A lot of people don’t even consider spread betting numerically until they get into their first bad position, at which point it’s thrust upon them. They are currently in a trade that is working against them and lo and behold, they’re doing mental arithmetic in real time. Not at a time when you need to learn the mechanics.
It’s a very straightforward formula: multiplication of two variables. However, what matters around that formula – how many points are different across the market, how leverage can make the difference in your result, and what other costs will impact your final score – all have some effect on the actual profit or loss. This article visits each of them clearly.
What Your Spread Betting Account Shows You About P&L
If you have an open position in your spread betting account, the spread betting platform is already doing the work of computing your P&L in real time. Most dashboards display:
- The price at which the position opened – Your entry price
- The highest offer price (when trading a buy order) or lowest bid price (when trading a sell order) in the market.
- The amount of money you have invested per point (£ per point)
- Your live profit or loss, it refreshes as the market moves.
When you are about to begin your manual calculations, it is important to know what those numbers mean. One thing that often surprises the novice trader: The amount that appears in the margin isn’t a limit on the amount that you can lose. It’s a deposit. Your actual exposure is actually the entire notional value of your position, which is significantly higher.
For retail clients, FCA product intervention provisions restrict the leverage on key equity indexes to 20:1. For £500 margin, that will mean managing up to £10,000 of notional exposure, and it is the £10,000 that makes up the calculation of profit and loss.
The Core Formula: Stake × Points Moved
All spread bet P&L is simply one equation:
Profit or Loss = Stake (£ per point) × Points moved
The benefit is, if the market goes in your favour, you are in good shape. If it moves in your favour, it’s positive. Where the trade is going, that’s what “in your favour” is, but the formula is always the same.
What Counts as a Point in Different Markets
One point does NOT equate to the same thing on all instruments. The most common definition for major spread betting markets is as follows, but it is advisable to check with your spread betting provider before you trade any new market:
- FTSE 100: One index unit; a move from 8,000 to 8,060 is 60 points
- Wall Street / Dow Jones: Also one index unit per point
- GBP/USD (and most major forex pairs): The fourth decimal place – 1.2700 to 1.2750 is 50 points
- Brent crude oil: Usually $1/per barrel equivalent (depending on the provider)
- UK individual equities: 1 penny (1p) per share price move
- Gold (spot): $1 per troy ounce on average
Some baseline checks are worth making before applying the formula to an unknown instrument:
- Check with your provider on what a point is for that particular marketplace.
- At entry, also make note of the bid/offer spread as this will have implications on the break-even level.
- Ask if overnight financing is applicable if you intend to keep overnight
The Spread: All positions start at a disadvantage.
A spread bet is never made at the “mid-market”. When going long, you buy at the offer, which is slightly higher than mid. Going short, you sell at the bid – slightly below. With a 2-point spread pay at £5 per point, you’re starting £10 in the negative. You have to gain at least 2 points on the market in order to break even. This is not a hidden fee, but on trades where the expected move is fairly light, it can be easy to underestimate this.
Worked Examples Across Five Common Scenarios
It is much more useful to see the formula used with real numbers than to read it abstractly. The examples that follow include long, short, and partial close trades, and other asset classes, since real market activity seldom results in round numbers.
Going Long on the FTSE 100
Entry at 8,200 (offer price), £3 per point. It moves up to 8,265, and you get out.
Points gained: 65 | Profit: 65 × £3 = £195
Long Position – Market Moves Against You
Same trade: entry at 8,200, £3 per point. FTSE falls to 8,135.
Points lost: 65 | Loss: 65 × £3 = £195
Short Trade on GBP/USD
Sell at 1.2700 (bid price), £4 per point. Pair falls to 1.2630.
Points gained: 70 | Profit: 70 × £4 = £280
UK Share Spread Bet
Long UK manufacturer’s shares at 560p at £2 per point (1pt = 1p). The price increases to 592p.
Points gained: 32 | Profit: 32 × £2 = £64
Closing a Position at a Partial Move
Long on FTSE 100 at 8,400, £6 per point. 18 points will move in your favour in the market before you close.
Profit: 18 × £6 = £108
The £108 result is exactly the same as £2 per point over 54 points. Stake size and point movement are variables – one in and one out.
P&L at Different Stake Sizes and Market Moves
| Stake (£/pt) | Points Moved | Trade Direction | P&L |
| £1 | 50 | Favourable | +£50 |
| £3 | 40 | Favourable | +£120 |
| £5 | 35 | Favourable | +£175 |
| £2 | 50 | Against | −£100 |
| £5 | 65 | Against | −£325 |
| £10 | 90 | Against | −£900 |
Margin, Leverage, and the Size of Your Leverage
The numbers in the formula remain the same. What matters is what scale the arithmetic works on compared to the amount of money you have in the bank and that makes a difference.
Margin Is a Deposit, Not a Loss Ceiling
Margin is the minimum amount you must deposit to open and maintain a position. It does not represent the maximum you could lose. If the market suddenly turns against you, and you cannot close the position immediately, such as when there is a gap open at the start of the market, then losses can surpass the margin you have held. This is a structural feature of leveraged products, not a corner case.
How the FCA Leverage Framework Shapes Retail P&L
The leverage limits are specified by the FCA for the retail investor, and they establish the amount of notional position that you can open on a specific amount of margin money, depending on the asset class. Current limits and the notional exposure they allow based on £500 margin are shown below:
| Asset Class | Max Leverage | £500 Margin Controls |
| Major Forex Pairs | 30:1 | £15,000 notional |
| Major Equity Indices | 20:1 | £10,000 notional |
| Gold | 20:1 | £10,000 notional |
| Other Commodities | 10:1 | £5,000 notional |
| Individual Equities | 5:1 | £2,500 notional |
| Cryptocurrencies | 2:1 | £1,000 notional |
On a major equity index, a 100-point negative movement will result in a loss of £1,000 for every £10 per point. On the FTSE 100 at 8,000, that’s a 1.25% decline, a move that can occur within a single session. The formula itself is not changed by leverage; it sets the size of the position they’re taking. As part of their regulations, all spread betting brokers that are regulated in the UK will prominently display the percentage of their retail clients that lose money using their platforms. This number is always in the range of 70% to 80% and it is vital to understand the P&L calculation in the beginning of the ride and across all major providers.
Additional Factors That Affect the Final Number
The £ per point formula leads to the gross result. After addition of the following costs, what you gain or lose can vary:
- Overnight financing charges. Any position kept over the daily close will be subject to daily interest. If a trade is held for several days or weeks, these can add up and significantly affect net profit or add to a net loss.
- Guaranteed stop-loss premiums. There are some that provide guaranteed stops which would close your position at a specific price no matter gapping. The protection is accompanied by a price, typically a wider spread or a flat fee, thus eroding your gross P&L.
- Dividend adjustments on equity positions. Ex-dividend dates are the dates for share spread bet adjustments. Usually, a credit is given for long positions and a debit for short positions, corresponding to the dividend.
- Currency conversion on international instruments. The pound result from a USD-priced market traded from a GBP account incorporates the impact of the exchange rate throughout the life of the trade.
- Slippage on market orders. Your closing price may vary from the desired exit due to the speed of the market. The impact can be either way or more volatile movement.
- Differences in how providers count points. Two providers can give different interpretations of what a point is for the same market. Always check this before you put a position on an unfamiliar instrument, a misassumption will directly impact the P&L.
They are not extraordinary situations, but rather regular attributes of spread betting which appear throughout typical trading and make up the distinction between a gross and a net result.
Tax Treatment and Practical Tax Treatment on your P&L
As a spread bettor in the UK, there’s a fundamental advantage in the simplicity of spread bets: that your profits are normally not liable to Capital Gains Tax or Stamp Duty Reserve Tax. HMRC classifies financial spread betting as gambling, placing it outside the standard CGT framework for most retail participants.
Concretely, this translates to:
- Spread betting gross profits are not normally subject to CGT deduction in the case of retail spread betting accounts.
- It is not possible to offset any losses against other capital gains – the tax-free status also comes with no loss relief.
- If there are indications that this activity is actually professional trading, rather than personal gambling, then the classification may be disputed by HMRC.
In most cases, retail spread bettors will not have to take CGT on profits exceeding the annual exempt amount as the gross P&L figure and the amount retained will be identical. However, tax treatment depends on individual circumstances and can change from year to year and anyone with a complex situation would be wise to seek independent guidance before taking the standard treatment as a given.
Disclaimer: This article is intended for information and education only. It is not a commitment of financial, investment, or any other kind of advice or recommendation to spread betting or any other trading. Spread betting is a leveraged product with a risk of loss greater than the original amount you invest. History of investment performance does not constitute a representation or warranty as to future performance. The tax treatment mentioned is based upon current HMRC guidance for UK retail participants – if in doubt, please seek independent tax advice. As of August 2026, the leverage limits and regulations mentioned are applicable to retail clients of Financial Conduct Authority (FCA)-regulated UK entities. When opening a position with a leveraged financial product, always be aware of the potential risks.
