When Does HMRC Treat Forex Trading as a Business? Badges of Trade

HMRC treats an individual's forex trading as a business only in exceptional cases. Its Business Income Manual at BIM56850 adopts the "prima facie presumption", from the Salt v Chamberlain judgment, that a private person's speculative dealing in shares, derivatives and similar instruments is not a trade, and the courts have backed that view for decades. So most people who trade CFDs from home, even full time and with real skill, are taxed under Capital Gains Tax rather than Income Tax. Spread betting sits further away still: winnings are treated as gambling, and BIM22017 says making a living from bets does not by itself create a trade.

The answer matters because it decides whether profits face CGT at 18% or 24% or Income Tax at up to 45% plus National Insurance, and whether losses can reduce your salary's tax bill. Below we go through HMRC's badges of trade in a forex setting, the cases that shaped the presumption, and what would change if you were treated as trading.

The presumption in BIM56850

HMRC's guidance describes three possible categories for an individual's dealings in financial instruments: investment, trading, or speculation that falls short of trading. The manual adds that speculation is not an accurate opposite of either "trade" or "investment", because a private person can carry out all sorts of transactions that are neither. For a forex trader that middle category is where almost everyone ends up. Profits on CFDs and rolling spot FX are then charged under the capital gains rules, as CG56100 explains.

The presumption is "prima facie", meaning it is the default unless the facts take the case "out of the norm". Companies are treated differently: the manual notes it is much harder for a company to argue that dealing within its objects is anything other than trading. That is one reason the individual and company positions should never be mixed up.

Three tribunal and court decisions sit behind the guidance and are listed in BIM56860. In Salt v Chamberlain (1979), a mathematics graduate who used computer forecasts for about 200 share and option deals was held not to be trading. Wannell v Rothwell (1996) concerned a former commodity futures dealer trading shares and futures from home: the High Court accepted he was trading, but found the activity was not carried on commercially, so his losses could not be set against his general income. In Manzur v HMRC (2010), a retired surgeon making 240 to 300 share trades a year through an online broker was found to be managing an investment portfolio rather than trading. Activity, knowledge and effort did not produce usable trading losses in any of them.

The badges of trade, applied to forex

HMRC's general test for whether any activity is a trade is the set of "badges of trade" in BIM20205. They were developed mostly for buying and selling goods, and fit forex awkwardly, but they are still the framework an inspector or tribunal starts from. Here is how each one reads for a currency trader.

Look at the table and you can see the problem. Most badges point the same way for every retail trader, so they do not distinguish a hobby speculator from a business. That is why, for financial instruments, the cases and HMRC's guidance focus on a different question: is the dealing organised and conducted in the way a professional dealer's business would be?

What can take a case "out of the norm"

The cases in BIM56860 point to the sort of factors that can rebut the presumption, and HMRC stresses that no single one is decisive. In a forex context they look like this:

• Professional expertise beyond a keen amateur's, such as working or having worked as a dealer, with formal training in markets.
• Organisation like a business: premises, systems, staff or contractors, proper books, business banking and a commercial plan, not a home laptop and a broker login.
• Scale and time: large volumes and many hours, though heavy activity on its own did not help in the reported cases.
• Commercial features that a private speculator does not have, such as dealing with or for customers, or access to markets on professional terms.

A retail account at an FCA-authorised broker, however busy, rarely checks these boxes, and nor does an evening routine fitted in around a UK job. Your classification as a retail client is at least consistent with dealing as a consumer rather than as a market professional. Even electing to be treated as a professional client for FCA purposes does not decide your tax status, although the evidence you gave to qualify (such as experience in the financial sector) could still be weighed alongside everything else.

What changes if you are trading

If HMRC or a tribunal accepted that your forex dealing was a trade, profits would be taxed as trading income. That means Income Tax at 20%, 40% or 45% (Scottish bands differ) plus Class 4 National Insurance at 6% on profits between £12,570 and £50,270 and 2% above, reported on the self-employment pages. Compare a £30,000 profit for a higher rate taxpayer: under CGT the bill would be £6,480 (24% of £27,000), while as trading income it would be £12,000 of Income Tax at 40% plus £1,045.80 of Class 4 NI on the profit above £12,570, a total of £13,045.80.

Losses are where trading status becomes attractive, and why most arguments about badges of trade are started by taxpayers rather than HMRC. A trading loss can, in principle, be set against your other income, including salary, in the same or previous year, or carried forward against future profits of the same trade. Strict conditions apply. The trade must be carried on on a commercial basis with a view to profit. Relief against other income is capped, generally at the greater of £50,000 or 25% of your adjusted total income, and a "non-active" trader who spends on average less than 10 hours a week on the trade is limited to £25,000 of such relief a year. Those rules exist precisely to stop people converting hobby losses into tax refunds.

Why spread betting is a different question

Spread bets are not assessed under BIM56850 at all. HMRC treats them as bets: CG56105 says no chargeable gains or allowable losses arise, and BIM56900 puts gambling profits outside Income Tax for individuals. The trading question for a bettor is governed by BIM22017, which discusses Graham v Green (1925). Its judgment includes the line "there is no tax on a habit", and HMRC's commentary is that being systematic, studying the form closely or making a living from betting does not by itself create a trade.

In practice that makes a spread bettor's position even more settled than a CFD trader's. The narrow exceptions are commercial hedging by a business (BIM56880) and someone who is effectively running a betting operation rather than placing bets. Our explainer is spread betting tax free? covers the myths that surround this.

Our view

For nearly every UK retail forex trader, the right working assumption is: CFDs are taxed under CGT, spread bets are not taxed, and trading status is not available. Payouts from prop firms are a separate case, taxed as income because you are paid for a service, which we cover in how prop firm payouts are taxed. If you believe your dealing is organised like a genuine business, take specialist advice before filing on that basis, and expect HMRC to test it. The 28 October 2026 Budget could change CGT rates, but it would take a change in the law, not a rate change, to alter the presumption itself.

Frequently asked

Related reading

• Forex trading tax in the UK
• Is spread betting tax free?
• Prop firm payouts and tax
• Report CFD gains on self assessment
• Professional client status in the UK
• Trading forex around a UK job