UK Online Casino Rules 2026: Licensing, Limits, Tax

The legal framework

Online casino gambling in Great Britain is governed by the Gambling Act 2005. The Gambling (Licensing and Advertising) Act 2014 changed one important thing: remote gambling is now regulated where the player is, not where the operator is based. In practice that means any company selling casino games to people in England, Scotland or Wales needs a licence from the Gambling Commission, whether it runs its business from London, Gibraltar or Malta.

Northern Ireland is a separate case. Gambling there is a devolved matter covered by the Betting, Gaming, Lotteries and Amusements (Northern Ireland) Order 1985, amended in 2022. The Commission says it has no powers to investigate or prosecute in Northern Ireland, and its only regulatory role there is the National Lottery. Everything below applies to Great Britain.

Who regulates online casinos

The Gambling Commission licenses and regulates gambling businesses in Great Britain, including remote gambling. Online casinos need a remote casino operating licence, which covers casino games offered through a website, app or other online service, including slots, roulette, blackjack and poker.

A licence is not a one-off approval. It comes with licence conditions and codes of practice that the operator must keep meeting, and the Commission publishes regulatory actions it has taken against licensees. A company operating without a licence is acting illegally, and you would not have the consumer and gambling protections that come with a licensed site.

What players need to know

Age and identity checks

You must be 18 or over to gamble online. Since 7 May 2019, licensed operators have had to verify your age before you can deposit, gamble or even play free demo versions of their games. At minimum they must check your name, address and date of birth. They also have to tell you, before you deposit, what documents they might ask for and when. An operator should not hold back a withdrawal to ask for ID it could have requested earlier.

Stake limits on online slots

Online slots now have a maximum stake per game cycle. The £5 limit for players aged 25 and over went live on 9 April 2025, and a £2 limit for 18 to 24 year olds followed on 21 May 2025. The caps apply only to slots, not to table games such as roulette or blackjack. There is also a minimum of 2.5 seconds between game cycles.

Deposit limits

From 31 October 2025, operators must prompt you to set a financial limit before your first deposit and make it easy to review and change that limit later. From 30 June 2026, the term "deposit limit" can only be used for a limit based on how much you pay in over a set period, so a tool sold under that name should do exactly that.

Bonuses and promotions

Two changes to promotions took effect on 19 January 2026. Wagering requirements are now capped at 10 times, so a bonus can no longer require you to re-stake it 30, 40 or 50 times before you can withdraw. Mixed product promotions, which require you to play more than one product (for example betting and slots) to unlock a bonus, are banned. MyCasinoGuru does not publish UK bonus offers at present; our reviews focus on licensing, payments and player protection.

Credit cards

Licensed operators have not been allowed to accept credit card payments for gambling since 14 April 2020. They can only accept e-wallet payments where the e-wallet prevents credit card use for gambling. Debit cards, bank payments and e-wallets funded from a bank account remain available.

Advertising

Since 1 October 2022, gambling ads must not be likely to have strong appeal to under-18s. That rules out top-flight footballers, reality TV stars popular with teenagers and video game imagery aimed at younger audiences. Complaints about gambling ads go to the Advertising Standards Authority.

Tax on winnings

For players, gambling winnings are tax-free. The Gambling Commission states that winnings are tax-free for customers regardless of the amount won. The tax burden sits with operators, who pay duties on their gambling profits. The government raised Remote Gaming Duty from 21% to 40% from 1 April 2026; the government's policy paper says players could feel this indirectly if operators pass it on through odds or return to player.

This is general information, not tax advice. If gambling forms part of a trade or your circumstances are unusual, speak to an accountant.

How to complain or dispute

Complain to the casino first, using its published complaints process. It has 8 weeks to resolve your complaint from the day it receives it.
Keep records: screenshots of your account, emails, chat transcripts and the relevant terms.
If you are still unhappy after 8 weeks, or the casino sends a deadlock letter, take the complaint to an Alternative Dispute Resolution provider. ADR is free and independent. The casino should tell you which provider it uses.
If you cannot get that information, or you think the operator is breaking its licence conditions, contact the Gambling Commission.

ADR only works with licensed operators. If a site is not on the register, there is no British regulator to escalate to, which is one of the strongest reasons to check before you sign up.

Red flags of an unlicensed site

No licence statement in the footer, or a statement that does not link to the Gambling Commission public register.
A licence from another regulator only, such as Curaçao or Anjouan, while the site still accepts British players. Overseas operators need a Commission licence to serve Great Britain.
The domain you are on is not listed against the licensed business on the register, or is marked Inactive.
Credit card deposits accepted, or no age check before you can deposit or play demo games.
Marketing that says the site is "not on GAMSTOP". Since 31 March 2020 all online operators licensed by the Commission must take part in GAMSTOP, so a site promoting this is telling you it sits outside British regulation.
Slot stakes above £5 a spin, or bonus terms with wagering above 10 times.

If something looks wrong, our guide on how to check a UK casino licence walks through the register step by step.

Online casino rules in the UK: what players need to know