I wanna send a tiny amount of BTC (0.001BTC). I am not in a hurry and I noticed the mempool is sometimes empty these days because the market is cold. So can I set the network fee to 1sat/byte or even zero?

Will miners add my zero-fee tx to the new block when the mempool is empty?

Thank you.

1 Answer 1


Yes, when the mempool is empty, you can set the transaction fee to the minimum relay fee of 1 sat/vbyte. However you cannot make a transaction no fee as there still is the minimum relay fee. The minimum fee is there to prevent people from spamming 0 fee transactions.

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