How does Bitcoin halving work?

Miners earn BTC for validating transactions. Every 210,000 blocks, that reward automatically drops by 50% - no human triggers it. Bitcoin launched with 50 BTC per block; today, after four halvings, miners earn just 3.125 BTC.

Why does Bitcoin halving occur every four years?

Satoshi Nakamoto designed it this way intentionally - mimicking how gold becomes harder to mine over time. Blocks are added every ~10 minutes, so 210,000 blocks takes roughly four years, keeping Bitcoin’s total supply capped at 21 million.

How many Bitcoin halvings are left?

Bitcoin will see 32 halvings total. With four done as of April 2024, around 28 remain before all 21 million BTC are mined - estimated around 2140. After that, miners earn only through transaction fees.

How does Bitcoin halving affect Bitcoin price?

History suggests halvings spark rallies - prices surged dramatically after 2012, 2016, and 2020. The 2024 halving, boosted by newly approved spot Bitcoin ETFs, saw BTC climb roughly 31% by mid-2025, with further gains tied to macro conditions.

What impact does Bitcoin halving have on miners?

It’s brutal for smaller players. The 2024 halving slashed daily new BTC from ~900 to ~450 overnight. Only miners with cheap electricity and modern hardware survive. Bigger, well-funded operations absorb the hit; smaller ones often shut down.

Delta Exchange Blog

Educational

What is Bitcoin Halving?

Q: What is Bitcoin halving?

Think of it as Bitcoin’s built-in supply control. Every four years, the reward miners earn for processing transactions is cut in half, making new BTC harder to earn and gradually more scarce. The last halving was April 19, 2024.

Shubham Goyal

December 23, 2021