Bitcoin user accidentally sent $60,000 in fees—Don't make the same mistake

On April 8, 2025, a Bitcoin user accidentally paid a transaction fee of over 0.75 BTC (around 60,000–70,000 USD) when using the replace-by-fee (RBF) feature to expedite a stuck transaction.

The error occurs when they enter the wrong unit of charge—instead of 30.5 sat/vB, they enter 305,000 sat/vB. In addition, this person forgot to specify the address to receive the excess money, causing the entire 0.75 BTC to be charged as a fee and sent to the miner. The incident shows the great risk of using advanced features without a clear understanding of how they work. To avoid mistakes, users should choose a reputable wallet, understand the (sats vs sat/vB) fee unit, double-check the transaction, and use the suggested fee if unsure. A small mistake can lead to serious losses.