Overview The Federal Reserve raised the federal funds target range by 25 basis points to 3.75% to 4% on September 16, and that decision changed the arithmetic of holding dollar cash that earns nothingOverview The Federal Reserve raised the federal funds target range by 25 basis points to 3.75% to 4% on September 16, and that decision changed the arithmetic of holding dollar cash that earns nothing
Best Way to Stake USDT: How to Earn Up to 11% APR on MEXC Earn Plus
Overview
The Federal Reserve raised the federal funds target range by 25 basis points to 3.75% to 4% on September 16, and that decision changed the arithmetic of holding dollar cash that earns nothing. It was the central bank's first hike since July 2023, and it pushed short-term dollar rates back toward 4%. Traders who park USDT in exchange accounts between positions can now put a clearer number on what that idle balance costs them, particularly because the interest earned on stablecoin reserves stays with the issuer rather than the holder.
That backdrop explains the attention on Earn Plus, a flexible stablecoin savings product that MEXC rolled out in late August. According to MEXC's launch announcement, Earn Plus has no lock-up period and no maximum subscription, calculates interest hourly and settles it daily, and applies higher rates to larger balances, with the top rate currently at 11%. The headline figure is the ceiling of a tiered schedule rather than a flat rate. It has to be read against the rate cycle, the product's funding model and an unresolved policy fight over who may pay yield on dollar tokens.
Key Takeaways
Idle cash has been repriced. The Fed now pays 3.90% on reserve balances, while Tether booked roughly $1.5 billion of second-quarter net operating profit, led by Treasury and repo income. USDT left unallocated forgoes a spread that is real and measurable.
11% is a ceiling, not a flat rate. Earn Plus applies different rates to different portions of a balance, and larger balances place more money in higher tiers. The blended effective rate is the figure that matters.
The liquidity design targets active traders. Interest starts accruing the hour after subscription and is paid the next day, redemptions settle within seconds, and the balance can be used directly for spot and futures trading.
Policy lines are still moving. U.S. law restricts permitted issuers from paying yield to holders, but platform-level rewards remain contested after the Senate's September 15 procedural vote on the Clarity Act failed.
Two dates stand out. The Earn Plus booster campaign ends on October 24 (UTC), and the next Federal Open Market Committee meeting is scheduled for October 27 to 28.
Rate Hike Puts a Price on Idle Stablecoins
The Fed Restarts Tightening
The Fed's implementation note for the September 16 decision confirms the new 3.75% to 4% target range and a rise in the interest rate paid on reserve balances to 3.90%, effective September 17. CNBC reported that the vote was unanimous at 12-0, that it marked the first increase since July 2023, and that 16 of the 18 officials in the updated dot plot expect at least one more hike this year. At his post-meeting press conference, Chair Kevin Warsh said inflation has run above target for more than five years and that the committee's predominant focus is price stability.
For anyone holding dollar liquidity, the message is straightforward. Short-term risk-free rates look set to stay around 4% for the coming months and could move higher. Money market funds, Treasury bills and the cash-management products tied to them will reprice accordingly, and so will the implicit cost of holding any dollar-denominated asset that pays nothing. In crypto, USDT is by far the largest such asset.
Reserve Income Stays With the Issuer
Tether's second-quarter 2026 attestation shows about $184.6 billion of USDT issued as of June 30, up roughly $446 million from the end of March, with market share above 60%. Total assets stood at about $187.75 billion against liabilities of about $183.64 billion, and net operating profit reached about $1.50 billion, driven by the company's U.S. Treasury portfolio and repo activity. DefiLlama's stablecoin dashboard puts the overall stablecoin market above $300 billion, with USDT at roughly $183 billion and USDC, issued by Circle, at about $74 billion.
The economics are simple. The issuer earns interest on the reserves and the holder receives nothing. USDT is not designed to pay interest, and the GENIUS Act, which became Public Law 119-27 on July 18, 2025, restricts permitted U.S. payment stablecoin issuers from paying yield to holders directly. In a tightening cycle, a USDT balance that is not deliberately deployed absorbs inflation and opportunity cost while the carry accrues on the issuer's balance sheet.
Inside the Earn Plus Structure
Tiered Rates That Reward Larger Balances
The Earn Plus FAQ describes the product as the platform's first interest-bearing offering dedicated to stablecoin management, built on a tiered schedule. A staked balance is split into bands, each band earns its own real-time APR, and the results are added together. The more a user stakes, the larger the share of the balance that falls into higher tiers. Launch materials put the current top rate at 11%, but the published documents do not list the threshold for each tier, so the live product page is the reference point.
That design inverts a pattern common in exchange savings products. During a limited-time upgrade in February, MEXC's own announcement showed the highest 20% USDT flexible rate applying only to balances between 0 and 300 USDT, with 10% on the band from 300 to 100,000 USDT. Front-loaded tiers of that kind work mainly as customer-acquisition tools and do little for larger balances. Earn Plus removes the subscription cap and lets the marginal rate rise with the balance, which positions it for the sizable idle stablecoin holdings that sit in trader and institutional accounts.
Hourly Accrual and Next-Day Payouts
Interest is calculated by the hour. If a user subscribes during hour H, accrual begins at H+1, and the day's accumulated interest is paid to the spot account the following day (T+1), in the same stablecoin that was staked. Partial redemptions run on the same clock: a user holding 100 USDT who redeems 50 USDT during hour H earns on 50 USDT from H+1, while interest already accrued is unaffected.
What matters most to traders is the cost of moving money. There is no minimum holding period and no early redemption fee. Redeemed funds return to the spot account within seconds in the original token, without conversion fees or spread, and the platform lets users select their flexible savings account as the source of available funds on the spot or futures trading page. In practice, Earn Plus behaves more like an interest-bearing trading cash account than a savings product that has to be timed.
Where the Yield Comes From
According to the FAQ, MEXC allocates staked assets to corresponding Earn Plus products in stablecoins such as USDC and USDGO, with the underlying exposure in low-risk, high-liquidity instruments such as short-term government bonds and money market instruments. USDGO is issued by Anchorage Digital's federally chartered bank and branded and distributed by OSL. Anchorage Digital's announcement states that the token is backed one-to-one by high-quality liquid assets including U.S. Treasuries.
MEXC also states that Earn Plus carries 100% principal protection, meaning users can redeem the full amount of stablecoin they staked in the original token. That commitment covers the number of tokens returned and is a platform-level product term, which is legally distinct from bank deposit insurance. The APR itself floats with market rates. At 11%, the top tier also sits well above the Fed's 3.90% reserve rate, which suggests the upper tiers cannot be explained by Treasury carry alone. The platform's pricing strategy and its competition for large balances are part of the rate, which is one more reason to track the live figure rather than anchor on the launch number.
The Booster Campaign and Its Limits
A press release distributed via Chainwire sets out a campaign running from August 27 to October 24, 2026 (UTC). New users who complete a qualifying deposit task can receive an APR booster of up to 800%, new and existing users who refer friends can qualify for boosters of up to 800%, and users who reach specified net deposit thresholds can receive up to 500%, with specific terms displayed on the platform. Under the rules published in the MEXC Rewards Hub, boosters apply only to the product named on the voucher, and boosted interest is calculated on the lower of the principal and the maximum boostable principal. Anything above that cap earns no extra interest. Triple-digit boosters are best read as short-dated subsidies on limited principal, not as an annual return on a full balance.
Why Stablecoin Yield Remains a Policy Flashpoint
What the GENIUS Act Settled
CoinDesk reported on September 14 that federal law already restricts stablecoin issuers from paying yield but leaves room for rewards offered through exchanges and other intermediaries, and that banking groups are pressing Congress to draw a sharper line. Banks argue that yield-like returns on dollar tokens could pull deposits out of the lending system, while crypto executives counter that the threat is overstated. The same report said banking groups asked lawmakers to strike language allowing rewards to depend on how many stablecoins a customer holds and for how long, on the grounds that such programs function like savings accounts.
What the Failed Clarity Act Vote Left Open
According to CNBC, the Senate voted on September 15 to block the Clarity Act from advancing, stalling the industry's push for a comprehensive market structure framework. Republican leaders had released a revised text days earlier with new ethics restrictions aimed at Democratic concerns about public officials profiting from crypto ventures, but the changes did not resolve the remaining opposition.
The immediate consequence is that rules on platform-level stablecoin rewards in the United States will not be written into statute in the near term. For a global investor base, the practical reading is that the availability, terms and eligibility of stablecoin yield products differ by jurisdiction, and some products may be restricted in certain countries or regions. Platform terms and local regulation remain the governing reference, and policy uncertainty belongs in any judgment about how durable a given rate is likely to be.
What It Means for USDT Holders
Compare Blended Rates, Not Headline Rates
For a tiered product, the figure that determines income is the blended effective rate: the sum of each band's balance multiplied by its rate, divided by the total balance. MEXC Learn's explainer on Earn Plus interest draws the line between an APR and realized income with a simple case. At 5% APR, 10,000 USDT implies about 500 USDT of simple annual interest, but any change in the rate during the year changes what actually arrives.
Consider a hypothetical account holding 100,000 USDT with a blended effective rate of 8% that stays constant for a full year. It would earn roughly 8,000 USDT in simple interest, while the same balance left in a spot account would earn nothing. As a reference point, the same sum earning the Fed's 3.90% reserve rate would generate about 3,900 USDT. These figures illustrate the method only and do not represent the actual rate on any Earn Plus tier.
Liquidity Decides the Right Tool
Every option for idle USDT is a trade-off between yield, liquidity and risk. A spot account offers maximum liquidity at a zero return. Flexible products exchange a floating rate for anytime access, while fixed-term products typically trade a lock-up for a more certain return. On-chain lending protocols such as Aave pay supply rates that float with utilization and add smart contract and operational risk. Tokenized Treasury and money market products often come with stricter investor eligibility and geographic access requirements.
For high-frequency traders and futures users who may need to top up margin at short notice, redeploying funds within seconds matters more than an extra point or two of yield, and Earn Plus is built with that user in mind. For balances with a longer horizon and no near-term trading plan, pairing flexible and fixed products while keeping a liquidity buffer can lift the overall return without giving up the ability to act quickly.
Risks, Scenarios and What to Watch
Risks That Do Not Show Up in the APR
The most direct exposure is to the platform itself. Holding funds in a centralized exchange savings product means taking on the operator's operational, custody and credit risk, and a principal protection commitment is ultimately only as strong as the platform's ability and willingness to honor it. Rate risk follows closely: the APR floats, so a decline in market rates or a change in the platform's pricing flows straight into future interest. The underlying assets add another layer, since the issuers, reserve quality and peg stability of stablecoins such as USDC and USDGO indirectly shape the product's margin of safety. Regulatory and access risk completes the picture, because rule changes can alter who may use a product and on what terms.
Three Rate Scenarios
In a hawkish continuation, the Fed delivers the additional hike most officials pencil in for this year, short-term dollar yields rise further, and returns on cash-like underlying assets improve, supporting the rates that stablecoin savings products can pay. Tighter policy could also weigh on crypto risk assets, leaving more capital parked in stablecoins and raising the value of a yield-bearing place to hold it.
In a pause, inflation stabilizes and policy holds near current levels, keeping base yields around 4%. Platform rates would then be shaped mainly by competition and by each operator's appetite for deposits.
In a pivot, the oil-driven inflation impulse fades and growth softens enough for the Fed to reverse course. Base yields would compress, and flexible savings rates across the industry, Earn Plus included, would likely be adjusted lower. A tail scenario of stablecoin stress, however remote, would quickly shift the priority from yield to redemption speed and the quality of underlying assets.
Dates and Data Points Ahead
The booster campaign ends on October 24 (UTC), and the way the Earn Plus rate schedule behaves after that date will say a good deal about the product's steady-state pricing. The FOMC meets next on October 27 to 28, according to the Fed's meeting calendar. Tether's third-quarter attestation, covering the period to September 30, will update the picture on USDT supply and reserve income, while DefiLlama's supply data offers a running read on whether stablecoin demand is expanding or contracting. In Washington, the treatment of platform rewards now waits for the next legislative attempt.
Exclusive View from James Mitchell
For James Mitchell, the significance of Earn Plus lies less in the 11% figure than in what the Fed's move has done to the price of doing nothing. With reserve balances earning 3.90% and most FOMC participants projecting further tightening, a zero-yield USDT balance is no longer a neutral position. Measured against the risk-free benchmark, it is a negative-carry position of close to four percentage points a year, and Tether's roughly $1.5 billion quarterly operating profit shows exactly where that carry ends up. From a risk management standpoint, idle stablecoins should be treated as an allocation decision rather than as whatever is left over after trading.
Where the market may misread the offer is in the headline numbers. "Up to 11%" describes the top of a tiered schedule, and the rate any given account earns depends on how its balance spreads across tiers. Booster figures of 500% to 800% are capped by principal and duration and say little about full-year income. The more consequential misreading concerns principal protection. It is a platform commitment covering redemption in the original token, which makes the underlying exposure a credit exposure to the platform. Position sizing should reflect that, in the same way a treasury desk caps exposure to any single counterparty.
The variable most worth monitoring is the spread between the blended rate an account actually earns and a risk-free anchor such as the Fed's reserve rate, tracked as a time series rather than a snapshot. A spread that holds after the booster campaign ends on October 24 and through the October FOMC would point to durable pricing, while a sharp compression would suggest the upper tiers were partly promotional. Alongside that, the stablecoin supply trend on DefiLlama works as a liquidity gauge for the broader market, and Tether's next attestation will show whether reserve income is still expanding at current rate levels. For active traders, the buffer held in instantly tradable form should be sized to realistic margin needs derived from the volatility of open positions, not to a round number.
The cross-asset lesson echoes an older chapter of traditional finance. When U.S. bank deposit rates were capped in the 1970s, money market funds grew rapidly by offering savers market rates, and the contest over who earns the return on cash reshaped the industry. The stablecoin yield debate follows similar logic: issuers are barred from paying, banks want the intermediary channel closed, and exchanges are competing to hand part of the carry back to users. However the policy question is settled, dollar liquidity on crypto platforms is increasingly being priced like cash in traditional markets, and the platforms able to do that transparently and sustainably are the ones most likely to attract idle balances.
FAQ
Does USDT earn interest if it sits in a spot account?
No. USDT does not pay interest to holders. Tether invests reserves in assets such as U.S. Treasuries and repo and keeps that income, which produced about $1.5 billion of net operating profit in the second quarter. With the fed funds target now at 3.75% to 4%, a USDT balance left in a spot account forgoes a measurable amount of interest unless it is deliberately allocated to a yield-bearing product.
Is the 11% APR on MEXC Earn Plus a fixed rate?
No. 11% is the top tier disclosed at launch. Earn Plus applies different rates to different portions of a balance, and larger balances place a greater share in higher tiers. Rates are displayed in real time on the product page and can be adjusted as market rates change, so the useful figure is the blended effective rate on a specific balance rather than the ceiling.
Where does Earn Plus interest come from?
MEXC says staked USDT is allocated to Earn Plus products in stablecoins such as USDC and USDGO, with the underlying exposure in low-risk, high-liquidity instruments including short-term government bonds and money market instruments. Because the top tier sits well above current short-term dollar rates, the platform's own pricing strategy also shapes the rate users actually receive.
Can I still trade with USDT held in Earn Plus?
Yes. There is no lock-up, no minimum holding period and no early redemption fee, and redemptions return to the spot account within seconds. According to MEXC's guidance, users can select the flexible savings account as the source of available funds on the spot or futures trading page and trade directly from that balance without redeeming first.
Does redeeming early cancel interest already earned?
No. Interest accrues hourly, so after a partial or full redemption the principal used to calculate interest is adjusted from the next hour, and interest already accrued is paid as normal. A user holding 100 USDT who redeems 50 USDT in a given hour earns on 50 USDT from the following hour. Accumulated interest is paid to the spot account the next day in the staked stablecoin.
What does an APR booster of up to 800% actually mean?
The boosters come from a campaign running from August 27 to October 24 (UTC) for new users completing deposit tasks, users who refer friends and users who reach net deposit thresholds. Boosted interest applies only up to a maximum boostable principal and for a limited period, with no extra interest above the cap. It is a short-term subsidy on limited principal, not a full-year return on an entire balance.
How would further Fed hikes affect Earn Plus returns?
Earn Plus rates adjust with market conditions, including interest rates. The Fed's September projections showed 16 of 18 officials expecting at least one more hike this year. Higher short-term rates would lift yields on the cash-like assets underneath the product and support its pricing, while a pivot to rate cuts could bring rates down. The next FOMC meeting is scheduled for October 27 to 28.
Disclaimer
The information above is provided for general market information and analysis only and does not constitute investment advice, financial advice, legal advice, tax advice or a recommendation to trade. Prices of crypto assets, equities and other related financial assets can fluctuate sharply, and past performance, technical indicators and on-chain data do not guarantee future results. The APRs, campaign terms, interest rates and market data referenced may change at any time, and the latest official disclosures from the relevant platforms and institutions should be treated as authoritative. Readers should conduct their own research and make decisions based on their own financial circumstances, investment objectives and risk tolerance, consulting a qualified professional where appropriate. The MEXC Crypto Pulse team accepts no liability for any direct or indirect loss arising from the use of this information.
About the Author
James Mitchell specializes in technical analysis, market trends, and trading strategies for both Bitcoin and altcoins. Based in London, he has over 10 years of experience in financial markets. Before joining MEXC Learn, James worked as a senior analyst at a leading European investment firm, where he developed expertise in risk management and quantitative trading. His transition to cryptocurrency markets began in 2017, and he has since become recognized for his data-driven approach. He holds a Master's degree in Financial Economics from the London School of Economics. His analytical approach combines traditional technical analysis with on-chain metrics to provide readers with actionable insights.
Areas of Expertise: Technical Analysis, Market Trends & Cycles, Trading Strategies, Bitcoin & Altcoin Analysis, Risk Management.
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The articles shared on this page are sourced from public platforms and are provided for reference only. They do not represent the position or views of MEXC. All rights belong to James Mitchell. If you believe any content infringes upon the rights of a third party, please contact [email protected] for prompt removal. MEXC does not guarantee the accuracy, completeness, or timeliness of any content and is not responsible for any actions taken based on the information provided. The content does not constitute financial, legal, or other professional advice, nor should it be interpreted as a recommendation or endorsement by MEXC. For expert insights and in-depth analysis, visit MEXC Learn.
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