How Do Transaction Fees Contribute to a Miner’s Revenue?

When a transaction is included in a block, the sender typically pays a fee to incentivize miners to process and confirm it. This transaction fee is collected by the miner who successfully mines the block, in addition to the newly minted cryptocurrency block reward.

As the block reward halves over time, transaction fees are expected to become a more significant component of a miner's total revenue. High network congestion often leads to higher average transaction fees.