compensate. Interactive Brokers also offers Islamic accounts for UK traders, but conditions are stricter: swap-free status applies to cash forex and certain CFD products, and the account must be approved based on eligibility. Both brokers are FCA-regulated, so UK Islamic traders are fully protected. However, IG's process is more straightforward and user-friendly. UK traders following Sharia principles should confirm with each broker's support team about their specific instruments and whether swap-free applies to indices, commodities, and cryptocurrencies before choosing.

United Kingdom traders benefit from strong local support at both brokers. IG offers 24/5 customer support via phone, live chat, and email from its London office, with UK-specific guidance on CFDs, spread betting, and tax implications. Interactive Brokers also provides UK phone support during London trading hours, but many clients report longer wait times and a more self-service orientated approach. IG's support team is widely regarded as more responsive for retail-level queries, including help with deposits, withdrawals, and platform navigation. Interactive Brokers' support is adequate but more suited to technical and account-specific issues. If you are a UK trader who values quick, plain-English assistance, IG is the better option.