USDT on TRON (TRC-20)

What TRC-20 USDT is

TRC-20 is TRON’s token standard, so the label names the network a balance sits on. Tether lists TRON among the blockchains it supports (Tether), and the token contract there — TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t — is the address Tether publishes for USD₮ on TRON. Asked directly through a public node, it reports the name Tether USD, the symbol USDT and six decimal places — useful for the decimals, though the name alone would prove nothing, since any token can call itself that. The address is what confirms it (how to tell a fake).

The address has to exist before it can receive

TRON addresses are Base58 strings beginning with T, and an account that has never been used has to be activated before it can hold assets (TRON Protocol). This is the part that surprises people arriving from Ethereum, where an address is simply a number that has always existed. On TRON, generating an address in a wallet is not the same as having an account on the network, and a first transfer into a fresh address is doing two jobs at once.

What a transfer spends is not a fee in the usual sense

A TRON transaction consumes two resources: bandwidth, for the size of the transaction, and energy, for the work the contract does. An account obtains both by staking TRX, and when what it has staked does not cover the transaction, the network burns the sender’s TRX to make up the difference (TRON Protocol). So the same transfer can cost an account that has staked nothing and an account that has staked enough two completely different amounts. A cost quoted for TRON in general says little about yours; the number that matters is the one for your own account at the moment you send.

Wallets repeat the same rules in their own words. MetaMask, which now supports TRON by default, notes that an account holding TRX receives a limited amount of free bandwidth each day but no free energy, and that a newly created TRON account has to be activated by sending it a small amount of TRX (MetaMask Help Center). A USDT transfer is work done by a contract, so it is the energy side, not the free bandwidth, that decides what it costs you.

Getting USDT onto TRON

Two routes, and they are not the same shape. A bridge moves the balance in one transaction from the network it is on. An exchange takes a deposit on one network and lets you withdraw on TRON, which means two steps, two sets of rules and a withdrawal fee set by the exchange rather than by the network. The comparison below prices both for the amount you enter, and the exchange row stays on screen even when it wins.