Every time a new block is added to a chain, the protocol pays the participant who produced it. On Bitcoin that payment has two parts: a <strong>subsidy</strong> of freshly created coins that did not exist before, and the <strong>transaction fees</strong> attached to the transactions bundled into that <a href="/glossary/block/">block</a>. Added together, those two parts are the block reward.
The subsidy is not fixed forever. Bitcoin's rules cut it in half every 210,000 blocks — the event everyone calls the halving — which is how the supply schedule marches towards the 21 million coin cap. Once the subsidy has shrunk far enough, fees are meant to carry the load on their own. Whether they will be enough is a genuinely open argument among engineers, not a settled question.
Who collects the reward depends on the consensus design. Under <a href="/glossary/proof-of-work/">proof of work</a> it goes to the miner who found a valid hash first; under proof of stake it goes to the chosen <a href="/glossary/validator/">validator</a>. Either way it is a payment for work and capital already committed, not a yield handed to coin holders. Miners buy hardware and burn electricity up front while competing for a reward only one of them wins, so the economics can be unforgiving even when the network itself is perfectly healthy.
Because block rewards are the only source of new coins on most chains, changing them means changing the monetary policy of the network. That is why proposals to alter a reward schedule are argued over so fiercely, and why the schedule being predictable is treated as a feature rather than a limitation.
Mining vs Staking, Explained
Key takeaways
- A block reward is the newly minted subsidy plus the transaction fees, and the fee share matters more as the subsidy shrinks.
- Halvings are scheduled protocol events written into the code, not reactions to anything happening in the market.
- The reward pays block producers for costs they have already incurred; it is not income for people who simply hold the coin.
Block Reward — frequently asked questions
Is the block reward the same thing as the halving?
No. The block reward is the payment itself. A halving is the scheduled moment when the newly minted portion of that payment is cut in half. On Bitcoin this happens every 210,000 blocks. After a halving the reward still exists, it is just smaller, and the transaction fees included in each block make up a proportionally larger share of what the producer receives.
Do block rewards ever run out?
The minted subsidy does on chains with a fixed supply cap. On Bitcoin the subsidy keeps halving until it rounds down to nothing, after which block producers are paid only from transaction fees. Not every chain works this way: plenty have no hard cap and keep issuing new coins indefinitely, which is a design choice worth checking before you assume any coin is scarce.
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