Great Britain has one of the largest regulated online casino markets in the world, and some of the strictest player protection rules. Any casino that serves British players needs a licence from the Gambling Commission, and advertising unlicensed gambling is a criminal offence. This guide explains how the rules work, how to check a licence, what GAMSTOP and the newer stake and bonus rules do for you, how winnings are taxed and where to find help.
Is online gambling legal in the UK?
Yes, for adults aged 18 and over at licensed operators. The Gambling Act 2005, as amended by the Gambling (Licensing and Advertising) Act 2014, requires any operator whose games are used by people in Great Britain to hold a remote licence from the Gambling Commission, wherever the company itself is based.
Gambling offered to British players without that licence is unlawful. Under section 330 of the Gambling Act it is an offence to advertise unlawful gambling, which covers websites and affiliates that promote unlicensed casinos to people in Great Britain. In July 2026 the government also launched a consultation on banning gambling operators not licensed in Great Britain from sponsorship and advertising arrangements across all sectors.
Northern Ireland has its own, older gambling law, but in practice online operators serving UK players hold a Gambling Commission licence and apply the same protections.
Who regulates online casinos in the UK?
The Gambling Commission, based in Birmingham, licenses and supervises gambling businesses in Great Britain. It sets the licence conditions and codes of practice that operators must follow, investigates breaches and can impose large financial penalties or revoke licences. It also works with internet platforms, search engines and payment providers to disrupt illegal gambling.
Advertising content is also governed by the CAP and BCAP codes enforced by the Advertising Standards Authority, which, for example, bans gambling adverts that strongly appeal to under-18s.
How can you check whether an online casino is licensed in the UK?
The Commission's public register makes this straightforward, and it is worth doing before you open any account.
- Scroll to the footer of the casino and note the company name and Gambling Commission account number.
- Search for that name or number in the public register on gamblingcommission.gov.uk.
- Check that the licence is active and that the exact domain you are on is listed under it.
- Confirm that the site offers GAMSTOP, deposit limits and links to support services. Licensed sites must provide them.
- If the site shows only a licence from another country and still accepts British players, it is not licensed in Great Britain.
What protection do players get at UK licensed casinos?
Licensed operators must verify your age and identity before you can deposit or play. They have to monitor for signs of harm, carry out financial risk checks at higher spending levels and interact with customers who may be at risk.
Recent reforms added firm limits. Online slots have maximum stakes per spin of 5 pounds for players aged 25 and over and 2 pounds for players aged 18 to 24. Since January 2026 wagering requirements on bonuses have been capped at ten times, and operators may no longer combine gambling across different products in a single bonus offer. Credit cards have been banned for gambling since 2020.
GAMSTOP is the free national self-exclusion scheme for online gambling. You can exclude yourself from every licensed online operator for six months, one year or five years, and the exclusion cannot be lifted before the period ends.
- Age and identity checks before you deposit
- Online slot stake limits of 5 or 2 pounds per spin depending on age
- Bonus wagering capped at ten times
- GAMSTOP self-exclusion across all licensed online operators
- Independent dispute resolution for unresolved complaints
What are the risks of unlicensed online casinos?
A casino without a Gambling Commission licence is outside British supervision. It does not have to follow the stake limits, the bonus cap, the identity checks or the complaints process described above, and you cannot take a dispute to an approved alternative dispute resolution provider.
Unlicensed sites are also not connected to GAMSTOP. The Gambling Commission has warned that such sites often target people who have self-excluded, which makes them particularly harmful for anyone trying to stop.
Do you pay tax on gambling winnings in the UK?
No. Players in the UK do not pay income tax or capital gains tax on gambling winnings, and you do not need to declare them. Licensed operators pay Remote Gaming Duty on their profits instead.
Money you keep can still matter for tax in other ways. Interest earned on winnings held in a savings account is taxable in the usual way, and large sums can affect inheritance tax planning. Professional gamblers are generally treated the same as anyone else, but if gambling is part of a wider business, take advice from a tax adviser.
Which payment methods do UK licensed casinos accept?
Visa and Mastercard debit cards are the most common, alongside PayPal, Apple Pay, Trustly and other open banking payments, bank transfer and paysafecard. Everything is in pounds and must come from an account in your own name.
Credit cards cannot be used, directly or through an e-wallet. A site that accepts credit cards or only takes cryptocurrency is not following British rules.
Where can you get help with gambling in the UK?
The National Gambling Helpline, run by GamCare, is free, confidential and open 24 hours a day. Call 0808 8020 133 or use the live chat on gamcare.org.uk. Specialist NHS gambling clinics provide treatment in England, and GamCare can direct you to support across the UK.
To block online gambling, register with GAMSTOP on gamstop.co.uk. Most UK banks also let you block gambling payments from your card in their app.
Myths vs facts
- Myth: A Cura莽ao or Malta licence is enough to accept British players.
- Fact: Any operator whose games are used by people in Great Britain needs a Gambling Commission licence. Without it the gambling is unlawful, and advertising it is an offence.
- Myth: You have to pay tax on big casino wins in the UK.
- Fact: Gambling winnings are not taxed for players in the UK. The operator pays gambling duty instead.
- Myth: Bonuses at UK casinos still come with 40x or 50x wagering.
- Fact: Since January 2026 wagering requirements at licensed operators have been capped at ten times the bonus.
- Myth: You can cancel GAMSTOP if you change your mind.
- Fact: The exclusion lasts for the full period you choose, six months, one year or five years, and stays active until you ask for it to end after that period.
Before you claim
- The operator and domain appear in the Gambling Commission public register
- The licence is active and the footer shows the account number
- You are asked to verify your age and identity before depositing
- The site offers GAMSTOP, deposit limits and links to support
- Bonus wagering is ten times or less
- Payments are by debit card, PayPal, bank or similar, never credit card
- You have the National Gambling Helpline number saved: 0808 8020 133