The blockchain transaction fee is an additional amount the user must pay for such a payment. Generally speaking, a commission like this applies only to cryptocurrency blockchains that use PoW technology. The network, which controls and checks all transactions, is constantly monitored by miners in order to maintain the cryptocurrency. As a reward for their efforts, they charge a transaction fee on the blockchain. Transaction fees in the blockchain decrease as the number of miners and their computing power increases. Moreover, commissions decrease as the number of transactions made by customers decreases, i.e. when customers make fewer transfers.

A blockchain transaction fee is a small amount paid to process and validate a transaction on a blockchain network. It compensates miners or validators for verifying transactions, securing the network, and adding data to the blockchain.

Fees usually depend on network demand, transaction size, and processing speed. When the network is busy, fees rise as users compete for faster confirmation. Lower fees may result in slower processing. In blockchains like Bitcoin and Ethereum, fees are dynamic and can change rapidly based on congestion.

Transaction fees also help prevent spam and inefficient use of network resources. For users, understanding fees is important for cost control, especially during peak activity. Choosing the right fee balance ensures transactions are confirmed efficiently without overpaying.