What is stablecoin interest? How to earn yield on your stablecoins

You've converted some crypto to stablecoins. Maybe you're sitting on the sidelines waiting for a better entry. Or maybe you've taken profits and aren't ready to cash out to fiat just yet.

Either way, the result is the same: those stablecoins are sitting idle, doing nothing.

Stablecoin interest changes that. It's the yield you earn by depositing your stablecoins somewhere they can be used, usually, lent out to borrowers who pay for the privilege. The mechanics mirror traditional finance:

1. You provide capital
2. Someone else borrows it
3. You collect a cut of the interest they pay

The difference? There's no bank taking most of the margin. And stablecoin interest rates often beat what traditional savings accounts can offer.

Stablecoin interest is generated by borrowers willing to pay for access to capital. In decentralized finance (DeFi), this happens through lending protocols like Aave or Compound. You deposit stablecoins into a smart contract. Borrowers post collateral (e.g., ETH or other crypto worth more than what they're borrowing) and pay interest to access your funds. That interest flows back to you, minus whatever cut the protocol takes.

In centralized finance (CeFi), the mechanics are similar but the counterparty is different. You deposit stablecoins with an exchange or lending platform. They might then lend those funds to institutions, traders, or other borrowers. You earn interest while they keep the spread.

The critical difference is that in DeFi, smart contracts enforce the rules automatically. In CeFi, you're trusting a company to manage your funds responsibly. Neither of these is totally risk-free, of course, both major players and protocols have failed in the past.

Yields come from real economic activity, and it's important to understand their source before depositing into a particular platform or protocol.

The main driver is the users looking to borrow funds. They may want to borrow stablecoins to leverage positions, arbitrage price differences between platforms, or access capital to avoid selling their crypto assets.

When borrowing demand spikes, interest rates rise, thereby incentivizing more deposits. Conversely, when it decreases, so too do interest rates, in turn making borrowing cheaper. For instance, Aave's USDC supply rate dropped from 4.5% in late 2025 to around 2% by early 2026 as speculative activity declined.

Some platforms subsidize yields with their own tokens to attract liquidity. This can inflate APYs dramatically (but can result in those tokens losing value over time). If you're earning 15% but half of it comes from a governance token that drops 80%, you've lost money.

Certain stablecoins share income earned on their backing assets. Circle, for instance, earns hundreds of millions quarterly from Treasury bills backing USDC, and shares a portion with distribution partners. This is how some platforms offer "free" yield on USDC balances.

Beyond lending, you can earn by providing stablecoins to liquidity pools on decentralized exchanges (DEXs). Traders swap against your liquidity, and you collect a cut of every trade. The yields can be higher, but so are the complexities — including impermanent loss if you're pairing stablecoins with volatile assets.

The simplest option involves depositing stablecoins with a centralized, reputable platform, earning interest, and withdrawing when you want. Rates typically range from 3–7% APY. Platforms like Kraken handle the complexity for you.

Protocols like Aave, Compound, and Morpho let you lend directly, with smart contracts handling collateral and liquidations. Current yields run 2–5% on Ethereum mainnet, sometimes higher on Layer 2 networks where liquidity is thinner.

You maintain custody of your assets (in a sense: they're locked in the protocol's smart contract). You also bear smart contract risk: if the code has a bug or gets exploited, your funds can vanish, as has happened before.

A newer category: stablecoins that automatically accrue yield. sUSDS (from Sky, formerly MakerDAO) earns around 4.5% APY funded by protocol revenue. sUSDe (from Ethena) uses delta-neutral strategies to generate returns. You hold the token while the yield accumulates in its value.

The advantage is simplicity, requiring only that you hold the asset. The risk is that these are more complex instruments than plain USDC, with additional layers that can break.

This is something of a middle ground between DeFi and CeFi.

Platforms like Kraken offer DeFi Earn, which routes your deposits to audited DeFi protocols (Aave, Morpho) while handling the technical complexity. You get DeFi-like yields (up to 8% APY at the time of this writing) without managing wallets, gas fees, or smart contract interactions directly.

You're still exposed to smart contract risk, but the platform handles the operational overhead. For many users, this is the sweet spot.

The more adventurous of yield chasers deposit stablecoins into DEX liquidity pools on Curve, Uniswap, or similar platforms. You earn trading fees and often additional token rewards.

Stablecoin-only pools (like USDC/USDT) minimize impermanent loss since both assets track the same value. Yields can reach 5–10%+ when incentives are active, but require active management and carry smart contract risk.

Every DeFi protocol runs on code. If that code has a vulnerability (or if someone finds a way to exploit it) funds can be drained or permanently frozen. At the time of this writing, over $77 billion has been lost to DeFi hacks, scams, and exploits since the sector emerged. Audits reduce risk, but can't eliminate it altogether. Learn more about how to stay safe in DeFi.

In CeFi, you trust a company instead of code. In the case of Celsius, this had catastrophic effects when the platform froze withdrawals and filed for bankruptcy, affecting over half a million users. The courts later ruled that customer deposits belonged to the company's bankruptcy estate, and not the customers.

Stablecoins can lose their peg. USDC dropped to $0.87 during the Silicon Valley Bank crisis in March 2023. UST collapsed entirely in 2022, wiping out $40+ billion. Even brief depegs can trigger liquidations and losses for yield farmers.

Yields aren't fixed. They fluctuate with borrowing demand, protocol incentives, and broader market conditions. The 8% you're earning today might be 3% next month.

That depends on what you're comparing it to — and how much complexity you're willing to manage.

Against a savings account paying 0.5%, even a conservative 4% stablecoin yield looks compelling. You earn roughly 8x as much while maintaining exposure to dollar-equivalent assets. For crypto-native users who hold stablecoins anyway, putting them to work is almost a no-brainer.

Against other crypto opportunities, new considerations arise. In a bull market, that 5% yield might pale against a token that doubles. However, in a bear market or prolonged periods of sideways chop, stable yield starts looking a lot more attractive.

Stablecoin interest isn't free money. It's better thought of as compensation for providing capital and taking on risk (smart contract risk, counterparty risk, regulatory risk). The yields exist because those risks are real. Understand them, size your positions accordingly, and never deposit more than you can afford to lose.

Ready to put your stablecoins to work?

Kraken offers multiple paths depending on your comfort level. Stablecoin Rewards earns automatically on your USDC and USDG balances — no action required. DeFi Earn routes your funds to audited protocols for higher yields with a simplified interface. And for those who want full control, Kraken Wallet connects you directly to DeFi.

Start small, understand what you're earning and why, and never deposit more than you're comfortable losing.