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What Is USDT and Why It Is on Every Exchange
For Beginners2026-02-139 min read

What Is USDT and Why It Is on Every Exchange

МГ
Mark Green·Crypto analyst since 2018
Updated: 13 June 2026

USDT — the First Thing I Bought Without Even Noticing

I have been trading since 2018. The first time I opened an exchange, I noticed almost every pair traded "against USDT" (BTC/USDT, ETH/USDT) — confusing at first: why not against the dollar directly? Within a week it clicked: USDT essentially IS "the dollar inside the crypto network", just on a blockchain. Now it is a tool I use every day — for trading, parking funds between trades, and transfers.

Buy USDT

The most cost-effective method — P2P, 0% fee. USDT buying guide | Bybit P2P

USDT in Plain English

USDT (Tether) is a stablecoin: a cryptocurrency whose price is pegged to the US dollar 1:1. 1 USDT ≈ 1 USD at all times (with minimal fluctuations of ±0.1–0.5%).

How this is achieved: Tether the company states it holds reserves (dollars, bonds) equal to the amount of USDT in circulation. For every token issued there is a real dollar (or equivalent) in reserve. The market trusts this peg, which keeps the rate stable.

Why Use USDT If It Is "the Same Dollar"

  • Fast 24/7 transfers. A bank wire across countries takes days and fees. USDT — minutes, cents.
  • The base currency for exchange trading. Almost every pair trades through USDT: buy BTC with USDT, sell ETH for USDT. It is the crypto market's common denominator.
  • A "safe harbour" during downturns. When BTC drops, many traders convert to USDT to "lock in" dollars without leaving the exchange for fiat.
  • Access to crypto-economy yields without BTC/ETH volatility. Earn predictable APY on USDT through Earn products.

USDT vs Other Stablecoins

StablecoinIssuerNotable trait
USDT (Tether)Tether LtdLargest market cap, highest liquidity, on every exchange
USDCCircleMore regulated, more transparent reserve audits
FDUSDFirst DigitalUsed mainly on Binance
DAIDecentralised (MakerDAO)Not controlled by one company, but a more complex mechanism

For P2P and everyday trading, USDT wins on liquidity and seller selection.

USDT Risks: an Honest Look

USDT is not a "risk-free dollar". Honest risks:

  • Regulatory risk. Tether periodically faces regulator questions about reserve composition.
  • De-pegging. In rare cases the rate briefly deviated from $1 (e.g. ±3% during severe 2022–2023 market panic), then recovered.
  • Not insured like a bank deposit. USDT on an exchange is not a government-insured asset.

In practice, for short operations (buy-sell, transfers) the risks are minimal. For storing large amounts over years, diversify between USDT, USDC and fiat.

What Is Next

  1. Buy your first USDT via P2P: guide on Bybit.
  2. Learn what Bitcoin is — where you can convert USDT to.
  3. Trading basics: spot, margin, futures.

Questions? [email protected] — I reply personally.

Frequently Asked Questions

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МГ
Mark GreenSince 2018

Independent crypto analyst. I personally test every exchange I write about — from registration to withdrawal. I survived the 2018 bear market, the 2020 crash, and the 2021 bull run. I write only from real experience.