What it is
The coinbase transaction is unique because it has no input from previous transactions; instead, it creates new bitcoins from nothing. This transaction pays the block reward, consisting of the block subsidy and any transaction fees from the block, to the miner who successfully solved the block's proof-of-work puzzle. It is always the first transaction listed in any valid Bitcoin block.
The coinbase transaction is central to Bitcoin's issuance schedule and miner economics. Its value decreases over time due to the bitcoin halving events, which reduce the block subsidy. Monitoring the value of coinbase transactions helps analysts understand miner revenue and the network's inflation rate. News about miner profitability or the impact of halvings directly relates to the coinbase transaction's components.
Why it matters
The coinbase transaction is how new bitcoins enter circulation and how miners are paid. It's fundamental to Bitcoin's supply and security model.
Reviewed under editorial standardsUpdated September 26, 2026Not investment advice