Bitcoin Halving Explained: What It Is and Why It Matters

4 min read · Updated Nov 11, 2026

The halving is a rule built into Bitcoin: every 210,000 blocks (about four years), the reward miners receive for each new block is cut in half.

Why it exists

It makes Bitcoin's supply predictable and steadily scarcer, capping the total at 21 million coins.

History so far

The reward started at 50 BTC in 2009 and fell to 25 (2012), 12.5 (2016), 6.25 (2020) and 3.125 (2024). The next halving is expected around 2028.

Does it affect price?

Past halvings were followed by strong bull markets, but many other factors were involved and past patterns don't guarantee future results. Check the Bitcoin chart to see the cycles yourself.

This guide is educational and not financial advice.