Can a child-pays-for-parent Bitcoin fee bump work if I cannot spend any of the parent transaction outputs?

No. CPFP requires creating a new transaction that spends an available output from the low-fee parent and pays a high enough combined fee to incentivise confirmation.

The answer

No. CPFP requires creating a new transaction that spends an available output from the low-fee parent and pays a high enough combined fee to incentivise confirmation.

What to do next

Find a controlled, unspent output from the original transaction; if none exists, CPFP is not an option for that wallet.

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Frequently asked questions

Can the recipient perform CPFP instead of the sender?

Yes, if the recipient controls an unconfirmed output from the original transaction.

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