What is USDT (Tether)?
USDT — commonly called Tether — is the largest and most widely-traded US-dollar stablecoin. Like other dollar stablecoins it aims to stay worth one US dollar, and it's prized for deep liquidity, especially in emerging markets.
What USDT is
USDT, almost always called Tether, is a US-dollar stablecoin: a blockchain token designed to stay worth one dollar. It’s the oldest and most widely-traded stablecoin, and for many businesses — especially in emerging markets — it’s the default way to hold and move dollar value on-chain.
Like all fiat-collateralised stablecoins, USDT is meant to be backed by reserves the issuer holds, with the issuer publishing regular attestations of those reserves.
How it works
A token is minted when value enters the system and redeemed when it leaves, and in between it moves wallet-to-wallet on a blockchain — clearing in minutes, around the clock. The reserve behind it is what keeps the price anchored to a dollar.
Where USDT stands out — and where to look closely
- Liquidity — USDT has the deepest liquidity of any stablecoin, so large amounts can be moved without slippage, and it’s accepted almost everywhere crypto is.
- Emerging-market reach — in regions with restricted dollar access or volatile local currencies, USDT is often the most available dollar proxy.
- Multi-chain — Tron and BNB Smart Chain offer very low transfer costs; Ethereum offers the broadest tooling.
- Transparency — historically USDT’s reserve composition has been broader than some peers’, so businesses weighing reserve quality often compare it directly with USDC.
Choosing a network for USDT
Because USDT exists on several blockchains, a practical decision is which to use. Tron and BNB Smart Chain offer the lowest transfer fees and are popular for high-volume payouts and in emerging markets; Ethereum has the deepest tooling and integrations but higher gas costs. The dollar value is identical across all of them — but a USDT balance on one chain can’t simply move to another without a bridge or a provider that handles the conversion. So picking the right network up front, based on where your counterparties hold USDT and what fees you can tolerate, matters more than it first appears.
Using USDT compliantly
The deep liquidity is only useful if you can move USDT within the rules — KYB, sanctions screening and the Travel Rule all apply to stablecoin transfers. Most businesses therefore settle USDT through a regulated rail rather than handling it directly.
KwiikPay supports USDT (alongside USDC and EURC) on its cross-border rails — settling in stablecoin where it’s fastest and cheapest, then paying out in local currency across 80+ countries — as a registered VASP (Poland) and, in Canada, a Payment Service Provider under the RPAA (Bank of Canada-supervised) and a FINTRAC MSB. See stablecoin settlement and the USDC vs USDT comparison.
FAQs
What backs USDT?
Tether states that USDT is backed by reserves the issuer holds, and publishes regular attestations of those reserves. The reserve mix has historically been broader than some peers, which is one reason businesses compare USDT and USDC on transparency, not just liquidity.
Which networks does USDT run on?
USDT is available on many chains — Ethereum, Tron and BNB Smart Chain are among the most used. Tron and BSC are popular for low-cost transfers; the dollar value is identical across chains, but fees and speed differ.
Why is USDT so widely used?
Liquidity. USDT has the deepest trading liquidity of any stablecoin and is widely accepted on exchanges and in emerging markets, which makes it easy to move in and out of at scale and in regions where dollar access is hard.
Is USDT the same as a US dollar?
It represents one US dollar of value and is designed to trade at that price, but it's a private token settling on a blockchain, not a bank deposit or central-bank money. Holders rely on the issuer's reserves standing behind it.