How to Buy Tether(USDT)

If you want to buy Tether(USDT), you may need to prepare the following things:

•  Crypto exchange account or crypto wallet account. Except for the crypto exchange account, it is recommended to create a crypto wallet(such as Metamask) account. (What Is a Crypto wallet?)
•  Personal identification document (if you are using the Know Your Customer (KYC) platform)
•  Secure internet connection
•  Valid payment methods, such as bank accounts, debit cards, and credit cards

To buy Tether(USDT) with cash, such as USD (US Dollar),  you will have to use a cryptocurrency exchange or financial service that supports funding via either your bank account or credit card. Different countries may have different supported platforms, for most of the countries, the mainstream platforms that support Tether(USDT) trading(OTC) with cash are centralized exchanges(CEX), such as Coinbase, Binance, Kucoin, etc. Since the operation procedures vary from different CEX, we can't provide you a step-by-step guide on how to buy in all the different centralized exchanges(CEX), but we can provide you with some general  procedures.

•  Step 1: Register an account on the centralized exchanges(CEX)'s official website or the app. (Check Exchange Ranking), if CEX supports (eg. Binance) one-step sign up with your social account, you can sign up with your social account directly.
•  Step 2: Verify your identity & secure your centralized exchanges(CEX)'s account.  You are typically required to have a government-issued identification document. For asset security, you'd better Enable Two-step Verification.
•  Step 3: Add a payment (funding) method to your centralized exchanges(CEX)'s. To add a payment method to your account, you can either click on the "Add payment method" box that appears at the exchange or clicks on your profile photo and settings the payment methods. 
•  Step 4: You can choose to buy Tether(USDT) with a Debit/Credit Card, Bank Deposit, and Third-party Payment. Generally, it varies from different CEX and different areas. For US residents, if you are using Coinbase, you can click on the "Trade" button next to the coin then fill out how much US Dollars you'd like to invest in and click the "Buy" button.

If you have other altcoins in your crypto wallet (such as Metamask) that would like to swap for stable coins, you can choose to swap by conneting to a DEX and swap. 
Each DEX may differ in its functions, however, the trading procedures are similar.

•  Step 1: Go to the decentralized exchange (DEX) page
•  Step 2: Transfer ETH, BNB, etc.(the corresponding mainnet cryptocurrency of the blockchain that DEX runs on) that purchased by fiat to your self-custody crypto wallet address. If you have the coins in your CEX wallet, find the "withdrew "option and paste the crypto wallet address, and transfer. 
•  Step 3: Connected your wallet to the decentralized exchange (DEX), in general, click "Connect Wallet" on the upper right side of the DEX and followed the instructions to connect.
•  Step 4: Find the "Swap" option on DEX, then choose the token you want to trade from the dropdown menu in the "From" section and Tether(USDT) in the "To" section, if you can't find Tether(USDT) in the list, you can input the contract address of Tether(USDT) and add. Next, type an amount for your "To" currency by clicking inside the input box. You can also type your "From" amount and have the "To" amount estimate automatically if you like.  
•  Step 5: Check the details, and click the "Swap" button. When you are ready, click the "Confirm Swap" button. Your wallet will ask you to confirm the action. 
•  Step 6: Done! You can see your transaction details on the block explorer.

Note: Since there are many fake tokens on the decentralized exchange (DEX), please beware of the scam token.