Why should a deposit address be checked every time, even if it is saved?

A deposit address should be checked every time, even if saved, because a service may change the address, network, memo/tag or asset acceptance rules. In crypto, old details are not always safe, and an address or network mistake can lead to long review or impossible recovery.

Why can an address change?#

Exchanges, wallets and payment services update infrastructure: they change custodians, add networks, disable old ones, move users to new addresses or introduce memo/tag requirements. For the user, the asset may look the same, while the details have changed.

Sending to an old saved address without checking can create a situation where the network accepts the transaction, but the recipient does not credit the deposit automatically.

Why is the network as important as the address?#

The same ticker can exist on several networks. An asset may be available on mainnet, an L2 or another compatible environment. The address may look similar, but the recipient service can have different acceptance rules.

Ethereum.org documentation on transactions explains that a transaction changes network state after inclusion in a block. But if the user chose an unsupported network, a valid transaction on that network does not mean a valid deposit at the recipient.

What should be checked before sending?#

The minimum list is asset, network, address, memo/tag, minimum amount, fee, confirmation count and recipient deposit status. If the service shows a warning, it should be read instead of dismissed automatically.

For a large amount, a small test transfer can be useful. It does not remove every risk, but it shows that the selected network, address and recipient processing work.

What are the limits and risks?#

Even checking does not guarantee instant credit. A network can be congested, the fee can be low, or the service can be under maintenance. But checking reduces the most expensive mistake: sending to the wrong route.

Malware risk also matters. Some attacks replace addresses in the clipboard. Addresses should be compared by the beginning and end, and larger transfers deserve extra checks.

How can the habit be built?#

Before each transfer, open the current deposit screen, copy details again, check network and memo/tag, then keep the tx hash after sending. Do not rely only on an old note or a previous successful transfer.

For beginners, the simple rule is that a crypto transfer starts not with the send button, but with route checking. Current details matter more than speed.