USDT is the biggest and most traded stablecoin; USDC holds the plainer reserves and sits closer to US rules. Here are both side by side from the issuers’ own documents: who issues them, what backs them, who checks it, and who can cash out at $1.
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It depends on which risk you mean. If the question is reserve quality and legal protection for a US holder, USDC is the more conservative design: its reserves fit the asset list the GENIUS Act will require, and its issuer is US-based and supervised. If the question is liquidity, USDT is larger and trades on more venues; Tether issues it on 13 blockchains. Both are claims on private companies. Neither is FDIC insured or SIPC protected, and neither issuer pays you interest.
Scope: this compares USDT (Tether) and USDC (Circle) as dollar balances for a US investor, as of October 26, 2026, using the issuers’ own reports and regulators’ documents. It does not cover coin trading, DeFi yields or other stablecoins. For the general risks of any stablecoin, start with are stablecoins safe? It is education, not advice for your situation.
Primary sources for each row are listed under Sources. Dates matter: issuer reports come out monthly or quarterly.
| USDT (Tether) | USDC (Circle) | |
|---|---|---|
| Issuer | Tether International, S.A. de C.V. (El Salvador) | Circle Internet Financial, LLC (US); Circle Internet Financial Europe SAS for the EEA |
| Licence / regulator | Authorized issuer under El Salvador’s Digital Asset Issuance Law; registered with FinCEN as a money services business | OCC final approval for a national trust bank, Circle National Trust (reported Aug 5, 2026); EU e-money institution licensed in France |
| US status under the GENIUS Act | Not a US-permitted issuer; Tether launched a separate token, USAT, issued by Anchorage Digital Bank, N.A. (Jan 27, 2026) | Not yet a permitted issuer: the OCC will announce separately when it starts accepting applications |
| EU status (MiCA) | Not authorized; licensed EU exchanges stopped trading it by Mar 31, 2025 | Issued under MiCA since Jul 1, 2024 |
| Size, Jun 30, 2026 (issuer reports) | $183.6B of Tether tokens issued (mostly USDT) | $73.3B USDC in circulation |
| Reserves | $187.75B at Jun 30, 2026: 61% T-bills, 14% repo, 25% gold, loans, bitcoin, equities and other | Majority in Circle Reserve Fund (USDXX), an SEC-registered government money fund managed by BlackRock; rest cash at banks |
| Excess over liabilities | $4.11B (2.24%) at Jun 30, 2026 | Monthly assurance that reserves exceed USDC in circulation; no buffer figure on the page |
| How reserves are checked | Quarterly ISAE 3000R assurance (BDO); first full audit (KPMG) of 2025 statements | Weekly holdings disclosure; monthly assurance from a Big Four accounting firm (not named on the page); Deloitte & Touche is Circle’s independent auditor |
| Who can redeem at $1 | Verified customers; $100,000 minimum; fee: greater of $1,000 or 0.1%; $150 verification fee | Approved Circle Mint customers only; fees per Circle’s fee schedule |
| Blockchains | 13 (Jun 30, 2026 report) | Many; check Circle’s list for the one you use |
| Stress record (sources cited here) | Caught in the May 2022 stablecoin run that spread from TerraUSD (New York Fed) | Fell to $0.88 in March 2023 (Silicon Valley Bank) |
USDT’s reserves are mostly bills and repo, plus a quarter in assets the GENIUS Act will not accept as reserves. USDC’s are cash and a government money fund. Share of Tether’s reserves on June 30, 2026, grouped by whether the asset type appears on the GENIUS Act / OCC reserve list (an editorial mapping, not a legal determination; term repo may not qualify because the rule requires overnight maturity):
The non-cash slice moved the buffer. Tether’s excess fell from $8.23 billion at March 31 to $4.11 billion at June 30, 2026, a quarter that ended with the report valuing gold at $4,008 an ounce and bitcoin at $58,642 (Tether’s Q1 and Q2 2026 releases). USDC has no gold or bitcoin, so its risk sits elsewhere: in the banks that hold its cash, as 2023 showed. For how a government money fund works and what it holds, see tokenized Treasury funds.
A simple worked example uses each issuer’s own figures. For Tether, divide the excess by the assets most likely to lose value. For USDC, look at the one time its reserves were hit.
| Step | USDT (Jun 30, 2026) | USDC (Mar 10, 2023) |
|---|---|---|
| Reserves | $187.75B | about $40B |
| Assets at risk | $47.11B of gold, bitcoin, loans, equities, other investments, bonds | $3.3B cash at Silicon Valley Bank |
| Share of reserves at risk | 47.11 ÷ 187.75 = 25.1% | 3.3 ÷ 40 = 8.25% |
| Cushion before reserves fall below liabilities | $4.11B excess | Little; the coin was backed close to 1:1 |
| Loss that uses up the cushion | 4.11 ÷ 47.11 = 8.7% fall in the at-risk assets | Any unrecovered loss on the stuck cash |
| What the market did | No stress event in the period | Traded as low as $0.88; back to $1 once redemptions resumed |
Read the two columns as different risks, not a score. USDT’s buffer is exposed to market prices every day; USDC’s exposure is to a bank failure, and the GENIUS reserve requirements take effect on January 18, 2027; existing applicable reserve rules remain relevant before then. Sources: Tether’s June 2026 reserves report; the Federal Reserve’s note on the 2023 episode (FEDS Notes) and the New York Fed’s account of the $0.88 low (Liberty Street Economics).
Usually not directly. Circle’s terms say only approved Circle Mint customers can redeem USDC with Circle (USDC Terms). Tether redeems for verified customers with a $100,000 minimum (Tether fees). Worked example for a direct Tether redemption:
| Redemption size | Fee rule | Fee | Fee as % of amount |
|---|---|---|---|
| $100,000 (minimum) | greater of $1,000 or 0.1% ($100) | $1,000 | 1.00% |
| $250,000 | greater of $1,000 or 0.1% ($250) | $1,000 | 0.40% |
| $5,000,000 | greater of $1,000 or 0.1% ($5,000) | $5,000 | 0.10% |
Add the one-time $150 verification fee for a new account. Everyone else sells on an exchange or app, where the price is set by the market and the platform’s own terms apply, so the platform itself becomes part of the risk.
In the US, the GENIUS Act takes effect January 18, 2027. From July 18, 2028, US platforms may not offer a payment stablecoin unless its issuer is permitted, or is a foreign issuer from a country the Treasury finds comparable and that meets the Act’s conditions (sec. 3(b) and sec. 18, P.L. 119‑27). That is the date to watch for USDT’s US availability; Tether’s US answer so far is the separate USAT token (Tether). Details are in the GENIUS Act explained.
In the EU, Circle’s French entity has issued USDC under the MiCA regime since July 1, 2024 (Circle). USDT is not authorized: after ESMA’s January 17, 2025 statement, licensed platforms stopped trading non-compliant coins, and Binance removed USDT for EEA users on March 31, 2025 (European Systemic Risk Board, Oct 2025).
When the balance is savings. Counterexample: someone holding $300,000 in either coin for months is taking issuer, platform and chain risk for no interest, which neither issuer currently pays to holders. A Treasury bill ETF or government money fund holds the same kind of assets that back USDC and passes the yield through (see where to park large cash and SGOV). And when the coins sit on an exchange, the exchange’s solvency can matter more than the issuer’s; that is a third company to check.
The comparison matters most for people who move dollars on blockchains every day: traders, businesses paying across borders, and anyone in a country where dollar bank accounts are hard to get. For them, which venues and chains accept the coin can outweigh the reserve differences. The wider landscape is in tokenization explained.
Market intel provides market context, cross-asset analysis, an events calendar and regular written notes. These can inform your review of an existing plan; they do not reliably predict crashes or guarantee better outcomes.
On reserve composition and US regulatory status, USDC’s documented setup is more conservative: its reserves are cash and an SEC-registered government money fund, and its issuer is US-based. USDT is larger and more widely traded but held about 25% of reserves in gold, bitcoin, loans and other investments on Jun 30, 2026. Neither is insured.
Tether reported $187.75 billion of reserves on Jun 30, 2026: $114.96 billion in US Treasury bills, $25.62 billion in repurchase agreements, $18.84 billion in gold, $13.45 billion in secured loans, $5.80 billion in bitcoin, and smaller amounts of equities and other investments.
Yes, once. KPMG issued an unqualified opinion on Tether International’s 2025 financial statements, announced Aug 13, 2026, reporting reserves above liabilities by $6.814 billion at Dec 31, 2025. Its quarterly reserve reports remain attestations, not audits.
USDT is not issued by a US-permitted issuer. From Jul 18, 2028, the GENIUS Act bars US platforms from offering coins of non-permitted issuers unless a foreign issuer meets the Act’s conditions. Tether launched USAT, issued by Anchorage Digital Bank, for the US market in January 2026.
USDT is not authorized under the EU’s MiCA regulation. After an ESMA statement of Jan 17, 2025, licensed platforms stopped trading non-compliant stablecoins, and Binance removed USDT for EEA users on Mar 31, 2025. USDC has been issued under MiCA since Jul 1, 2024.
Neither issuer currently pays holders interest, and from January 18, 2027 the GENIUS Act bars issuers from doing so. Any reward on an exchange comes from the platform, under its own terms.
Tether’s minimum redemption is $100,000 and the fee is the greater of $1,000 or 0.1%, so $1,000 on $250,000 and $5,000 on $5 million, plus a one-time $150 verification fee.
On Jun 30, 2026, Tether reported $183.6 billion of tokens issued (mostly USDT) and Circle $73.3 billion of USDC in circulation. Stablecoins as a whole were about $317 billion on April 6, 2026, according to a Federal Reserve staff note.
Market intel provides a Risk ON / Neutral / Risk OFF reading from four pillars, cross-asset analysis, an events calendar and regular written notes. Context for reviewing a plan, not a crash forecast.
Educational content, not investment advice. Examples are illustrative; past performance does not guarantee future results.