USDT and USDC are both dollar stablecoins, but they differ in who issues them, where they are regulated, what backs them and who can cash them in with the issuer.

USDT is issued by Tether International in El Salvador, is backed mostly by US Treasury bills but also by gold, bitcoin and secured loans, and runs natively on 13 networks. USDC is issued by Circle in the US and, for Europe, in France, is backed by a government money market fund and bank cash, is an authorized e-money token under the EU’s MiCA rules, and runs natively on 37 networks.

Neither is a bank deposit, and this is a comparison, not a recommendation to buy either token. Figures below come from the issuers’ own pages and were checked on September 30, 2026; each token’s full profile is in our stablecoin list.

USDT vs USDC at a glance

USDT (Tether) USDC (Circle)
Issuer Tether International, S.A. de C.V. (El Salvador) Circle Internet Financial, LLC; Circle Internet Financial Europe SAS in the EEA
Main regulator El Salvador’s National Commission of Digital Assets (CNAD) US state money transmission laws; France’s ACPR in the EEA
MiCA e-money token No Yes
Supply (issuer figure) 183.79 billion (September 28, 2026) 74.66 billion (September 29, 2026)
Latest reserve report June 30, 2026, quarterly, BDO August 31, 2026, monthly examination, weekly disclosure
Reserves in that report $187.75 billion against $183.64 billion of liabilities $73.40 billion
Main reserve assets US Treasury bills, reverse repos, precious metals, secured loans, bitcoin Circle Reserve Fund (managed by BlackRock), bank cash
Direct redemption Verified Tether customers, $100,000 minimum, fee of the greater of $1,000 or 0.1% Circle Mint accounts; in the EEA any holder, no minimum
Native networks 13, including Ethereum, Tron, Solana, TON 37, including Ethereum, Solana, Base, Polygon, Arbitrum

Details and sources: USDT profile, USDC profile.

What backs each token

A reserve report should name the issuing entity, the liabilities measured, the assets held and the date. Read the two at their own dates: a supply figure from this week and a reserve report from last quarter answer different questions.

USDC. Circle’s report for August 31, 2026 shows $73.40 billion of reserve assets, including $62.32 billion in the Circle Reserve Fund, a government money market fund managed by BlackRock, and $9.59 billion in cash at regulated financial institutions. Circle’s USDC Terms say the reserves are held “in segregated accounts apart from Circle’s corporate funds,” for the benefit of holders. Circle publishes reserve data weekly and an independent examination monthly on its transparency page.

USDT. Tether’s report for June 30, 2026, with an assurance opinion from BDO, shows total reserves of $187.75 billion against liabilities of $183.64 billion, about $4.1 billion more assets than liabilities (a calculation). The largest items were US Treasury bills ($114.96 billion), reverse repurchase agreements ($25.62 billion), precious metals ($18.84 billion), secured loans ($13.45 billion), bitcoin ($5.80 billion) and public equities ($3.76 billion). Tether’s terms say reserves may include “loan receivables and other assets from Affiliates.” Tether reports quarterly and publishes circulation daily on its transparency page.

The practical difference: USDC’s reserve is almost entirely cash and short-dated government exposure, while USDT’s includes assets whose value moves, such as gold and bitcoin, offset by the buffer of assets over liabilities. Tether also separates authorized tokens not yet issued from circulating ones; inventory prepared for issuance is not the same as tokens in users’ hands.

Who can redeem, and on what terms

Only the issuer turns a token back into dollars at par. Most people instead sell on an exchange, where the price is set by the market.

USDT. Tether’s fees page sets a $100,000 minimum for a purchase or redemption, a redemption fee of the greater of $1,000 or 0.1%, and a one-time 150 USDT verification fee. Its terms call redemption “a contractual right personal to you” as a verified customer. These conditions concern direct issuer access; they do not impose a minimum on trades at an exchange.

USDC. Outside the EEA, holders with a Circle Mint account, a service for businesses such as exchanges and payment firms, can redeem 1 USDC for $1. In the EEA, MiCA gives every holder the right to redeem at par at any time: businesses through Circle Mint and individuals through a request form, with no minimum amount, according to Circle’s MiCA redemption policy.

More on the steps in what happens when you redeem a stablecoin.

Is USDC safe?

It depends on which risk you mean. From Circle’s own disclosures:

  • Backing. Circle says each USDC is backed by an equivalent amount of dollar assets in segregated accounts, and publishes the composition weekly.
  • Bank risk. In March 2023, $3.3 billion of the USDC reserve, about 8%, was deposited at Silicon Valley Bank when it failed. USDC lost its dollar peg until US authorities said all depositors would be made whole; Circle then said the de-peg closed and moved its cash mainly to BNY Mellon. Over the following days it redeemed $3.8 billion of USDC.
  • No deposit insurance. The USDC Terms say USDC is not covered by FDIC or SIPC protection.
  • No interest. The terms say holders are “not entitled to any interest” earned on the reserves. Any yield on USDC comes from a platform, not from Circle; see stablecoin yields.
  • Blocking. Circle reserves the right to “block” addresses it links to illegal activity or breaches of its terms, and to freeze the USDC on them.

The same questions apply to USDT. Tether’s terms state that its tokens are not covered by FDIC or SIPC or similar protections, and that Tether may “freeze any Tether Tokens held by you” where the law requires it or where it judges it prudent. Both issuers can therefore freeze tokens at an address; neither token is protected like a bank deposit.

Regulation: the EU makes the biggest difference

Under MiCA, a dollar stablecoin is an e-money token that only an authorized bank or e-money institution may issue. USDC is on ESMA’s register of authorized e-money tokens; USDT is not. In January 2025, ESMA told EU trading platforms to stop making non-compliant stablecoins available for trading, allowing sell-only services until the end of March 2025. For a user in the EU, that affects which token a regulated platform can offer. Background: MiCA and stablecoins.

Outside the EU, USDT is authorized by El Salvador’s CNAD, and USDC is regulated as stored value under US state money transmission laws. Circle announced final approval for a national trust bank from the US Office of the Comptroller of the Currency on July 10, 2026. See who regulates a stablecoin.

Networks and fees

The fee for moving either token depends on the network, not on the token. Both run natively on Ethereum and Solana, among others. USDT is issued natively on Tron and TON; USDC is not. USDC is issued natively on Base, Arbitrum and Polygon; USDT is not in Tether’s list for those.

On TRON, a USDT transfer uses about 64,000 energy, or about 130,000 to an address that has never held USDT, paid in burned TRX unless you have energy. Our guide to sending USDT on TRON works through the cost, and TRON energy compares services that rent energy.

The name in a wallet is not the full identifier: the network and token contract are part of it. Circle notes that bridged USDC on some networks is issued by a third party, not by Circle. Always confirm the receiver supports the exact token on the exact network; see choosing a network and native and bridged stablecoins.

USDT or USDC: matching the choice to the task

  • Paying someone: use what the recipient accepts, on a network they support.
  • Holding in the EU: a MiCA-authorized token such as USDC is the one EU platforms can offer and that gives a legal redemption right.
  • Low-cost transfers to exchanges and wallets that use Tron: USDT is native there; USDC is not.
  • Treasury holdings: compare reserve composition, report frequency and whether you can open a redemption account with the issuer.

No single number combines these. A low network fee says nothing about redemption access, and a detailed reserve report does not mean a given exchange will process a withdrawal quickly.