Plain English
A halving is the scheduled event when Bitcoin’s block reward for miners is cut in half. It happens roughly every four years and reduces the rate of new BTC issuance by 50% each time.
How it actually works
Bitcoin launched with a block reward of 50 BTC. After 210,000 blocks (~4 years), it dropped to 25. Then 12.5. Then 6.25. The 2024 halving cut it to 3.125. By around 2140, the reward will reach zero and no new Bitcoin will be issued. Total supply is capped at 21 million.
What it means for you
Halvings are the structural reason Bitcoin’s supply curve is predictable. Historically, the year following each halving has been associated with significant price appreciation. Past performance is not a guarantee, but the declining-issuance math is built into the protocol.
We discuss the halving cycle as one input to long-term Bitcoin positioning — including the case for and against treating it as a reliable predictor.
Educational content only. Not investment, tax, or legal advice.