OKX Source of Funds Request:
Complete Guide

Why OKX Requests Source of Funds

OKX is headquartered in the Seychelles and operates under FATF-aligned AML requirements. The exchange uses automated compliance systems to monitor account activity in real time and generates Source of Funds requests when specific transaction patterns require explanation. These are automatic compliance triggers, not individual decisions by compliance staff. OKX has significantly intensified its AML review process since 2024, meaning users who never encountered these requests previously may now find their accounts under review.

The most common triggers for a Source of Funds request on OKX are: a large single deposit or a series of deposits that substantially exceed the account's historical activity; active P2P trading with high transaction counts or non-standard amounts — OKX's P2P platform processes significant fiat volume and attracts close compliance attention; a deposit from an address carrying elevated AML risk scores in blockchain analytics databases due to historical exposure to mixers, darknet markets, or other flagged services; a sudden spike in trading volume compared to previous months; and geographic risk classification, where users from certain jurisdictions face higher compliance thresholds by default.

What OKX Is Actually Checking

A Source of Funds request is not an identity check — that is what KYC covers separately. It is a check on the legitimate origin of the specific assets on your account. OKX's compliance team is trying to establish three things with this request.

First, they need to understand where the funds actually came from: a bank transfer, the sale of cryptocurrency on another exchange, mining income, salary paid in crypto, or the proceeds from selling property. Each type of source has a corresponding set of documents that substantiates it. Second, they need to verify that the scale of account activity is consistent with the user's declared income level and account purpose. If you registered as a personal user but the account activity looks like a trading desk, that inconsistency needs an explanation. Third, they are checking that none of the sending addresses in your transaction history carry exposure to sanctioned entities or high-risk services. OKX uses blockchain analytics tools to score every address in the transaction graph, and elevated scores trigger review even if you received the funds indirectly.

Documents OKX Accepts

The specific document set depends on the source of funds in your particular situation, but OKX generally accepts the following categories of documentation.

For funds originating from fiat: bank statements for the period preceding the deposit, showing the movement of money and any cryptocurrency purchase transactions; payslips or an employment contract if the funds represent salary income; sale agreements and payment confirmations if the funds came from selling property or a business; tax returns or business registration documents for self-employed individuals or entrepreneurs.

For funds originating from other crypto platforms: trading history export from the source exchange, which must be a verified account, in CSV or PDF format; records of P2P transactions including amounts, dates, and counterparty details; invoices or contracts showing cryptocurrency received as payment for goods or services.

For mining income: pool payment history with dates and amounts, equipment purchase documentation, and electricity bills for the corresponding period.

Cover Letter Template for OKX Source of Funds

A cover letter is an essential part of your submission. Documents without explanatory context are frequently returned with requests for clarification. The letter must be written in clear professional English. Below is a working template that you can adapt to your specific situation.

Amounts stated in the letter must match the amounts in the attached documents exactly. Name your files clearly: "bank_statement_jan_2026.pdf". If any documents are not in English, include a translation of the key data.

Common Mistakes That Lead to Rejection

Mismatched amounts are the single most common reason Source of Funds submissions fail on OKX. If the letter states you received $30,000 from selling Bitcoin, but the trading history shows transactions totaling $18,000, the compliance team will immediately flag the discrepancy and request an explanation, resetting the review clock. Check every figure against every document before submitting.

Documents in a non-English language submitted without translation create a processing bottleneck. OKX operates a centralized compliance team that works in English. Materials in other languages without translations can sit in the queue for weeks waiting for a specialist who can process them.

Missing the response deadline is a common and costly error. OKX typically gives seven to fourteen days for a Source of Funds response. When that window expires without a submission, the system automatically escalates the restriction. If you cannot assemble the complete package before the deadline, respond with what you have, explain the situation, and formally request an extension in the same ticket. Any response is better than silence.

Overly vague explanations are rejected without exception. "I trade crypto" or "received from a friend" are not acceptable answers. Every source must be supported by a specific document. The more precisely each document is tied to a specific source and amount, the faster the compliance team can process and close the ticket.

"An OKX Source of Funds request is not a block — it is a request for explanation. A specific, documented answer closes the majority of tickets."