How to Buy USDT on OKX? Beginner’s Guide with Screenshots
USDT is the first step for mainland users to enter the crypto market, as it's used for almost all deposits, trades, and withdrawals. This article specifically explains how to buy USDT on OKX, and the process is simpler than you might think.
1. What is USDT and Why Buy It First
USDT is a stablecoin pegged 1:1 to the US dollar, so its price doesn't fluctuate wildly. Mainland users cannot directly buy Bitcoin with RMB; the usual path is:
RMB → Buy USDT → Use USDT to buy other coins
USDT acts as a bridge. Once purchased, you can exchange it for BTC, ETH, or any other coin at any time, or simply hold it, which is equivalent to holding US dollars within the exchange.
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2. Two Ways to Buy USDT
OKX offers two purchase methods, each suitable for different scenarios for beginners:
| Method | Suitable For | Pros | Cons |
| Quick Buy | Best for beginners | Simple operation, system auto-matches | Exchange rate slightly higher than C2C |
| C2C Trading | After getting familiar | Can choose your own merchant and rate | Requires manual merchant selection |
Both methods are essentially the same—finding someone to exchange RMB for USDT—the difference is just automatic vs. manual matching. Beginners should use Quick Buy first, then switch to C2C once familiar.
3. Detailed Steps for Quick Buy
Step 1: Enter the Buy Page
Open the OKX app, tap "Assets" at the bottom right, then tap "C2C Buy" → Select "Quick Trade".
Step 2: Fill in Purchase Details
Select "Buy" at the top of the page, and choose USDT as the coin.
Enter the amount of RMB you want to spend in the amount field. The system will display in real-time how many USDT you can buy and the current exchange rate.
The minimum purchase amount is usually around 100 RMB.
Step 3: Choose Payment Method
Select your payment method: Alipay, WeChat Pay, or bank transfer.
Alipay or WeChat Pay is recommended for fast receipt and easy operation.
Step 4: Confirm the Order
Verify the following information is correct, then tap "Buy USDT":
- Payment amount (RMB)
- Quantity received (USDT)
- Exchange rate
- Payment method
Step 5: Complete Payment
The page will show the merchant's receiving account. Complete the transfer via Alipay or WeChat Pay within the specified time (usually 15 minutes).
After the transfer, return to the OKX page and tap "I have paid".
Step 6: Wait for USDT to Arrive
Once the merchant confirms receipt, the USDT will be automatically credited to your OKX funding account, usually within minutes.
4. How to Use USDT After Purchase
USDT is defaulted to the "Funding Account" after purchase. To trade, you need to transfer it first:
App → Assets → Transfer → Funding Account to Trading Account → Select USDT → Enter Amount → Confirm
After the transfer, you can use USDT to buy BTC, ETH, or any other coin in the spot market.
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5. Frequently Asked Questions
Q: Are there fees for buying USDT? OKX itself does not charge fees for Quick Buy or C2C, but the exchange rate includes a certain premium, usually 1-3% higher than the market rate. This is a normal cost of depositing funds.
Q: Can I withdraw USDT directly after buying it? Yes, USDT can be withdrawn to other exchanges or personal wallets. Choosing the TRC20 network has the lowest fee, about 2 USDT.
Q: Will USDT depreciate? USDT is pegged 1:1 to the US dollar, making its price very stable. There is basically no risk of depreciation for short-term holding. However, note that the US dollar itself experiences inflation, so long-term holding still involves a loss of purchasing power.
Q: What is the difference between Quick Buy and C2C? Quick Buy automatically matches you with a merchant to complete the trade, while C2C requires you to manually select a merchant from the marketplace. The result is the same, but Quick Buy is more suitable for beginners.
Q: What if the merchant doesn't release the coins after I pay? Click "Appeal" on the order page and provide proof of payment. OKX customer service will intervene, as the platform has a guarantee mechanism to protect buyers.
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