Replace-by-Fee (RBF)

An unconfirmed transaction can be replaced by another version of the same transaction that spends the same inputs. Most full nodes support this if the earlier transaction enables BIP125 signaling and the replacement transaction increases the amount of fee paid. In terms of block chain space used, this is the most efficient form of fee bumping.

Receiving support

  • No notification
    There are no incoming transaction notifications for this service
  • Received transaction not labeled replaceable in list
    Does not visually indicate that an incoming transaction has signaled RBF
  • Received transaction not labeled replaceable in transaction details
    Does not visually indicate that a received transaction has signaled RBF when viewing the transaction details
  • No unconfirmed transactions
    Neither the original nor replacement transactions are shown in the transaction list. Most likely unconfirmed transactions are not supported

Sending support

  • Does not signal BIP125 replacability when sending transactions
    Does not allow sending of BIP125 opt-in-RBF transactions in the interface
  • Sent transaction not labeled replaceable in list
    Does not visually indicate that an outgoing transaction has signaled RBF
  • Sent transaction not labeled replaceable in transaction details
    Does not visually indicate that a sent transaction has signaled RBF when viewing the transaction details
  • No replacements in transaction list
    Because no transaction replacement is possible, we could not test whether original or replacement sent transactions are shown after replacement

Usability

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Sending RBF Transaction - Default send transaction screen. No options for RBF while sending or in app settings.
Sending RBF Transaction - Default send transaction screen. No options for RBF while sending or in app settings.

Sending RBF Transaction - Send transaction miner fee details. No RBF options.
Sending RBF Transaction - Send transaction miner fee details. No RBF options.

Bumping RBF Transaction - Transaction list. No option to bump since transaction sent without RBF.
Bumping RBF Transaction - Transaction list. No option to bump since transaction sent without RBF.

Bumping RBF Transaction - Sent transaction details. No sign RBF/not or bumping.
Bumping RBF Transaction - Sent transaction details. No sign RBF/not or bumping.

Receiving RBF Transaction - SReceiving RBF, or any transaction. No unconfirmed transactions of any kind show.
Receiving RBF Transaction - SReceiving RBF, or any transaction. No unconfirmed transactions of any kind show.