The short version
- USDT is a token issued by Tether that aims to stay worth one US dollar, backed by reserves the company holds.
- It exists on several blockchains; sender and receiver must use the same network or funds can be lost.
- It is not a bank deposit: holders rely on the issuer's reserves and can have tokens frozen by the issuer.
What is USDT? It is a stablecoin issued by the company Tether: a crypto token designed to be worth one US dollar, so traders can hold a dollar-like balance on a blockchain without converting back to money in a bank. On many crypto platforms it works as the default "cash" against which other coins are priced.
How the one-dollar peg is meant to work
Tether creates new USDT when approved customers send it dollars and destroys tokens when those customers redeem them for dollars. In principle, every token in circulation is matched by reserves held by the company.
The market price stays close to $1 because of arbitrage. If USDT trades below a dollar on exchanges, firms that can redeem directly buy it cheaply and redeem it for a full dollar; if it trades above, they create new tokens and sell them. Ordinary users usually cannot redeem directly and depend on those firms to keep the price in line.
Small deviations do happen. If USDT traded at $0.997, a holding of 10,000 USDT would be worth $9,970 at that moment. Larger breaks from the peg are rare but possible if confidence in the reserves falters.
What backs USDT
Tether says its reserves consist mainly of short-dated US government debt and cash-like assets, together with other holdings. It publishes periodic reserve reports prepared by an accounting firm. Those are attestations, a snapshot at a date, which is narrower than a full audit. Because a private company holds the reserves, your USDT is ultimately a claim on that company, not on a government.
Tether can also freeze tokens at specific addresses, which it has done at the request of law enforcement. That helps against theft, but it shows USDT is centrally controlled in a way Bitcoin is not.
Networks: the detail that loses people money
USDT is issued on several blockchains. The same token symbol can move over completely different networks, and the two most used in everyday transfers are:
| Network | Standard | Address looks like | Fees paid in |
|---|---|---|---|
| Tron | TRC20 | Starts with T | TRX (or network resources) |
| Ethereum | ERC20 | Starts with 0x | ETH |
Rule one: the sender and the receiver must use the same network. If a platform gives you a TRC20 deposit address, withdraw from the other platform using TRC20. Choosing the wrong network can make funds unrecoverable, or recoverable only at the receiving platform's discretion and cost.
Rule two: you need the network's own coin for fees if you send from your own wallet. A wallet holding USDT on Ethereum but no ETH cannot move the USDT.
What is USDT used for, and what is it not?
USDT lets traders move between positions without leaving the crypto system, transfer value across borders at any hour and park funds during volatile periods. For people in countries with unstable currencies it can also be a way to hold dollar exposure.
It is not a bank deposit, it earns no interest by itself and it is not covered by deposit insurance. Offers to "grow" your USDT with fixed daily returns are a classic feature of fraud, not a feature of the token.
Holding USDT on a platform versus in your own wallet
USDT kept on a trading platform is recorded in that company's books, like any other balance there. You depend on the platform's solvency and its willingness to process withdrawals. USDT in a wallet whose seed phrase only you hold is under your control, but you are then responsible for security, for choosing the right network and for keeping enough of the network coin to pay fees. Neither option removes the issuer risk that applies to the token itself.
Whichever you choose, be suspicious of any service that offers a fixed daily or monthly return on deposited USDT. Legitimate lending and interest products exist in some places, but they disclose where the return comes from and the risks involved, and they never guarantee it.
Regulatory picture
Stablecoin rules are developing quickly. In the EU, the MiCA regulation requires stablecoin issuers to be authorised, which has affected which stablecoins EU-regulated platforms can offer to their customers. Other jurisdictions are introducing their own regimes. Check how your local regulator treats stablecoins before relying on one for savings or payments.
Checking a transfer yourself
Every USDT transfer leaves a public record. When you withdraw from a platform, it should give you a transaction ID, sometimes called a hash. Pasting that ID into a block explorer for the matching network shows the sending address, the receiving address, the amount, the token contract and the number of confirmations.
That lets you answer questions yourself rather than relying on anyone's word:
- Did the transfer happen? If a platform or person says funds were sent but no transaction appears on the explorer, they were not.
- Was it the real token? The token contract shown should be the official USDT contract for that network, not a look-alike.
- Did it go to the right address? Compare the destination character by character with the address you intended.
A block explorer cannot reverse anything, but it can stop you sending more money to someone who claims a payment is "pending" or "stuck" when no transfer exists. Scammers rely on victims not knowing how to check.
USDT scams to recognise
- Fake USDT tokens. Anyone can create a token called "USDT". Only the official contract on each network is the real thing; wallets and block explorers show the contract address.
- Address poisoning. A scammer sends a tiny amount from an address that looks like one you use, hoping you will copy it from your history next time.
- Malicious approvals. A website asks you to "verify" or "claim" something, and the signature grants a contract permission to spend your USDT.
- "Investment" platforms. Sites that take USDT deposits and show rising balances that can never be withdrawn. Our scam guide explains how they operate.
Before sending USDT
- Confirm the network on both sides and that the address format matches it (T for TRC20, 0x for ERC20).
- Check you hold the network coin needed for fees.
- Send a small test first, then check it arrived, then send the rest.
For the wider context of how tokens, wallets and exchanges fit together, read how crypto works; for all the charges involved, see trading fees explained.
Reader questions
Is USDT the same as a US dollar?
No. It is a token that aims to track one US dollar, backed by reserves held by Tether. Its value depends on confidence in those reserves and in the company's ability to redeem tokens.
What happens if I send USDT on the wrong network?
The funds usually arrive at an address the receiving platform does not monitor for that network. Sometimes the platform can recover them for a fee; often they are lost. Always match networks on both sides.
Is TRC20 or ERC20 better?
Neither is better in general. They are different blockchains with different fees and speeds. What matters is that you use the one the receiving address supports.
Sources
- Tether, published reserve reports and token information
- European Union, Markets in Crypto-Assets Regulation (MiCA), stablecoin provisions