Why Crypto Deposits Need a Memo or Tag

Some exchange deposits need a memo, destination tag or similar ID because many customers send to the same platform-controlled address. The address gets the coins to the exchange; the memo tells the exchange whose account to credit. Whether you need one depends on the coin and the exchange, and the reason has a lot to do with how some blockchains charge for accounts.

Short answer

A deposit needs a memo or tag when the receiving platform pools many customers in one on-chain account and uses the extra value to work out who sent what. Without it, the coins can arrive at the exchange and still not show up in your balance.

What a memo or tag is

A memo, destination tag or payment ID is extra deposit information used by some coins and exchanges to route funds internally.

Why exchanges use them

On Bitcoin or Ethereum, an exchange can cheaply generate a fresh address for every customer. On some account-based ledgers, every account costs money to keep open. The XRP Ledger requires a base reserve of 1 XRP per account (its documentation, checked on October 31, 2026), and Stellar requires a minimum balance per account too. Stellar's own guide says most custodial services, exchanges included, choose a single pooled account and map deposits to customers with an internal database. The memo or tag is what makes that mapping possible.

What happens if it is missing

The transaction may arrive at the exchange address but not be credited automatically to your account.

Encoded addresses can replace a separate field

Some networks offer a combined format so the ID can't be forgotten. Stellar muxed accounts start with M and combine the normal G address with a 64-bit numeric ID, and the XRP Ledger has X-addresses that bundle an account with a destination tag. Use these only when the exchange publishes them and your wallet clearly supports them; otherwise stick to the address plus memo the deposit page shows.

A memo is public

Memos and tags are written to the blockchain and anyone can read them. Enter only the value the exchange gives you, never a password, an email or anything personal.

Which coins usually use one

The coins that most often need a memo or tag on exchanges are XRP (destination tag), Stellar XLM (memo), TON (comment or memo), Cosmos ATOM (memo), Hedera HBAR (memo) and EOS (memo). Rules still differ by exchange, and some platforms give every user a separate address even for these coins. The deposit screen is the only reliable answer.

Deposit checklist

Before sending, copy address, memo/tag, coin, network and minimum deposit from the same exchange deposit page.

• Address
• Memo, tag or payment ID
• Coin
• Network
• Minimum deposit
• A small test amount above that minimum

Decision rule

If the deposit screen shows a memo or tag, treat it as part of the address information.

Example: XRP leaving FaucetPay

On October 31, 2026, FaucetPay's Fees page listed XRP withdrawals with an 11 XRP minimum and XLM with a 1.01 XLM minimum. If you send either to an exchange, copy the exchange's address and its tag or memo from the same deposit screen, and don't confirm the withdrawal until the memo appears in the final summary.

Sources

Protocol documentation and FaucetPay's Fees page, checked on October 31, 2026.

• XRP Ledger reserves: https://xrpl.org/docs/concepts/accounts/reserves
• XRP Ledger source and destination tags: https://xrpl.org/docs/concepts/transactions/source-and-destination-tags
• Stellar pooled accounts, muxed accounts and memos: https://developers.stellar.org/docs/build/guides/transactions/pooled-accounts-muxed-accounts-memos
• FaucetPay live fees and minimums: https://beta.faucetpay.io/fees

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