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Though your answer is not clear to me, I understand that your queries are regarding USDT fees. Okay, let me explain everything. For usdt sending, there are two questions.The first is centralised, and the second one is decentralised. First of all, if your fund is in a decentralized wallet, then it will cut fees according to its nework cost. The amount won't be cut in USDT, but it will cut the fees in the network coin.
For Decentralised Network:
ETH: $10-$100+ ETH DEPENDING on GWEI.
BSC: $0.05-$1 BNB depending.
TRON: Most of the time, it charges 1–5 TRON. which is equal to $0.08 to $0.4.
Algo: Almost No Fees!
Solana: $0.01-$0.5+ Sol depending.
There are more networks. Because usdt is in every network, that is why in a decentralised case, usdt fees depend on the network.
In a centralised case, most of the cases and most of the exchanges are cut at $15-$50. And they cut the fees in USDT coins. However, if you had usdt in a centralized exchange and wanted to send it to someone, then ask him to receive fund tron or bsc network, there may be a fee of up to 1 usdt.Why do I suggest two? Because most of the exchanges support Tron USDT, so this might be an alternative to avoid USDT high fees.
This is my opinion, and I use it: if I don't need funds in an ETH network, I don't accept funds in an ETH network.I always try to choose between BSC and TRON. If BSC is not supported, then TRON. Thank you.