Stablecoins play a key role in the crypto ecosystem, offering a digital alternative to fiat currencies while guaranteeing price stability.
USDC and USDT are the two most popular stablecoins, each with its own advantages and specifics. This comparison will help you understand their differences and choose the one that best fits your needs.
USDT
Launched in 2014, USDT is the most widely used stablecoin, with the largest market capitalisation and liquidity in the market. It is issued by Tether Limited, a company linked to Bitfinex.
Peg: USDT is pegged to the US dollar, with reserves made up of cash, government bonds and other financial assets. However, the lack of transparency around these reserves has often drawn criticism.
Advantages: wide adoption, strong liquidity, supported across several blockchains (Ethereum, Tron, Solana…).
Drawbacks: lack of transparency on reserves, contested audits, regulatory risk.
European regulation: the European Union has tightened restrictions on stablecoins that don’t comply with MiCA (Markets in Crypto-Assets), banning the use of USDT for certain services within the EU since 2024. Platforms registered in Europe must now limit its use, which could favour the adoption of regulated stablecoins such as EUROe or USDC, better aligned with the transparency and collateralisation requirements imposed by MiCA.
USDT remains traders’ preferred stablecoin for its availability and high volumes, but its opacity around reserves raises concerns.
USDC
Launched in 2018 by Circle in partnership with Coinbase, USDC is a stablecoin pegged to the US dollar, known for its transparency and regulatory compliance.
Peg: USDC is fully backed by cash reserves and US government bonds, with regular audits ensuring greater transparency.
Advantages: strict regulation, frequent audits, strong adoption on Ethereum, Solana, Polygon…
Drawbacks: dependence on the traditional banking system, censorship risk, lower liquidity than USDT.
European regulation: unlike USDT, USDC is better aligned with MiCA (Markets in Crypto-Assets) requirements. Circle, the issuer of USDC, is seeking full compliance with European regulations, easing its use on crypto platforms registered in the EU. With growing restrictions on USDT, USDC could become the reference stablecoin in Europe.
USDC is widely used by companies and institutions for its stability and compliance guarantees.