What are Bitcoin fees and confirmations?
A fee is what you pay the network to process your transaction; it rises and falls with demand. A confirmation is each new block added after the one containing your transaction — more confirmations mean it is more settled.
Fees, plainly
Because space in each block is limited, transactions effectively compete for it. Attaching a higher fee tends to get a transaction processed sooner; a lower fee may leave it waiting. Fees have nothing to do with the amount you send — a large transfer and a small one can cost the same to process.
Confirmations, plainly
When your transaction first lands in a block, that's one confirmation. Each subsequent block stacked on top is another. More confirmations make reversing the transaction increasingly impractical, which is why recipients of larger amounts often wait for several.
Fees and confirmations explain why a transfer might be cheap or expensive, fast or slow. Knowing this prevents overpaying and prevents assuming a payment is done before it actually is.
Think of fees like express-versus-standard shipping during a busy season, and confirmations like delivery scans — the more scans logged, the more certain the package has truly arrived.
- Setting a fee too low can leave a transaction stuck and pending.
- Treating zero confirmations as final is risky for anything of meaningful value.
- Fee estimates change minute to minute with network demand.
Practice in the Wallet Simulator
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Last reviewed 2026-06-25. This topic can change over time; always confirm current specifics from primary sources.