How Crypto Transactions Work

Sending crypto feels mysterious the first time. It isn't — it's just a few moving parts. Understanding them turns a nerve-wracking transfer into a routine one and helps you avoid the beginner mistakes that lose money.

Addresses: where crypto goes

Every walletSoftware or hardware that stores the private keys used to access and move your crypto. has a public address — a long string of letters and numbers, a bit like an account number you can safely share to receive funds. To send crypto, you enter the recipient's address and an amount. Addresses are case-sensitive and unforgiving: send to the wrong one and it's gone, which is why you always double-check the first and last few characters, and ideally copy-paste rather than type.

What happens when you hit send

When you send, your wallet broadcasts the transaction to the network. Computers around the world check it's valid (you have the funds, the signature is genuine) and bundle it into the next block. Once it's recorded, it's part of the permanent ledger. The whole thing usually takes seconds to minutes depending on the network.

Confirmations

After a transaction is included, it gathers confirmations as more blocks pile on top of it. More confirmations mean it's more deeply settled and effectively irreversible. Exchanges often wait for a few confirmations before crediting a deposit — that's normal, not a problem.

Network fees

Transactions cost a small network fee (often called gasThe fee paid to process a transaction on a blockchain like Ethereum.), paid to the network for processing — separate from anything an exchange charges. Fees rise when the network is busy and fall when it's quiet. On some networks they're a fraction of a cent; on others, during congestion, they can spike.

The rule that matters most

Crypto transactions can't be reversed. There's no bank to call, no chargeback, no undo. That single fact is behind most beginner losses and most scams. Always verify the address, start with a tiny test amount for anything new, and never rush.

Key takeaways

• You send crypto to a public address — double-check it, since mistakes can't be undone.
• The network validates your transaction and records it in a block, usually in seconds to minutes.
• Confirmations stack up over time, making a transaction progressively more settled.
• A small network (gas) fee pays for processing and varies with how busy the network is.
• Transactions are irreversible — verify everything and test with a small amount first.