Cryptocurrency trading has become increasingly accessible, and platforms like OKX make it easy for users to buy and sell digital assets using fiat currency. Whether you're new to crypto or looking to streamline your trading experience, this guide walks you through the complete process of buying and selling coins via the OKX platform—both on mobile and web—while ensuring security, efficiency, and optimal transaction outcomes.
Understanding Buy/Sell Trading on OKX
Buy/sell trading on OKX refers to exchanging fiat money (like USD, EUR, or CNY) for cryptocurrencies such as USDT, BTC, or ETH, or selling your digital assets back into fiat. This service is structured across three main zones:
- Quick Trade Zone: Ideal for instant transactions with minimal steps.
- C2C (Peer-to-Peer) Trading Zone: Allows direct trades between users with customizable filters.
- OTC (Over-the-Counter) / Bulk Trading Zone: Designed for high-value transactions (typically over $10,000).
These options cater to different needs—from beginners making small purchases to experienced traders executing large-volume deals.
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Step-by-Step: Setting Up Your Account
Before initiating any transaction, ensure your account is fully set up for secure and smooth trading. Here's what you need to do:
1. Complete KYC Verification
KYC (Know Your Customer) verification enhances security and increases your trading limits.
On Mobile App:
- Open the OKX app.
- Tap the top-left icon → Identity Verification.
- Complete Level 1 (Basic), Level 2 (Advanced), and optionally Level 3 (Video Verification).
On Web:
- Log in and click your profile icon → Identity Verification.
- Finish Level 1 and Level 2 verification. Note: Level 3 video verification is only available in the mobile app.
🔍 Higher verification levels improve matching with premium merchants and often offer better rates.
2. Bind Your Phone Number
Ensure your phone is linked for two-factor authentication and transaction confirmations.
- Go to Security Settings → Phone Verification.
- Follow prompts to verify your number.
📌 If you registered with a phone number, binding is automatic. You can still link an email using the same method.
3. Set a Fund Password
A fund password adds an extra layer of protection for withdrawals and trades.
- Navigate to Security Settings → Fund Password.
- Create a strong, unique password.
This section also allows you to enable:
- Login password changes
- Google Authenticator
- Anti-phishing codes
- Gesture login (mobile only)
✅ The more security features enabled, the safer your account becomes.
4. Add Payment Methods
To receive fiat when selling crypto, link your preferred withdrawal methods.
On App:
- Tap Buy Crypto → Quick Trade → More (top-right) → Payment Settings → Add Payment Method.
On Web:
- Click Buy Crypto → More → Personal Settings → Add Payment Method.
Supported options include:
- Bank cards
- Alipay
- WeChat Pay
💡 New users must add at least one bank card, Alipay, and WeChat to facilitate smooth withdrawals.
How to Buy Cryptocurrency on OKX
Buying crypto on OKX is fast and intuitive, especially in the Quick Trade zone.
Using the Mobile App
- Open the app → Tap Buy Crypto → Quick Trade.
- Select the cryptocurrency (e.g., USDT) and enter the amount you want to purchase.
- Choose your payment method (bank transfer, Alipay, etc.).
- Confirm the order and proceed.
After confirmation:
- Use your banking app, Alipay, or WeChat to send the funds to the seller’s provided account.
- Once transferred, tap I’ve Transferred – Notify Seller.
The system will release the crypto to your wallet once the seller confirms receipt. You can view your balance under the Assets tab.
On Web Platform
- Click Buy Crypto → Buy.
- Select your payment currency and input the amount.
- Copy the seller’s details and complete the bank transfer.
- Click I’ve Transferred – Next Step.
Wait for confirmation—your digital assets will be credited shortly.
⚠️ Important Tips:
- Never include keywords like "Bitcoin," "crypto," or "OKX" in your bank transfer notes.
- Use only KYC-verified, real-name registered bank accounts.
- Single transaction limit: CNY 10 – 1,000,000.
- For transfers above CNY 50,000 during non-business hours (after 5 PM or holidays), split payments to avoid delays.
You can cancel orders within the allowed time, but repeated cancellations or missed payments may harm your reputation and restrict future trades.
👉 Access fast, low-fee crypto purchases with a seamless interface.
How to Sell Cryptocurrency on OKX
Selling works similarly but in reverse—you send crypto after confirming fiat receipt.
Example: Selling USDT
- Go to Buy Crypto → Quick Trade → Sell.
- Enter the amount of USDT you wish to sell.
- Confirm the listing and wait for a buyer.
When a buyer pays:
- The Confirm Receipt button will light up.
- Check your bank, Alipay, or WeChat to verify the funds have arrived.
- Only then enter your fund password and click Confirm Receipt to release the crypto.
⚠️ Critical Rules:
- Always verify actual fund arrival before releasing crypto.
- Delayed releases affect your average release time metric, impacting merchant trust.
- If no payment arrives, click File Complaint—the system will freeze the order and involve customer support.
Use the C2C Trading Zone or Bulk Trading option for larger sales (≥ $10,000) to access better pricing and trusted traders.
Managing Your Trade Orders
Tracking your transactions ensures transparency and helps resolve issues quickly.
On Mobile:
- Tap Buy Crypto → Orders.
- View categories: Pending, Completed, Cancelled.
- Use the filter icon (top-right) to sort by date, type, or status.
On Web:
- Click Buy Crypto → Order icon (top-right).
- Filter orders by type and timeframe.
Regular monitoring helps maintain a healthy trading history and improves credibility in peer-to-peer markets.
Frequently Asked Questions (FAQ)
Q: Is KYC required to buy or sell crypto on OKX?
A: Yes, completing at least Level 1 KYC is mandatory for buy/sell functions. Higher levels unlock greater limits and better trading opportunities.
Q: Why isn’t my bank transfer reflecting in the order?
A: Delays may occur due to interbank processing times, especially outside business hours. Avoid large single transfers during these periods; consider splitting them.
Q: Can I use someone else’s bank account for transactions?
A: No. All payment methods must match your KYC identity. Using third-party accounts violates platform policy and may lead to account restrictions.
Q: What happens if I mark “I’ve transferred” but don’t actually send money?
A: This action damages your reputation. Repeated offenses can result in temporary or permanent suspension of trading privileges.
Q: How long does it take to receive crypto after payment?
A: Typically within minutes once the seller confirms receipt. Ensure clear communication and timely action to speed up the process.
Q: Can I trade without downloading the app?
A: Yes, full functionality is available on the web version. However, certain features like video KYC require the mobile app.
Final Tips for Safe & Efficient Trading
- Always double-check payment details before transferring funds.
- Communicate only through OKX’s secure chat system during C2C trades.
- Enable all available security features—especially Google Authenticator and anti-phishing codes.
- Keep records of all transactions for reference.
Whether you're purchasing your first USDT or managing large-scale OTC deals, OKX provides a reliable infrastructure for seamless fiat-to-crypto conversion.
👉 Maximize your trading potential with advanced tools and deep liquidity.
By following this guide, you’ll be well-equipped to navigate both the app and web versions of OKX confidently, securely, and efficiently—turning digital asset trading into a smooth part of your financial routine.