A mining reward, also called a block reward, is the compensation a miner receives for successfully creating and validating a new block on a proof-of-work blockchain. It is the mechanism that incentivizes miners to contribute computing power to secure the network and process transactions.
What makes up a mining reward
In many networks, the mining reward has two parts. The first is newly minted cryptocurrency issued by the protocol, which increases supply according to the chain’s monetary rules. The second is transaction fees paid by users, which are collected from the transactions included in the block. For example, when miners assemble a block of pending transactions and solve the required computational puzzle, the protocol allows the winning miner to claim the block’s reward through a special “coinbase” transaction that credits the miner’s address.
How mining rewards are set and why they change
The newly minted portion of the reward is typically fixed per block at any given time and is governed by the blockchain’s consensus rules, not by a company. Some networks reduce this issuance on a schedule to control long-term inflation, which can shift miner revenue toward transaction fees over time. Meanwhile, the fee portion varies with network usage, when more people compete to get transactions confirmed, fees tend to make up a larger share of the total reward.
Why mining rewards matter
Mining rewards are central to proof-of-work security economics. They pay miners to honestly extend the chain, making attacks more expensive and helping keep transaction confirmation reliable. They also influence miner participation and the balance between coin issuance and fee-driven incentives, which affects a network’s sustainability and decentralization in the broader crypto ecosystem.