CoinYQ Dossier

The dollar token that outgrew its original promise

Realcoin began with a clean diagram: dollars enter one bank account, tokens appear on Bitcoin, and redemption reverses the flow. USDT’s rise made that diagram impossible to treat as the whole story. Bitfinex became an operational bridge under common control; NYAG found that reserves were used after the exchange lost access to Crypto Capital funds; regulators forced a public accounting; and the reserve itself widened from bank dollars to a portfolio. Tether eventually announced a full audit of its 2025 financial statements, but did not publish the signed KPMG report with that announcement. USDT’s history is therefore also a history of what each document can, and cannot, prove.

Pierce, Collins and Sellars put a dollar on Omni

The surviving record does not give all three early participants the same title. Brock Pierce later called himself a principal founder but said he was never an officer or director; Reeve Collins describes himself as co-founder and chief executive; and a 2014 Coin Congress program says software engineer Craig Sellars led RealCoin development. Together, those sources show the business, executive and engineering roles around the launch without converting every role into an independently verified co-founder claim.

The first tokens appeared on Bitcoin’s Omni Layer on October 6. Realcoin became Tether the next month, shifting attention from a new ‘coin’ to the idea of tethering digital units to national currencies.

Its white paper divided the stack honestly. Bitcoin and Omni recorded tokens; Tether Limited alone accepted deposits, issued and destroyed tokens, held the fiat, and reported reserves. It promised one deposited dollar per USDT and regular professional audits, but also listed bankruptcy, bank failure, seizure and absconding as centralized risks.

Bitfinex became the route back to dollars

Rapid trading growth strained direct redemption. Tether’s own 2018 account-reopening post said the original model had become unsustainable and that customers had used Bitfinex’s larger infrastructure for one-to-one redemption before Tether reopened its own channel through a new banking relationship.

That was more than an ordinary integration. NYAG later found Bitfinex and Tether were owned and controlled by the same small group. The issuer and the exchange had separate customer promises, yet their people, banking pressures and money flows were connected.

An US$850 million hole reached the reserve

In 2018 Bitfinex lost access to roughly US$850 million handled by Crypto Capital. The executed New York settlement says the market was not told that at least US$625 million moved from Tether reserves to Bitfinex, followed by a larger credit arrangement.

The executed settlement resolved NYAG’s findings; it was not the CFTC matter described next. It required an US$18.5 million payment, barred service to New Yorkers and imposed two years of reports on reserves, account segregation and transfers between the companies.

The CFTC measured a related but distinct claim. For a 26-month sample spanning 2016–2018, it found enough fiat in Tether’s own accounts on 27.6% of days, along with undisclosed receivables and non-fiat assets. Its October 2021 order imposed US$41 million. The finding concerned statements that every token was backed by corresponding dollars safely held in Tether’s banks; it did not say every USDT was worthless.

The definition of backing changed

The original paper’s solvency equation equated circulating tokens with dollars in one reserve account. Current terms instead define reserves as cash, cash equivalents and other assets, potentially including loans and affiliate assets. ‘100% backed’ now means asset value at least equal to stated token liabilities under that definition, not one bank dollar earmarked for each wallet.

Primary redemption also narrowed into a contractual service. The February 2026 disclosure set KYC approval, a US$100,000 minimum and a fee equal to the greater of US$1,000 or 0.1%. Secondary holders can trade anywhere a venue accepts USDT, but they do not automatically become Tether customers or receive the yield earned on reserves.

From settlements and reserve reports to an audit announcement

New York’s settlement required category disclosures, and Tether developed regular reserve reports. The report for December 31, 2025 described itself as selected information rather than financial statements. It listed US$192.878 billion of assets, US$186.540 billion of liabilities and US$6.338 billion of equity for Tether International at that instant.

On August 13, 2026, Tether announced that KPMG U.S. had issued an unqualified opinion on Tether International, S.A. de C.V.’s full financial statements for the year ended December 31, 2025. That stated scope was broader than BDO’s point-in-time Financial Figures and Reserves Report and addressed the launch paper’s long-delayed audit promise.

The public evidence still stops at the issuer’s announcement: the reviewed page did not link the signed KPMG opinion or the audited statements. Even if inspected, an opinion for the year ended December 31, 2025 would not reveal every later trade, token issuance or market shock. Tether says circulation is usually updated daily and reserves quarterly, while its disclosure warns that figures may lag and are not promised at a fixed interval.

A stable price still has three moving parts

A USDT holder depends on the issuer’s assets and policies, the administrator controls of the chosen chain, and the liquidity or custody of the venue used to exit. Tether can suspend services, delay redemptions, end support for a chain and attempt freezes under its legal and risk rules.

That central control is not an accidental defect hidden behind a decentralized label; it is the mechanism that mints, redeems and enforces compliance. USDT’s achievement was making a private dollar claim travel like a token. Its recurring controversy came from mistaking the token’s visible ledger for complete visibility into the institution behind it.

How the project changed

  1. 2014-07
    Realcoin is announced

    Pierce later claimed a principal-founder role, Collins identifies as co-founder and CEO, and a contemporary program records Sellars leading development of the dollar token on the Mastercoin/Omni stack.

  2. 2014-10-06
    The first dollar tokens are issued

    Omni records the initial supply on Bitcoin while the company holds the off-chain reserve.

  3. 2014-11-20
    Realcoin becomes Tether

    The new name emphasizes linking blockchain tokens to national-currency values.

  4. 2018-11-27
    Direct redemption reopens

    Tether says rapid growth had shifted redemption through Bitfinex and now restores its own verified-customer channel.

  5. 2019-04-24
    New York obtains an injunction

    The court action restricts further reserve transfers while NYAG investigates the Crypto Capital shortfall.

  6. 2021-02-23
    NYAG settles with Tether and Bitfinex

    The companies accept an US$18.5 million payment, New York exclusion and mandatory reporting.

  7. 2021-10-15
    CFTC records the reserve misstatements

    The order imposes US$41 million and publishes the 27.6% fiat-account finding for its historical sample.

  8. 2025-01
    The customer-facing issuer relocates

    Tether International changes from a British Virgin Islands company to an El Salvador entity.

  9. 2025-12-31
    A year-end reserve report fixes a snapshot

    The assurance record states assets, liabilities and equity for Tether International at year end.

  10. 2026-02-26
    Current token terms take effect

    The terms define diversified reserves, restricted redemption and service or freeze powers.

  11. 2026-08-13
    Tether announces the KPMG opinion

    Tether reports an unqualified opinion on Tether International’s 2025 financial statements; the announcement does not publish the signed report or audited statements.

Evidence and primary sources

Last evidence review: 2026-09-05

More stories about this project

What is Tether?

Tether USD₮ (USDT) is a dollar-referenced token issued and redeemed by Tether International, S.A. de C.V. for approved customers and traded more broadly on secondary markets. The project appeared as Realcoin in 2014: Brock Pierce later described himself as a principal founder, Reeve Collins describes himself as co-founder and chief executive, and a contemporary program identifies Craig Sellars as the engineer leading development. It soon took the Tether name and issued its first dollar tokens through Bitcoin’s Omni Layer. USDT now travels on several blockchains, but those ledgers transport one issuer-managed denomination. Tether decides issuance, redemption, supported networks and freezes under its terms.

What problem does Tether solve?

Realcoin tried to separate the dollar unit used by traders from slow bank transfers between exchanges. Its first paper promised one deposited dollar for every token and portrayed the blockchain side as auditable. Growth exposed the harder half: the on-chain supply could be counted publicly, but bank balances, loans, custodians and related-party transfers could not. Bitfinex’s loss of access to roughly US$850 million at Crypto Capital and its use of Tether reserves turned that accounting gap into a governance and regulatory crisis. The modern system answers with broader reserve definitions, quarterly reports and Tether’s 2026 announcement of a 2025 financial-statement audit, while direct redemption remains restricted rather than automatic for every wallet.

How does Tether work?

An approved customer sends fiat to Tether and receives newly issued USDT; on redemption Tether removes tokens from circulation and pays face value less fees. The February 2026 disclosure set a US$100,000 minimum, KYC approval and a redemption fee equal to the greater of US$1,000 or 0.1%. Other holders usually buy and sell on exchanges, where price and liquidity come from market participants. Current reserves may include cash, cash equivalents, other assets, loan receivables and affiliate assets. BDO’s report on the 2025-12-31 Financial Figures and Reserves Report listed US$192.878 billion of assets and US$186.540 billion of liabilities for Tether International at that instant. Tether later announced an unqualified KPMG opinion on that entity’s full 2025 financial statements, but the announcement page did not publish the signed opinion or those statements. Contracts move USDT on each chain, while Tether’s policies determine which representation is recognized and when tokens or services can be frozen.

Key facts

  • Tether dates Realcoin to 2014. Brock Pierce calls himself a principal founder, Reeve Collins identifies as co-founder and CEO, and a 2014 program records Craig Sellars as leading RealCoin development.
  • The first USDT issuance occurred on 2014-10-06 through Bitcoin’s Omni Layer.
  • The original paper promised deposited fiat at 1:1; current terms define reserves more broadly to include cash, equivalents, other assets, loans and affiliate assets.
  • NYAG found Bitfinex and Tether were controlled by the same small group and that Bitfinex drew at least US$625 million from Tether after losing access to about US$850 million.
  • The 2021 NYAG settlement required US$18.5 million, ended New York trading and imposed reporting; the CFTC separately imposed US$41 million.
  • The CFTC found sufficient fiat in Tether accounts on only 27.6% of days in a 26-month 2016–2018 sample.
  • Direct purchase and redemption in the February 2026 disclosure required KYC and at least US$100,000; redemption cost the greater of US$1,000 or 0.1%.
  • The 2025 year-end assurance report stated assets of US$192.878 billion, liabilities of US$186.540 billion and equity of US$6.338 billion for Tether International.
  • On 2026-08-13 Tether announced an unqualified KPMG U.S. opinion on Tether International’s 2025 financial statements; its announcement did not link the signed report or audited statements.
  • Tether can suspend redemption, discontinue chain support and attempt token freezes under the circumstances in its terms.

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Frequently asked questions

Who created USDT?

The record assigns different roles. Brock Pierce later called himself a principal founder, Reeve Collins describes himself as co-founder and CEO, and a 2014 conference program names engineer Craig Sellars as leading RealCoin development. That contemporary source does not itself call Sellars a co-founder.

Is every USDT backed by one dollar in a bank account?

That was the simple model in the original paper. Current terms say reserves equal the stated token value but allow cash, equivalents, other assets, loan receivables and affiliate assets, so reserve quality and liquidity cannot be reduced to bank cash.

What did regulators find about the old reserve claims?

The CFTC found that full dollar-backing statements were misleading from June 2016 to February 2019 and that sufficient fiat was held on only 27.6% of days in its sample. NYAG separately documented Bitfinex’s roughly US$850 million processor shortfall and transfers from Tether reserves. Both matters ended in 2021 settlements without erasing the findings.

Can any wallet redeem USDT directly for one dollar?

No. Direct redemption is for KYC-approved customers under Tether’s terms. The February 2026 disclosure set a US$100,000 minimum and a fee equal to the greater of US$1,000 or 0.1%; most holders instead use secondary markets.

What did the 2026 KPMG announcement establish?

Tether said KPMG U.S. gave an unqualified opinion on Tether International’s financial statements for the year ended 2025-12-31. CoinYQ found no signed KPMG report or audited statements linked from that announcement, so it establishes what Tether publicly said and the stated scope, rather than allowing readers to inspect the underlying opinion. It is not continuous reserve assurance or a price guarantee.

Can Tether freeze USDT?

Yes in circumstances listed by its terms, including government direction, sanctions, investigations, fraud, suspected unauthorized access and unacceptable legal risk. The relevant chain contract and Tether’s ability to act matter separately.

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