British retail traders comparing providers in 2026 run into an unusual problem: on paper, the offers look nearly identical. That is by design.
The 2018 product intervention by the European Securities and Markets Authority, retained and then extended by the Financial Conduct Authority after Brexit, standardised most of what used to separate one firm from another. Leverage on major currency pairs is capped at 30:1 for retail clients and lower elsewhere. Negative balance protection is mandatory. Margin close-out triggers at 50 percent of the required margin. Bonuses and trading incentives are banned outright.
Strip out everything the regulator has already fixed, and what remains is a narrower, more technical comparison than most review sites are willing to make.
Authorisation is a filter, not a feature
Any firm marketing to UK retail clients should appear on the Financial Services Register with permissions covering retail derivatives. The check takes ninety seconds and rules out the clone-firm problem, where a fraudulent operation borrows an authorised firm’s registration number and address. What the register cannot tell you is anything about the service itself. It is a gate rather than a grade, and treating an FCA number as a quality signal is the most common analytical error in this market.
Where the variance actually sits
Cost comes first and is routinely misread. Headline minimum spreads describe conditions that exist for a few hours a day in quiet markets. What matters is the typical spread on the instruments you trade at the hours you trade them, plus overnight financing, which, on a position held for several weeks, will quietly exceed everything paid at entry.
Platform range comes second. A serious online CFD trading platform now generally means a proprietary web and mobile interface alongside MetaTrader 4 or 5 and, increasingly, TradingView integration, because traders arrive with established charting habits and no intention of abandoning them. Instrument coverage across indices, shares, commodities, and bonds ranges from a few hundred to several thousand contracts depending on the firm.
Execution transparency comes third and separates the field more than either of the others, because only a minority of firms publish fill quality, slippage distribution, or rejection rates in any form. Under best execution rules, every firm must have a policy. Publishing meaningful data about how that policy performs in practice is a choice, and a revealing one.
Read the risk warning as data
UK providers must display the percentage of their retail accounts that lose money, and the figures typically land between 65 and 80 percent. Read across a dozen firms, this is one of the very few standardised, directly comparable datasets British retail traders are handed for free.
It is not a quality ranking, since client mix and product mix both move the number. But a figure at the top of that range at a firm marketing heavily to beginners tells you something worth knowing about who is on the other side of that order flow, and about what the firm’s economics depend on.
One structural detail to settle before opening an account
In the UK and Ireland, spread betting is a functionally similar product to CFDs with different tax treatment for most retail participants and separate documentation. Several firms offer both under one relationship; others offer only one, and the structural differences between spread betting and CFD trading run deeper than the tax line most comparisons stop at.
That distinction will affect post-tax outcomes more than a fraction of a pip in spread ever does; it depends on individual circumstances, and it is effectively decided at account opening rather than revisited later.
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. The majority of retail investor accounts lose money when trading CFDs. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money. Tax treatment depends on individual circumstances and may change in the future. This article is for informational purposes only and does not constitute investment or tax advice.
