Why is there a minimum balance required?

Transactions over bitcoin lightning network require a transaction fee which is paid by the sender of the payment. .

Due to the transaction fees being unknown before making a payment we keep a fee reserve as a minimum balance for your account. The minimum balance is the bigger amount of 0.1% of the transaction amount or 10 sats.

If you want to close your account and want to withdraw the last few sats, we're happy to help. Just shoot us an email at support@getalby.com.

If you want to learn more why we need to do that and learn about the attack that we're preventing with those measures, you can read about it here: https://github.com/Reckless-Satoshi/ln-fee-siphoning

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