What Is USDT (Tether)?

What is USDT in practical terms? It is a token, issued by the company Tether, that aims to be worth exactly one US dollar at all times. On most crypto platforms it plays the role that a cash balance plays in a brokerage account: you sell a coin into USDT, hold it while you decide what to do next, and buy with it again.

How does USDT keep its value at one dollar?

Short answer: through reserves and redemption. Tether says it holds assets at least equal to the tokens in circulation, and large, verified customers can create or redeem tokens directly with it at one dollar each.

When demand for USDT rises, approved customers send dollars to Tether and receive newly issued tokens. When they want out, they return tokens and receive dollars, and those tokens are removed from circulation. That creation and redemption channel is what anchors the price. If USDT traded at $0.99 on the open market, a customer able to redeem at $1.00 could buy cheaply and redeem at par, pulling the price back up.

Most individual holders cannot redeem directly; they sell to someone else on a trading platform. For them the peg depends on that arbitrage working and on continued confidence in the reserves. Tether publishes periodic reports on the composition of those reserves, which have included short-term US government debt, cash-like instruments and other assets. Reading the latest report yourself, rather than a summary of it, is worthwhile before holding large amounts.

Which network should I use to send USDT?

USDT is not a single blockchain asset. Tether issues separate versions of the token on several networks, and each version lives only on its own chain. The two that most readers meet are:

The rule that matters most: the sending network and the receiving network must be the same. If you withdraw USDT from a platform on Tron, the destination must be a Tron address that expects TRC20 USDT. Selecting the wrong network can leave the funds stranded, and recovery, when it is possible at all, depends on the goodwill and procedures of whoever controls the receiving address.

How do I send USDT without losing it?

1. Copy the destination address from the recipient's own deposit screen, never from an old transaction or a chat history.
2. Check the network label on both sides matches: TRC20 with TRC20, ERC20 with ERC20.
3. Compare the first and last several characters of the pasted address with the original. Some malware swaps addresses on the clipboard, and scammers send tiny "dust" transfers from look-alike addresses hoping you will copy the wrong one later.
4. For a large amount, send a small test first and wait for it to arrive.
5. Account for the withdrawal fee. As an illustration, if a platform charged a flat 1 USDT to withdraw on a given network, sending 500 USDT would deliver 499.

What happens if USDT loses its peg?

A stablecoin can trade below a dollar when holders rush to sell and doubts arise about redemptions. Even a small discount matters on large balances: if USDT traded at $0.997, a holding of 10,000 tokens would be worth $9,970 at that moment. Large dollar stablecoins have briefly traded below their peg during periods of market stress, and some smaller designs lost their peg permanently.

Tether can also freeze tokens at specific addresses, and has done so in response to law enforcement requests. That is useful against theft but means USDT is not fully outside anyone's control, which surprises some holders.

How is USDT different from dollars in a bank?

• No deposit insurance. Bank deposits in many countries are protected up to a limit by a guarantee scheme. USDT is a claim on a private company's reserves, not a deposit.
• No interest by default. Tether keeps the income from its reserves. Any platform offering interest on USDT is lending it out or using it elsewhere, which adds that platform's risk.
• Platform risk on top. USDT held on a trading platform is a balance in that platform's books; if the platform fails, the peg does not protect you.
• Irreversible transfers. A payment sent to the wrong address cannot be pulled back by a bank.

What should I check before holding USDT for long?

• Where it sits. On a platform, your USDT is exposed to that platform. In your own wallet, it is exposed to your key management.
• Which network. Fees and the platforms that support each network differ, and some platforms stop supporting a network with limited notice.
• What the latest reserve report says. Compare the composition with earlier reports and note any assets you would consider riskier than short-term government debt.
• Local rules. Some jurisdictions restrict which stablecoins regulated platforms may offer to their residents, which can affect where you can trade or redeem.

None of these checks makes USDT risk-free; they simply make you aware of which risks you are carrying.

What is USDT used for in practice?

Traders use it as the quote currency for coin pairs and as a place to park value between trades without leaving the crypto system. Some people use it for cross-border transfers because it moves around the clock. Scammers use it heavily too, because it is quick to move and easy to request: "pay the release fee in USDT" is one of the most common lines in fraudulent investment schemes, as our scam guide explains.

To see how stablecoins fit into the wider crypto system, read how crypto works. For the first and largest non-stable cryptocurrency, see what Bitcoin is.

Sources

• Tether, published reserve reports and terms of service
• Tron and Ethereum token standard documentation (TRC20, ERC20)