Online casinos in the UK must check where customer money comes from, following strict rules set by the Gambling Commission.
You may have noticed a request for bank statements or payslips when you sign up, or before you withdraw, and it’s normal to wonder why these checks are needed.
This article explains why these rules exist, how the checks are carried out, and what they mean for your experience when playing online. Understanding the process can help you feel more informed and confident when using gambling sites.
Why Do Online Casinos Ask for Proof of Income?
UK online casinos follow rules from the Gambling Commission to help keep gambling safe. One key rule is the need to check that players’ spending matches what they can afford.
If a casino asks you for proof of income—like a payslip or bank statement—they are making sure you are spending money that you can comfortably afford.
These checks, also known as source of funds checks, help prevent gambling-related harm and stop money from illegal sources making its way into the gambling system. This way, casinos aim to both protect players and help tackle financial crime.
How Do Casinos Verify Source of Funds?
Casinos verify your source of funds to make sure the money you’re using to gamble comes from a legitimate and legal source. This is a legal requirement under anti-money laundering regulations and helps keep gambling safe and crime-free.
If a casino needs to check your source of funds, they’ll ask you to upload documents through a secure area of the site. This could include:
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Recent bank statements showing regular income
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Payslips from your employer
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Evidence of savings, inheritance, or the sale of an asset (if relevant)
The casino’s compliance team will review the documents to ensure your spending makes sense compared to your income. They’ll also check that the name on the documents matches your account details.
If you're asked for this information, it’s nothing unusual—it’s simply part of the standard process used by all UK-licensed casinos to meet their legal obligations. Providing clear, up-to-date documents can help avoid delays and keep your account running smoothly.
What Counts as Acceptable Proof of Funds?
Here are some common documents that casinos usually accept:
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A bank statement showing your name and recent balance
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Recent payslips from your job
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Tax returns or pension statements
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A house sale completion statement (if your funds come from a property sale)
All these are used to show your money comes from a clear and legal source.
Is It Safe to Share Financial Documents with Casinos?
If you play at a UK-licenced casino, your details are handled under strict data protection laws. Look for a UK Gambling Commission (UKGC) licence on the site—regulation means they must use secure technology to guard your personal information. You will usually find the licence number at the bottom of the casino website.
Legitimate casino sites offer a privacy policy and use encryption to prevent access by unauthorised parties. As a tip, check for a padlock symbol in your browser's address bar. Tools like these help to keep your personal details safe during the document process.
What Happens If You Refuse to Provide Proof of Funds?
Without proof of funds, a UK online casino may block your account until documents are received. As a result, you may not be able to deposit, withdraw, or play any games.
Any balance in your account might remain frozen until the process is complete. These are standard steps all regulated casinos must follow, as set out in their terms and conditions.
If you are unsure what is expected, check the casino's rules or refer back to earlier explanations for why these checks are important.
Can You Still Withdraw Winnings Without Proof of Income?
If you ask to withdraw your winnings and the casino needs to review your payments, you could be asked again for proof of income or proof of funds, especially if the amount is higher than usual.
If the requested paperwork is not provided, the casino will likely pause your withdrawal while your documents are reviewed, following UKGC requirements.
Their approach may differ depending on the casino, so reviewing their terms and conditions (as previously suggested) can help you understand their specific process.
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*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to these games are subject to change at any time. Game features mentioned may not be available in some jurisdictions.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.