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

  • Notification does not note RBF
    Notification of incoming transaction does not note that the transaction is RBF signaling
  • Received transaction labeled replaceable in list
    Visually indicates 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
  • Shows replacement transaction only
    Only the replacement transaction is shown in the transaction list. No original transaction shown

Sending support

  • Signals BIP125 replacability when sending transactions
    Allows sending of BIP125 opt-in-RBF transactions in the interface
  • Sent transaction labeled replaceable in list
    Visually indicates 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
  • Shows replacement transaction only
    Only the replacement transaction is shown in the transaction list. No original transaction shown

Usability

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Sending RBF Transaction - Default Wallet Send Screen
Sending RBF Transaction - Default Wallet Send Screen

Sending RBF Transaction - Preferences Pane with RBF checkbox
Sending RBF Transaction - Preferences Pane with RBF checkbox

Sending RBF Transaction - Transaction list screen for outgoing RBF transaction. RBF noted
Sending RBF Transaction - Transaction list screen for outgoing RBF transaction. RBF noted

Sending RBF Transaction - Transaction details screen for outgoing RBF transaction. No note of RBF transaction.
Sending RBF Transaction - Transaction details screen for outgoing RBF transaction. No note of RBF transaction.

Bumping RBF Enabled Transaction - Transaction List context menu for “Increase fee”
Bumping RBF Enabled Transaction - Transaction List context menu for “Increase fee”

Bumping RBF Enabled Transaction - Dialog for inputting bumped fee
Bumping RBF Enabled Transaction - Dialog for inputting bumped fee

Bumping RBF Enabled Transaction - Transaction list shows only one unconfirmed transaction, the latest, bumped. RBF noted.
Bumping RBF Enabled Transaction - Transaction list shows only one unconfirmed transaction, the latest, bumped. RBF noted.

Bumping RBF Enabled Transaction - Transaction details of bumped transaction. No RBF noted. No note of original transaction.
Bumping RBF Enabled Transaction - Transaction details of bumped transaction. No RBF noted. No note of original transaction.

Receiving RBF Transaction - Notification of incoming transaction. No specific note that the transaction is RBF signalled
Receiving RBF Transaction - Notification of incoming transaction. No specific note that the transaction is RBF signalled

Receiving RBF Transaction - Transaction List Screen. Notes rbf transaction as well as fee size
Receiving RBF Transaction - Transaction List Screen. Notes rbf transaction as well as fee size

Receiving RBF Transaction - Transaction Details screen for an RBF transaction. No RBF note.
Receiving RBF Transaction - Transaction Details screen for an RBF transaction. No RBF note.

Receiving Bumped RBF Transaction - New transaction notification for the RBF bumped transaction
Receiving Bumped RBF Transaction - New transaction notification for the RBF bumped transaction

Receiving Bumped RBF Transaction - Transaction List Screen. Notes rbf transaction as well as fee size. The bumped transaction does not show up as a separate. The original transaction disappears.
Receiving Bumped RBF Transaction - Transaction List Screen. Notes rbf transaction as well as fee size. The bumped transaction does not show up as a separate. The original transaction disappears.

Receiving Bumped RBF Transaction - Transaction details of incoming bumped RBF transaction. RBF not noted.
Receiving Bumped RBF Transaction - Transaction details of incoming bumped RBF transaction. RBF not noted.