Stablecoins in 2026: How They Work & the GENIUS Act

A clear guide to stablecoins in 2026 — how they work, the types, the landmark GENIUS Act, leading issuers, risks, and why banks are racing to adopt them.

Fintech · Global · 2026-06-22 · 12 min read · By John Awab

For most of their history, stablecoins lived in a regulatory gray zone — wildly useful inside crypto markets but viewed warily by banks and lawmakers. That changed with the GENIUS Act, the first comprehensive US stablecoin law, which gave these digital dollars a clear legal framework and a seat at the traditional finance table. The result has been explosive: the stablecoin market has roughly tripled since 2023 to around $300 billion, banks and payment giants are racing to issue their own, and stablecoins are quietly becoming the plumbing of global digital payments.

This guide explains what stablecoins are, how they work, the types, the landmark new regulation, who's issuing them, the risks, and where they're headed. (Stablecoins involve financial and regulatory complexity; this is general information, not financial advice — verify current details and consult a professional before acting.)

What Are Stablecoins?

A stablecoin is a type of cryptocurrency designed to maintain a stable value, usually by being "pegged" one-to-one to a reference asset — most often the US dollar. They combine the speed, programmability, and borderless nature of crypto with the price stability of traditional money, aiming to be worth $1 today, tomorrow, and next year — unlike Bitcoin, whose price swings dramatically.

That stability is the whole point. It makes stablecoins usable as actual money — for payments, savings, and settlement — rather than as a speculative asset. In effect, a stablecoin is a digital token that represents a dollar (or euro, or other asset) and can move across the internet in seconds.

How Stablecoins Work

The mechanism is conceptually simple: for every stablecoin in circulation, the issuer is supposed to hold one unit of backing in reserve, so holders can always redeem their token for the underlying value. A well-run dollar stablecoin issuer holds reserves in cash and short-term, highly liquid assets like Treasury bills, and lets holders redeem coins for dollars at par (one-to-one).

The credibility of that promise is everything. If users trust that a stablecoin is fully backed and redeemable, it holds its peg. If confidence in the reserves erodes, the coin can "depeg" — falling below its intended value — which is why reserve quality and transparency are the central questions for any stablecoin.

The Types of Stablecoins

Not all stablecoins are built the same way:

• Fiat-backed — backed one-to-one by cash and cash-equivalent reserves (like Treasury bills). The most common, most regulated, and generally safest model. Examples include USDC and USDT.

• Crypto-backed — backed by other cryptocurrencies held as collateral, usually over-collateralized to absorb volatility. More decentralized but more complex; DAI is the best-known example.

• Algorithmic — attempt to maintain their peg through algorithms and supply adjustments rather than full reserves. After the high-profile collapse of TerraUSD in 2022 wiped out tens of billions, these now make up less than 1% of the market and are widely viewed as the riskiest type.

The clear trend, especially under new regulation, is toward fully-reserved, fiat-backed coins.

What Stablecoins Are Used For

Stablecoins started inside crypto but are spreading into the real economy:

• Payments — fast, low-cost transactions, increasingly for cross-border payments, remittances, and payroll where traditional rails are slow and expensive.

• Settlement — businesses and institutions using them to settle trades and move money in real time, around the clock.

• Crypto trading — the original use, as a stable place to park value between trades.

• Tokenization — serving as the cash leg for trading tokenized assets like bonds, real estate, and private equity.

• Financial inclusion — in countries with unstable local currencies or limited banking, dollar stablecoins offer a way to hold and move value; adoption has grown fast in parts of Africa and Latin America.

Analysts estimate stablecoins could account for a low single-digit percentage of all US dollar payments in 2026, rising toward roughly 10% by 2030.

The Market and Leading Issuers in 2026

The market has grown dramatically — to roughly $260–315 billion in total value, about three times its 2023 level — and is increasingly integrating with mainstream finance. Two issuers dominate: Circle (issuer of USDC, known for transparency and regulatory compliance) and Tether (issuer of USDT, the largest), which together account for more than 80% of supply. But the field is broadening fast: PayPal offers PYUSD (issued by Paxos), JPMorgan has long run an internal JPM Coin for institutional settlement, and new entrants including Mastercard, Visa, Fiserv, and major banks are all racing to launch or integrate stablecoin products under the GENIUS Act framework.

The GENIUS Act and Global Regulation

The pivotal development is regulatory. The GENIUS Act (Guiding and Establishing National Innovation for U.S. Stablecoins Act), signed into law in 2025, is the first comprehensive US crypto legislation, establishing a federal framework for payment stablecoins. Its key provisions:

• Only "permitted issuers" — bank subsidiaries or qualified federal/state-regulated entities — may issue payment stablecoins for US users.

• One-to-one reserves in cash and short-term Treasuries are required.

• Payment stablecoins are not securities, removing a major source of legal uncertainty.

• Issuers must comply with anti-money-laundering rules under the Bank Secrecy Act.

• A controversial ban on issuers paying interest (yield) to holders — which banks favor and the crypto industry opposes as anticompetitive.

Importantly, the law passed but implementing rules are still being written by agencies through 2026, so the framework is real but not yet fully operational. Globally, the picture is fragmented: the EU regulates stablecoins under its MiCA framework, and Singapore, Hong Kong, and others have their own regimes — creating a patchwork that issuers must navigate across borders.

The Bank Disruption Debate

Stablecoins sit at the heart of a fierce fight over the future of money. Because they can function like a digital dollar, they could pull deposits out of banks — and US regulators have flagged a large pool of transactional bank deposits as potentially "at risk," with estimates that stablecoins could meaningfully reduce bank lending if adoption shifts money away from deposits. Banks support the GENIUS Act's yield ban precisely to blunt that competition, while crypto firms argue the yield ban disadvantages them versus money market funds and slows adoption.

The Risks

Stablecoins are not risk-free. Depegging can occur if reserves are inadequate or confidence collapses. Reserve transparency varies by issuer, and not all have historically disclosed their backing clearly. Transactions are irreversible, so there's no built-in recourse for fraud or error the way a bank chargeback offers. There are concerns about use in illicit finance, which the new AML rules aim to address. And concentration in a few large issuers poses systemic questions if one were to fail.

Stablecoins vs CBDCs and Tokenized Deposits

Stablecoins aren't the only way to put dollars on a blockchain. Central bank digital currencies (CBDCs) are government-issued digital money — China has launched a digital yuan, though the US has declined to pursue a retail version. Tokenized deposits are digital tokens issued by banks against their deposits, backed by existing bank regulation and deposit insurance. Each represents a different vision of digital money — private-issuer stablecoins, public CBDCs, or bank-backed tokenized deposits — and they are likely to coexist rather than one winning outright.

The Future

Expect stablecoins to keep integrating into mainstream finance: more banks and payment networks issuing and accepting them, deeper use in cross-border payments and settlement, growing roles in tokenization, and clearer rules as GENIUS Act regulations finalize. The market is widely expected to keep growing strongly, with some projections running into the trillions by 2030. The open questions are how the bank-versus-crypto tensions resolve, how global regulation harmonizes, and whether stablecoins remain a US-dollar-centric phenomenon or evolve into a multi-currency system.

Conclusion

Stablecoins have grown from a crypto trading tool into a roughly $300 billion pillar of digital finance — dollar-pegged tokens that move money at internet speed while holding steady value. Understanding how they work (peg plus reserves), the types (fiat-backed, crypto-backed, algorithmic), and the landmark GENIUS Act that finally regulated them is essential to grasping where money itself is heading.

The opportunities are substantial — faster payments, cheaper remittances, financial inclusion, and a foundation for tokenization — but so are the risks around reserves, depegging, and bank disruption. As regulation matures and banks, fintechs, and payment giants pile in, stablecoins are poised to reshape how value moves around the world. As always, this is general information, not financial advice — do your own research before using or holding any digital asset.

Want more? Explore AxionSquare for ongoing coverage of stablecoins, fintech, blockchain, and the future of money.

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