About this desk
This is one site in a network of narrow, factual desks that explain how online casino and sportsbook mechanics actually work. This desk owns one topic: the financial verification layer of a gambling account — the source-of-funds and affordability checks an operator runs on the money itself.
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.
01Why this desk exists
The information a player needs when a check opens is written to convert, not to explain. Policy pages state bands without explaining them; help centres describe a hold without saying what it does to a balance; and third-party content is usually a ranking with an affiliate agenda. This desk explains the mechanism instead: the trigger, the evidence, the hold, the decision, and the clock.
- One topic, in depth. Not a portal that mentions everything and explains nothing.
- Mechanics first. Worked arithmetic and explicit steps, so nothing is asserted that you cannot re-derive.
- No rankings, no picks, no advice. And no content about which operator to use.
- Disclosure above the fold. The affiliate relationship is stated on every page, not buried in a footer.
02What this desk is not
It is as important to be clear about the boundaries. This is general information for adults, and it is deliberately narrow.
It explains mechanisms; it does not advise you on your money or your situation.
Nothing here is a method for keeping an account open without the evidence an operator asks for.
No operator is named, and no specific policy is described as current.
No outcome is forecast, and no check has a guaranteed result.
03How this desk fits the network
Each desk in this network owns a different mechanic, and they cross-link only where a reader genuinely needs the next thing. This one owns financial verification on the money; identity verification, voluntary limits, payment rails, disputes and data rights are each owned by a different desk.
04How the material was put together
The pages describe mechanisms rather than a specific operator’s terms, because policies differ and change. Where a figure appears, it is labelled as illustrative and the arithmetic is shown so it can be checked. Where a process has more than one outcome, all of the outcomes are listed rather than the most dramatic one.
A note on currency of information
Regulators revise guidance and operators revise policies, so a level or a document list you read elsewhere may be out of date. The authoritative statement for your account is the operator’s own current policy for your jurisdiction.