What Is USDT? Stablecoins Explained Simply for Beginners
Almost every first crypto purchase starts with USDT. Let's look at what this coin is, why it's worth about a dollar, why you need it on an exchange, and where beginners most often lose money when making transfers.
What a stablecoin is
A stablecoin is a cryptocurrency whose price is pegged to a regular currency, most often the US dollar. The goal is for one coin to always be worth about $1. The largest stablecoin is USDT, issued by Tether, followed by USDC.
Why you need it
- Funding your account. USDT is the easiest thing to buy via P2P or with a card, and you then use it to buy other coins.
- Money between trades. When you sell a coin, your funds sit in USDT and don't jump around in price.
- Transfers. USDT can be moved quickly between exchanges and wallets.
- The exchange's common "currency". Most trading pairs on crypto exchanges are quoted against USDT.
What the risks are
- It's not a dollar in a bank. Its stability depends on the issuer's reserves, and holdings aren't insured.
- Losing the peg. There have been cases when stablecoins lost their peg briefly — and some permanently.
- Choosing the wrong transfer network. The most common reason beginners lose money — more on that below.
- Freezing. The issuer can freeze coins at addresses linked to fraud.
USDT networks: where people lose money
USDT exists on several blockchains at once: TRC20 (Tron), ERC20 (Ethereum), Solana, exchanges' own networks and others. Addresses and fees differ between them.
| Rule | Why |
|---|---|
| The sender's and recipient's network must match | Otherwise the coins may not arrive or may be lost |
| Copy the address — don't type it by hand | One typo and the money goes to a stranger |
| Send a small test amount first | Cheaper than losing the whole amount |
| Check the first and last characters of the address | Malware can swap the address in your clipboard |
How to buy USDT
The easiest way is on a major exchange via P2P or with a bank card. How to avoid scammers on P2P is covered in detail in how to fund your account via P2P, and the full path from sign-up to your first purchase is in our OKX guide.
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- USDT aims to be worth $1, but it's not a dollar in a bank.
- The transfer network must match for sender and recipient.
- Before a large transfer, send a small test amount.
Frequently asked questions
Is USDT the same as a dollar?
No. It's a digital token issued by Tether that aims to be worth exactly $1. It usually is, but this is an obligation of the issuing company, not a dollar held in a bank.
Why hold USDT on an exchange?
It's used to fund your account, buy other coins and hold money between trades without cashing out into fiat.
Which network should I choose to send USDT?
One that both the sender and the recipient support. The network must match on both sides, otherwise the coins can be lost. Before a large transfer, send a small test amount.
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