Spread betting is one of the UK's best-kept financial secrets. It is the only way to trade financial markets and pay absolutely zero tax on your profits. No Capital Gains Tax. No Stamp Duty. Nothing. Here is how it works.
What Spread Betting Is
Spread betting is exactly what it sounds like — you are betting on the direction of a financial market. You choose a market, decide whether you think it will go up or down, and stake a pound amount per point of movement. You never own the underlying asset.
Key Concept
Because HMRC classifies spread betting as "gambling" rather than "investing," profits are completely tax-free. This is a huge advantage unique to UK and Irish residents. In most other countries, spread betting is either not available or not tax-exempt.
How It Works
Your broker quotes two prices: the buy (ask) price and the sell (bid)price. The gap between them is the spread — this is the broker's fee and your cost of trading.
Example
The FTSE 100 is at 8,000. You think it will rise, so you buy at £10 per point. The FTSE rises to 8,050. Your profit: 50 points × £10 = £500 (completely tax-free).
But if the FTSE falls to 7,950 instead: 50 points × £10 = £500 loss. Spread betting works both ways. The leverage that makes big profits possible also makes big losses possible.
Risks of Spread Betting
Warning
Spread betting uses leverage, which means you only put down a fraction of the total position value as margin. This amplifies both gains and losses. It is entirely possible to lose more than your initial deposit, although FCA rules since 2019 require brokers to provide negative balance protection for retail clients — meaning your account cannot go below zero.
Key Features
- Tax-free profits — no CGT, no stamp duty
- Go long or short — profit from rising or falling markets
- Wide market access — stocks, forex, indices, commodities, crypto
- No commissions — cost is built into the spread
- Overnight funding — you pay a small daily charge for holding positions overnight
- Losses are not tax-deductible — the flip side of tax-free profits
Popular Spread Betting Platforms
| Platform | Strengths | Min Stake |
|---|---|---|
| IG | Largest UK platform, excellent charting, education | £0.50/point |
| CMC Markets | 10,000+ markets, competitive spreads | £0.10/point |
| City Index | Good mobile app, tight spreads on forex | £0.50/point |
| Spreadex | Financial + sports betting combo, fixed-odds | £0.50/point |
Key Concept
Spread betting is powerful but not for everyone. If you are a long-term investor, share dealing in an ISA is simpler and safer. If you are an active trader looking to trade frequently with tax efficiency, spread betting is hard to beat in the UK. Start with a demo account and tiny stakes (£0.10-0.50/point) until you are consistently profitable.
Risk Disclaimer: Trading financial markets involves significant risk of loss. The content on this page is for educational purposes only and does not constitute financial advice. Past performance is not indicative of future results. You should not trade with money you cannot afford to lose. 70-80% of retail investor accounts lose money when trading CFDs and spread bets. Consider whether you understand how these products work and whether you can afford the high risk of losing your money.