USDT APR vs APY: What’s the Difference for Crypto Earn?
APR and APY are often used as if they mean the same thing. They do not. The difference is compounding.
For small rates and short holding periods, the gap can be minor. For longer periods, higher rates or frequent reinvestment, it becomes more noticeable.
Summary
APR expresses a simple annualized rate without assuming compounding.
APY expresses the annualized result after compounding under a stated frequency.
At 5% APR:
simple annual result on 10,000 USDT = 500 USDT;
if 5% APR were compounded daily at a constant rate, the APY would be slightly above 5%.
The crucial question is not what label a page uses. It is whether distributed interest is actually reinvested into the earning principal.
APR: The Simple Annualized Rate
APR answers: “What would this rate imply over a year before compounding?”
For 20,000 USDT at 4% APR:
20,000 × 4% = 800 USDT annualized
APR is easy to compare across products, but it does not tell you whether interest is reinvested.
APY: The Compounded Annual Result
APY answers: “What would the annual return be if interest compounds at the stated frequency?”
The general formula is:
APY = (1 + APR / n)^n − 1
where n is the number of compounding periods per year.
At 5% APR with daily compounding, the APY is approximately 5.13%.
On 10,000 USDT, that difference is roughly 13 USDT over a full year if the rate remains unchanged and daily compounding actually occurs.
Daily Payout Does Not Automatically Mean Daily Compounding
This is the most common misunderstanding.
A product can distribute interest every day without automatically putting that interest back into the earning balance.
If the daily reward lands in a Spot wallet and sits there, it is not compounding inside the earn product.
Compounding requires the reward to become part of the principal that earns future interest.
How to Check Whether a Crypto Earn Product Compounds
Look for one of these mechanisms:
interest automatically added to principal;
Auto-Earn or auto-subscribe enabled;
a receipt token whose balance grows with yield;
explicit daily/weekly compounding language in the product rules.
Do not infer compounding only from “paid daily.”
How MEXC Earn Plus Handles Interest
MEXC's current Earn Plus FAQ states that interest is calculated hourly and distributed daily. The Earn Service Agreement says distributions from Earn Plus products are added to the principal deposit amount and future distributions are based on the updated principal.
Users should rely on the current product interface and official rules for the exact reinvestment mechanics of the specific Earn Plus product they are using.
This is a stronger approach than assuming a generic APY from the words “daily distribution.”
APR vs APY Example at Different Rates
Assuming daily compounding and a constant rate:
| APR | Approx. APY |
| 2% | 2.02% |
| 4% | 4.08% |
| 5% | 5.13% |
| 8% | 8.33% |
| 10% | 10.52% |
The difference grows as the rate rises.
For a variable-rate product, however, the realized APY cannot be known in advance because future APR is unknown.
Which Number Should You Use When Comparing Products?
Use APR when you want a clean rate comparison and the products do not compound in the same way.
Use APY when:
compounding is automatic;
the compounding frequency is known;
you are comparing products with similar rate assumptions.
For variable stablecoin products, it is often better to track realized return after the fact rather than estimate a precise one-year APY from a rate that can change next week.
FAQ
What is the difference between APR and APY?
APR is a simple annualized rate. APY includes the effect of compounding.
Does daily interest payment mean daily APY compounding?
No. The interest must be reinvested into the earning principal for compounding to occur.
Is APY always higher than APR?
If the rate is positive and compounding occurs more than once a year, APY is normally higher than the equivalent APR.
Which is better for comparing USDT earn products?
APR is often the cleaner first comparison. Then check whether and how the product compounds.
Is MEXC Earn Plus APR fixed?
No. MEXC states that Earn Plus APR is variable.
热门加密动态
查看更多
闲置 USDT 怎么理财？用 MEXC 赚币 Plus 享最高 11% 年化收益（APR）
概述 美联储 9 月 16 日宣布加息 25 个基点，将联邦基金利率目标区间上调至 3.75% 至 4%。这是美联储 2023 年 7 月以来的首次加息，短端美元利率重新逼近 4%。停放在交易所账户里、不产生任何回报的 USDT，机会成本因此变得具体、可以计量。稳定币发行方依靠储备资产赚取的利息并不分配给持有人，把 USDT 闲置在账户里，本身就是一个有代价的选择。 MEXC 于 8 月下旬推出的
地缘危机惊魂24小时：比特币震荡企稳，链上巨头Hyperliquid正悄悄瓜分CEX流量
概述 本周末，美伊谈判再度陷入僵局，地缘政治风险骤然升温，比特币（BTC）与以太坊（ETH）随之走低，加密市场上演了一场"黑天鹅惊魂"。然而在市场随宏观情绪逐步企稳的同时，一个更值得关注的结构性趋势正在成形：以 Hyperliquid 为代表的链上衍生品生态，凭借真实可验证的链上收益和持续攀升的交易量，正在悄然分流传统中心化交易所（CEX）的用户与资金。本文将从宏观压力触发的市场反应切入，深度解析
USAT高息理财来袭：MEXC推出300% APR活期存币计划，随存随取轻松获利
MEXC交易所独家推出USAT高息活期理财，最高年化收益率达300%，支持随存随取。本文深度解析USAT理财机制、收益计算方式及参与策略，助您把握DeFi理财新机遇。 Key Takeaways MEXC独家推出USAT活期理财产品，最高APR达300%，行业领先 支持随存随取灵活机制，无锁仓期限制，资金流动性极佳 USAT作为Tether推出的美国监管合规稳定币，安全性有保障 MEXC提供超低交
热门新闻
查看更多
Coldcard Mk3 警告紧随 3800 万美元 Bitcoin 被扫荡事件，但原因仍未确认
比特币硬件钱包制造商Coinkite已警告用户，Coldcard设备存在种子生成问题，影响从4.0.1版本起的所有Mk3固件版本。该警告是在安全研究人员调查一起涉及594.48 BTC（约合3,800万美元）的协同转移事件时发出的。然而，目前尚无公开的技术证据证实Coldcard的问题导致了这些转账。
相关文章
查看更多
什么是 MEXC 链上赚币？一文读懂链上质押赚取收益的方式
1. 什么是 MEXC 链上赚币MEXC 链上赚币让您直接通过现货账户轻松参与链上协议，无需进行复杂的链上设置或操作，即可轻松赚取链上收益。2. MEXC 链上赚币的运作原理MEXC 链上赚币基于权益证明（PoS）和 DeFi 协议质押的核心机制运作。当您在 MEXC 进行质押时，实际上是将代币委托给了验证节点或 DeFi 协议。在 PoS 网络中，验证者利用这些质押额度来验证交易并创建新区块；在
MEXC vs Hotcoin：一律 0.20% 的现货手续费，会从每月比特币定投中吃掉多少？
现货买币的成本，MEXC 比 Hotcoin 更低：MEXC 向挂单方（Maker）收取 0%、向吃单方（Taker）收取 0.05%，Hotcoin 则一律收取 0.20%。以每月 1,500 USDT 买入 BTC、持续一年并在最后卖出一次计算，MEXC 的总手续费为 18 USDT（改用限价单买入则为 9 USDT），Hotcoin 则为 72 USDT。 不过，CoinGecko 显示 H
MEXC vs Biconomy.com 交易所对比：现货手续费、资产储备与监管记录有何区别？
MEXC 的现货交易成本较低：挂单（Maker）手续费 0%、吃单（Taker）手续费 0.05%，而独立追踪网站列出的 Biconomy.com 交易所费率一律为 0.2%。以市价一买一卖 6,000 USDT 为例，在 MEXC 的手续费为 6 USDT，在 Biconomy.com 则为 24 USDT。 Biconomy.com 在合约之外还列有期权，并接受 SEPA 与 SWIFT 充值
