What is Tether (USDT)? Complete Guide to the Top Stablecoin in Crypto
Key Takeaways
Tether (USDT) is a stablecoin pegged to the US dollar, maintaining a 1:1 value ratio to provide stability in the volatile crypto market. As the largest stablecoin with over 350 million users worldwide, Tether has surpassed Bitcoin in trading volume since 2019. USDT operates across multiple blockchains including Ethereum, Tron, and Solana, giving users flexibility based on fee preferences and speed requirements. Tether serves as the primary trading pair on most exchanges, allowing traders to quickly move between cryptocurrencies without converting to fiat. Despite controversies regarding reserve transparency and regulatory challenges, Tether continues to dominate the stablecoin market with approximately 70% market share. MEXC offers a seamless Tether trading experience with support for multiple USDT networks, competitive fees, and straightforward deposit processes.
Table of Contents
What is Tether (USDT)?
When Was the First Tether (USDT) Token Issued? History and Development of Tether
How Does Tether Work?
- Ethereum (as an ERC-20 token)
- Tron (as a TRC-20 token)
- Solana
- Avalanche
- Algorand
- Polygon
- And others
Types of Tether Tokens
- USD Tether (USDT): The original and most widely used Tether token, pegged to the US dollar.
- Euro Tether (EUR₮): A version of Tether pegged to the euro, providing stability in euro terms.
- Tether Gold (XAUT): A token backed by physical gold, with each token representing ownership of one troy fine ounce of physical gold.
- CNH₮: A stablecoin pegged to the offshore Chinese yuan.
- MXN₮: A stablecoin backed by the Mexican peso, launched in 2022 as part of Tether's expansion into Latin American markets.
Tether Dominance | Tether's Role in the Cryptocurrency Ecosystem
- Trading Pair: USDT is used as a trading pair on virtually all major cryptocurrency exchanges. Rather than creating trading pairs with fiat currencies (which involves complex regulatory requirements), many exchanges use USDT pairs, allowing traders to effectively trade against the dollar.
- Safe Haven: During periods of high volatility, cryptocurrency traders often convert their holdings to USDT as a way to preserve value without exiting the crypto ecosystem entirely. This allows traders to quickly re-enter the market when conditions improve.
- Bridge Between Traditional Finance and Crypto: Tether serves as a bridge between the traditional financial system and cryptocurrencies, making it easier for users to move value between these two worlds without direct bank transfers for each transaction.
- Liquidity Provider: As the most traded cryptocurrency by volume, Tether provides significant liquidity to the crypto market, facilitating smoother trading and price discovery.
- Medium of Exchange: In regions with unstable local currencies or limited banking access, Tether can function as a dollar-equivalent medium of exchange, enabling international transactions outside the traditional banking system.
Tether Wallets and Storage
- Hardware Wallets: Devices like Ledger and Trezor provide the highest level of security by storing your private keys offline. These are recommended for holding larger amounts of USDT for extended periods.
- Software Wallets: These include desktop and mobile applications that can be custodial (where the service manages your keys) or non-custodial (where you control your private keys). Popular options include Trust Wallet, MetaMask (for ERC-20 USDT), and Exodus.
- Exchange Wallets: Cryptocurrency exchanges like MEXC offer built-in wallets where you can store USDT. While convenient for trading, they involve trusting the exchange with custody of your funds.
- Web Wallets: Platforms like Tether.to (Tether's official wallet) and Omni Wallet allow you to access your USDT through a web browser.
How to Buy and Use Tether on MEXC
Web Platform Deposit Process:
- Login to MEXC: Visit the official MEXC website (www.mexc.com) and click on Wallets and then Deposit in the navigation menu.
- Select Tether and Network: On the deposit page, select "USDT" as your cryptocurrency. Then choose the appropriate network for your deposit (such as ERC-20, TRC-20, or SOL). It's crucial to ensure that the network you select matches the network from which you're sending the funds.
- Generate Address: If you haven't generated a deposit address before, click Generate Address to create a new address for the selected network.
- Complete the Deposit: Copy the provided address or scan the QR code. Use this address on the platform you're sending from to initiate the withdrawal to your MEXC account.
- Wait for Confirmation: After initiating the deposit, your USDT will require blockchain confirmations. Once confirmed, the funds will appear in your Spot account on MEXC.
Mobile App Deposit Process:
- Open the MEXC App: Launch the app and navigate to Wallets → Spot → Deposit.
- Select USDT: Search for and select "USDT" from the list of cryptocurrencies.
- Choose Network: Select your preferred network (e.g., SOL, TRC-20, ERC-20). The app will display the deposit address and QR code.
- Complete Transfer: Copy the address or use the QR code to initiate the transfer from your sending platform.
- Check Status: View your deposit history by clicking on the Spot History button in the upper right corner of the deposit interface.
Important Considerations:
- Network Selection: Always ensure the network you choose on MEXC matches the network you're sending from. Mismatched networks can result in lost funds.
- Minimum Deposit: Note that some cryptocurrencies have minimum deposit requirements. Deposits below these minimums cannot be credited or returned.
- Confirmation Time: The time required for your deposit to confirm depends on blockchain network traffic and congestion.
Tether Controversies and Challenges
- Reserve Questions: The most persistent controversy surrounding Tether concerns its reserves. The company has long claimed that each USDT is backed 1:1 by US dollars or equivalent assets. However, Tether has been criticized for its lack of regular, comprehensive audits to verify these claims. In 2021, Tether revealed that only 2.9% of its reserves were held in cash, with the majority in commercial paper and other assets.
- Legal Issues: In 2019, the New York Attorney General filed a lawsuit against iFinex (Tether's parent company) alleging that the company had used Tether reserves to cover up $850 million in losses. In February 2021, Tether and Bitfinex settled this case, agreeing to pay $18.5 million in penalties without admitting wrongdoing.
- Market Manipulation Allegations: Academic research has suggested that Tether issuance may have been used to manipulate Bitcoin prices, particularly during the 2017 bull market. Tether has consistently denied these allegations.
- Regulatory Scrutiny: As one of the largest stablecoins, Tether has faced increasing regulatory attention. In October 2021, the U.S. Commodity Futures Trading Commission (CFTC) fined Tether $41 million for making misleading statements about its reserves.
Is Tether a Good Investment? Benefits and Limitations of Tether
Benefits of Tether:
- Price Stability: The primary advantage of Tether is its price stability relative to other cryptocurrencies, making it useful as a store of value and medium of exchange.
- Trading Utility: USDT allows traders to quickly move between volatile cryptocurrencies and a stable asset without converting back to fiat currency, saving time and potentially reducing fees.
- Global Accessibility: Unlike traditional banking, Tether can be accessed and transferred globally without geographic restrictions, often with lower fees than international wire transfers.
- Blockchain Advantages: While maintaining a stable value, Tether still benefits from blockchain technology features like transparency, programmability, and resistance to censorship.
- Transaction Speed: Compared to traditional bank transfers, Tether transactions can be much faster, especially when using networks like Tron or Solana.
Limitations and Risks:
- Centralization: Unlike Bitcoin or Ethereum, Tether is centralized, with Tether Limited acting as the sole issuer and redeemer of tokens.
- Counterparty Risk: Users must trust Tether Limited to maintain adequate reserves and honor redemptions, introducing counterparty risk not present in truly decentralized cryptocurrencies.
- Regulatory Uncertainty: As governments develop regulations for stablecoins, Tether may face new compliance requirements or restrictions that could impact its operation.
- Competition: Other stablecoins like USD Coin (USDC) and Binance USD (BUSD) compete with Tether, often with more transparent reserve attestations or different regulatory approaches.
- Network Fees: Depending on the blockchain used, Tether transactions may incur varying network fees, particularly on the Ethereum network during periods of congestion.
Future of Tether
- Expanding Ecosystem: Tether continues to expand beyond its original role as a USD-pegged stablecoin. In 2024, the company restructured into four divisions focusing on artificial intelligence, bitcoin mining, education, and stablecoins, indicating a broadening strategic vision.
- Investments and Acquisitions: Tether has been actively investing its profits in various sectors. In 2024, it invested $200 million in Blackrock Neutro, a brain-chip company, and acquired stakes in bitcoin mining operations, including a $100 million investment in Bitdeer. The company also made a significant $775 million investment in Rumble, a video hosting platform.
- Regulatory Adaptation: As regulatory frameworks for stablecoins continue to develop globally, Tether will need to adapt its operations to comply with new requirements while maintaining its core functionality.
- Technological Improvements: Tether may continue to expand to additional blockchains and Layer-2 solutions to improve scalability, reduce transaction costs, and enhance user experience.
- Reserve Transparency: In response to ongoing scrutiny, Tether may implement more robust transparency and audit procedures to build greater trust in its reserve backing.
- Market Competition: The stablecoin market is becoming increasingly competitive, with USDC, BUSD, and new entrants potentially challenging Tether's dominant position. How Tether responds to this competition will be crucial for its future market share.
Conclusion

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