What Is a Stablecoin?

• Stablecoins are a kind of cryptocurrency designed to keep their value steady. They are often linked to things like regular money, commodities, or even other cryptocurrencies.

• Unlike other coins that can change in value quickly, stablecoins are meant to keep their price steady. This makes them helpful for daily payments or for holding money when the market is unpredictable.

• Stablecoins use different methods to stay steady, such as being backed by assets or using algorithms to control supply. The main aim is to make prices less jumpy while still letting people use cryptocurrency.

Stablecoins link their value to a more stable asset or a basket of assets. When pegged to fiat currency, such as the US dollar, the stablecoin issuer holds a reserve in the pegged asset to back each token. This structure ensures that each stablecoin can be redeemed for its equivalent value in fiat, maintaining its stability.

Some stablecoins are also algorithmically controlled, where smart contracts automatically adjust the supply based on demand to keep the value steady. Others rely on a combination of crypto assets as collateral, providing a decentralized approach to value stability.

Stablecoins play a crucial role in the crypto economy by bridging the gap between traditional financial assets and digital currency. They enable users to transfer value without the delays and fees associated with fiat, making them ideal for remittances, cross-border transactions, and liquidity in decentralized finance (DeFi) platforms.

Moreover, stablecoins offer a haven in times of crypto market volatility. They help investors park funds in a stable asset without leaving the crypto ecosystem, thereby simplifying portfolio management and risk mitigation strategies.

There are several types of stablecoins, each with its own mechanism for maintaining a stable value. Here’s an overview of the main categories:

• Fiat-collateralized stablecoins

• Crypto-collateralized stablecoins

• Algorithmic stablecoins

Each type offers unique advantages and risks, and understanding these can help users make informed decisions about which stablecoins best suit their needs.

Fiat-collateralized stablecoins

Fiat-collateralized stablecoins are backed by a reserve of traditional currencies, such as the US dollar or the euro. The issuing entity typically holds these reserves in a 1:1 ratio, ensuring each stablecoin can be redeemed for its equivalent fiat value.

Because they are fully backed and fiat-collateralized, stablecoins are less risky than other types, though they depend on centralized entities for stability. Examples include USDT and USDC.

Crypto-collateralized stablecoins

Crypto-collateralized stablecoins are backed by other cryptocurrencies, providing a decentralized backing mechanism. To address price volatility, they are often over-collateralized, meaning more cryptocurrency is held in reserve than the stablecoins issued.

This approach introduces risk from the collateral's volatility and offers a transparent, decentralized alternative. DAI is a well-known example of a crypto-backed stablecoin that uses Ethereum as collateral.

Algorithmic stablecoins do not rely on collateral but instead use smart contracts to control supply and demand. When demand rises, new tokens are minted to keep the price stable. Tokens are burned to reduce supply when it falls.

This approach makes algorithmic stablecoins highly flexible and more volatile, as they rely entirely on market dynamics and algorithmic control. UST was a prominent example until it experienced significant instability.

Stablecoin regulations are evolving, with global governments paying closer attention to their use and stability. In the US, regulators are working to establish frameworks around stablecoin issuance and reserves, aiming to protect consumers and reduce systemic risk. These regulations may impact how stablecoins are backed, issued, and used, shaping their future landscape. Staying informed on regulatory developments is key for both issuers and users.

The GENIUS Act and stablecoin oversight

The GENIUS Act, signed by President Trump into US law in July 2025, is the first federal statute focused on payment stablecoins. It authorizes FDIC-supervised banks and newly created “limited payment stablecoin companies” to issue dollar-backed tokens on public blockchains, provided they hold 100% reserves in cash, Federal Reserve balances, or Treasury bills maturing within 90 days.

Issuers must publish monthly reserve reports and obtain independent quarterly attestations, while the Office of the Comptroller of the Currency will begin granting the new charters within 180 days.

The act does not change the current tax treatment of stablecoins. Swaps and sales remain capital transactions subject to capital gains taxes. However, it signals tighter federal oversight and interest in crypto as a whole, so crypto users should watch closely for further developments.

Stablecoins can carry risks based on the type and mechanism used to maintain value. Fiat-collateralized stablecoins are the least risky, provided their reserves are managed transparently.

However, algorithmic and crypto-collateralized stablecoins may face stability issues, especially during high volatility or reduced market confidence.

Assessing the type and backing of each stablecoin can help users understand and manage these risks effectively.

Stablecoins are subject to taxation based on their use. Transactions involving stablecoins, such as trading for other crypto or making purchases, can trigger taxable events. For detailed guidance, learn how are stablecoins taxed.