How Stablecoins Work: Reserves, Redemption and Sending Money

Stablecoins have quietly become one of crypto's most useful inventions. They now power cross-border transfers, card programs and settlement at major banks, and as of this month they are heading into mainstream phone wallets. Yet many people still are not sure how a stablecoin actually holds its value or what happens when you send one. This guide explains how stablecoins work in plain language: the main types, how reserves and redemption keep a coin like USDC pegged to the dollar, and what a real stablecoin transfer looks like from start to finish.

• A stablecoin is a crypto token designed to hold a steady value, usually one US dollar.
• There are four broad types: fiat-backed, crypto-backed, commodity-backed and algorithmic.
• Fiat-backed coins like USDC hold reserves of cash and short-term government assets and can be redeemed 1:1 with the issuer.
• Stablecoins move on blockchains such as Ethereum and Solana, which makes them fast to send worldwide.

Quick Picks: Stablecoin Basics at a Glance

• Best for payments and transfers: fiat-backed stablecoins such as USDC, because of their reserve transparency and redemption rights.
• Best for on-chain lending and DeFi: major fiat-backed and crypto-backed coins, which are widely accepted across decentralized apps.
• Most important habit: always confirm the network and the address before you send.
• Biggest beginner mistake: assuming every token called "stable" works the same way. They do not.

What Is a Stablecoin?

A stablecoin is a digital token that lives on a blockchain, like Bitcoin or Ether, but is designed to keep a stable price instead of floating freely. Most stablecoins track the US dollar, so one token aims to be worth one dollar today, tomorrow and next year. That stability is the whole point. You get the speed and global reach of a crypto network without the price swings that make most cryptocurrencies impractical for everyday payments.

As ethereum.org puts it, stablecoins offer the same global reach as a cryptocurrency but with a steady value, which makes them suited to purchases and transfers that you want to arrive at a predictable amount.

What Are the Four Types of Stablecoins?

Not every stablecoin is built the same way. The method a coin uses to hold its peg determines how much you need to trust the issuer and what can go wrong. Ethereum.org groups stablecoins into four categories:

• Fiat-backed: the issuer holds real-world reserves, such as dollars and short-term Treasuries, and issues tokens at 1:1. You can redeem tokens with the issuer for the underlying currency. USDC and USDT are the best-known examples. The trade-off is centralization: you rely on the issuer holding enough reserves, which is why audits and attestations matter.
• Crypto-backed: the token is backed by other cryptocurrencies locked in smart contracts, usually with more collateral than the value of coins issued to absorb price swings. DAI, USDS and GHO are examples.
• Commodity-backed: tokens backed by a physical asset such as gold, aiming to track that asset's price rather than a currency.
• Algorithmic: coins that rely on smart contract algorithms to manage supply instead of holding reserves. This design has the weakest track record and deserves the most caution.

For payments and cross-border transfers, fiat-backed stablecoins dominate because their backing is the easiest to understand and verify.

How Do Stablecoin Reserves Work?

The reserve is what makes a fiat-backed stablecoin trustworthy. Circle's transparency page offers a clear real-world example of how USDC is backed:

• Where the money sits: most USDC reserves are held in the Circle Reserve Fund, an SEC-registered government money market fund that can hold cash, short-dated US Treasuries and overnight Treasury repurchase agreements. The rest is held as cash, mostly at large banks.
• How often it is disclosed: Circle discloses reserve holdings weekly, along with how many tokens were created and destroyed, and independent reporting on the fund's portfolio is published daily through BlackRock.
• Who checks it: a Big Four accounting firm provides monthly third-party assurance that reserves exceed the USDC in circulation, under AICPA attestation standards.

When you evaluate any fiat-backed stablecoin, look for exactly these three things: what the reserves are made of, how often they are disclosed, and who independently verifies them.

How Does Stablecoin Minting and Redemption Work?

Minting and redemption are the mechanics that hold the peg in place.

• Minting: a business or exchange sends dollars to the issuer, and the issuer creates the same number of new tokens on a blockchain.
• Redemption: a holder returns tokens to the issuer, the tokens are destroyed (often called burning), and the holder receives dollars back. Circle states that USDC is always redeemable 1:1 for US dollars.

This two-way door is why the price stays close to one dollar. If a stablecoin trades below a dollar on an exchange, traders with redemption access can buy it cheaply and redeem it for a full dollar, which pushes the price back up. If it trades above a dollar, they can mint new tokens and sell them. Individual users usually buy and sell through exchanges or apps rather than redeeming directly, but the mechanism works in the background for everyone.

Which Blockchains Do Stablecoins Run On?

Major stablecoins are issued on several blockchains at once, including Ethereum, Solana and many others. The same USDC can exist on different networks, but tokens on one network cannot be sent directly to an address on another without a bridge or a supported transfer service.

Each network has its own speed and fee profile. Solana, for example, is known for fast, low-cost settlement; the Solana Foundation reports more than $5.25 trillion in stablecoin volume on its network so far in 2026. Ethereum has the deepest ecosystem of decentralized apps. When you send or receive, the network matters as much as the token.

How Do You Send a Stablecoin Transfer Abroad?

Here is what a typical cross-border stablecoin transfer looks like, step by step:

• Step 1, fund your wallet: buy USDC with dollars through an exchange, a fintech app, or a phone wallet with a built-in on-ramp. Samsung Wallet, for instance, is adding exactly this kind of integrated USDC transfer for US Galaxy users starting in late October 2026.
• Step 2, get the recipient's details: ask for their wallet address and confirm which network it is on. Copy and paste the address; never retype it by hand.
• Step 3, send a small test: for a first transfer, send a small amount and have the recipient confirm it arrived.
• Step 4, send the full amount: network fees on fast chains are typically a tiny fraction of a dollar, and settlement often completes in seconds.
• Step 5, cash out if needed: the recipient can hold USDC, spend it, or convert it to local currency through an off-ramp such as a local exchange or a supported payout service.

Custodial vs Self-Custody Wallets

You can hold stablecoins in two kinds of wallets. A custodial wallet is run by a company, such as an exchange or a payments app, which holds the keys for you. It is convenient and often offers account recovery, but you rely on that provider. A self-custody wallet gives you the keys, usually protected by a recovery phrase. You are in full control, but if you lose the recovery phrase, nobody can restore your funds. Many beginners start custodial and move to self-custody as they gain confidence.

What Are the Risks of Stablecoins?

Stablecoins are designed to be boring, but no financial tool is risk-free. Understanding the risks is part of using them well:

• Issuer risk: a fiat-backed coin is only as strong as its reserves and the company managing them. Favor issuers with frequent disclosures and independent assurance.
• Depeg risk: a stablecoin can briefly trade away from one dollar during market stress. Algorithmic designs have historically been the most fragile.
• Wrong network or address: sending tokens to the wrong network or a mistyped address is the most common way beginners lose funds, and blockchain transfers generally cannot be reversed.
• Lending risk: ethereum.org notes you can earn interest by lending stablecoins in decentralized pools, but rates fluctuate with supply and demand and smart contracts carry their own risks.
• Scams: be wary of anyone promising guaranteed high yields, or asking for your recovery phrase. No legitimate service will ever ask for it.

Stablecoin FAQ

Are stablecoins the same as a bank deposit?

No. A stablecoin is a token issued by a company or protocol, not an insured bank account. Fiat-backed coins aim to hold dollar value through reserves, but the protections differ from a traditional deposit, so read the issuer's disclosures.

Can a stablecoin lose value?

It can temporarily trade below its peg, especially during stress. Well-reserved fiat-backed coins with redemption rights have the strongest mechanisms to return to one dollar.

Why use a stablecoin instead of a bank wire?

Speed, cost and availability. A stablecoin transfer can settle in seconds, around the clock, including weekends, often for a small fraction of a traditional wire fee.

The Bottom Line

Stablecoins work because of a simple promise backed by real assets: one token, one dollar, redeemable on demand. Learn the type of coin you are holding, check its reserves, and double-check the network before you send, and you will be using one of crypto's most practical tools the way it was meant to be used. To see how banks and payment networks are adopting them, read about the Fiserv Roughrider coin and the Open USD launch with Stripe, or browse all of our crypto coverage. This is educational content, not financial advice.

Sources: Ethereum.org — Stablecoins — accessed October 8, 2026; Circle — USDC Transparency — accessed October 8, 2026; Solana Foundation via PR Newswire — October 7, 2026.