IG is the best overall forex trading platform for most UK retail traders in 2026. It offers a proprietary web platform and mobile app, along with MetaTrader 4, TradingView and ProRealTime. UK customers can also choose between spread betting and CFD trading. IG provides negative balance protection for eligible retail clients and publishes minimum spreads for major currency pairs.
CMC Markets is a better fit for active traders who prioritise pricing and TradingView. Saxo suits experienced traders who want advanced multi-asset access and spot FX.
Updated 20 September 2026.
Best UK Forex Platforms at a Glance
| Platform | Best for | Main strengths | Main limitation |
|---|---|---|---|
| IG | Best overall | Proprietary platform, mobile app, MT4, TradingView, ProRealTime, spread betting and CFDs | Not always the cheapest option for high-frequency trading |
| CMC Markets | Active traders and TradingView users | 300+ FX pairs, TradingView integration, MT4, FX Active pricing from 0.0 pips on six major pairs | Commission pricing needs to be compared with the total trading cost |
| Saxo | Experienced multi-asset traders | SaxoTrader, TradingView, MultiCharts, OpenAPI and access to 185+ FX pairs | More complex pricing and a minimum commission on small FX trades |
Why IG Is the Best Overall Forex Platform in the UK
IG offers the strongest balance of platform choice, market access, educational support and UK-specific trading options.
Available platforms include:
- IG's proprietary web platform
- IG mobile trading apps
- MetaTrader 4
- TradingView
- ProRealTime
UK customers can trade forex through spread betting or CFDs. IG quotes minimum spreads of 0.6 pips for EUR/USD, 0.7 pips for USD/JPY, and 0.9 pips for GBP/USD and EUR/GBP.
These are minimum spreads, not guaranteed costs. Spreads can widen during volatile or illiquid market conditions.
IG also offers flexible position sizing, demo accounts and negative balance protection for eligible retail clients. UK support is available from 8am Saturday until 10pm Friday, covering the main forex trading week.
Is IG Automatically the Cheapest?
No. IG's headline spreads are competitive, but the full cost depends on how and how often you trade.
Other charges can include:
- Overnight funding
- Guaranteed stop premiums
- Currency conversion fees
IG states that its standard currency conversion fee is 0.7% on applicable transactions.
IG's UK risk warning also states that 69% of retail investor accounts lose money when trading spread bets and CFDs with IG. The platform provides access to leveraged trading, but it does not make forex trading safe or profitable.
Is CMC Markets Better Than IG for Forex?
CMC Markets is better than IG for active forex traders who prioritise TradingView, a wide selection of currency pairs or commission-based pricing.
CMC Markets offers more than 300 FX pairs through its proprietary web platform, mobile app, MetaTrader 4 and TradingView. Its FX Active account advertises spreads from 0.0 pips on six major currency pairs, plus a fixed commission. CMC also advertises standard account spreads from 0.5 pips on major pairs.
CMC Markets may suit you if you:
- Already use TradingView for charting and analysis
- Trade often enough for tighter spreads to offset the commission
- Want access to major, minor and exotic currency pairs
- Prefer one provider for forex, indices, commodities, shares and other CFDs
The important detail is that 0.0-pip pricing does not mean commission-free trading. Compare the spread and commission for your trade size, then include overnight financing if you keep positions open beyond the trading day.
CMC's MT4 account is separate from its TradingView setup. Check which markets and account features are available before opening an account.
Is Saxo the Best Forex Platform for Advanced Traders?
Saxo is the strongest option in this comparison for experienced traders who want forex alongside a broad multi-asset portfolio.
Saxo offers SaxoTrader, TradingView and MultiCharts integrations, along with OpenAPI and FIX API tools. Its UK platform provides access to more than 71,000 instruments across forex, CFDs, shares, options, commodities, futures and bonds.
Saxo advertises minimum spreads of:
- 0.7 pips for EUR/USD
- 0.8 pips for GBP/USD
- 0.9 pips for USD/JPY
It also applies a minimum commission of US$3, or the account-currency equivalent, on smaller FX transactions. The exact price depends on the account tier, trade size and country of residence.
Saxo may be a good fit for:
- Experienced traders
- Portfolio managers and hedgers
- Traders who want spot FX as well as CFDs
- Investors who want forex, shares, options, bonds and futures in one account
- Users who need advanced order types, exposure reporting or API access
For a beginner trading small positions, Saxo may offer more functionality than necessary.
Which Forex Platform Has the Lowest Trading Costs?
There is no single cheapest forex platform for every UK trader. The result depends on trade size, frequency, holding period and account type.
Compare the platforms in this order:
- Check the live spread for the currency pair you plan to trade. GBP/USD and EUR/USD pricing can differ considerably from exotic pairs.
- Add any commission. CMC's FX Active account charges a commission alongside the spread, while IG's standard UK forex offering is generally commission-free on FX.
- Check overnight financing. A low entry spread can be outweighed by financing charges if you hold a position overnight.
- Check minimum trade sizes. Minimum commissions can have a bigger effect on small trades, particularly with Saxo.
- Check currency conversion fees. Converting profits, losses or account balances can create another charge.
- Review the deal ticket before placing a trade. Advertised minimum spreads are not guaranteed in every market condition.
For short-term, high-volume forex trading, CMC Markets may cost less than IG if its commission pricing suits your trade size. For occasional trading, IG is usually the simpler option.
What Should UK Traders Check Before Opening a Forex Account?
FCA Authorisation
Use the FCA Firm Checker to confirm that a provider is authorised and has permission to offer the financial service you want. The FCA warns that clone firms can copy the names, addresses and reference numbers of genuine authorised firms.
Retail Leverage Limits
For UK retail clients, FCA rules limit CFD leverage to between 30:1 and 2:1, depending on the volatility of the underlying asset. Major forex pairs can generally have up to 30:1 leverage, while other instruments can have lower limits.
FCA rules also include a 50% margin close-out requirement and protection against losing more than the funds in the CFD account.
Professional clients may not receive the same protections. Higher leverage is not automatically an advantage because it increases the size and speed of potential losses.
Spread Betting Versus CFDs
UK traders commonly access forex through either:
- Spread betting, where the position is sized in pounds per point
- CFDs, where the position is based on contracts or lots
IG states that its UK spread betting accounts generally offer tax advantages compared with CFDs. Tax treatment depends on individual circumstances and can change, so do not choose an account type based only on assumed tax benefits.
Final Verdict
Choose IG if you want the best all-round UK forex trading platform, particularly if you value platform choice, a simple account structure, spread betting and educational support.
Choose CMC Markets if you are an active trader who wants TradingView, more than 300 FX pairs or commission-based FX Active pricing.
Choose Saxo if you are an experienced trader who wants advanced tools, spot FX and a broad multi-asset account.
Before opening a live account, use demo accounts with IG and either CMC Markets or Saxo. Compare the live spread, commission, overnight financing and minimum trade size for the currency pairs you plan to trade.