UK poker: what HMRC's manual and the Gambling Commission's rules actually say about tax and ID checks
Two questions dominate what British players ask about poker, and both are answered in primary documents rather than forum lore. HMRC's Business Income Manual states that having a system or making a living from gambling does not create a trade, citing a judgment about a skilful card player directly - so winnings are not trading income, with a narrow exception for players paid for a service such as a television appearance. The Gambling Commission, for its part, requires licensed operators to verify age and identity before a customer gambles, and says an operator that holds up a withdrawal for ID it could have asked for earlier may be in breach of Licence Condition 17.
British poker players ask two questions more than any others: will the taxman want a share, and why does the site want a passport. Both have published answers, and both are more precise than the usual summaries.
Tax: the manual quotes a card player
HMRC's Business Income Manual addresses the point at BIM22017. The guidance states that the fact a taxpayer has a system by which they place their bets, or is sufficiently successful to earn a living by gambling, does not make their activities a trade. It then quotes Rowlatt J in Graham v Green, a 1925 case about a man living off horse racing bets, and the passage happens to describe poker almost exactly: a skilful card player who plays today, tomorrow and the next day, who is more skilful than the people he plays with, and who wins. The judgment's conclusion is that no trade can be found in that, and the manual's own gloss is that expertise or being systematic is not enough to create a trade of professional gambling.
The practical upshot for a winning player is that the winnings themselves are not trading income. But the manual sets out a boundary that is routinely left out of summaries: some professional gamblers do carry on a trade, for example where they receive appearance money for a television programme, because that is a service provided to a customer for reward. Whether gambling winnings then form part of that trade depends on the facts.
That distinction has grown more relevant, not less. A modern player's income may include staking, coaching, streaming revenue, sponsorship and appearance fees alongside results at the table, and those are different things in tax terms from the results. None of this is tax advice, and a player whose earnings look like that has a question for an accountant rather than a glossary.
ID checks: before the first hand, not at cash-out
The Gambling Commission's player guidance on age, ID and financial verification is blunter than most operators' own help pages. All online gambling businesses must ask a customer to prove age and identity before they gamble, and a customer cannot place a bet until they have been verified. Where an account can be matched electronically against databases such as the electoral roll or credit reference agencies the check may be instant; otherwise a passport, driving licence or household bill may be requested.
The part worth knowing is the limit on when it can be demanded. The Commission states that a gambling business cannot ask a player to prove age and identity as a condition of withdrawing money if it could have asked at an earlier point, and that an operator delaying a withdrawal for insufficient ID may be in breach of Licence Condition 17 and may face regulatory action. Anti-money-laundering requests can still arise later in the relationship, but the guidance says they should be made promptly rather than saved for the moment a player tries to take money out.
The same page is candid about affordability. Licensed operators may seek bank statements or information about income patterns as part of their anti-money-laundering and customer-interaction duties, and may set deposit or loss thresholds with reference to income, using open data and official statistics to assess what is plausible. Players who find these requests intrusive should know that they are a licence requirement rather than one operator's invention.
Why it matters which site you are on
Both protections attach to the licence, not to the brand. Large gambling groups run separate entities for different markets, and their own footers say so: Grosvenor's online site states that it is licensed and regulated in Great Britain by the Gambling Commission under account number 57924 for GB customers, while customers outside Great Britain are served under Gibraltar licences held by a Gibraltar company, with a further set of Commission licences covering the land-based casinos. A player relying on Commission protections needs to be on the GB-licensed site, which is a question about the domain in front of them rather than the logo on it.
This article is general information about published rules and guidance, not legal or tax advice.
Read the original at HMRC Business Income Manual, BIM22017 →
Frequently asked questions
Do I pay tax on poker winnings in the UK?
HMRC's Business Income Manual states at BIM22017 that a system for placing bets, or earning a living from gambling, does not make the activity a trade, so winnings are not trading income. The manual notes an exception where a player is paid for a service, such as appearance money for a television programme. This is general information, not tax advice.
Can a poker site refuse my withdrawal until I send ID?
The Gambling Commission says a business cannot require proof of age and identity as a condition of withdrawal if it could have asked earlier, and that doing so may breach Licence Condition 17 and attract regulatory action. Anti-money-laundering requests can still arise, but should be made promptly.
Why do UK gambling sites ask about my income?
The Commission's guidance describes it as part of anti-money-laundering and customer-interaction duties: operators may request bank statements or information on income patterns and may set deposit or loss thresholds with reference to income. It is a licence requirement rather than one operator's policy.