# Halving

*Crypto & Digital Assets — Finicade finance glossary*

The halving cuts Bitcoin's block reward in half roughly every four years, tapering new issuance towards the 21 million cap. It's the sector's most anticipated scheduled event, and its effect is contested: supply reduction is fully known in advance, so an efficient market should already have priced it. Its unambiguous effect is on miners, whose revenue halves overnight while costs do not.

**Also known as:** bitcoin halving, halvening, block reward halving

**Related terms:** [Bitcoin](https://finicade.com/glossary/bitcoin), [Mining](https://finicade.com/glossary/mining), [Tokenomics](https://finicade.com/glossary/tokenomics), [Circulating Supply](https://finicade.com/glossary/circulating-supply), [Proof of Work](https://finicade.com/glossary/proof-of-work)

Source: https://finicade.com/glossary/halving