BITCOIN-TX(1)                    User Commands                   BITCOIN-TX(1)

NAME
       bitcoin-tx - manual page for bitcoin-tx v31.1.0

SYNOPSIS
       bitcoin-tx [options] <hex-tx> [commands]
       bitcoin-tx [options] -create [commands]

DESCRIPTION
       Bitcoin Core bitcoin-tx utility version v31.1.0

       The bitcoin-tx tool is used for creating and modifying bitcoin
       transactions.

       bitcoin-tx can be used with "<hex-tx> [commands]" to update a
       hex-encoded bitcoin transaction, or with "-create [commands]" to create
       a hex-encoded bitcoin transaction.

OPTIONS
       -create

              Create new, empty TX.

       -help

              Print this help message and exit (also -h or -?)

       -json

              Select JSON output

       -txid

              Output only the hex-encoded transaction id of the resultant
              transaction.

       -version

              Print version and exit

       Debugging/Testing options:

       Chain selection options:

       -chain=<chain>

              Use the chain <chain> (default: main). Allowed values: main,
              test, testnet4, signet, regtest

       -signet

              Use the signet chain. Equivalent to -chain=signet. Note that the
              network is defined by the -signetchallenge parameter

       -signetchallenge

              Blocks must satisfy the given script to be considered valid
              (only for signet networks; defaults to the global default signet
              test network challenge)

       -signetseednode

              Specify a seed node for the signet network, in the
              hostname[:port] format, e.g. sig.net:1234 (may be used multiple
              times to specify multiple seed nodes; defaults to the global
              default signet test network seed node(s))

       -testnet

              Use the testnet3 chain. Equivalent to -chain=test. Support for
              testnet3 is deprecated and will be removed in an upcoming
              release.  Consider moving to testnet4 now by using -testnet4.

       -testnet4

              Use the testnet4 chain. Equivalent to -chain=testnet4.

       Commands:

              delin=N

              Delete input N from TX

              delout=N

              Delete output N from TX

              in=TXID:VOUT(:SEQUENCE_NUMBER)

              Add input to TX

              locktime=N

              Set TX lock time to N

              nversion=N

              Set TX version to N

              outaddr=VALUE:ADDRESS

              Add address-based output to TX

              outdata=[VALUE:]DATA

              Add data-based output to TX

              outmultisig=VALUE:REQUIRED:PUBKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]

              Add Pay To n-of-m Multi-sig output to TX. n = REQUIRED, m =
              PUBKEYS.  Optionally add the "W" flag to produce a
              pay-to-witness-script-hash output. Optionally add the "S" flag
              to wrap the output in a pay-to-script-hash.

              outpubkey=VALUE:PUBKEY[:FLAGS]

              Add pay-to-pubkey output to TX. Optionally add the "W" flag to
              produce a pay-to-witness-pubkey-hash output. Optionally add the
              "S" flag to wrap the output in a pay-to-script-hash.

              outscript=VALUE:SCRIPT[:FLAGS]

              Add raw script output to TX. Optionally add the "W" flag to
              produce a pay-to-witness-script-hash output. Optionally add the
              "S" flag to wrap the output in a pay-to-script-hash.

              replaceable(=N)

              Sets Replace-By-Fee (RBF) opt-in sequence number for input N. If
              N is not provided, the command attempts to opt-in all available
              inputs for RBF. If the transaction has no inputs, this option is
              ignored.

              sign=SIGHASH-FLAGS

              Add zero or more signatures to transaction. This command
              requires JSON registers:prevtxs=JSON object, privatekeys=JSON
              object. See signrawtransactionwithkey docs for format of sighash
              flags, JSON objects.

       Register Commands:

              load=NAME:FILENAME

              Load JSON file FILENAME into register NAME

              set=NAME:JSON-STRING

              Set register NAME to given JSON-STRING

COPYRIGHT
       Copyright (C) 2009-2026 The Bitcoin Core developers

       Please contribute if you find Bitcoin Core useful. Visit
       <https://bitcoincore.org/> for further information about the software.
       The source code is available from <https://github.com/bitcoin/bitcoin>.

       This is experimental software.  Distributed under the MIT software
       license, see the accompanying file COPYING or
       <https://opensource.org/license/MIT>

SEE ALSO
       bitcoin(1), bitcoind(1), bitcoin-cli(1), bitcoin-tx(1), bitcoin-
       wallet(1), bitcoin-util(1), bitcoin-qt(1)

bitcoin-tx v31.1.0                 July 2026                     BITCOIN-TX(1)