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What Is USDT (Tether)?

What is USDT, and is one really worth a dollar? A step-by-step look at how Tether's stablecoin works, which network to use and where the risks are.

Prepared by the KryosTrade editorial desk. Updated 26 September 2026. Our review process

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Checklist summary

  • USDT is a token issued by Tether that aims to stay worth one US dollar, backed by reserves the company says it holds.
  • The same USDT exists on several blockchains; sender and receiver must use the same one, such as TRC20 (Tron) or ERC20 (Ethereum).
  • It is not a bank deposit: the peg, the reserves and the issuer's ability to freeze tokens are all risks.

What is USDT? It is a stablecoin: a crypto token designed to keep a steady value of about one US dollar, rather than rising and falling like bitcoin. It is issued by a company called Tether, and it has become the most widely used dollar token on crypto exchanges, where it acts as the "cash" side of many trading pairs such as BTC/USDT.

How USDT is supposed to hold its value

When large, approved customers send dollars to Tether, it creates (mints) new USDT and sends them the tokens. When they return USDT, Tether destroys (burns) the tokens and pays dollars back. Tether says it holds reserves, mainly short-term government debt, cash-like assets and some other investments, at least equal to the USDT in circulation, and it publishes periodic reserve reports.

That redemption route is what keeps the market price close to $1. If USDT trades at $0.99 on exchanges, large holders can buy it cheaply and redeem it for a full dollar, which pushes the price back up. The mechanism only works as long as people trust the reserves are real and redemptions keep working.

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Why people use USDT

  • Parking value between trades without converting back to a bank currency.
  • Trading pairs: many coins are priced and traded against USDT.
  • Transfers: sending dollar value across borders, at any hour, often for a small network fee.

Businesses and individuals in countries with unstable local currencies also use USDT as a way to hold dollar value, which is one reason demand for it is global. Each of these uses depends on the token staying close to its peg, and on platforms and wallets supporting the network you choose.

One token, many networks

USDT is not a single blockchain. The same token is issued on several networks, and each version lives only on its own chain. The two beginners meet most often:

Network name you will seeBlockchainAddress looks likeFee paid in
TRC20TronStarts with TTron's own resources (TRX)
ERC20EthereumStarts with 0xETH (gas)

Other networks exist too, and exchanges list which ones they support for deposits and withdrawals. The golden rule: the sender and the receiver must use the same network. Sending TRC20 USDT to an address that only accepts ERC20 can mean the funds are lost or need a slow, uncertain recovery by the receiving platform.

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Sending USDT safely, step by step

  1. On the receiving side, choose USDT and the network, then copy the deposit address shown.
  2. On the sending side, choose the same network and paste the address. Check the first and last several characters against the original.
  3. Check the fee. Exchanges typically deduct a fixed withdrawal fee, which differs by network.
  4. For a first transfer to a new address, send a small test amount and wait for it to arrive.
  5. Send the rest only once the test has been confirmed.

A worked example with illustrative numbers: you withdraw 250 USDT on a network where the platform charges a 1 USDT fee. The receiving wallet gets 249 USDT. If you had first sent a 10 USDT test, you would pay the fee twice, 2 USDT in total, and receive 9 plus 239 USDT, which is 248 USDT. That extra dollar is cheap insurance against a mistake with 250.

Watch out for "address poisoning": scammers send tiny amounts from an address that looks almost identical to one you use, hoping you copy it from your history next time. Always copy the address from the source, not from past transactions.

What is USDT's biggest risk?

Reserve and redemption risk

USDT is only as good as the assets behind it and Tether's ability to pay out. Reserve reports are attestations at a point in time, not guarantees. Stablecoins, including large ones, have traded below $1 during stress, and some smaller stablecoins have failed entirely.

Freezing

Tether can freeze USDT held at specific addresses, and has done so in cases linked to theft or law-enforcement requests. That can help victims, but it also means USDT is not beyond the issuer's control in the way bitcoin is.

No deposit protection

USDT in a wallet or on an exchange is not a bank deposit and is not covered by deposit guarantee schemes. If a platform holding your USDT fails, you are an unsecured creditor.

Regulatory change

Stablecoin rules are tightening around the world, and some regions now restrict which stablecoins regulated platforms may offer. What is available to you depends on where you live.

USDT compared with other ways of holding dollars

US dollars in a bankUSDT on an exchangeUSDT in your own wallet
Who you rely onThe bank, plus any deposit guaranteeThe exchange and TetherTether, and your own key security
Deposit protectionOften, up to a national limitNoNo
Available at weekendsDepends on the bankYesYes
Can be frozenBy the bank or authoritiesBy the exchange or TetherBy Tether at the token level
Earns interestSometimesOnly through extra products with their own risksNo

Be careful with offers of high "yield" on USDT. Any return has to come from somewhere, usually lending the tokens to others, and several lending platforms that promised steady returns on stablecoins have collapsed.

USDT in scams

Because it holds a steady value and moves quickly across borders, USDT is a favourite of fraudsters. Common patterns include fake "investment platforms" that show growing USDT balances which can never be withdrawn, requests to pay a "tax" in USDT to release funds, and strangers offering to trade USDT for cash at a premium. Our scam guide explains how to recognise them.

Where to go from here

Read how crypto works for wallets and keys, the Bitcoin guide for the asset most often bought with USDT, and our fees guide for what transfers really cost.

Beginner questions, answered

Is USDT the same as a US dollar?

No. It is a token that aims to be worth one dollar, backed by reserves Tether says it holds. It usually trades very close to $1, but it carries issuer, reserve and platform risks that dollars in an insured bank account do not.

Which network should I use to send USDT?

Whichever network both the sending platform and the receiving address support. TRC20 and ERC20 are common; the fee and speed differ, but the most important thing is that both sides match.

Can I get USDT back if I sent it to the wrong network?

Sometimes, if the receiving platform controls the address and agrees to recover it, often for a fee and after a delay. If the address belongs to a self-custody wallet or a stranger, it is usually lost.

Sources

  • Tether, published reserve reports and terms of service
  • European Union Markets in Crypto-Assets Regulation (MiCA), stablecoin provisions