What is Tether (USDT)?
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🟢 The simple version
Plain English — no jargon. Start here.
USDT is a token designed to always be worth one US dollar — the company Tether Ltd claims to hold reserves backing every token, and USDT has become the de-facto dollar of crypto trading worldwide, all while operating for a decade without ever publishing a full independent audit.
Why does USDT exist?
Crypto prices swing wildly, but traders need somewhere stable to park money between trades — and for years most crypto exchanges couldn't get bank accounts to hold actual dollars. Tether solved both problems at once: a token that behaves like a dollar but moves like crypto — 24/7, across borders, without a bank in the loop.
Launched in 2014 (originally under the name Realcoin) and later closely tied to the Bitfinex exchange, USDT grew into the default trading pair on most exchanges. When you see a coin priced against 'USD' on many platforms, you're often actually looking at USDT.
How is it supposed to work?
The promise is simple: for every USDT in circulation, Tether Ltd holds one dollar's worth of reserves (cash, US Treasury bills, and other assets). Anyone large enough can deposit dollars to mint USDT or redeem USDT for dollars, and this keeps the market price pinned near $1.
In practice, direct redemption is only available to verified customers with a minimum of $100,000 — everyone else relies on exchanges and market makers to keep the peg tight. This has worked remarkably well for a decade, including through several severe market crashes.
Is USDT legal in India?
Yes. USDT qualifies as a Virtual Digital Asset (VDA) under Indian law — the 30% tax on gains and 1% TDS apply even to stablecoin trades, and USDT-INR is the most traded pair on Indian exchanges. Always consult a tax professional.
🟡 A bit more detail
For when you want to go a little deeper.
The reserve controversy — the honest version
Tether has never published a full independent audit. It publishes quarterly 'attestations' (a snapshot review by an accounting firm, currently BDO) — which is meaningfully weaker than an audit. For years, critics argued USDT wasn't fully backed, and in 2021 they were partly vindicated: the New York Attorney General found Tether had at times misrepresented its reserves, fined it $18.5M, and banned it from serving New York. The CFTC separately fined Tether $41M the same year for making untrue statements about its backing between 2016 and 2019.
Since then, Tether has shifted its reserves heavily into US Treasury bills and reports multi-billion-dollar profits (over $13B claimed for 2024 alone, making it one of the most profitable companies per employee on earth). The reserves today are almost certainly in far better shape than during the 2017–2019 era — but the core criticism stands: users are trusting a private company's word, verified by attestations rather than a full audit.
Regulatory pressure: MiCA and beyond
Europe's MiCA framework requires stablecoin issuers to be authorised in the EU — Tether chose not to seek authorisation, so major exchanges delisted USDT trading pairs for European users through 2024–25, pushing EU volume toward compliant alternatives like USDC. In the US, stablecoin legislation moved to the centre of crypto policy, with reserve, audit, and licensing requirements that would force significant changes to how Tether operates.
Tether's response has been to lean into markets where dollar access is genuinely scarce — emerging economies across Latin America, Africa, and Asia, where USDT on cheap chains like Tron functions as a de-facto digital dollar for people whose local currencies inflate faster than the dollar.
USDT is not decentralised money. Tether Ltd can freeze any address (and has frozen thousands, usually at law-enforcement request). Redemption is gated to large verified customers. And the whole system rests on trusting one company's reserve claims. USDT has survived every crisis so far — but 'it hasn't broken yet' is a track record, not a guarantee. Live data: CoinGecko
🟣 The full technical picture
For the technically curious.
Key facts
- Token: USDT — issued on 10+ chains (largest: Tron, Ethereum, then Solana, TON and others)
- Launched: 2014 as Realcoin; renamed Tether; issuer Tether Ltd (same parent group as Bitfinex)
- Scale: Largest stablecoin by far — roughly $140B+ in circulation by 2025, the majority of all stablecoin supply
- Reserves: Mostly US T-bills per quarterly BDO attestations; no full independent audit ever published
- Enforcement history: NYAG settlement $18.5M + NY ban (2021); CFTC fine $41M (2021)
- Peg mechanism: Mint/redeem at $1 for verified customers ($100k minimum); arbitrage keeps market price near $1
- Controls: Issuer can freeze/blacklist addresses on demand
- EU status: Not MiCA-authorised — delisted for EU users on major exchanges in 2024–25
- India tax: VDA — 30% gains tax + 1% TDS (yes, even stablecoin trades)