How to trade online in the UK: a complete guide

Last Update Friday 14 August 2026 04:20   

What is online trading?

Online trading is the process of buying and selling financial instruments through a digital platform. Before the internet era, placing a trade required calling a broker who would execute the order manually. Today, an FCA-regulated online trading platform provides direct market access, real-time prices, charting tools and order management from a single account accessible via web browser or mobile app.

Online trading covers a broad spectrum of activity: from long-term investing in shares and ETFs through a stocks and shares ISA to short-term leveraged trading using spread bets and CFDs. The products you use determine your tax treatment, risk profile and the markets you can access.

Online trading in the UK: key facts

How does online trading work?

Online trading platforms work by routing your orders to exchanges or providing over-the-counter (OTC) pricing where the platform acts as counterparty. When you place a buy order, you specify the market, the size and the order type. The platform executes the order at the best available price and the position appears in your portfolio instantly.

The mechanics differ depending on the product. For share dealing, your order is routed to the exchange (LSE for UK shares, NYSE or NASDAQ for US shares), settled in T+2 days, and you receive legal ownership of the shares. For spread bets and CFDs, the platform prices the market based on the underlying exchange price and you hold a contract with the provider rather than the underlying asset.

What can you trade online in the UK?

How to start trading online

1. Choose an FCA-regulated platform

Any platform you use to trade online in the UK must be authorised and regulated by the Financial Conduct Authority (FCA). Check the FCA register before opening an account. FCA regulation ensures client money is held separately, conduct standards are met and FSCS protection applies to eligible deposits up to £85,000 (investments) and £120,000 (deposits) per person per firm if the platform becomes insolvent. When evaluating platforms, also consider the best trading apps and investment platforms for your specific needs: whether you prioritise leverage, ISA eligibility, market range or mobile functionality.

2. Open and verify your account

Opening a trading account online typically takes 10-20 minutes. You will need to provide personal details, proof of identity (passport or driving licence) and a UK bank account for deposits and withdrawals. KYC (know your customer) checks are required by FCA rules before you can trade.

3. Fund your account

Deposit funds via bank transfer or debit card. For leveraged products like spread bets and CFDs, you only need to deposit the margin required to open positions, not the full position value. For share dealing, you need the full value of the shares you intend to buy, plus dealing costs.

4. Research the markets

Before placing your first trade, research the market you are considering. Our platform includes live prices, company fundamentals, news feeds and charting tools. For beginners learning how to buy shares, starting with ETFs tracking major indices rather than individual stocks provides broader diversification while you build confidence.

5. Place and manage your trade

Select the market, choose your order type (market order for immediate execution at the current price, or limit order to execute only at your specified price), set your size and attach stop-loss and limit orders to manage risk. Monitor your positions through the platform dashboard and close when you are ready.

Online trading: costs to consider

Risk management in online trading

Risk management is as important as market selection when trading online. The key tools are:

• Stop-loss orders: automatically close your position if the market moves against you by a specified amount, limiting your maximum loss. Standard stops can suffer slippage in fast markets; our guaranteed stops eliminate this at a small premium.

• Position sizing: the amount you stake per trade relative to your overall account size determines your risk per trade. Many professional traders risk no more than 1-2% of their account on any single position.

• Diversification: spreading positions across different markets, sectors and geographies reduces the impact of any single adverse move on your overall portfolio.

• Demo account: practising with virtual funds in real market conditions before risking real capital. All our platforms and markets are available in demo mode indefinitely.

Note that highly speculative opportunities such as penny stocks carry substantially higher risk than mainstream markets: lower liquidity means larger spreads, more difficulty exiting positions and greater price volatility. Risk management discipline is particularly important in these markets.

Online trading FAQs