Every USDT TRC20 transfer you make costs TRON Energy — whether you hold it, rent it, or let the network burn TRX. Here is what it costs right now:
Computed by our USDTGuides Energy Calculator from TronScan, CoinGecko and manually verified marketplace prices (verified 2026-08-07). See how we calculate →
📄How Supplying Works
- 1Connect a wallet
MetaMask for Ethereum, TronLink for TRON.
- 2Go to the official app
aave.com / justlend.org — verify the URL.
- 3Approve USDT
One-time token approval.
- 4Supply USDT
Receive aUSDT (or equivalent) as your receipt.
- 5Earn
Interest accrues per block; withdraw anytime.
“Supply” is the lender side — you are not borrowing, so there is no liquidation risk unless you later borrow against your position.
📄Rates and Utilization
Interest is set by utilization — how much of the pool is lent out. High utilization = higher APY (and tighter liquidity). Low utilization = low APY. You can watch both on the protocol dashboard.
The mental model: you are a mini-bank. Borrowers pay you for liquidity; utilization is your “loan book.” When everyone wants to borrow (high utilization), you earn more — but so does the risk of the pool being drained for withdrawals.
📄The Risks
- Smart-contract risk — audited is not infallible; exploits happen.
- Front-end phishing — fake aave.com mirrors steal approvals (phishing guide).
- Rate risk — APY can drop to near zero.
- Bridge/token risk — supplying the wrong USDT variant.
An audit is a snapshot, not a guarantee. Prefer protocols with years of operation, a public treasury, and no history of exploits — and still test with dust first.
📄Borrowing: Where Liquidation Lives
If you borrow against your USDT supply, your position must stay above the collateral ratio. If the market moves against you, the protocol liquidates part of your collateral — permanently. Borrow only with full understanding of the health factor.
| Collateral ratio | What happens |
|---|---|
| > 2.0 | Safe zone — buffer for volatility |
| 1.5–2.0 | Watch zone — monitor closely |
| < 1.0 | Liquidation — position is sold |
For pure yield, do not borrow. Supply-only keeps your risk to the protocol itself. That is the beginner-appropriate version of DeFi lending.
📄Safety Checklist
- Use the official URL (bookmark it).
- Supply a test amount, withdraw it, then go bigger.
- Check the contract address on the block explorer — see how to check a transaction.
- Keep 10–20% of USDT outside lending for emergencies.
📄Lending vs Other USDT Earnings
| Route | Typical APY | Risk Profile |
|---|---|---|
| Exchange savings | 3–8% | Counterparty (exchange) |
| DeFi lending | 2–8% | Smart contract |
| Liquidity pools | 5–15% | IL + contract |
Lending sits in the middle: simpler than farms, less insured than exchange products. For the full menu with rates and trade-offs, see how to earn interest on USDT and staking basics.
📄Getting Started
- 1Pick one protocol
Aave (Ethereum) or JustLend (TRON) — start with the chain you know.
- 2Supply dust
Deposit a small amount and practice withdrawing twice.
- 3Watch utilization
Learn how the APY moves with it for a week.
- 4Scale slowly
Grow the position only when the withdrawal path feels boring.
The difference between lending and farming is discipline: lending rewards patience, farming rewards luck. Our yield farming risks page explains why.