USDT is a stablecoin pegged to the US Dollar—simply put, it is "US Dollars on the blockchain." For the vast majority of beginners, their first crypto transaction starts with buying USDT. Your first purchase on the Binance Official Website will likely be USDT, and most mainstream trading pairs on the Official Binance App are priced as X/USDT. For region-switching information, refer to Binance App Download. Here is everything you need to know about USDT.
A One-Sentence Definition
USDT is a stablecoin issued by the company Tether; in most cases, 1 USDT ≈ 1 US Dollar.
Why Do We Need "Stablecoins"?
The fundamental assets of the crypto world are BTC and ETH, but their prices fluctuate wildly. If you want to:
- Temporarily hold non-volatile assets.
- Convert between different cryptocurrencies.
- Transfer funds between platforms.
- Send money to friends (without price changes affecting the value).
You need a "US Dollar for the crypto world." USDT fulfills this role.
How USDT "Pegs" to the US Dollar
Tether claims that:
- For every 1 USDT issued, they hold 1 US Dollar (or equivalent assets) in a bank.
- Users can redeem USDT for US Dollars.
- Their reserve assets are audited periodically.
While there have been controversies regarding reserve transparency and composition, the mainstream market continues to trust USDT.
USDT "Avatars" on Different Blockchains
USDT is issued on multiple blockchains:
- TRC20 (Tron): Extremely popular due to low fees and high speed.
- ERC20 (Ethereum): The traditional mainstream standard.
- BEP20 (BNB Smart Chain): Cheap and fast within the Binance ecosystem.
- Solana: High-speed transactions.
- Polygon: Low-cost Layer 2.
The USDT on each chain is technically a separate token, but they have the same value (they are all 1 USDT). You can convert between them using exchanges.
Why USDT is More Convenient Than US Dollars
| Dimension | USDT | US Dollar (Fiat) |
|---|---|---|
| Cross-border Transfer | Minutes | Days |
| Transfer Fees | A few dollars | Dozens of dollars |
| Availability | 24/7 | Bank business hours only |
| Regulation | Crypto-native | Banking system |
| Operating Hours | 365 days a year | Closed on weekends/holidays |
The crypto world uses USDT primarily because it "blockchain-izes" the US Dollar.
The Risks of USDT
Risk 1: Reserve Controversy
- Tether's reserves are not entirely cash.
- They include commercial paper, corporate bonds, etc.
- In extreme cases, a "bank run" could occur.
Historically, USDT has occasionally "de-pegged" (dropping to 0.95 or 0.97), but it has always returned to 1 quickly.
Risk 2: Regulatory Risk
- The US SEC is tightening regulations on stablecoins.
- In extreme scenarios, Tether could be forced to change its operations.
- However, USDT is so widely circulated that a total shutdown is highly unlikely.
Risk 3: Freezing
- Tether has the ability to freeze USDT in specific addresses.
- Addresses associated with hackers or money laundering can be blacklisted.
- Ordinary users are generally not affected.
USDT vs. USDC
USDC is another major stablecoin, issued by Circle:
| Dimension | USDT | USDC |
|---|---|---|
| Issuer | Tether | Circle |
| Transparency | Moderate | High (Monthly audits) |
| Market Cap | Largest | Large |
| Liquidity | Universal | Primarily in Western markets |
| Regulation | Off-shore | US-regulated |
USDT has broader liquidity, while USDC is considered more compliant. For most beginners, USDT is perfectly fine.
Common Use Cases for USDT
| Scenario | Operation |
|---|---|
| On-ramp | Buy USDT via C2C (P2P). |
| Buying Coins | USDT → BTC. |
| Selling Coins | BTC → USDT. |
| Cross-platform | Send via blockchain. |
| Wait-and-see | Hold USDT during market volatility. |
| Off-ramp | Sell USDT via C2C (P2P) for fiat. |
How Much is 1 USDT in Local Currency?
Theoretically, 1 USDT ≈ 1 USD. Depending on your local currency's exchange rate, it will fluctuate accordingly.
In the C2C (P2P) market, the price might be slightly higher than the official exchange rate due to:
- Merchant profit margins.
- Conversion costs.
- Supply and demand.
How to Count USDT
USDT is divisible just like other cryptocurrencies:
- 1 USDT = 1 USDT.
- 0.01 USDT is possible.
- 0.000001 USDT is possible.
However, minimum transfer amounts apply depending on the blockchain used.
What Does "USDT-Margined" Mean?
A common term in futures trading:
- USDT-Margined (U-based): Using USDT as collateral/margin.
- Coin-Margined (Coin-based): Using BTC or other coins as collateral.
See our futures articles for more details.
Can I Earn Interest on USDT?
Binance Earn provides several USDT investment options:
- Flexible: Usually 1-3% APR (withdraw anytime).
- Fixed/Locked: Usually 3-7% APR.
- High-risk Products: 10%+ APR.
Beginners can put small amounts into Binance Earn Flexible to earn some interest rather than letting it sit idle.
Global Circulation
There are roughly 100 billion USDT in circulation (fluctuates). This represents about 5-10% of the total crypto market cap, making it a vital piece of "infrastructure."
FAQ
Q: Can USDT go to zero?
A: Theoretically possible, but given Tether's reserves and market trust, the probability is extremely low in the short term.
Q: If I buy at 1.01 USD and it goes back to 1.00, do I lose money?
A: Technically yes, a 0.01 loss. But in daily trading, such fluctuations are negligible.
Q: Can I spend USDT directly in stores?
A: Generally no. You usually need to convert it back to your local fiat currency first.
Q: Is USDT issued by Binance?
A: No. It is issued by Tether. Binance simply lists it for trading.
Further Reading
- What is Spot Trading: Common trading types
- What is C2C: Buying USDT with fiat
- Choosing the Right Network: USDT multi-chain guide