A stablecoin is a token on a blockchain designed to hold a steady value, typically one token aiming to equal one US dollar. The most common type is backed by reserves the issuer holds (cash and short-term government securities), and the token is effectively an IOU you can redeem with the issuer. Holding a stablecoin is not the same as holding a bank deposit: it isn't a balance at your bank, and it generally isn't covered by deposit insurance. Its stability and redeemability depend on the issuer's reserves and on it actually paying out at par.
In a flow
In an on-chain payment, the stablecoin itself is the money leg, sending the token typically transfers value directly between wallets on-chain, without a separate bank settlement leg behind it. Getting in and out of the banking system happens at the edges, through an on-ramp (fiat to token) and an off-ramp (token back to fiat).
Common misconceptions
Myth: A stablecoin is just dollars in a digital wallet, like a bank balance.
Reality: It's a token representing a claim on an issuer, not a bank deposit. It typically carries no deposit insurance, and its value holds only as long as the issuer can redeem it at par from its reserves.
Myth: A stablecoin always equals exactly one dollar.
Reality: It aims to, but the peg is a design goal, not a guarantee. The price can drift from par, and stability depends on the quality and liquidity of the issuer's reserves.
Related terms
See it in a guide
Sources
- Stablecoins and the financial system ↗ · BIS / CPMI. Analysis of stablecoin mechanics, backing, and risks.
- USDC reserves and mechanics ↗ · Circle (vendor). Issuer documentation on how a fiat-backed stablecoin is reserved and redeemed.
Educational, plain-English explainers. Not legal, compliance, tax, or financial advice. These cover fundamentals, not current fees, limits, or rates (which change). Rails and parties vary by program and country, so verify specifics against primary sources. Last reviewed June 2026.