Complete guide

What is a stablecoin?

Updated August 2026. Evergreen page — refreshed in place as facts change.

Stablecoins are the part of crypto that behaves like money: a dollar that moves like an email — in minutes, at any hour, to anyone with a wallet — instead of like a bank transfer bound to business days and cutoffs. This guide explains how they hold their value, what changed when the US regulated them in 2025, which coins matter in 2026, and where they genuinely beat bank rails (and where they don't).

What is a stablecoin, in plain English?

A stablecoin is a cryptocurrency engineered not to move in price. One token targets one unit of a reference currency — for the coins that matter commercially, one US dollar. You send and receive it on public blockchains like any crypto asset, but its value stays at a dollar, so it works for payments, invoicing, payroll, and savings in a way that volatile assets like bitcoin cannot.

Think of it as a digital cash claim: the issuer holds a pool of reserve assets, and each token is a claim redeemable against that pool at $1.00. The token moves on-chain; the reserves sit in banks and Treasuries off-chain.

How do stablecoins stay at $1.00?

The major dollar stablecoins are fiat-backed: for every token in circulation, the issuer holds about a dollar of reserves — bank deposits, US Treasury bills, and overnight repurchase agreements. Two mechanisms keep the market price pinned. First, redemption: qualified holders can return tokens to the issuer for dollars, so a price below $1.00 creates a riskless arbitrage that pulls it back. Second, issuance: new tokens are only created when someone deposits dollars, so supply mirrors reserves.

A smaller family is crypto-collateralized (DAI/USDS is the long-running example), backed by an over-collateralized pool of crypto assets rather than bank reserves. And the cautionary tale is the algorithmic model — TerraUSD, which held its peg with an incentive mechanism instead of assets and collapsed in May 2022, erasing roughly $40 billion. US law now effectively excludes that model from the regulated payment-stablecoin category.

What did the GENIUS Act change in 2025?

The GENIUS Act, signed in July 2025, gave the US its first federal framework for payment stablecoins. The essentials: issuers must be licensed (federally or under qualifying state regimes), must back tokens 1:1 with high-quality liquid assets such as cash and short-term Treasuries, must publish monthly reserve disclosures, and are prohibited from paying interest or yield to holders on the stablecoin itself. Reserve assets are ring-fenced for holders if an issuer fails.

The practical effect: dollar stablecoins moved from a regulatory gray zone into a supervised product category, which is why banks, payment networks, and treasurers spent 2025–2026 building on them. It also drew a clean line between compliant payment stablecoins and everything else — the distinction to check before holding size in any token.

What are the major stablecoins in 2026?

Two coins dominate commercial use, with a longer tail behind them:

What are stablecoins actually used for?

The real-world uses in 2026, roughly in order of volume:

• Trading and settlement — the cash leg of crypto markets runs on stablecoins.
• Cross-border transfers — minutes and cents instead of correspondent-bank days and fees; see our stablecoin vs wire comparison for the honest math.
• Dollar access — in high-inflation economies, a phone wallet holding digital dollars is a savings account the local banking system can't offer.
• Business payments and payroll — paying international contractors without wire fees or cutoff times.
• Treasury operations — moving value between entities and exchanges 24/7.

Can a stablecoin lose its peg?

Yes — briefly and instructively, even for the well-run ones. In March 2023, USDC traded near $0.87 for a weekend after Circle disclosed $3.3 billion of reserves at the failed Silicon Valley Bank; it recovered to $1.00 within days once regulators backstopped the bank's deposits. USDT has dipped a few cents below the peg in stressed markets, notably May 2022, and recovered as redemptions did their work. TerraUSD, with no real reserves, went to effectively zero in the same month.

The lesson is not 'stablecoins break'; it is that a stablecoin is exactly as good as its reserves and its redemption mechanism. Fiat-backed coins with liquid, disclosed reserves have consistently snapped back; designs without them have not. Stablecoins are not FDIC-insured deposits — the reserve disclosures are the thing to read.

Do stablecoins pay interest?

The token itself does not — and under the GENIUS Act, US-regulated payment stablecoin issuers are prohibited from paying holders yield on the stablecoin. Yield offers you see in the market come from somewhere else: lending programs, DeFi protocols, or tokenized money-market funds, each with its own risk and regulatory profile distinct from simply holding the coin. Treat 'earn on your stablecoins' as a separate product with separate risks, because it is.

How do stablecoins compare to bank rails?

Speed and availability are the headline: a stablecoin transfer settles in minutes, any hour of any day, for network fees usually under a few dollars — while wires settle in hours on business days for $25–$50, and ACH takes 1–3 business days. The trade-offs are real too: the recipient must be able to receive and off-ramp digital assets, and both endpoints still carry know-your-customer obligations at regulated on/off-ramps.

We run both rails at Anytime Capital, so the comparison page pulls no punches in either direction: stablecoin vs wire transfer for large payments.

How do you hold and send stablecoins?

Two custody models. On an exchange or platform, the service holds the keys — convenient, but you hold a claim on the platform rather than the asset. In a non-custodial wallet, you hold the keys and the tokens are yours on-chain; the responsibility for securing the recovery phrase is yours too.

An Anytime Capital account pairs a cash account with a non-custodial wallet supporting USDT and USDC (alongside BTC, ETH, SOL, LTC and TRX) — you hold your own keys, and on/off-ramping to dollars happens in the same app. One practical note whichever route you choose: a stablecoin lives on a specific network (USDT on Tron is not the same rail as USDT on Ethereum), and tokens sent on the wrong network can be unrecoverable. Match the network to what your recipient can receive, every time.