CFD trading and financial spread betting can produce almost identical exposure to a market. Both let you take a position on rising or falling prices without buying the underlying asset. The practical differences are how you size the trade, how charges appear, which currency determines your return and how UK tax rules treat the outcome.
Neither product is inherently safer because of its name. A £5-per-point spread bet and a CFD position worth £5 per point will gain or lose the same amount from an identical price movement, before differences in costs and contract terms. The useful comparison starts with matching the exposure, not comparing the deposit shown on two order tickets.
What Is the Difference Between CFDs and Spread Betting?
With CFD trading, you enter a contract to exchange the change in an asset’s price between opening and closing the position. You select a quantity of units or contracts. Each contract has a defined value, which determines how much you gain or lose as the price moves.
With financial spread betting, you choose a monetary stake for each point of movement. A £2-per-point position gains £100 from a favourable 50-point move and loses £100 from an unfavourable move of the same size, before other charges.
| Feature | CFD trading | Financial spread betting |
|---|---|---|
| Position size | Units or contracts, with a stated contract value | A monetary stake per point |
| Profit calculation | Price change multiplied by quantity and any contract multiplier | Point movement multiplied by stake per point |
| Underlying ownership | No ownership of the referenced asset | No ownership of the referenced asset |
| Costs to compare | Spread, any commission, financing and other applicable charges | Spread, financing and other applicable charges |
| Currency check | Contract currency and any conversion into account currency | Stake currency and the contract’s definition of a point |
| Holding period | Check whether the contract rolls daily or expires | Check whether the bet rolls daily or expires |
The terminology changes, but the first task does not: establish the cash impact of a one-point move. “One contract” is not a universal quantity, and “one point” does not always mean one whole unit of the displayed price.
Comparing the Same Trade in Both Products
Consider a hypothetical UK index quoted at 8,000. Assume both products offer the same executable opening price, and the CFD contract is worth £1 per index point. Ignore financing and separate fees for this calculation.
You buy five CFD contracts, giving £5 of exposure per point. Alternatively, you open a long spread bet at £5 per point. Both positions have an initial notional exposure of £40,000: 8,000 multiplied by £5.
If you close at an executable selling price of 8,080, the calculations are:
- CFD: 80 points × five contracts × £1 per point = £400 profit.
- Spread bet: 80 points × £5 per point = £400 profit.
A closing price of 7,920 instead produces a £400 loss on either position. Because the example uses actual opening and closing execution prices, the effect of the quoted spread is already reflected in the result. Subtracting it again would count the same cost twice.
Now assume a 5% margin requirement. Each position requires £2,000 of initial margin, yet each controls £40,000 of exposure. An adverse 80-point move is only 1% of the starting index level, but its £400 loss equals 20% of that initial margin.
This illustrates why the stake or contract quantity matters more than the minimum deposit. For other markets, check the relationship between stakes per point and profit calculations before attempting to match positions.
UK Tax Treatment: Gains and Losses Both Matter
For individuals, retail CFD outcomes normally fall within the UK Capital Gains Tax regime unless profits are taxable as trading income. A closed contract can therefore produce a chargeable gain or an allowable loss. Commission and adjustments equivalent to interest and dividends enter the contract’s net calculation under HMRC’s treatment of retail CFDs.
That does not mean every profitable CFD trade creates a tax bill. The amount payable depends on the person’s wider tax position and applicable reliefs and allowances. Equally, an allowable loss is not an automatic cash refund. Its usefulness depends on whether and how it can be used under the tax rules.
Financial spread betting has a different capital gains treatment: no chargeable gains or allowable losses arise from it under HMRC’s financial spread betting guidance. The absence of Capital Gains Tax on winnings therefore comes with the absence of capital loss relief.
That distinction matters when comparing outcomes, not just advertising headlines. A losing spread bet does not become a deductible capital loss because it referenced the same share as a CFD would have done.
A blanket “tax free” label is not a substitute for checking your circumstances. This comparison concerns individuals in a UK tax context, not company accounts or tax residence elsewhere. Business arrangements deserve separate advice. The guide to UK spread betting tax treatment and its limitations covers that issue separately.
Which Product Costs Less?
Neither product is automatically cheaper. Compare the same market, monetary exposure, trading hours and intended holding period. A narrow spread can be offset by commission; a small opening cost can be overtaken by several weeks of financing.
Spreads and commissions
CFD charges can include both a bid–offer spread and a separate commission. A commission-free quote can still carry a trading cost through its spread. Financing and account charges may also apply, as set out in the cost discussion in the ESMA and EBA investor warning on CFDs.
For spread bets, inspect the quoted spread and the full fee schedule rather than assuming that the absence of a commission line means there are no other charges.
Suppose a hypothetical spread bet has a two-point spread at £5 per point. Its immediate spread cost is £10. A matched CFD with a one-point spread costs £5 through the spread, but a £3 opening commission and £3 closing commission bring its round-trip cost to £11. The narrower quote is not the cheaper completed trade.
Financing and contract expiry
Check whether the product applies daily financing, embeds carrying costs in its price, or uses another adjustment method. Compare cash or daily funded products with each other before comparing them with dated contracts. An expiry date changes the decision: maintaining exposure may require closing one contract and opening another.
For a hypothetical £40,000 position charged at an annual financing rate of 8%, a simple 365-day calculation gives about £8.77 per day. Fourteen charged days would cost roughly £123. This is an illustration, not a quoted rate; actual calculations, reference rates and charging calendars depend on the contract.
The lesson is practical. Saving £2 when opening a trade matters less if its holding costs differ by £30. Use the CFD costs and overnight financing guide to build a comparison for your intended holding period.
Currency Can Change the Comparison
Do not assume that a sterling account makes every trade economically identical. Read the contract currency, settlement currency and conversion terms on each product’s order ticket.
For example, suppose a US share CFD produces a $200 profit. At a hypothetical conversion rate of £0.80 per dollar, that is £160 before conversion charges. At £0.75 per dollar, it is £150. The dollar trading result is unchanged, but its sterling value differs.
Now suppose a spread bet on the same share defines one point as a one-cent price move and accepts a sterling stake. A £1-per-point position would gain £200 from a favourable $2 movement before charges. That is not automatically equivalent to a CFD position in 100 shares, which would generate $200.
Matching the displayed quantities would therefore be misleading. Convert both positions into the same cash sensitivity first. A convenient stake currency simplifies the arithmetic; it does not remove the market risk of the asset being referenced.
Margin and Retail Protection: More Similar Than Different
For UK retail accounts within the relevant FCA rules, the protection framework covers both CFDs and leveraged spread bets. The minimum opening margin depends on the underlying asset, not simply on which product name appears on the account.
The FCA’s retail margin and account protection rules require minimum margin of 5% for major stock market indices and 20% for individual shares. Providers may require more. The rules also require positions to be closed as soon as market conditions allow when account net equity falls below 50% of the required margin, and restrict liability to funds dedicated to these products in the account.
These are account protections, not a promise that each trade can lose only its opening margin. Nor does the close-out threshold mean that half your original deposit is guaranteed to remain.
In the earlier example, £2,000 of opening margin supports £40,000 of exposure. If the account contains £5,000, the cash beyond that initial margin is not automatically protected from losses on the position. Margin is a deposit requirement, not a personal loss budget.
Stops do not make the products equivalent to insured investments
An ordinary stop order can execute at a worse price during a gap or rapid move. Where a guaranteed stop is available, examine its premium, distance restrictions and contractual conditions. The distinction between ordinary, guaranteed and trailing stops matters more than whether the position is called a CFD or a spread bet.
When comparing accounts, set the same intended cash loss and stop distance. Otherwise, a smaller minimum trade size or a closer stop may make one order ticket appear safer even though you are comparing different risks.
The Provider and Legal Entity Still Matter
A familiar brand name does not establish which company holds your account. Check the contracting entity, its permissions and your client classification before comparing product features.
Moving to an overseas entity or accepting professional classification can remove protections available to UK retail customers. The FCA’s investor guidance on CFD providers warns about both arrangements and advises checking the actual entity in the terms and conditions.
For either product, ask how prices are formed, which trading hours apply, how orders behave during market closures and what happens if the platform becomes unavailable. A tax advantage cannot compensate for an account whose terms you have not understood.
How to Make a Useful Choice
Start with a representative trade rather than a general preference. Write down the market, direction, exposure per point, expected holding period and planned cash risk. Then calculate the result under both contracts using the same assumptions.
Spread betting may be the more straightforward format if you prefer sterling stakes per point and its UK tax treatment fits your circumstances. CFDs may be easier to work with if your calculations already use share quantities, units or contract multipliers. Neither convenience proves that the trade itself is worthwhile.
Before choosing, compare four items: the complete trading cost, the smallest usable position size, the treatment of currency conversion and the account’s protection terms. Include losing outcomes in the tax comparison rather than assuming every position will finish in profit.
The decisive question is not whether CFDs or spread betting are better in the abstract. It is which contract gives you the intended exposure, at an acceptable cost, without introducing terms you have overlooked. If the position is too large for your loss budget, changing its label will not fix it.