Not financial, legal, or tax advice. Yield-generating strategies carry real risk, including potential loss of principal.

Earning yield on stablecoins generally means lending them out, providing liquidity, or staking them through a platform or protocol, in exchange for a return, but every yield source carries some risk, despite the underlying asset being designed to hold a steady value, a nuance we cover in our guide to how stablecoins actually work. The Bank for International Settlements has examined where these returns actually come from, and what tends to break.

Yield sources

Common sources include lending stablecoins to borrowers through a platform, providing liquidity to a trading pool, and participating in DeFi protocols that pay rewards for depositing stablecoins. Each source carries a different risk profile behind the advertised return.

The question that cuts through all of it is simple and rarely asked: who is paying you, and why? Every legitimate yield has an answer. In lending, borrowers pay interest, and they borrow because they want leverage or liquidity without selling, so the rate rises and falls with demand for that. In liquidity provision, traders pay fees to swap against your capital. In token incentives, the protocol is printing its own token to attract deposits, which is marketing spend rather than revenue.

That third category deserves separating from the first two, because it looks identical on the screen and is not. Incentive yield is paid in a token whose price can fall faster than the yield accrues, and it exists to bootstrap usage. It ends when the budget does. Anyone who cannot tell you which of the three is paying them is not earning a yield; they are holding a position they do not understand.

And if there is no answer at all, the answer is the next depositor. Every collapsed yield platform in this industry advertised a return it could not source, and paid early users with later users' money until the flow reversed.

Risks

Risks include the platform or protocol itself failing or being exploited, the underlying stablecoin de-pegging, and smart contract bugs. Higher advertised yields typically signal higher underlying risk, not a free return. It is worth comparing with staking a volatile asset directly.

The risks stack rather than substitute, which is the part people miss. Depositing a stablecoin into a lending protocol means carrying the issuer risk of the stablecoin, plus the smart contract risk of the protocol, plus the risk that borrowers default and the collateral fails to cover it, plus the platform or custodian risk if a company sits in the middle. Four independent ways to lose money, for a return in the low single digits.

The centralized version adds a specific failure mode worth naming. When you deposit with a company offering yield, you have made an unsecured loan to that company, and what they do with it is often opaque. The 2022 failures were not exotic: firms took deposits, lent them to leveraged traders, and could not return them when the traders blew up. Depositors discovered they were creditors rather than savers, and recovered cents.

DeFi protocols remove the company and replace it with code, which is a genuine improvement in transparency and a different risk rather than no risk. The contract does exactly what it says, and if what it says contains a flaw, the funds leave in a single transaction and nobody can stop it.

APY vs. APR

APY includes the effect of compounding returns over a year; APR does not. A yield advertised as APY will look higher than the same underlying rate expressed as APR, so always compare like for like.

The number deserves more suspicion than it usually gets, for reasons beyond compounding. Advertised rates are typically variable and frequently promotional, calculated by annualizing whatever the rate happened to be in a recent window, which means a headline figure can be an extrapolation from a good week. Where the yield is paid in a protocol's own token, the quoted APY also assumes that token holds its price, which is precisely what tends not to happen when the incentives end.

The sanity check is comparative. Short-term Treasuries pay a known rate for essentially no risk. Any stablecoin yield meaningfully above that is being paid for taking on something, and the size of the gap is a decent proxy for how much. A few points above is a plausible risk premium. Double digits is a description of the risk, not the reward.

Safety checklist

Check how long the platform has operated, whether it's been independently audited, how the stated yield is actually generated, and what happens to your funds if the platform fails. The same mechanisms underpin much of decentralized finance.

Add three questions to that list, and be willing to walk away if any goes unanswered. Can you withdraw immediately, or is there a lockup or a queue that becomes a trap in exactly the moment you want out? Is the yield paid in the same asset you deposited, or in a token whose price is a separate bet? And how much of the total deposits are yours, since being a large share of a small pool means you are the exit liquidity.

The honest framing to leave with: there is no such thing as a safe yield on a stablecoin. There is a yield, and there is a risk you accepted to earn it, and the entire skill is being able to name that risk out loud before you deposit. If you cannot, the appropriate position size is zero.

The comparison that matters

Before any of this, there is a question worth asking that the whole category is designed to distract from: compared to what? A US Treasury bill or an insured savings account pays a competitive rate today, is protected by deposit insurance or the full faith of a government, and requires you to understand nothing. That is the benchmark, and any stablecoin strategy has to beat it on a risk-adjusted basis to be worth doing at all.

Against that benchmark, a few points of extra yield in exchange for smart contract risk, issuer risk, and no insurance is a thin trade for most people. It makes more sense if you are already holding stablecoins for another reason and want them working while they wait, or if you are somewhere without easy access to conventional dollar accounts, which is a genuinely large share of the world and the most defensible use case in the whole category.

What makes it a bad trade is size and duration. Yield strategies are best treated as something you do with a slice, briefly, with money you have already decided you could lose, rather than as a place to keep savings. Nearly everyone who was badly hurt in the 2022 failures had done the opposite: they moved their savings somewhere paying eight percent because it was advertised as safe, and discovered afterward what the eight percent had been paying for.