Child Pays for Parent (CPFP) is a method to incentivise miners to pick up a Bitcoin transaction that was broadcast with low miner fees attached to it (i.e., the Parent) by using the unconfirmed outputs of that transaction as the inputs of a new Bitcoin transaction that has higher miner fees attached to it (i.e., the Child).
This way, miners will confirm both transactions (parent and child) at the same time as the combined miner fees are appealing to them.
Example:
- You withdraw 1 BTC from your Bitaroo Account, paying Economy Transfer Fee
- Later, you check a bitcoin explorer (such as mempool.bitaroo.net) and realise the transaction confirmation may take longer than expected.
- You then go to your favourite wallet (to which you withdrew the funds) and spend the unconfirmed transaction by sending it to another wallet you control or to the same wallet but using a different receiving address, this time with higher miner fees.
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To achieve the best results, please consider using our CPFP Calculator.
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Learn more about CPFP by watching this video:
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Parman has made a video demonstrating how to perform CPFP using our CPFP calculator.
We hope you will find it useful.
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Please note: CPFP usually works really well, but not always. At times, miners may process the transactions later than desired, especially if previous ancestor transactions are unconfirmed as well.