Anyone asking "How to sell usdt?" is really asking what a coin costs and how long it takes to move. USDT transfer fees come in two layers: the network fee, paid in the coin of the network the transfer uses, and any withdrawal charge an exchange adds on top. On TRON the fee is covered by energy and bandwidth or by burning TRX, on BNB Smart Chain it is paid in BNB and on Ethereum in ETH gas. The cheapest way to send USDT is usually the network both sides support with the lowest total charge at the time.
How to convert BNB to USDT depends on where the BNB sits. On an exchange, a convert or trade screen sells BNB for USDT and shows the price and fee before confirming. From a wallet the owner controls, a decentralised exchange performs the swap on chain, with the network fee paid in BNB, and the price filled can differ from the quote through slippage. The USDT contract address should match the one published by official sources, because a name and symbol are easy to copy. Keeping a little BNB back covers later fees.
How to sell USDT for cash usually follows one of two routes. On a regulated exchange, the seller deposits USDT on a network its deposit page lists, sells on the market and withdraws the money to a bank account, after reading the fees and withdrawal limits. Selling to another person through the marketplace of an exchange keeps the coins in escrow until the seller releases them. A seller releases nothing before the money shows in the bank account itself, since screenshots of payments are simple to fake, and payments from third parties can get a bank account frozen.
Questions and answers
Who is paid the network fee on a USDT transfer?
The network, in its own coin: TRX or energy and bandwidth on TRON, BNB for BEP20, ETH gas for ERC20; an exchange may add a withdrawal charge of its own.
Where does an exchange show its withdrawal charge?
On the withdrawal screen, before the transfer is confirmed, next to the network chosen; reading it there avoids surprises.
How many confirmations does a deposit need?
The receiving platform sets the number, often between one and six for bitcoin, and usually states it on its deposit page.
When should a seller release USDT to a buyer?
Only once the money shows in the bank account itself; screenshots and messages claiming payment are easy to fake.
Why must the same network be chosen on both sides?
Coins moved on one chain stay on that chain, so a mismatch can strand them.
How can a transfer be followed after sending?
With the transaction hash on a public block explorer, which shows whether it is pending and how many confirmations it has.