Casino source of funds check before withdrawal (UK guide)
The Gambling Commission says source-of-funds checks belong earlier than your withdrawal. What it accepts at payout, what it does not, and what to send.
A UK casino can ask for source-of-funds documents when you withdraw, but the Gambling Commission’s published expectation is that such checks belong earlier: operators should seek them “where necessary and proportionate” during the customer relationship, and should not accept deposits indefinitely and then use anti-money-laundering procedures to frustrate a withdrawal.
If a casino source of funds check before withdrawal has stopped your payout in the UK, the yardstick is a blog by the Commission’s chief executive, Andrew Rhodes, posted on 18 July 2024, which this desk read on 23 September 2026. It is a statement of expectations, not a new licence condition, and this page is an evergreen explainer rather than a news report. Where the blog says “should”, this page says “should”. It does not turn that into “must”.
What is a casino source of funds check?
A source-of-funds check asks where the money you gambled with came from. It is not the same as the identity check, and the difference matters because the two are supposed to run on different clocks.
The identity check has a fixed place in the queue. The Commission’s blog quotes Condition 17.1.1 of the Licence Conditions and Codes of Practice (LCCP), which requires licensees to obtain and verify information to establish a customer’s identity “before that customer is permitted to gamble”, including name, address and date of birth. That one is a licence condition, and the word in it is “must”. By the time you have played, the operator is supposed to know who you are.
A source-of-funds question is a different kind of thing. It is part of an operator’s anti-money-laundering (AML) risk work, and the blog places it inside ongoing monitoring: operators “should monitor customer accounts on an ongoing and risk-sensitive basis” and seek source-of-wealth or source-of-funds information where the risks call for it. The blog sets no single point in the account’s life aside for it, although the LCCP 17.1.1 text it quotes adds that a withdrawal request “must not result in a requirement for additional information” as a condition of withdrawal if the licensee “could have reasonably requested that information earlier”. That is exactly why it so often turns up at the worst possible moment for the player, which is the moment they press withdraw.
The blog also sets an expectation about warning. Before a customer deposits, it says, licensees should tell them what types of identity documents or other information they may need, the circumstances in which it might be required, and the form in which it should be provided. So the first place to look, before you send anything, is the operator’s own terms: if a source-of-funds process was described at sign-up, the request at withdrawal is at least the one you were told about.
Source of funds versus source of wealth
The two terms travel together in the Commission’s text (“source of wealth and/or source of funds”), and operators often ask for both in one message. In AML practice, source of funds usually means where the particular money in your account came from, such as a salary payment or a property sale, while source of wealth means how your overall wealth was built up over time. The distinction has one hard edge that the blog spells out: under the Money Laundering Regulations 2017, source-of-wealth checks are mandatory for politically exposed persons (PEPs) and for business relationships or transactions involving a high-risk third country. Outside those cases, the Commission describes the operator’s duty as a risk-based approach.
Why does the check land at the withdrawal?
Because, too often, that is when the operator first looks. The Commission’s blog is blunt about the scale. Its contact centre receives around 2,000 complaints a year about delays to withdrawals; those delays remain “the number one subject of complaints” it receives, and they also feature prominently in cases raised with Alternative Dispute Resolution (ADR) providers. The blog adds that complaints remain low in proportion to the total amount of completed withdrawals, and that they involve small, medium and larger remote operators alike.
The regulator has already fought one version of this fight. The blog says its compliance and enforcement work led some of the operators that had generated the most complaints to change their terms, so that identity verification happens before someone can deposit and gamble, not when they try to withdraw. It also restates a line from its earlier blog: it is not acceptable for operators to introduce friction when a customer withdraws rather than when they deposit, or to put the operator’s commercial interests above the customer’s.
Source of funds is the next version of the same problem, and the blog’s worked example (below) is a source-of-funds request made only after a withdrawal, on an account that had been taking deposits for years. For the player, the effect is the same as a late ID check: the money went in on one clock and is coming out on another. Our earlier piece on why verification friction is the real withdrawal clock covers the identity side of that pattern; this page covers the money side.
When is a casino source of funds check before withdrawal legitimate in the UK?
The blog does not say a check at withdrawal is always wrong. It says some are legitimate and some are the operator catching up on work it should have done earlier. Split into two columns, with each cell taken from the blog’s own wording, it reads like this.
| Where the blog accepts a check at or after withdrawal | Where it says the operator got it wrong |
|---|---|
| Accounts monitored “on an ongoing and risk-sensitive basis”, so a new risk can prompt a new question | Deposits accepted “indefinitely”, then AML procedures used “to frustrate a withdrawal request” |
| Source-of-funds or source-of-wealth information sought “where necessary and proportionate” to the risks | Information “the operator should have sought … earlier if needed” |
| Further information the operator “could not reasonably have requested … earlier” | A request covering almost four years of deposits, made only after the withdrawal request, with no change in behaviour |
| Knowledge or suspicion of money laundering, where tipping-off rules limit what the customer can be told | No regulatory concerns about the customer, where there is “no valid reason to delay the payout” |
| Source-of-wealth checks mandatory under the 2017 regulations for PEPs and high-risk third countries | A request explained only as “for regulatory purposes”, with the specific purpose left unclear |
Read across the rows and a test emerges. A request at withdrawal sits in the left-hand column when something new has happened: a risk that was not there before, a trigger the regulations make mandatory, or a suspicion the operator cannot discuss. It sits in the right-hand column when nothing has changed except that you asked for your money.
That test has limits, and they are worth stating. A player cannot see the operator’s risk assessment, and the blog accepts that where there is knowledge or suspicion of money laundering offences there is “a statutory need” to make sure customers are not tipped off. So a short, uninformative answer is not proof that an operator is in the wrong column. It is a reason to ask the question in writing, and to keep the answer.
The four-year example, read as a clock
The blog’s worked example is the clearest statement of what the regulator objects to, and it reads best as a sequence of clocks, because that is how the customer lived it.
- For almost four years, the customer deposited. The blog says it does not appear that suspicions were triggered by any of that depositing behaviour.
- The customer asked to withdraw their winnings. There had been no change in their behaviour at that point.
- Only then did the operator ask for information going back almost four years on the source of the customer’s income and account deposits.
- The operator let a certain amount be withdrawn but sought to withhold the majority of the balance until its source-of-funds requests were met.
- The operator eventually paid out all the winnings once it had obtained a Defence Against Money Laundering (DAML) from the National Crime Agency (NCA).
The blog’s lesson follows directly: operators should not keep accepting deposits and then rely on AML procedures to frustrate a withdrawal “where the operator should have sought that information earlier if needed”. Note what the example leaves out. The passages this desk read give no duration for any step in it, including how long the DAML took, so this page does not print one. The ending, all winnings paid, belongs to the example; it is not a promise about your account.
How long does a source of funds check take?
There are three clocks, and only one of them is yours.
The first is the document clock. It starts when the request arrives and stops when the operator has everything it asked for, in a form it accepts. You hold this one. Gathering several months of statements is quick for some people and slow for others, and a blurred scan or a cropped page can send you back to the start.
The second is the review clock, which the operator holds. The passages of the Commission’s blog this desk read give no timescale for a source-of-funds review. The only number found in this desk’s reading is an operator’s own: bet442’s page on source of funds checks says most casinos try to handle them “typically within 24 to 72 hours” if all the necessary documents are supplied, and that some may take longer at busy times or if further details are needed. The passage read cites no regulator source for that figure. Treat it as a published claim to hold that operator to, not a rule to hold anyone else to.
The third is the rail clock, which starts only after the check clears and the withdrawal is approved. That is where your payment method, and the calendar, take over, and where the operator’s own pending window may still run first. Our explainer on why a casino withdrawal can stay pending covers that stage in detail.
The practical point is that “72 hours” from an operator describes the second clock at best. If a request sits unanswered for days after you have sent everything, it is the operator’s clock that is running, and it is reasonable to ask in writing what it is waiting for.
What to send, and what to ask first
Each operator sets its own document list, and the request you receive is the specification. As an example of what one operator publishes, bet442’s blog lists:
- bank statements “usually from the past three to six months”, showing your name, account details and incoming payments;
- payslips “typically within three months”;
- for the self-employed, tax returns such as an HMRC SA302, invoices or business bank statements;
- for one-off sums, letters confirming an inheritance, proof of a property sale, pension statements or documentation of lottery wins.
Before sending, three questions are worth putting to the operator in writing, because the Commission’s blog says operators should make “proper efforts” to explain to customers what the checks and restrictions are.
- What is the request for? The blog criticises operators that say only that information is needed “for regulatory purposes” without making the purpose clear. Asking which deposits, which period and which risk the request concerns is not obstruction; it is the explanation the regulator expects you to be offered.
- What period does it cover? A request for recent statements covering a specific deposit is a different thing from a request for years of income history. The four-year example is exactly the second kind.
- Can any of the balance be paid now? In the blog’s example, the operator allowed a certain amount to be withdrawn while it pursued the rest. Asking costs nothing.
Bet442’s own page is candid about the other side: if requested documents are not sent, it says, an account may be restricted, withdrawals paused or the account temporarily frozen until checks are complete. Refusing to engage rarely shortens any of the three clocks.
If the check looks like it should have come earlier
If your case sits in the right-hand column of the table (years of deposits, no change in behaviour, and a sudden request for your financial history the moment you withdraw), the route is the same as for any other withdrawal dispute. Complain to the operator first, through its own published complaints process, and keep everything in writing, including the reason it gave you. If that does not resolve it, the next step is an ADR provider; the Commission’s blog notes that withdrawal delays already feature prominently in ADR cases. Our guide to whether a casino can refuse to pay out winnings sets out that complaint sequence step by step.
When you write the complaint, quote the regulator. The blog’s line that operators “should not, however, continue to accept deposits indefinitely and then seek to rely on their AML procedures to frustrate a withdrawal request” is the sentence a case like the four-year example turns on. It is an expectation, not a right you can enforce by quoting it, but it is the regulator’s own description of the conduct you are complaining about.
Source of funds questions, answered
Why is a casino asking for source of funds?
Usually because its anti-money-laundering risk assessment says it needs to know where deposited money came from. The Gambling Commission expects operators to monitor accounts on an ongoing, risk-sensitive basis and to seek source-of-funds or source-of-wealth information where necessary and proportionate. It also expects them to explain what the checks are, rather than citing “regulatory purposes” alone, unless tipping-off rules limit what they can say.
How long does a source of funds check take?
No regulator-set timescale appears in the Gambling Commission blog passages this desk read on 23 September 2026. The only figure found is an operator’s own: bet442’s blog says most casinos try to handle the checks “typically within 24 to 72 hours” when all documents are supplied, and may take longer at busy times. Treat that as one operator’s published claim, not a rule, and not a clock that starts before your documents land.
What documents do casinos accept for source of funds?
Each operator sets its own list, so read the request itself. As one example, bet442’s blog lists bank statements “usually from the past three to six months”, payslips “typically within three months”, tax returns such as an HMRC SA302, invoices or business bank statements for the self-employed, and letters or statements covering inheritance, property sales, pensions or lottery wins.
Can a casino hold my winnings until I prove source of funds?
It can pause a withdrawal while a check it genuinely needs is completed; bet442’s own page says accounts may be restricted or withdrawals paused until checks finish. But the Gambling Commission says that where an operator has no regulatory concerns about a customer there is “no valid reason to delay the payout”, and that AML procedures should not be used to frustrate a withdrawal the operator should have checked earlier.
What is the difference between source of wealth and source of funds?
In anti-money-laundering practice, source of funds usually means where the particular money you deposited came from, such as a salary payment, while source of wealth means how your overall wealth was built up. The Commission’s blog uses the two side by side and notes that under the Money Laundering Regulations 2017 source-of-wealth checks are mandatory for politically exposed persons and high-risk third countries.
A source-of-funds request is the one withdrawal clock the player partly holds: send what is asked, ask what it is for, and put the times on the record. Play with money you can afford to lose, set your limits before you deposit rather than after, and remember that a quicker payout only helps if the play before it was affordable. 18+, GambleAware, UKGC-licensed operators only.