How stablecoin swaps work step by step

You send one stablecoin. You receive a different stablecoin. The exchange happens somewhere between your wallet and your wallet, and you never hold the intermediate asset. That is the core idea. The steps that connect sending to receiving are not complicated, but each one has a detail that can cost you the whole amount if you miss it.

This page walks through the entire process in the order you will experience it. Read it once before you open your wallet. Read it again if anything looks unfamiliar.

What actually happens

The swap is not a trade on an order book. You are not selling to another person. Instead, the site sends your coins to a large pool of liquidity - a smart contract that holds many different stablecoins - and then sends the equivalent value back to you in the coin you chose. The pool does the conversion automatically. The site never holds your funds in a personal account. The contract does the work.

This means that when you send, you are trusting the contract to return the right amount. The contract is public. Its code is published and verified. Anyone can inspect what it will do. The site cannot override it.

Step one: get ready

Before you start, you need a wallet that holds the stablecoin you want to swap from. You also need a small amount of the network's native token for transaction fees. If you are swapping on the Ethereum network, you need ETH for gas. If you are swapping on BNB Chain, you need BNB. If you are swapping on Tron, you need TRX. The fee is usually between a few cents and a few dollars, depending on network congestion.

What do I need to have ready before I try swapping stablecoins? You need the wallet installed, the funds inside it, and enough native token to pay the fee. You also need the receiving wallet address - the place where the swapped coins will arrive. That address must be on the same network as the coin you are receiving. A USDT address on Ethereum cannot receive USDT on Tron. If you send to the wrong network, the coins are lost.

Step two: get the deposit address

The site gives you a temporary address to send your coins to. This is not the pool's permanent address. It is a unique address generated for this single swap.

Where do I find the address to receive swapped coins? You do not receive at a site address. You send your coins to the site's deposit address, and the swapped coins come back to the wallet address you provide. The deposit address appears on the swap page after you enter the amount and the destination address. It is a long string of characters. Copy it exactly.

Step three: why the address changes

Why does the deposit address change each time? The site assigns a new address for every swap so the smart contract can identify exactly which transaction belongs to which user. If everybody sent to the same address, the contract would not know who should receive the return payment. The unique address acts as a routing number. It tells the contract "this incoming payment is for swap ID 4729, send the output to wallet X."

This also means you cannot reuse a deposit address. If you send to an old address, the contract may reject the payment or assign it to a swap that already finished. The coins could be stuck.

Step four: send the payment

Open your wallet. Paste the deposit address. Enter the exact amount of the stablecoin you are swapping. Do not add extra for fees. The contract expects the precise amount. If you send too little, the swap may fail. If you send too much, the extra may be lost.

Confirm the transaction. Wait for confirmations. The number of confirmations required depends on the network. Ethereum usually needs 12. BNB Chain needs 1. Tron needs 19. The site shows the progress.

Step five: confirm the swap went through

How do I know my swap actually went through? The site updates the swap status in real time. You will see "Pending", then "Confirming", then "Completed". You can also check the transaction on a block explorer. Paste the transaction ID from your wallet into the explorer. Look for the output transaction that sends the swapped coins to your address. That output is your proof.

Do not close the page until the status says "Completed". If you close the page before the swap finishes, you can still check the status using the swap ID the site gave you at the start. Save that ID somewhere.

Step six: what about memos

Some networks require a memo or a tag. This is an extra number that goes alongside the address. It tells the receiving system which account should get the funds. If you are swapping to a centralized exchange wallet, the exchange will give you a memo. If you are swapping to your own wallet, you almost never need one.

What is a memo and do I need one for my first swap? A memo is a destination label. You need one only if the receiving address belongs to an exchange or a custodial service. Your personal wallet does not use memos. If the site asks for a memo and you are sending to your own wallet, leave it blank. If the site asks for a memo and you are sending to an exchange, you must enter the exact memo the exchange provided. A wrong memo sends the coins to somebody else's account.

Step seven: common mistakes

Beginners make the same errors repeatedly. Knowing them in advance saves your funds.

What are the most common mistakes beginners make when swapping? Sending the wrong stablecoin is the most frequent. The deposit address is generated for a specific coin. If you send USDC to a USDT deposit address, the contract may accept it and convert it incorrectly, or it may reject it entirely. The second most common mistake is sending from the wrong network. The deposit address belongs to one network. If you send BEP-20 USDT to an ERC-20 USDT address, the transaction goes through but the contract never sees it. The coins are gone. The third mistake is sending too little native token for gas. The transaction fails, but your wallet still deducts the fee.

What is the smallest amount I should swap to test the process? Swap the minimum allowed by the network. On most networks, that is around five to ten dollars worth. A test swap at that size confirms that your wallet, the deposit address, the memo (if any), and the receiving address all work correctly. If the test fails, you lose very little. If the test succeeds, you can swap the full amount with confidence.

Step eight: when coins do not arrive

What should I do if my swapped coins never show up? First, check the swap status on the site using your swap ID. If the status says "Completed", the coins were sent. Check your wallet on the correct network. Many beginners look at the Ethereum wallet when the coins arrived on BNB Chain. If the status says "Failed", the contract did not accept your payment. The coins should return to your wallet automatically within a few hours. If they do not, contact support with the transaction ID and the swap ID.

If the status says "Pending" for more than an hour, the network may be congested. Wait. If the status disappears entirely, the swap may have expired. The site returns unprocessed payments after 24 hours.

Some things cannot be undone. If you sent to the wrong network, the coins are unrecoverable. If you sent the wrong coin, the contract may convert it and send you whatever it thinks is correct. If you entered the wrong receiving address, the swapped coins go to that address and the site cannot reverse the transaction. Check every field twice before you confirm.