What is USDC?

USD Coin — a fully reserved, US-dollar-pegged stablecoin issued by Circle, available on multiple blockchains.

Last updated June 12, 2026

USDC (USD Coin) is a US-dollar-pegged stablecoin issued by Circle Internet Financial, one of the most widely used and trusted stablecoins in the cryptocurrency ecosystem. Each USDC token in circulation is backed 1:1 by cash and short-dated US Treasuries held by Circle, with regular third-party attestations of the reserves.

1 USDC is designed to always be redeemable for $1.00. Circle publishes monthly reserve attestations and complies with US money transmission regulations.

Where USDC lives

USDC is not a single chain’s asset — it is a token standard that has been deployed on many different blockchains. The most active networks for USDC today are:

Ethereum mainnet — the original and most liquid version.
Base, Arbitrum, Optimism, Polygon — Ethereum Layer 2 networks where USDC transfers cost fractions of a cent.
Solana — increasingly popular for high-frequency USDC payments.
Avalanche, Near, Polkadot, and many others — supported for ecosystem-specific use cases.

When you pay with USDC, the network you use matters a lot for cost and speed. For a small everyday purchase, sending USDC on Base or Polygon will be much cheaper than on Ethereum mainnet.

Why USDC is widely accepted

USDC has become the de facto dollar for crypto payments because:

Regulatory clarity — Circle is a US-registered money services business, which gives merchants and processors confidence.
Transparency — regular attestations and growing regulatory oversight make it the most-trusted stablecoin for institutional use.
Multi-chain availability — USDC is available on more than 20 blockchains, so it can be used with virtually any wallet.
Speed and cost — on Layer 2 networks, USDC transactions confirm in seconds and cost fractions of a cent.
No taxable event — in many jurisdictions, spending USDC does not trigger capital gains tax because the asset does not change in value (unlike spending Bitcoin or Ethereum).

How to get USDC

You can buy USDC on virtually every major exchange (Coinbase, Kraken, Binance, etc.) and from most fiat on-ramps. If you already hold USDC on one chain, you can bridge it to another using Circle’s official Cross-Chain Transfer Protocol (CCTP) or third-party bridges.