If a crypto exchange asks for proof of funds, confirm the request in your account or app, identify exactly what origin or transaction it wants documented, then submit authentic records that connect that source to the funds you deposited. Use the exchange’s specified secure channel; what it accepts depends on the exchange, your account and your jurisdiction.
What the exchange means by “proof of funds”
“Proof of funds” is often a broad label for records about a particular deposit or transaction. The exchange may instead—or additionally—be asking about source of funds (SOF) or source of wealth (SOW). SOF is where the money for a specific transaction came from; SOW is how you accumulated wealth overall. Kraken gives examples including income, savings, investments, property and inheritance in its source-of-funds and source-of-wealth guidance.
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For example, a bank transfer receipt may explain the immediate source of a deposit, but not how you acquired the crypto or built the wealth used to buy it. Read the request carefully and address each part it asks about. Kraken Support notes that a request does not by itself mean you have done anything wrong: “This does not mean you have done anything wrong!”
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- Verify the request and submission route. Sign in by navigating to the exchange’s official website or app yourself. Check that the request appears in your account, note its deadline, requested period and document list, and use the channel it specifies. Kraken describes requests for additional information as part of security and regulatory processes (Kraken guidance). Coinbase directs customers to submit proof through its secure portal.
- Pin down the question. Work out whether the exchange wants the origin of one deposit, how you originally acquired particular crypto, how you accumulated your wealth, or a combination. If its wording is unclear, ask through official support before sending unrelated records.
- Make a short, factual timeline. Explain the source—such as salary, savings, a sale, inheritance, investment, mining or a crypto purchase—the relevant approximate dates and amounts, and the route the funds took into the exchange. This is a practical way to organize an explanation, not a universal form required by exchanges. Use only details you can support with records.
- Attach records for both the source and the transfer path. Select evidence that answers the actual request, identifies you or your account where possible, covers the relevant dates and amounts, and connects the origin to the deposit.
- Reconcile the details before sending. Check names or account identifiers, dates, amounts, transaction records, wallet addresses and exchange statements against one another. Binance’s supporting-document guidance says evidence should be consistent with exchange statements, blockchain records or tax documents.
- Submit securely and keep a copy. Save the explanation and files you sent, along with any confirmation. If a requirement is missing or ambiguous, ask the exchange via its official support channel which document or date range it needs.
What documents do I need? Match evidence to the source
These are examples from exchange guidance, not a universal checklist or guarantee of acceptance. Follow the request for your account and region.
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| Claimed origin | Potentially relevant records | What the records should connect |
|---|---|---|
| Employment income | Recent payslips, bank statements showing salary deposits, tax documents or an employer letter, depending on the exchange and case. Kraken and Coinbase list examples in their guidance and guidance. | Show the income and, where relevant, the bank or account used to acquire or transfer the funds. |
| Savings or investments | Savings, brokerage, investment or retirement-account statements. Kraken also lists tax filings and pension award letters as possible wealth evidence in its guidance; Coinbase gives account-statement examples in its guidance. | If asked about a particular transfer, show that movement as well as the accumulation or balance source if requested. |
| Inheritance or transferred assets | Legal records showing the inheritance or transfer, and relevant bank evidence; see Kraken’s examples. | Explain how the legal transfer relates to the funds deposited. |
| Sale, rental, business or freelance income | Sale or lease documents, invoices, business records, bank statements and tax documents, as relevant. Examples appear in Kraken’s guidance and Coinbase’s guidance. | Identify the seller or owner and show the proceeds or payment path. |
| Crypto from another exchange or hosted wallet | An exchange statement or transaction records identifying you and the wallet address, as Coinbase describes in its guidance. | Show the withdrawal from the sending service and, where available, the matching receipt at the destination. If asked about original acquisition, include evidence of that too. |
| Crypto from an external or unhosted wallet | Wallet transaction history with dates, transaction type, currency, amount and wallet address, plus an identifier such as your name or email. Coinbase also lists crypto tax reports as possible supporting history in its guidance. | Explain how the assets were originally acquired if the request asks for their origin; a record of the last transfer alone may not answer that question. |
| Mining | Mining payout statements or other records confirming mining activity or ownership of equipment; see the examples from Kraken and Coinbase. | Add records of any later sale or transfer if the crypto moved through another platform. |
| Funds already held at the exchange | Kraken says to provide evidence of how the funds were earned and a record showing their transfer into the account. In some cases, one bank statement may show salary deposits and transfers; see its guidance. | Treat the single-statement example as a possibility, not a promise that one document will satisfy every request. |
How to prove where your crypto came from
For crypto, the transaction path and the original source answer different questions. A blockchain transaction can help show movement between addresses, but it may not identify you or explain how the assets were acquired. An exchange statement may identify an account and withdrawal, but it may not establish the wealth behind the purchase.
- For a transfer from another exchange, include the sending service’s withdrawal record and the corresponding receiving transaction when available.
- For an external wallet, provide the requested wallet history and identifier, then explain the original acquisition if the exchange asks for it.
- For mined crypto, include evidence of mining activity or equipment ownership and the later transaction path.
- For purchases funded by wages, savings or sale proceeds, connect the relevant source records to the account or exchange transaction used to acquire the crypto.
What if your records are incomplete or the history is complicated?
If your wealth came from several sources or built up over many years, organize the explanation by source and attach the records you have for each part. Kraken says documentation for each stream or event is helpful; layered business ownership and histories spanning years or jurisdictions can take more work to assemble. See its source-of-wealth guidance.
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If a record no longer exists, say so plainly. Give the reason if you know it, identify what alternative records you can provide, and ask the exchange whether they are useful. Do not alter statements, invent transaction history or present an estimate as a documented fact. If a date or amount is approximate, label it as approximate and explain why.
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Common mistakes to avoid
- Sending only a screenshot of the final exchange balance. A balance may show what is held now, but it does not necessarily document how the assets were acquired or transferred. Exchange examples call for source and transaction-history evidence in relevant cases (Kraken; Coinbase).
- Confusing source of funds with source of wealth. A receipt for one deposit may establish its immediate origin without explaining how you accumulated the overall wealth.
- Leaving mismatches unexplained. If names, dates or amounts differ across records, explain the reason and provide supporting context rather than assuming the exchange will infer it.
- Assuming another exchange’s list applies to yours. The examples above come from individual providers’ guidance. The actual request and requirements for your account and jurisdiction take precedence.
- Using an upload link from an unsolicited message. Navigate to the exchange independently and confirm the request in your account; Coinbase identifies its secure portal as the document-submission route.
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