Source of funds is the documented origin of the specific money in a transaction — where it came from, from whom, and on what basis. In crypto that means the trade, salary, sale or settlement that produced the coins, evidenced by records a third party can read without taking your word for anything. It is the difference between a deposit review that closes in days and one that does not close.
Every venue that holds crypto asks this question sooner or later, and they all ask it the same way: with a form and a deadline. Binance describes withdrawals placed under review, with users asked for identity verification or a questionnaire (Binance support). HTX describes an account restricted by its AML risk-control system, resolved by completing a security questionnaire with a review inside five working days (HTX support). OKX describes restrictions on selling and withdrawal during risk control, with an appeal typically unfrozen within one to three working days once the account is assessed as risk-free (OKX help).
What those processes have in common is that they end with documents, not with persuasion. The people who get through them quickly are the ones who wrote things down at the time of the deal, when it cost nothing.
A screening result is the other half of the answer. Source of funds says where the money came from; the check says what the sending address is connected to — named categories, the attributed entity where there is one, the network, the date. Together they make a file that survives a question.
The workspace produces that as a signed report you can forward to the venue, the bank or the counterparty asking, without exporting anything by hand. For a single address, the Telegram bot returns the same verdict free, three checks a day.
Exportable records beat screenshots. A screenshot is an image of a claim; a statement, an invoice or a signed report is evidence.
While a review is open, leave the funds where they are and answer the questions. Moving a balance to another account or another venue during an open review reads as evasion, and it turns a routine request into a long one.
Source of funds is the origin of the specific money in this transaction. Source of wealth is how the person accumulated their overall assets. Enhanced due diligence usually asks for both; a deposit review usually asks for the first.
Answer with documents, keep the funds where they are, and do not open another account or route the balance elsewhere while the review is open. Published processes at the major venues run in days once the paperwork is complete.
Not to give the counterparty, but keep your own record: order ID, platform, timestamps and the screening result. That file is what you hand a venue later if the deposit is questioned.
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It is not the origin document, but it is the risk record that belongs beside it — dated, signed and forwardable, showing what you checked before you accepted the money.
Send any wallet to the Telegram bot and get a verdict in seconds. Three checks a day, free, no signup. Desks that screen every deposit run it on plans from $199/mo.