What a source-of-funds check actually is
It is a request for evidence: documents that tie the money in your account to a named, legitimate source over a defined period. It is a financial verification step a licensed operator runs under its anti-money-laundering duties and licence conditions — not a fee, not a penalty, and not an accusation.
Affiliate disclosure and risk warning
Every affiliate link on this page and in the header is a sponsored link to a partner operator, and we may be paid if you open an account through it, at no extra cost to you. That link pays us; it does not improve any decision, it is not a ranking, and it is never a recommendation to play. Nothing on this page is financial, legal or tax advice, and nothing here is a way to avoid a source-of-funds or affordability check, to satisfy one without the documents, or to predict how one will end. 18+ only. Every stake is money at risk and can be lost in full. The mechanics explained here — what a source-of-funds or affordability check is, what triggers one, the deposit and income levels operators publish, which documents count as evidence, what happens to an account and any withdrawal while a check is open, what your options are if you decline, and how long a decision should take — are general descriptions of how that scrutiny usually works, not a statement of the terms, thresholds or timelines that apply to you: the triggers, the evidence required and the timelines differ between operators, jurisdictions and regulators and change over time, and a decision is made by the operator, not by this site. This page does not name any operator and is not a substitute for the operator's terms, any regulator's rules or advice from a qualified adviser. Nothing here is a way to guarantee an outcome, a way to unlock a frozen balance, or a way around any operator's terms, any regulator's requirement or any law. Never stake money you cannot afford to lose, never borrow to play, and never chase losses with a larger stake. Gambling can cause serious financial harm, including debt and damage to relationships and mental health. Free and confidential support is available in most countries through national gambling-harm helplines, for players and for the people around them.
01The definition, and the two questions underneath it
A source-of-funds check is the operator asking you to evidence where the money you deposited came from. Two distinct questions often arrive in the same request, and keeping them apart is the single most useful thing you can do when a check opens.
Source of funds looks backwards: it wants documents showing that the money already in the account came from somewhere legitimate and identifiable — earnings, savings, a sale, an inheritance. Affordability looks sideways: it compares what you are staking with what you can afford, which is a ratio of deposits and losses to income and outgoings rather than a fixed sum. The first is answered with paperwork about origin; the second is answered with a picture of your financial position over time.
- Source of funds
- Where did the deposited money come from, and can you evidence it?
- Affordability
- Is staking this amount consistent with your income and outgoings?
- The trigger
- Usually a published deposit band for source of funds; a period of higher activity for affordability.
- The hold
- Deposits and withdrawals normally pause while either question is open.
02The machinery: request, evidence, decision
However an operator words it, the machinery has the same three stations. A request is issued — usually in writing, usually naming a period and a set of documents. Evidence is supplied, and the review clock only runs properly from the point the operator has what it asked for. Then a decision is made from a small, documented set of outcomes.
03Why this is not a KYC check
KYC answers who you are; source of funds answers where the money came from. The two are frequently bundled into one email, which is why players often re-send a passport and wonder why the review has not moved. A passport proves your identity; it says nothing about the origin of a deposit, so it does not answer a source-of-funds question.
| Identity (KYC) | Source of funds / affordability | |
|---|---|---|
| Question asked | Who is this person? | Where did the money come from, and is it affordable? |
| Typical evidence | Passport, driving licence, proof of address | Payslips, bank statements, tax return, savings records |
| Triggered by | Sign-up, a withdrawal, or a name mismatch | Published deposit levels, patterns, periodic review |
| Settled by | A document matching the account holder | Evidence covering the period the operator asked for |
Why sending the same ID again does not help
If the outstanding item is financial, more identity documents are not evidence about where the money came from. The fastest route is to ask, in writing, which specific document is outstanding and for which period — then supply exactly that.
04Who sets the rules the operator is applying
The check is not invented by the operator in the moment. Licensed operators operate under anti-money-laundering and responsible-gambling duties set by the regulator that licenses them, and they translate those duties into internal policies with published trigger levels and evidence requirements. That is why the same deposit figure can produce a check on one site and not another: the licence, the jurisdiction and the operator’s own risk appetite all differ.
It also explains why the rules move. Regulators revise guidance, operators tighten policies, and a level that was quiet last year can be active this year. The only current statement about your account is the operator’s own policy for your jurisdiction, read at the time the request arrives.
What to read, and in what order
Start with the operator’s anti-money-laundering or source-of-funds policy page, then the complaints and dispute page. Those two documents tell you the trigger, the evidence, the timeline and the escalation route in that operator’s own words.
05What a check cannot do
It is as useful to know the boundaries as the mechanics. A check is a verification step with a documented end, and several things that players fear about it are simply not part of the process.
- It cannot take your balance. A check is not a forfeiture. If the account is closed, the remaining balance is returned to you.
- It cannot run forever. A review resolves. If it appears to be stalled, that is a question about the outstanding document, not a permanent state.
- It cannot lock you out of support. Operators still have to answer questions about a check while it is open, and every jurisdiction has an escalation route.
- It cannot demand documents you cannot lawfully obtain. You are asked to evidence your own funds. Evidence of someone else’s money is not what the check is for.
Why this particular account was asked
Levels, patterns and periodic reviews are the three families of trigger — and knowing which one applies tells you what evidence is actually relevant.
- 1General information about mechanisms, for adults; not financial, legal or tax advice.
- 2Triggers, evidence and timelines are set by the operator and its regulator and differ between jurisdictions and over time.
- 3Nothing here is a way to avoid a check or to predict its outcome.