What Is Bitcoin Halving?

2026-09-10

A Bitcoin halving is an automatic event that cuts in half the number of new bitcoin entering circulation through mining. It happens roughly once every four years, progressively slowing the rate of new issuance. This guide explains it.

How it works

Bitcoin's "block reward" is halved every 210,000 blocks — about once every four years [1]. That means the new coins a miner earns for each block drop by 50%, steadily slowing the issuance of new bitcoin and reinforcing its scarcity [2].

Bitcoin halving at a glance

A halving is an automatic 50% cut to the block reward, and the cycle runs on block count: one halving every 210,000 blocks, or close to four years. Slower issuance is the purpose — each cut reduces the flow of new coins and reinforces Bitcoin's scarcity. April 2024 brought the fourth halving, and the block reward has stood at 3.125 BTC since.

History and impact

The most recent halving took place in April 2024 — Bitcoin's fourth — cutting the block reward from 6.25 BTC to 3.125 BTC [2]. Halvings directly shape the pace of new supply and are long seen as central to Bitcoin's "scarcity" design, though they do not directly set the price.

The bottom line

Bitcoin halving is the mechanism that cuts the block reward in half about every four years, controlling supply and reinforcing scarcity. Understanding it helps you see Bitcoin's issuance logic. To keep learning the fundamentals, follow more from Bitbase Academy.

Related market pages

Bitbase pages for the tokens named in this article:

BTC: View price · Spot market · Perpetual market

Disclaimer: This article is educational content from Bitbase Academy, provided for information only. It does not constitute investment, trading, tax, or financial advice. Written as of June 2026; refer to the latest official information.