Quick answer
Existing USDT balance: about 65K.
Zero balance or uncertain: about 130K.
Check the recipient wallet automatically before choosing.
Why recipient state changes Energy use
A USDT transfer executes token-contract logic. Updating an existing token balance generally follows a lower-cost path than creating or reinitializing balance storage for a recipient with no current USDT. That extra work is why the higher package is the safer default when the state is unknown.
Decision table
| Situation | Choose |
|---|---|
| The recipient currently holds more than 0 USDT | About 65K Energy |
| The recipient address exists, but its USDT balance is 0 | About 130K Energy |
| The address is new, inactive, or you cannot verify it | About 130K plus an activation check |
| A wallet simulation shows a different requirement | Follow the wallet estimate with a safety margin |
What if you rent too little?
If the wallet lacks enough Energy, TRX may be burned for the shortfall or the transaction may fail depending on wallet settings and available balance. Verify the wallet estimate before signing instead of relying only on a fixed package name.