Multisig in Electrum ABC.
Spread signing authority across devices and people without trusting any one of them.
How multisig works
A multisig wallet generates a single XEC address whose unlocking condition is m valid signatures out of n possible cosigners. The cosigners can be anywhere — different machines, different countries, different humans. No single one can move funds on their own.
Electrum ABC builds the script for you. You only ever share xpubs (public information), never seeds. The redeem script is the contract that ties it all together; back it up.
Build a 2-of-3 wallet.
- Step 01
Decide m-of-n
Pick how many signatures (m) out of how many cosigners (n). 2-of-3 is the most common: any two cosigners can spend, no single one can.
- Step 02
Create the wallet
In Electrum ABC, choose New/Restore → Multi-signature. Set n and m.
- Step 03
Collect xpubs
Each cosigner generates their master public key (xpub) and shares it — never the seed. Paste each xpub in turn.
- Step 04
Save the redeem script
Once all xpubs are in, the wallet builds the redeem script. Save it with your backups.
- Step 05
Test small first
Send a tiny amount in and out, exercising the signing flow on every cosigner device, before funding seriously.
Multisig questions.
How many cosigners can I add?+
Electrum ABC supports m-of-n multisig from 2-of-2 up to 15-of-15. Anything beyond 7-of-10 starts to feel clunky in the UI; for production use, 2-of-3 and 3-of-5 are the common configurations.
Can I mix hardware and software cosigners?+
Yes. The most common production setup is two hardware wallets plus one offline software cosigner. The wallet does not care whether a signature came from a Ledger, a Trezor, or another Electrum ABC install — only that the signature is valid.
Where is the redeem script?+
Open the multisig wallet, go to Wallet → Information. The redeem script and the script type are listed there. Save them with your seed backups — they are required to recover the wallet from cosigner keys alone.