FAILED - OUT OF ENERGY on TRON: Why Your USDT Transfer Fails and How to Fix It Fast

Your USDT transfer came back with FAILED - OUT OF ENERGY. Your USDT is safe and nothing was sent. On TRON a USDT transfer is a contract call that needs energy to run, and this error means the transaction could not get it. Most of the time one setting fixes it: the fee limit.

The most common surprise: you rented energy and still got the error

Here is the case that trips up people who did everything right. You rented energy, you can see it in your wallet, you send the transfer, and TRON still says FAILED - OUT OF ENERGY. Almost always the cause is the fee limit.

The fee limit is the most TRX you let the network spend on energy for a single call. TRON treats your usable energy as the energy you already hold plus whatever that fee limit could buy. So if the fee limit is at or near zero and your rented energy is not comfortably above what the transfer needs, the call runs past its ceiling and fails, even with energy sitting in your wallet. A rental that landed a little short, or had not finished landing yet, is enough to trigger it.

The fix is one change: raise the fee limit to a comfortable value, for example 30 TRX, and send again.

• At the protocol level the fee limit is set in SUN (1 TRX = 1,000,000 SUN); most wallets show it in TRX as a Fee Limit or Max Fee field on the confirmation screen. In an SDK such as TronWeb it is the feeLimit argument, in SUN.
• Raising it costs you nothing when you have enough energy. The network spends your available energy first and only burns TRX for any shortfall, so with enough rented energy there is nothing left to burn. The fee limit is a ceiling, not a charge.
• The one exception: with no energy at all, that same fee limit is what the network burns to buy energy on the spot. So raise it freely when you already hold energy; if you hold none, rent energy first.

Before-you-send checklist

Run through this and the error should stay gone:

• Fee limit set to a comfortable value, around 30 TRX.
• Enough energy for the transfer, around 65,000 if the recipient already holds USDT, around 130,000 if the address is new, with the rental already landed in your wallet.
• The recipient is a valid TRON T-address.
• If the recipient address is brand new, it has to be activated on TRON before it can receive tokens. Activation through our service is 1.5 TRX.

Need energy now? Rent it from your dashboard or check current prices.