How do I resend a transaction with RBF on a Bitcoin Core node v.19 or v.20? I am running it on Ubuntu.

I tried bumpfee txid and got the response that “the transaction is not BIP125 replaceable”. What does that mean?

  • Have you tried bumpfee txid ?
    – user103136
    Nov 19, 2021 at 15:10
  • @Prayank yeah it said transaction is not BIP125 replaceable Nov 19, 2021 at 17:27

1 Answer 1


According to BIP 125 which is implemented in Bitcoin Core with one exception, only transactions that signal RBF will be replaceable later with higher fee rate and fee.

You can enable RBF for all wallet transactions using walletrbf=1 in bitcoin.conf file however it should be enabled by default.

In GUI there is a checkbox for RBF which can be used for each transaction:


If you are using RPC commands for creating transaction, most of them have arguments to enable RBF. Example: "replaceable" : true in fundrawtransaction

  • OP's question is about how to make Bitcoin Core signal BIP125, I suspect. Nov 19, 2021 at 20:26
  • Got it. This solved it, abandontransaction :-) Nov 19, 2021 at 20:26
  • 1
    @HereshAriai That won't do anything. Nov 19, 2021 at 20:26

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