What is APY in Crypto?

Summary: APY is the annual return on an amount you deposit or stake, including the effect of compounding. In crypto the number is often far larger than a bank would offer, and the gap is a risk premium rather than a better deal. A headline APY says nothing about what token you get paid in, how long you are locked up, or whether the rate survives the week.

• APY includes compounding; APR does not. The same yield quoted both ways gives two different numbers.
• A very high crypto APY is usually paid in a token whose price can fall faster than the yield accrues.
• Lock-ups, unbonding periods and gas costs all reduce what you actually keep.
• Advertised rates are typically variable and often front-loaded to attract deposits.

Search for crypto yield and you will find rates from 4 percent to four figures, sitting next to each other with no explanation of why they differ. The number itself is not the useful part. What matters is what has to be true for that number to hold, and who is taking the risk if it does not.

APY is a real, defined measure, not a marketing invention. It is worth understanding properly, because the same definition that makes bank rates comparable is what makes crypto rates misleading when it is applied loosely.

APY vs APR: The Difference That Matters

APR is the simple annual rate. APY is the annual rate once you account for interest earning interest, so the more often a product compounds, the further APY rises above APR. In US consumer banking, the calculation is not optional: the formula is fixed in Appendix A of Regulation DD, which is why a 4 percent APY at one bank means the same thing as 4 percent at another.

Crypto platforms are not bound by that rule. Two protocols can quote the same underlying return as 60 percent APR or 82 percent APY depending on assumed compounding frequency, and neither is lying. When you compare offers, check which one you are being shown, and whether the compounding it assumes is something you have to do manually.

Why Crypto APY Numbers Get So Large

A bank pays you a share of what it earns lending your deposit, in the same currency you deposited. A crypto protocol paying 200 percent is usually doing something structurally different: issuing its own token as a reward. That is closer to a company paying staff in newly printed shares than to interest. The yield is real in token terms and can be worthless in money terms if the token falls.

The other common source is genuine but narrower. Staking rewards on a proof-of-stake network come from protocol issuance and transaction fees, and land in the single digits to low teens for large networks - our guide to staking in crypto covers how those rewards and lock-ups work. Lending markets in DeFi pay whatever borrowers are willing to pay, which spikes when leverage demand is high and collapses when it is not.

The Four Things a Headline APY Does Not Tell You

• What token you are paid in. A yield paid in a governance token is a bet on that token, not a savings rate.
• How long your funds are locked. Unbonding periods of days or weeks mean you cannot exit a falling market.
• What it costs to claim. On a busy chain, harvesting rewards can eat a small position's entire yield - see what is a gas fee.
• Whether the rate is promotional. Launch incentives are designed to fall as deposits arrive, and the quoted figure is often the first week's.

None of that appears in the number. A 12 percent yield paid in a major asset with same-day exit is a better proposition than a 40 percent yield paid in an illiquid token with a 21-day unbonding queue, and the headline figures say the opposite.

Chasing the Highest APY Is a Losing Strategy

The highest advertised rate in any market is almost always attached to the highest risk in that market, and sometimes to no real product at all. Fake yield platforms are one of the most common crypto frauds precisely because a big APY is easy to advertise and impossible to verify from outside - our guide to spotting crypto scams covers what the pattern looks like.

The sober version: treat any yield above what large staking networks pay as compensation for a risk you should be able to name. If you cannot name it, you are the risk.

Tax on Yield You Never Sold

Rewards are usually taxable when you receive them, at their value on that date, even if you never convert them and even if the token later falls to nothing. That is how people end up owing tax on yield that no longer exists. Our overview of what counts as a taxable event covers the general shape, though the treatment varies by country and this is background rather than advice for your situation.

What a Yield Number Is Actually Telling You

Read an APY as a price rather than a return: it is what someone is willing to pay you to take a risk off their hands. Low single digits means the risk is mostly the network itself. Triple digits means the risk is the token, the protocol, or the people running it. Neither is wrong to accept, as long as you know which one you are being paid for. And if the plan for those rewards is to spend them rather than compound them, you can turn them into gift cards without a bank in the middle.