"One-click repayment" sounds convenient, but when you use a currency different from the borrowed one, the system automatically performs a "sell A → buy B" conversion. Two key factors affect the final outcome: the spread and slippage generated by the exchange, and if the assets you're selling aren't enough, the system will only partially repay the debt, leaving the remaining liability to continue accruing interest.
Below are three things you need to know before using this feature.
Step 1: Confirm Your Account Mode – Does It Support Repaying with a Non-Debt Currency?
Not all account modes let you use any asset to repay a specific debt. First make sure your current mode supports this capability.
What to do: Check which account mode your OKX account is currently in.
How:
Case A (Cross-currency margin mode or portfolio margin mode): These modes support automatically converting other assets in your account to repay a liability. When necessary (e.g., the debt exceeds platform limits), a forced repayment mechanism is triggered—the system sells other assets in your account for USDC, then buys the debt currency to settle the liability.
Case B (Isolated margin mode or single-currency cross margin mode): In these modes, the debt and collateral are tied together. Repayment can only be done by closing the position; when closing, interest is repaid first, then the principal. Using other currencies to repay the position's debt isn't supported.
Done when: You have confirmed that you are using cross-currency margin mode (or portfolio margin mode), not isolated or single-currency cross margin.
Common failure reason: Trying to repay with other assets while in isolated margin mode and finding that the option simply doesn't exist. This is because funds are isolated in that mode and cross-asset allocation isn't allowed.
Step 2: Calculate the Exchange Spread – What the System Sells First and How
When you use a non-debt currency for repayment, the system automatically executes a "sell asset → buy debt currency" conversion. This process involves two trades, which will result in a spread and slippage.
What to do: Understand the system's asset selection and conversion rules so you can estimate the exchange cost.
How:
Know the selection priority: The system prefers to sell the asset with the highest discount rate, because this type of asset has the least impact on the account's overall equity. Among assets with the same discount rate, it will choose the one with better liquidity first.
Know the conversion path: The system typically uses USDC as the intermediate asset—first converting the asset you're selling into USDC, then using USDC to buy the debt currency. This is because USDC has good liquidity and low slippage.
Actual conversion involves a spread: The system clearly states that "the actual conversion amount is subject to market fluctuations and may differ, and large conversions may cause longer execution times and greater slippage." When repaying a large amount, the conversion loss can be noticeable.
Done when: You understand that the system will prioritise selling the assets with the highest discount rate in your holdings, and that the conversion is subject to slippage and not guaranteed at the exact market price.
Step 3: Check the Remaining Debt – Repayment Won't Fully Clear If Assets Are Insufficient
Even if you click to repay, if the total value of sellable assets in your account is insufficient to cover the entire debt, the system will only sell the available assets to repay part of it. The remaining debt stays on the books and continues to accrue interest.
What to do: After the repayment operation, check the debt section of your account to see if any liability remains.
How:
Once the repayment is done, go to the Assets page and look under "Liabilities" or "Loans" for the currency you originally borrowed. Check whether the balance is zero.
If it shows zero, the debt has been fully repaid.
If it still shows a positive amount, only part of the debt was repaid, and the remaining liability will keep accruing interest at the borrowing rate. You'll need to add more assets or use another method to repay the rest.
Done when: You've confirmed that the debt balance is zero, or you're aware of the exact remaining debt amount and have a plan for the next step.
Risk reminder: If the system sells some of your holdings to make the repayment, those sales will incur trading fees, and the sale itself may change your position direction, affecting your original trading strategy.
How to Confirm the Operation Is Correct?
After using the one-click repayment feature, open OKX's Assets page and check three things under the debt section:
Is the balance of the originally borrowed currency zero? If not, how much is still owed?
Which assets did the system sell to make the repayment? Is the sale price within an acceptable range?
If the debt is cleared, check whether any new orders or positions were affected as a result (e.g., forced cancellation of orders during liquidation).
If the debt is cleared and the conversion prices in the transaction history are reasonable, the operation is complete. If debt remains, you'll need to decide whether to add more assets and try again or handle the remainder another way.
