What Is Bitcoin RBF (rеplace-by-Fee) and When Should You Use It?
Have you ever sent a Bitcoin transaction and waited… and waited… with no confirmation? That’s where RBF, or rеplace-by-Fee, can save the day.
At wmiran.com, we believe in speed, privacy, and full control — and understanding RBF helps you take back control when your Bitcoin transaction gets stuck.
What Is RBF in Bitcoin?
rеplace-by-Fee (RBF) is a Bitcoin feature that allows you to resend an unconfirmed transaction with a higher fee. Miners will then prefer the new version — helping your transaction confirm faster.
This is especially useful during times of high network traffic, when low-fee transactions can sit unconfirmed for hours.
How Does RBF Work?
- You send a transaction with RBF enabled
- The transaction remains unconfirmed in the mempool
- You resend the same transaction with a higher fee
- Miners accept the higher-fee version and confirm it
The key is that RBF must be enabled when you first send the transaction. If it’s not, it cannot be replaced.
When Should You Use RBF?
- Transaction stuck in mempool with low fees
- You want to ensure faster confirmation
- You need to cancel or redirect a pending transaction (advanced use)
Some wallets allow you to easily increase fees via RBF, including Electrum, Sparrow Wallet, and Bitcoin Core.
RBF vs CPFP: What’s the Difference?
RBF is sender-controlled — you resend the transaction. CPFP (Child Pays for Parent) is receiver-controlled — the recipient boosts confirmation by spending the output with a higher fee.
Is RBF Safe?
Yes, RBF is part of the official Bitcoin protocol. But because it allows transactions to be replaced, some services may wait for multiple confirmations before accepting payments sent with RBF enabled.
That’s why it’s ideal for personal use or non-instant swaps — not for time-sensitive commerce unless you trust the counterparty.
Using RBF with wmiran.com
At wmiran.com, we help users swap BTC and other coins without KYC, limits, or logins. If you ever send a transaction with a low fee, using RBF can help you speed it up and keep the swap moving smoothly.
Conclusion
Bitcoin RBF gives you a second chance — a way to fix slow or stuck transactions by increasing the fee. It’s a powerful tool for anyone using Bitcoin in real life.
Learn it, use it, and stay in control — that’s the Bitcoin way. And at wmiran.com, we support that every step of the way.
