What is Tether (USDT), and what really stands behind each token?
USDT is designed to stay worth one US dollar. Whether it does depends on the company behind it, so this profile focuses on how issuance, reserves and redemption actually work.
Education only, not investment, tax or legal advice. Crypto-assets are high-risk — risk disclosure.
USDTThe short answer
Tether (USDT) is a stablecoin: a crypto token meant to always be worth one US dollar. A private company, Tether, creates tokens when verified customers send it dollars and destroys them on redemption. Its value depends on Tether's reserves and on Tether honouring redemptions.
Key takeaways
- USDT was introduced in 2014 and is issued by a private company, now Tether International, S.A. de C.V.
- Only verified Tether customers can create or redeem tokens directly, with a 100,000 USD minimum redemption; everyone else trades on the market.
- Tether says every token is fully backed by its reserves; its reserve opinions are assurance engagements at a single date, not audits.
- In 2021 the CFTC and New York's Attorney General found that Tether had misstated its reserves in earlier years and fined it.
- Tether's terms let it freeze tokens and block addresses, and USDT is not legal tender or insured.
What is Tether (USDT) and who issues it?
USDT is a stablecoin: a crypto token designed to hold a steady value, in this case one US dollar. Tether says every token is pegged one-to-one to the dollar and fully backed by its reserves1. It is commonly used to hold a dollar value between crypto trades and to move dollars between platforms outside banking hours.
Unlike bitcoin, USDT is issued by a company. According to the CFTC, Tether introduced the dollar token as a stablecoin in 20148. Tether's terms of service name the issuer as Tether International, S.A. de C.V. (formerly Tether International Limited), and say the terms are governed by the law of the British Virgin Islands3.
The same terms are clear about what USDT is not: it is not legal tender, not backed by any government and not covered by insurance from Tether or its affiliates3. Our stablecoins explainer compares the main designs.
How does USDT stay at one dollar?
Tether's original whitepaper describes the cycle: a customer deposits dollars, Tether issues the same number of tokens, and when tokens are returned Tether destroys them and sends dollars back5. Tether now says that paper is kept for historical interest only, but its current terms still describe tokens being issued and redeemed for verified customers3.
The life of a USDT token
- 1
Dollars sent
A verified Tether customer sends dollars to Tether.
- 2
Tokens minted
Tether issues the same number of USDT to the customer.
- 3
USDT circulates
The tokens are traded on platforms and sent between wallets.
- 4
Tokens returned
A verified customer sends USDT back and asks to redeem.
- 5
Tokens destroyed
Tether destroys the tokens and pays out dollars, minus fees.
Direct access is limited. To have tokens issued or redeemed by Tether you must be a verified customer3. Tether's fee page lists a minimum redemption of 100,000 USD, a redemption fee of 0.1% or 1,000 USD, whichever is greater, and a 150 USD account verification fee2. Holders who are not verified customers cannot redeem with Tether; they rely on selling USDT to someone else for close to a dollar.
Worked example
What a direct redemption costs (illustrative)
Redeem the minimum 100,000 USDT: 0.1% would be 100 USD, so the 1,000 USD floor applies and you receive 99,000 USD, a 1% cost. Redeem 2,000,000 USDT: 0.1% is 2,000 USD, which beats the floor, so you receive 1,998,000 USD. Fees as listed on Tether's fee page when checked2; they can change.
What backs USDT, and who checks it?
Tether publishes a reserves report on its transparency page1. The report for 31 December 2025 came with an opinion from the accounting firm BDO Advisory Services, which gave reasonable assurance on Tether's financial figures and reserves report at that date6.
The fine print matters. The work was done under the international standard ISAE 3000 (Revised), whose full title describes assurance engagements other than audits or reviews of historical financial information6. BDO also states that its work covered only that single point in time and gave no assurance about any other date6.
What the year-end 2025 reserve opinion does and does not tell you Source: [6]
| Question | Answer from the report |
|---|---|
| Who checked? | BDO Advisory Services S.r.l. |
| Which standard? | ISAE 3000 (Revised): an assurance engagement, not an audit |
| What period? | One date only: 31 December 2025 |
| Other dates covered? | No; no procedures or assurance for any other date |
Risk warning
An attestation is not an audit
A point-in-time assurance report checks a snapshot of reserves against tokens on one day. It is not a full audit of the company's finances, and it says nothing about the days in between reports.
Which blockchains does USDT run on?
USDT has no blockchain of its own; it is a token on other networks. It started on the Bitcoin blockchain through a layer called Omni5. Today Tether lists support on networks including Ethereum, Tron, Solana, BNB Smart Chain, Avalanche, TON and Aptos4.
Support can end. Tether says it no longer issues or is obliged to redeem tokens on Kusama, Bitcoin Cash SLP, Omni Layer, EOS and Algorand4. A USDT on one network is not automatically usable on another, so the network matters as much as the address when you send it.
What have regulators found about Tether?
Figure · USDT and its regulators
- 2014Launch
- Feb 2021NY AG settlement
- Oct 2021CFTC $41m penalty
- Apr 2025SEC staff statement
- May 2025El Salvador registration
- Jul 2025GENIUS Act signed
USDT and its regulators
In February 2021, New York's Attorney General settled with Tether and the trading platform Bitfinex for 18.5 million USD. The office said that from mid-2017 at the latest Tether had no access to banking anywhere and at times held no reserves backing tokens one-for-one, contrary to its claims9. The deal required quarterly public disclosure of reserve assets by category and an end to trading with New Yorkers9.
In October 2021 the CFTC fined Tether 41 million USD for misleading statements that USDT was fully backed by dollars7. It found that Tether held enough fiat reserves on only 27.6% of days in a 26-month sample from 2016 to 20187, or 218 of 791 days by the order's count8. The order also treats USDT as a commodity under U.S. law8.
El Salvador's digital-assets regulator, the CNAD, lists Tether International, S.A. de C.V. in its public register of stablecoin issuers, number EME-0003, dated 19 May 202512. Registration is not a check on reserves.
The U.S. rulebook has since moved. In April 2025 SEC staff said that offering certain payment stablecoins does not involve securities, a staff view with no legal force10, and in July 2025 the GENIUS Act, a federal law regulating payment stablecoins, was signed11. Our GENIUS Act explainer covers what it requires; this page makes no claim about any issuer's status under it.
What are the specific risks of holding USDT?
- Issuer and reserve risk. Tether's own original whitepaper listed the dangers: the company or its bank could fail, funds could be frozen, and users must trust the custodian of the reserves5.
- Freezes. Tether's terms let it freeze tokens and blacklist addresses where the law requires or where it judges this prudent3.
- Limited redemption. Only verified customers can redeem directly, with a high minimum23; others depend on market buyers, and the market price can slip below a dollar.
- No safety net. USDT is not legal tender and not insured3, unlike a dollar deposit at an insured bank.
Risk warning
Stable is not the same as safe
A stablecoin's market price can fall below its target, and its value is only as good as the issuer behind it. Do not treat USDT as a bank account. Nothing here is investment advice; read our risk disclosure.
What mistakes do beginners make with USDT?
Common beginner mistakes
Treating it as an insured deposit
There is no deposit insurance behind USDT. Your protection is only as good as Tether's reserves and conduct.
Picking the wrong network
Sending USDT on a network the receiver does not support can strand the funds. Confirm the network, not just the address.
Assuming you can always redeem at $1
Direct redemption is for verified customers with at least 100,000 USD. Small holders sell at whatever the market pays.
Frequently asked questions
Is USDT the same as having a dollar in the bank?
No. Tether's terms say its tokens are not legal tender, not government-backed and not insured3. A bank deposit may be covered by deposit insurance; USDT is a claim on a private company.
Can Tether freeze my USDT?
Yes. Its terms allow it to freeze tokens and blacklist addresses when required by law or when it considers it prudent3.
Can anyone redeem USDT for dollars with Tether?
Is USDT a security in the United States?
The CFTC's 2021 order treats USDT as a commodity8. A 2025 SEC staff statement said certain payment stablecoins are not securities but has no legal force and does not name issuers10. Our SEC vs CFTC explainer has more.
The bottom line
USDT is a dollar-tracking token whose value rests on one company's reserves and its promise to redeem. Tether publishes point-in-time reserve opinions, not audits, and regulators found it misstated its backing in earlier years. Use it knowing it is a claim on a private firm that can freeze tokens.
Sources
- Transparency — Tether (tether.to) Primary source
- Fees — Tether (tether.to) Primary source
- Terms of Service — Tether International, S.A. de C.V. (tether.to) Primary source
- Supported Protocols — Tether (tether.to) Primary source
- Tether: Fiat currencies on the Bitcoin blockchain (original whitepaper, historical) — Tether Primary source
- ISAE 3000R assurance opinion on the Financial Figures and Reserves Report as at 31 December 2025 — BDO Advisory Services S.r.l. for Tether International, S.A. de C.V., 2026 Primary source
- CFTC Orders Tether and Bitfinex to Pay Fines Totaling $42.5 Million (Release 8450-21) — U.S. Commodity Futures Trading Commission, 2021 Primary source
- Order Instituting Proceedings: In the Matter of Tether Holdings Limited et al. — U.S. Commodity Futures Trading Commission, 2021 Primary source
- Attorney General James Ends Virtual Currency Trading Platform Bitfinex's Illegal Activities in New York — New York State Office of the Attorney General, 2021 Primary source
- Statement on Stablecoins — U.S. Securities and Exchange Commission, Division of Corporation Finance, 2025 Primary source
- The President Signed into Law S. 1582 — The White House, 2025 Primary source
- Issuers List: Issuers of Public Offerings of Stablecoins — Comisión Nacional de Activos Digitales (CNAD), El Salvador, 2026 Primary source
How we checked this page: every figure above links to the numbered source it came from. Spotted an error? Tell the desk — see our editorial policy.
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