Spread Betting vs CFD Trading Explained

For UK-based traders, the choice between spread betting and CFD trading is one of the most consequential decisions you'll make. Both instruments let you go long or short on assets like EUR/USD forex pairs and the FTSE 100 index, using leverage to amplify exposure without putting up the full contract value. The mechanics are nearly identical. The tax treatment is not.

Spread betting is classified as gambling under UK law, which sounds alarming but is actually a significant advantage. Because it's legally a bet, profits are generally exempt from Capital Gains Tax (CGT) and stamp duty. For a profitable day trader making £20,000 in annual gains, that exemption could save thousands of pounds compared to the equivalent CFD profits, which would be taxed at 10% or 20% above the £6,000 CGT allowance (2026 figures).

CFDs, by contrast, are regulated financial instruments available worldwide. They carry a tax liability on profits, but they also allow you to offset losses against gains, which can be genuinely useful if your trading year includes significant drawdowns.

There are other differences too. Spread betting is only available to traders in the UK and Ireland. CFDs are accessible globally. Spread betting uses GBP stakes per point, which eliminates currency conversion costs on UK-listed instruments. CFDs on foreign assets may introduce FX conversion fees.

Both instruments are regulated by the FCA in the UK, both support leverage up to 20:1 on major forex pairs under ESMA rules, and both are available through the same brokers. The decision, then, comes down to your tax position, your location, and your trading strategy.

Tax is where spread betting and CFD trading diverge most sharply, and for UK day traders, it's the factor that should drive your decision more than anything else.

Spread Betting Tax Rules

Under current HMRC guidance, spread betting profits are not subject to Capital Gains Tax or stamp duty. The legal basis is that spread betting is classified as gambling, not investing. That classification means winnings are treated like lottery or casino winnings: not taxable for most individuals. There's one important caveat. If spread betting is your primary source of income, HMRC may classify it as a trade and apply income tax. This is relatively rare for retail traders but worth monitoring if your annual profits are substantial.

CFD Tax Rules

CFD profits are subject to CGT in the UK. The 2026 CGT allowance stands at £6,000 per individual. Gains above that threshold are taxed at 10% (basic rate taxpayers) or 20% (higher rate taxpayers). On a £20,000 trading profit, a higher-rate taxpayer would owe approximately £2,800 in CGT after the allowance. The offsetting advantage is that CFD losses can be carried forward and deducted from future gains, which can meaningfully reduce your tax bill in volatile years.

Stamp Duty

Neither instrument attracts stamp duty, since neither involves actual share ownership. This contrasts with buying UK equities directly, which carries 0.5% stamp duty reserve tax. For traders rotating frequently through positions, this exemption applies equally to both spread betting and CFDs.

The practical conclusion: profitable UK day traders generally benefit from spread betting. Traders who expect losses, or who need to hedge existing portfolios, often find CFDs more useful.

Strip away the tax difference and the cost structures of spread betting and CFDs are remarkably similar. Both embed their primary cost in the bid-ask spread. Both charge overnight funding if positions are held past the daily settlement. And both require margin as collateral against leveraged positions.

Spreads and Commissions

On major forex pairs like EUR/USD, competitive brokers offer spreads starting from 0.6 pips on both instruments. Spread betting typically folds all costs into the spread with no separate commission. CFDs on forex also tend to be commission-free, but CFDs on individual shares often carry a per-trade commission, typically 0.1% of the notional value. For a day trader focused on indices and forex, this distinction rarely matters. For a trader rotating through UK equities, it does.

Overnight Funding

Both instruments charge a daily funding fee on positions held overnight, calculated as a percentage of the notional position size. On a £10,000 FTSE 100 position, this typically amounts to around £0.50 per night at current rates. Pure day traders who close all positions before the market close avoid this cost entirely, which is one reason day trading suits both instruments well.

Margin Requirements

Margin requirements are set by the FCA under ESMA rules and are identical for both instruments. Major forex pairs require 3.33% margin (30:1 leverage cap). Major indices like FTSE 100 require 5% margin (20:1). A £10,000 FTSE 100 position requires £500 margin, regardless of whether you're spread betting or trading CFDs.

Net of tax, spread betting is generally cheaper for profitable UK traders. CFDs carry the additional drag of CGT, which can represent 10-20% of net gains annually.

Numbers make this clearer than any description. The following examples use identical market scenarios to show how spread betting and CFD trading compare in practice, including the tax impact for a UK higher-rate taxpayer.

Example 1: EUR/USD Long Trade

Setup: £10,000 notional exposure, 20:1 leverage, £500 margin. Entry at 1.55805, exit at 1.56950, a gain of 114.5 pips.

• CFD result: 114.5 pips × £10 per pip (1 standard lot equivalent) = £1,145 gross profit. After CGT at 20% on gains above the £6,000 annual allowance, the effective tax on this trade could be £229. Net: approximately £916.
• Spread bet result: £10 per point × 114.5 points = £1,145 gross profit. Tax-free for most UK individuals. Net: £1,145.

The spread bet produces £229 more in this single trade. Across hundreds of trades annually, that differential compounds significantly.

Example 2: FTSE 100 Long Trade

Setup: Same £10,000 exposure, £500 margin. FTSE 100 moves from 8,200 to 8,250, a gain of 50 points.

• CFD result: 50 points × £10 per point = £500 gross. CGT applies on net annual gains above allowance.
• Spread bet result: £10 per point × 50 = £500 gross. Tax-free. No stamp duty (neither instrument attracts it).

When the Trade Goes Wrong

If both trades reversed and produced a £500 loss, the CFD loss can be recorded and carried forward to offset future CGT liabilities. The spread betting loss has no tax value. For traders who expect to lose money in the short term while learning, CFDs offer a small consolation in the form of loss offsetting.

The core conclusion from comparing spread betting vs CFD trading is straightforward. For UK-based traders generating consistent profits, spread betting is the more tax-efficient instrument. The CGT exemption alone can save hundreds to thousands of pounds annually, and the cost structure is simple: spread costs, no commissions on most instruments, and no stamp duty.

CFDs remain the better choice in three specific situations: you're based outside the UK or Ireland; you're in an early stage of trading and expect to record losses that you want to carry forward; or your strategy requires instruments not covered by spread betting, such as DMA equity access.

Both instruments carry real risk. Leverage amplifies losses as well as gains, and 78% of retail CFD accounts lose money according to broker disclosures. Starting with a demo account, limiting risk to 1-2% of capital per trade, and using stop-loss orders are non-negotiable practices for beginners.

The brokers listed on this site, including Pepperstone, IG Markets, and Capital.com, all offer both spread betting and CFD accounts under FCA regulation. Most have no minimum deposit requirement or very low entry thresholds, making it practical to open an account, test the platform, and make an informed decision before committing significant capital.