Crypto Proof of Funds: Documents Exchanges May Request

First Identify Which Proof It Means

The phrase is used inconsistently in support messages. Ask what fact the provider needs established if the request is vague.

Proof of current balance does not explain the source of a past deposit. Conversely, a tax return showing historical income may not prove that a present account holds enough funds. Source of Funds versus Source of Wealth deserves separate treatment if both are requested.

Documents for a Fiat-Funded Crypto Purchase

For a bank-funded purchase, the reviewer often needs to see the payment chain. The following records answer different questions.

Coinbase’s Source of Funds document guidance lists examples for fiat funding, crypto deposits and different wealth sources. These are examples of what one provider may accept, not a rule that every exchange must accept a particular document. Some providers specify a recent statement period or require an unredacted copy; follow the actual notice.

Documents for a Crypto-to-Crypto Deposit

If assets arrived from another exchange or a self-hosted wallet, a bank statement alone may leave a gap. Build a small set with distinct roles:

1. The sending exchange’s account statement shows the holder and withdrawal.
2. The trade report shows how the withdrawn asset was acquired.
3. The complete transaction hash and network show the on-chain transfer.
4. Wallet history shows intermediate inflows and outflows, if a wallet or bridge was used.
5. The receiving exchange’s deposit record matches the amount and time, allowing for network fees.

An internal transfer between two accounts at the same service may not have a public blockchain hash. In that case, obtain the platform’s internal reference and statements. For P2P trades, retain the order, payment, counterparty details available to you and receipt of crypto. For mining or staking, retain platform or pool payouts and the wallet trail. A step-by-step transaction chain is explained in How to Prove Source of Funds for Crypto.

Documents for Less Common Sources

Gift or Inheritance

A gift letter or estate document should identify the giver or estate, the recipient, amount, date and basis of the transfer. Pair it with the bank credit or crypto transfer. A letter alone may not prove actual receipt. The platform may seek information about the original owner under its own rules.

Business Proceeds

Company registration, financial statements, invoices or tax filings can explain business revenue. Show how the value reached the account holder: company bank receipt, salary, dividend, distribution or other documented transfer. Avoid treating company assets and a director’s personal assets as interchangeable.

Long-Held Crypto

Historic exchange exports, bank purchase records and successive wallet transfers can establish a plausible acquisition path. Save original exports and separately label any reconstruction made from an explorer. If a former exchange is closed, explain the missing archive and provide other contemporaneous evidence. Do not fabricate trades to fill a gap.

Sale or Conversion of Other Assets

Use the sale contract, broker statement or closing record, then a bank credit and transfer or purchase history. If only part of the proceeds funded crypto, show the relevant amount rather than asserting that the full sale price became a deposit.

Kraken’s explanation of SoF and SoW requests notes that proof of earning and proof of receipt may be separate documents, and that a further record can be needed to show assets entering the account. The examples and formatting conditions are those of Kraken, not a universal EU checklist.

Check the File Against the Request

Before submitting, make a two-column index: “provider question” and “file answering it.” A useful packet often has fewer documents than an unfiltered account archive.

• Match the name: an account in a partner’s or company’s name requires an explanation and supporting authority or transfer records.
• Match the time: a current payslip will not, by itself, explain a purchase made years ago.
• Match amounts: note conversion rates, fees, partial payments and several purchases combined into one deposit.
• Match the asset and network: USDT on one chain is not the same transfer as USDT on another.
• Match the identifier: keep a full transaction hash and wallet address, not a shortened display string.

Submit in the existing secure ticket or portal and ask the provider to specify any missing field. Do not send an ID photo or bank statement to an unsolicited email. Keep original exports and an exact copy of what you supplied. A crypto AML review can generate a second, narrower question after the first packet.

Get a Free Proof of Funds Assessment

Why the Request Can Be Legitimate

EU providers apply risk-based customer due diligence and transaction controls. The EBA’s crypto-asset ML/TF risk-factor guidance addresses how providers assess risk in this sector. It does not mean every customer must upload all documents listed above, nor does a document request prove suspicion of a crime. Different checks can also arise from a provider’s own policy or its obligations in another jurisdiction.

If the provider stops withdrawals while it reviews documents, keep the issue separate from whether a submitted PDF is acceptable. Record the restriction notice, requested items, submission date and response. A frozen account may require a formal complaint if the provider gives no meaningful response after a complete submission. For an in-scope EU CASP, MiCA Article 71 sets out its complaint-handling obligations; it does not set one mandatory list of source documents.

Frequent Submission Mistakes

• Uploading a wallet balance screenshot as proof of origin. Add acquisition and transfer records.
• Sending a tax return for a bank transfer without the bank entry. Add proof the income was received and moved.
• Providing a contract with no settlement record. Show the actual payment as well as the entitlement.
• Cropping out the name, date or relevant line to protect privacy. Ask what redaction is permitted and preserve the required context.
• Using a manually edited spreadsheet as if it were a provider export. Label your summary and keep the underlying files.
• Repeatedly opening new support tickets. Keep the evidence and follow-up in one case thread where possible.

Get a Case Assessment

If the exchange has rejected a complete evidence packet or a significant balance remains unavailable, Get a Free Case Assessment from P&P Crypto Asset Recovery. Share the exact request, a transaction summary and a list of records you have. We can identify what the packet proves, what is missing and the appropriate next step without promising acceptance or release.