Online casino guides
Online casino guides for UK players: how to choose a licensed casino, sign up, pass ID checks, deposit, withdraw and complain if something goes wrong. Each guide follows the Gambling Commission’s rules and explains them in plain steps.
By the BonusKing editorial team. Last checked .
What our online casino guides cover
These online casino guides walk through the practical side of playing at a UK casino, in the order you meet it: choosing a site, opening an account, verifying who you are, paying in, playing, getting paid and sorting out problems. They sit alongside our game pages, which deal with rules and odds, and our UK rules section, which covers the regulations in detail.
If you’re brand new, the beginner’s guide to online casinos is the best first read. If you already play and want to check a site, go straight to how to choose an online casino. Every guide is checked against Gambling Commission and GOV.UK sources and shows the date it was last reviewed, because the rules have changed several times since 2025.
The UK online casino journey, step by step
| Stage | What UK rules say | Our guide |
|---|---|---|
| Choosing | The operator must hold a Gambling Commission licence to serve Great Britain | Check a licence |
| Signing up | Age and identity must be verified before you can deposit or play, including demo games | Account verification |
| First deposit | Since 31 October 2025 you’re prompted to set a financial limit before your first deposit | How to sign up |
| Paying in | No credit cards, including e-wallets funded by one | Payments hub |
| Withdrawing | You can withdraw at any time without unreasonable delay, and can’t be offered to reverse a withdrawal | How to withdraw |
| Complaining | The casino has 8 weeks to resolve a complaint, then must offer free ADR | Casino complaints |
Sections
All pages in this section
Before you play: three checks worth making
- Look up the licence. Search the operator on the Commission’s public register and confirm the domain is listed against it.
- Find the funds protection rating. Casinos must tell you whether your balance is not protected, or has medium or high protection, before your first deposit is used.
- Set your limits first. Deposit, loss and time limits are easier to set before you start than in the middle of a session. Our safer gambling section shows where each tool lives.
It also helps to know how a game works before you stake real money. Our guide to reading game rules shows where to find the RTP, the pay table and the rules for disconnections on any UK game.
If something goes wrong with an online casino
Start with the casino’s own complaints process and keep a record of dates and messages. If it isn’t resolved within 8 weeks, the casino must offer referral to an approved alternative dispute resolution provider, which is free for you; IBAS, for example, can make decisions binding on registered companies up to £10,000. The Commission doesn’t settle individual disputes, but its guide on how to complain about a gambling business (opens in a new tab) sets out each step, and our complaints and ADR page explains your rights.
18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
How do I know an online casino is safe to use?
Check that it holds a Gambling Commission licence by searching its name or web address on the public register, and confirm the licence is active. A licensed casino must follow UK rules on fair games, ID checks, safer-gambling tools and complaints. Avoid sites that can’t show a UK licence. Our guide on how to check a licence shows the register fields to look at.
Why does a casino need my ID before I can play?
UK rules require online casinos to verify your age and identity before you deposit or gamble, including on free-to-play demo games. Most checks happen automatically against databases such as the electoral roll, and you’re asked for documents only if those don’t confirm you. Our guide to casino account verification explains which documents are commonly accepted.
Can I play free casino games in the UK?
Yes, many casinos and developers offer demo modes, but in Great Britain you must be age-verified before you can open them. Demo games use play money, so nothing is won or lost, which makes them a sensible way to learn a game’s rules. Our demo play guide explains how demo versions work and how they compare with real-money games.
What can I do if a casino won’t pay my withdrawal?
First, ask the casino in writing why it is holding the payment, and send any documents it needs. If the issue isn’t settled through its complaints process within 8 weeks, ask for referral to its alternative dispute resolution provider, which is free. UK rules say a casino can’t keep your money because you missed a deadline to log in or verify. See our casino complaints guide.
Is a casino app better than a mobile site?
Neither is better for your odds, because the games and rules are the same. Apps sit on your home screen and are downloaded from an app store, while mobile sites need no download and update automatically. The same UK rules on stakes, limits and verification apply to both. Our guide to casino apps compares the two in more detail.