What Are Memo and Destination Tag, and When Do You Need Them?

Why does a transfer need a tag?

A tag is needed when one blockchain address receives payments from many customers at once. The address shows where the coins arrived, and the tag shows who they belong to.

This is how exchanges, custodial wallets and payment services work on networks with a shared receiving address. Instead of issuing a separate address to every user, the recipient keeps one and tells customers apart by an additional field.

Think of the tag as an apartment number: there is one building (the address) and many residents. Without the number, the letter reaches the building, but the mail carrier has no idea who should get it.

Which networks use memo and destination tag?

Not every network has a tag. It usually appears where recipients like to use a shared address. The names differ, but the idea is the same.

• XRP. The field is called destination tag and holds a number.
• TON. It uses a comment, also called a memo. It can be text or a number.
• Stellar and Cosmos. These also have a memo field.

Bitcoin, Ethereum and Tron have no tag: each recipient normally has their own address, and matching is done by the address alone. If you are sending USDT, look at the network rather than the coin: see the article on USDT networks for details.

Wallets label the field in different ways: “Memo,” “Tag,” “Destination tag,” “Comment,” “Note.” If you see any of these next to the address, that is the field in question.

What happens if you don't include the tag?

The coins will reach the recipient's address, but the system will not be able to match them to your order automatically. The blockchain has done its part; what happens next depends on who sorts out the payment and how.

At BITWHITE, a payment that cannot be matched automatically goes to an operator for manual review. It can be sorted out, but it takes longer than usual: the payment has to be found, confirmed as yours, and only then can the order move forward.

Keep in mind that a network transaction is irreversible. The sender cannot recall it alone, so it is better to spend a minute checking the tag before sending than days sorting things out afterward. If the payment has already gone out without a tag, follow the plan in the section below.

Why doesn't the network check the tag for you?

The blockchain only checks that the transaction is valid: the signature is correct, the funds are sufficient and the address is allowed. Whether the recipient needs a tag is something the network generally does not know or check.

That is why a transfer without a tag goes through just as successfully as one with it. You will see the “confirmed” status, which can create a false sense that everything is fine. In reality, the recipient sees a payment on the shared address and cannot automatically link it to you.

Hence a practical rule: a network confirmation tells you the coins were delivered to the address, not that the payment was credited. To learn what a confirmation actually means, read the article on how long to wait for confirmations on different networks.

How do you enter the tag correctly? Step by step

1. Open your order and find the block with the payment address. If the selected coin needs a tag, it is shown next to the address.
2. Copy the tag in full using the copy button rather than typing it by hand.
3. In your wallet, find the “Memo,” “Tag” or “Comment” field and paste the value without spaces, line breaks or extra characters.
4. Compare the address and tag with your order. The principles of checking are described in the article on how to check a wallet address.
5. Only then confirm the transfer, and save the txid (transaction hash).

Remember that the payment address for each order is valid for up to 2 hours. Don't leave the transfer to the last moment, so you have time to double-check.

Practical example: sending XRP from an exchange

Imagine a hypothetical situation: you are exchanging XRP, and your coins are on an exchange. Your order shows an address and a numeric destination tag.

On the withdrawal page, the exchange shows two fields: the recipient address and the tag. Beginners often fill in only the address because the tag is marked as optional. That is a trap: the withdrawal form considers the field optional, not the recipient.

The right order is this: paste the address, then paste the number from your order into the tag field, check both values, and look at the final amount after the withdrawal fee. Remember that the exchange charges its own network fee and it is deducted from the amount. How this affects the total is covered in the article on underpayments and overpayments.

After sending, copy the txid. You will need it to track the payment and, if necessary, to contact support.

Example for TON: a text comment

In TON, the tag most often looks like a comment on the transfer. Suppose your order specifies a comment made of letters and digits.

Accuracy down to the character matters here: letter case, hyphens and digits must be kept exactly as they are. If your wallet applies autocorrect on paste or strips some characters, check the field by eye after pasting.

One more detail: some TON wallets hide the comment field behind a separate button or an “Add comment” item. If you can't see the field, look for it in the transfer settings rather than sending the payment without it.

Do you need a tag when receiving coins?

It depends on where you are receiving. For your own wallet, a tag is usually not required: the address belongs only to you.

If you are receiving to an exchange address that requires a memo, the situation is the opposite. The exchange credits funds by tag, so you need to enter it in the order along with the recipient details. Without it, the payment will arrive at the exchange's shared address but will not reach your account automatically.

The practical takeaway: before creating an order, open the deposit page for the coin on the exchange and check whether it has a memo or tag field. If it does, copy both values and enter them in the order. Making a habit of checking this in advance spares you most of the trouble. For more on getting the address itself right, see the article on how to exchange cryptocurrency.

Common mistakes with memo and destination tag

• Tag left out. The most common mistake: the address is pasted, but the tag field stays empty.
• Tag entered with a space. An extra space at the beginning or end can change the value. Copy and paste instead of typing.
• Tag mixed up with the address. A numeric tag ends up in the address field or vice versa. The wallet will usually refuse such a payment, but it is still worth checking.
• Tag from a previous order. Every order has its own payment details. You must not reuse an old tag.
• Invented tag. Some people enter a number of their own “for convenience.” Only the tag shown in your order is accepted.
• Wrong network. A tag won't help if the coins were sent on a different network. See what to do about a network or amount error.

What to do if the payment went out without a tag or with the wrong one

Rule number one: do not send the payment again. A second transfer will only complicate the investigation and may cost you extra network fees.

1. Copy the txid of the transaction you sent. If you don't know where to find it, read the article on how to find a transaction by txid.
2. Open BITWHITE support in Telegram.
3. Write the order number (BW-…), the txid, the amount, the network, the tag that was in the order, and the tag you actually entered, if you remember it.
4. Wait for an operator's reply. A payment that could not be matched automatically is reviewed manually.

Include only the data listed above. The service never asks for a seed phrase, and any message asking for one should be treated as fraud. The only official domain is bitwhite.net: if a support link leads to a different address, don't follow it.

Memo in automatic and manual mode

A tag is needed in both exchange modes, because it belongs to the payment, not to the way it is processed. The only difference is who matches the transfer to the order and how.

In automatic mode, a payment with correct details is processed without an operator, and if the exchange fails, the coins are returned to the refund address. In manual mode, an operator checks the order. A detailed comparison is in the article on automatic vs. manual exchange.

Either way, a missing or incorrect tag takes the payment out of the standard flow and sends it to manual review.

Where wrong tags come from, and how not to get tricked

Take the tag and the address only from your order on the official domain bitwhite.net. If someone sends you a “new tag” or an “updated address” in a private message, treat it as a reason for caution, not for action.

Typical signs of a swap are described in the article on how to spot a fake exchange service. For the tag, the rule is simple: you see the payment details in your order, you don't receive them from third parties.

Checklist before sending a payment with a tag

• The network in your wallet matches the network in the order.
• The address was copied from the order and matches in the first and last characters.
• The tag was copied with the button, with no spaces or extra characters.
• The tag is pasted into the “Memo,” “Tag” or “Comment” field specifically.
• The amount after the withdrawal fee matches the order amount.
• There is enough time left before the payment window closes.
• The txid is saved right after sending.

The whole check takes about a minute. This is a case where being careful is cheaper than fixing a mistake.