The picture in three lines
- USDT is a token issued by Tether that aims to stay worth one US dollar, backed by reserves the issuer reports holding.
- The same USDT exists on several blockchains, such as Tron (TRC20) and Ethereum (ERC20); sender and receiver must use the same one.
- It is not a bank deposit: its value depends on the issuer, its reserves and the platforms that handle it.
What is USDT? It is a stablecoin, a crypto token designed to hold a steady value of one US dollar, issued by the company Tether. It moves on public blockchains like any other token, so it can be sent anywhere in minutes, yet it avoids most of the price swings of bitcoin or ether. That combination has made it the default "cash" on many crypto exchanges.
- 1 USDT
- is designed to be worth 1 US dollar
- TRC20
- USDT on the Tron network, addresses start with T
- ERC20
- USDT on Ethereum, addresses start with 0x
How the dollar peg is supposed to hold
Fig. 1 · Creation and redemption of USDT
- DepositA large verified customer sends dollars to the issuer.
- MintThe issuer creates the same number of new USDT and sends them to the customer.
- CirculateThe tokens are traded and transferred on exchanges and blockchains.
- RedeemA verified customer returns USDT to the issuer and receives dollars; the tokens are destroyed.
The link to the dollar depends on that last step. If USDT trades below $1 on exchanges, large holders can buy it cheaply and redeem it with the issuer for a full dollar, which pushes the market price back up. If it trades above $1, they can mint new tokens and sell them. This arbitrage only works as long as people trust that the reserves exist and that redemptions will be honoured. Ordinary users usually cannot redeem directly; they sell USDT to someone else on an exchange.
One token, several networks
Tether issues USDT on more than one blockchain. The token is worth the same on each, but the networks are separate systems that do not see each other's balances.
| Network label | Blockchain | Address format | Fee paid in |
|---|---|---|---|
| TRC20 | Tron | Starts with T | TRX (Tron's own coin) |
| ERC20 | Ethereum | Starts with 0x | ETH |
USDT also exists on several other chains, and some of them use the same 0x address format as Ethereum. That is exactly why the network label, not the look of the address, is what you must match. Send USDT on Tron to a receiving service that only watches Ethereum and the tokens may be unrecoverable, or retrievable only by the receiving company's support team if it chooses to help.
Sending USDT without losing it
- Ask the receiver which network they accept, and pick that same network on the sending side.
- Copy the full address, then compare the first and last several characters on both screens. Never pick an address from your transaction history.
- Check the network fee. It is paid in the chain's own coin, so keep a small amount of TRX or ETH if you send from a private wallet.
- Send a small test amount first when the address is new, and wait for it to arrive.
- Keep the transaction hash (the transfer ID) until the receiver confirms.
Illustrative fee example: you withdraw 250 USDT from an exchange that deducts a 1 USDT withdrawal fee from the amount. The receiver gets 249 USDT. Some platforms add the fee on top instead, so read the confirmation screen, which shows the amount that will arrive.
What people use USDT for
- A parking place on exchanges: selling a volatile coin for USDT locks in a dollar value without leaving the crypto system.
- Trading pairs: many coins are priced against USDT, as in BTC/USDT.
- Moving value between platforms: transfers can settle in minutes at any hour, including weekends.
- Cross-border payments: some people use it to send dollar value abroad, subject to local law.
For traders, the main attraction is speed at any hour. A bank transfer between countries can take days and stops at weekends; a USDT transfer on a busy network usually confirms in minutes. That same speed is why errors and fraud involving USDT are so hard to undo.
What is USDT's main risk? It is not a dollar in a bank
- Issuer and reserves. The value rests on Tether's reserves and its willingness and ability to redeem. Reports on those reserves are published by the issuer; they are not the same as deposit insurance.
- De-pegging. Stablecoins have traded below $1 during periods of stress, sometimes briefly, sometimes not.
- Freezes. The issuer can technically freeze tokens held at specific addresses, and has done so in cases linked to crime or legal orders.
- Platform risk. USDT held on an exchange is exposed to that exchange's solvency.
- Rules. Stablecoin regulation differs by country, and platforms may limit which stablecoins they offer in a region.
USDT compared with other ways of holding dollars
| Dollars in a bank | USDT on an exchange | USDT in your own wallet | |
|---|---|---|---|
| What you hold | A deposit claim on a bank | A claim on the exchange, which holds USDT | Tokens on a blockchain, a claim on the issuer's reserves |
| Deposit insurance | Often, up to a national limit | No | No |
| Transfers | Banking hours and systems, reversible in some cases | Internal, instant; withdrawals on-chain | Any time, irreversible once confirmed |
| Main dependency | The bank and its regulator | The exchange and the issuer | The issuer and your key security |
Reading a transfer on a block explorer
Every USDT transfer can be looked up on a public block explorer for its network by pasting the transaction hash. The page shows the sending and receiving addresses, the amount, the token contract, the fee paid and the number of confirmations. Two checks are worth making: that the token contract is the official USDT contract for that network, since look-alike tokens with the same name exist, and that the receiving address is exactly the one intended. If an exchange says a deposit has not arrived, the explorer tells you whether it was ever sent.
USDT and scams
Because it moves fast and cannot be reversed, USDT is often the currency scammers request. Watch for "address poisoning", where a thief sends you a tiny transfer from an address that looks like one you use, hoping you copy it next time. Be wary too of offers to "mine" or "stake" USDT for fixed daily returns, and of anyone who asks you to pay a fee in USDT to unlock a withdrawal elsewhere. Our scam guide explains the patterns.
Asked and answered
Is USDT the same as a US dollar?
No. It is a token designed to track the dollar, backed by reserves reported by its issuer. It is not a bank deposit and is not covered by deposit insurance.
What happens if I send USDT on the wrong network?
The tokens arrive on a blockchain the receiver may not monitor. Sometimes the receiving company can recover them manually, sometimes not. Always match the network on both sides and send a test amount first.
Why do I need TRX or ETH to send USDT?
Network fees are paid in the blockchain's own coin, not in USDT. A private wallet holding only USDT cannot send it until it holds a little of that coin.
Sources
- Tether, published USDT documentation and transparency reports
- Tron and Ethereum token standard documentation (TRC20, ERC20)