TL;DR
- Supplying USDT on Liquidium belongs to Advanced, which requires sign-in with Internet Identity or a supported wallet. Simple is an accountless borrowing flow with optional sign-in.
- The app supports two USDT settlement routes: native USDT on Ethereum and ckUSDT on ICP. Check the asset and network together before you approve or send anything.
- The Supply APY is variable. It can rise or fall with utilization, borrowing demand, and market conditions.
- A transfer can confirm on Ethereum or ICP while Liquidium still shows the supply, borrow, or repayment as pending. Use the live status and estimate for that transaction.
- Supplied USDT has no fixed term, but withdrawal depends on available pool liquidity and portfolio health. Borrowers also face interest and liquidation risk until their debt has processed as repaid.
What USDT lending means on Liquidium
USDT is a dollar-denominated token issued by Tether. Tether says issued tokens are backed by reserves, but those reserves, redemption terms, issuer operations, and secondary-market liquidity still create risk. USDT can move away from its target price.
Holding USDT in a wallet does not create a return by itself. On Liquidium, you can supply USDT to a lending pool in Advanced. Borrowers use available USDT after posting eligible collateral. Their interest payments fund the variable return paid to suppliers under the pool's rules.
This guide focuses on the current USDT market and the steps that can cost you money if you get them wrong: choosing native USDT or ckUSDT, waiting for processing, using the correct address, withdrawing, repaying, and monitoring liquidation risk. The broader guide to earning interest on stablecoins covers other yield methods and stablecoins.
How the USDT Supply APY works
The USDT Supply APY shown in the app is variable. It responds to utilization, which measures how much of the supplied pool borrowers have taken.
Higher utilization can increase rates because borrowers compete for a smaller amount of available USDT. Lower utilization or new supply can reduce the rate. High utilization can also leave less liquidity available when suppliers want to withdraw.
Check the USDT row in the Advanced picker and the live USDT Insights page before supplying. Rates, liquidity, caps, and risk parameters can change. A number shown today does not guarantee the return you will receive over a year.
The position balance accounts for accrued yield after the supply becomes active. Liquidium does not use a fixed daily payout that you need to claim.
How Simple and Advanced use USDT
Liquidium's top-level selector switches between Simple and Advanced.
- Simple: Borrow USDT against a supported collateral asset. Sign-in is optional. Each address-based loan has its own Loan ID, supply address, repay address, refund address, and destination address.
- Advanced: Supply USDT, borrow it, repay debt, withdraw supplies, and manage portfolio health. Sign-in is required, and eligible supplies and debt are managed together in one portfolio.
Simple lets you create a loan without an account or wallet connection. While signed out, the app marks the history as Saved on this device only. You can sign in with Internet Identity or a supported wallet to keep those loans on a profile and open them from another device. Save the six-character Loan ID and receipt even when you use a profile. Browser data can disappear, and the Loan ID gives you another route back to the loan.
Advanced requires sign-in. It combines supply, borrow, repay, withdraw, and portfolio health in one place. If the sign-in modal offers Simple loan / No account needed, that choice leaves Advanced and opens the accountless borrowing flow. It does not create an accountless way to supply USDT.
Use the current ICP assets control in the app. Its placement may change, but the asset and network label beside the token remain the check that matters.
Choose native USDT or ckUSDT
Native USDT and ckUSDT use different ledgers and address formats. They may route into the same supported USDT market, but you cannot substitute one transfer route for the other.
- Native USDT on Ethereum: Keep ICP assets disabled and follow the supported Ethereum wallet or address route shown by the transaction.
- ckUSDT on ICP: Enable ICP assets and use a supported linked ICP account or the address route requested by the transaction.
For ckUSDT deposits and repayments, copy the complete ICRC-1 account shown by Liquidium, including any subaccount. Do not shorten it to the owner principal or convert it to another format. Current ckAsset borrow and withdrawal screens may request a bare ICP principal instead, so use the address type named on that screen.
Internet Identity authenticates your Liquidium profile but does not connect an ICP wallet. To use Oisy, select it in Liquidium and approve the Ethereum-account sign-in. Then open Settings, connect the Oisy ICP account, and approve the second request. The ICP account is not linked automatically. Once linked, it can handle supported supply, borrow, repay, and withdrawal transactions for ICP and ckAssets.
Liquidium supports USDT and other assets through the routes shown in the live app. Supported markets, networks, wallets, APYs, caps, liquidity, and risk parameters can change. Do not rely on an old article or screenshot as an asset list.
How to supply USDT on Liquidium
1. Open Advanced and sign in
Open Liquidium Advanced, select Advanced, then open Supply. Sign in with Internet Identity or a supported wallet. The Supply form remains unavailable while you are signed out.
The wallet picker in the live app lists supported wallets. MetaMask is not a requirement.
2. Select the USDT route
Open the asset picker and read the token name with its network. Choose native USDT on Ethereum or ckUSDT on ICP. Check the live Supply APY, available market information, and any route-specific limits.
The picker routes may display the same USDT APY. That does not make the transfer formats interchangeable. Keep the asset on the network shown by the app.
3. Review and submit the supply
Enter an amount or use the percentage controls. Before selecting Supply, review the asset, network, amount, current APY, fee information, funding method, and projected effect on portfolio health.
For native USDT, approve the supported Ethereum wallet steps shown by the app. For ckUSDT, approve the supply from a linked ICP account or send the token to the complete ICRC-1 deposit account shown by Liquidium.
Sending native Ethereum USDT to a ckUSDT account, sending ckUSDT to an Ethereum address, or using an incompatible address can cause permanent loss. Read the current ICP assets and Oisy documentation before your first ckUSDT transfer.
4. Wait for the supply to become active
The progress and success screens show the transaction status and an estimated completion time. Use that estimate for the current transaction. Network conditions, the selected route, and Liquidium's detection and finalization steps affect timing.
Source-network finality and Liquidium activation are separate. A transfer can be final on Ethereum or ICP while the position remains pending in Liquidium. The USDT starts earning after Liquidium marks the supply active, not when your wallet first reports success.
Keep the transaction link and monitor the Advanced portfolio until the position appears. The Supply documentation describes the current pending states.
Manage and withdraw supplied USDT
The Advanced portfolio shows supplied value, Supply APY, accrued interest, and portfolio health. Open the USDT position to see the actions available for it.
A supply position has no fixed term. Withdrawal still depends on two conditions:
- The pool must have enough available USDT. High utilization can leave part of the supplied liquidity in active borrows.
- The withdrawal must leave your Advanced portfolio above its current risk limits if the USDT supports active debt.
Use Withdraw to move supplied USDT out. Repaying an Advanced debt does not withdraw collateral or other supplied assets. A linked ICP account can receive ckUSDT directly; a custom withdrawal uses the address format shown by the app. Review the network fee and wait until both the network transaction and Liquidium processing have finished.
The current Withdraw documentation covers liquidity and portfolio-health constraints.
Borrowing and repaying USDT
Borrowing demand funds the supplier return, so the repayment mechanics matter to both sides of the pool.
In Simple, you choose USDT or ckUSDT as the borrowed asset, provide the refund and destination addresses, generate one loan, and fund its collateral address. Those addresses become fixed after generation. The loan has no fixed repayment date, but interest keeps accruing and liquidation remains possible while debt is active.
Send repayments to the loan-specific repay address using the exact asset and network shown in the loan details. A partial repayment lowers debt and LTV after processing, but it releases no collateral. Liquidium returns collateral to the refund address only after the full current debt has confirmed and processed. Check the latest amount due before sending because accrued interest can make the original principal too small to close the loan.
In Advanced, you can borrow USDT against eligible active collateral when the pool has enough liquidity and the resulting portfolio health remains within current limits.
Repay part or all of the debt from Advanced → Portfolio → Borrowed → Repay. Use the linked-wallet or repayment-address route shown for the asset. Copy the current debt amount for a full repayment; overpayments are not guaranteed to come back.
The debt and portfolio health change after confirmation and Liquidium finalization. Current docs publish confirmation examples for some native networks, followed by protocol processing, but those counts do not apply to every USDT or ckUSDT route. Use the current transaction status. A pending repayment does not protect a position from liquidation until the protocol processes it.
Read the Simple Loan guide for the address-based flow and the Repay documentation for Advanced.
Liquidation and other USDT lending risks
Liquidation follows position health, not a missed monthly due date. Simple tracks LTV for one loan. Advanced calculates portfolio health across eligible supplied collateral and active debt.
If a Simple Loan reaches its current liquidation threshold, or an Advanced portfolio reaches the current liquidation boundary, the protocol may sell some or all collateral under its rules to repay debt. A falling collateral price, rising debt, or a pending top-up or repayment can leave too little time to recover. Review the live threshold and keep a buffer instead of borrowing to the displayed maximum.
Supplying USDT without borrowing does not create a liquidatable debt position for that supplier. Liquidation risk applies when supplied USDT or another eligible asset supports an active borrow. Suppliers still face pool, protocol, asset, and withdrawal-liquidity risk even when they carry no debt.
Other risks include:
- USDT risk: The token can lose its dollar peg. Reserve composition, redemption access, issuer decisions, and secondary-market liquidity can affect its value.
- Protocol and integration risk: Canister bugs, chain-key faults, oracle errors, wallet problems, or interface failures can delay transactions or cause losses.
- Liquidity and rate risk: Borrow demand can reduce available withdrawal liquidity. Supply APY can fall and borrow APY can rise.
- Network and finalization risk: Congestion, reorgs, or delayed detection can keep an action pending longer than the estimate.
- Address and asset risk: A wrong asset, network, incomplete ICRC-1 account, incompatible address, or unsupported smart-contract wallet can make funds unrecoverable.
Liquidium completed an independent Trail of Bits review of the ICP canisters used for cross-chain loans. The review and remediation add security evidence. They do not remove protocol, market, issuer, network, liquidity, or user-error risk.
The DeFi lending guide explains utilization, portfolio health, liquidation, and the Simple/Advanced split in more detail.
Review the live USDT market
This article is for educational purposes only and does not constitute financial, legal, or tax advice. Lending or borrowing USDT can result in partial or total loss of funds or collateral.
Open Liquidium Advanced and check the current USDT route, network, Supply APY, liquidity, fee, address format, and transaction estimate before moving funds.
FAQs
Do I need to sign in to lend USDT?
Yes. Supplying belongs to Advanced, which requires Internet Identity or a supported wallet. Simple can borrow USDT without an account, with optional sign-in for profile syncing and saved addresses.
What is the difference between USDT and ckUSDT in Liquidium?
Native USDT settles on Ethereum. ckUSDT settles on ICP. They are distinct representations with different transfer and address rules, even when the picker routes them to the same supported USDT market and displays the same rate.
When does supplied USDT start earning?
Yield starts after Liquidium detects and finalizes the supply and marks it active. A transaction can be final on Ethereum or ICP while the position remains pending in Liquidium.
Does Liquidium pay USDT interest every day?
There is no fixed daily payout. The active position accounts for accrued yield without a separate reward claim.
Can I withdraw USDT at any time?
There is no fixed term, but the pool needs enough available USDT and the withdrawal must leave any borrowing portfolio healthy. Network fees and processing time also apply.
Is native USDT better than ckUSDT?
Choose the route that matches the asset and network you hold or need. Native USDT uses Ethereum. ckUSDT uses ICP. Compare the live route, wallet or address method, fee, and destination requirements before transferring.
Is there a fixed repayment date for a USDT loan?
No. Interest accrues until the debt has processed as repaid, and liquidation remains possible while the position is active. The protocol does not wait for a monthly due date before enforcing the current health threshold.
Does a partial repayment release collateral?
For a Simple Loan, a partial repayment lowers debt and LTV after processing but releases no collateral. Full repayment returns the collateral after confirmation and finalization. In Advanced, repayment lowers portfolio debt; you withdraw eligible supplied collateral in a separate action.
What is the current USDT lending rate?
Check the USDT row in the Advanced picker or USDT Insights. The Supply APY can move with utilization, borrowing demand, and protocol parameters.
Is lending USDT safe?
It carries risk. Non-custodial architecture, collateral requirements, liquidation rules, and external review can reduce or expose some risks, but they cannot remove USDT, protocol, oracle, liquidity, network, integration, or user-error risk.
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