Bitcoin's halving events are the crypto market's version of a supply earthquake — and the most recent one shook the industry in April 2024. If you've been asking "when was the last Bitcoin halving?", the answer is locked, dated, and still rippling through miner balance sheets and price charts right now. Here's the full breakdown of what happened, why it matters, and what's coming next.

The Last Bitcoin Halving Happened on April 19, 2024

Bitcoin's fourth and most recent halving took place on April 19, 2024, at block height 840,000. The event slashed the block reward miners receive for validating transactions from 6.25 BTC to 3.125 BTC — effectively cutting the new supply of Bitcoin entering circulation roughly every 10 minutes in half.

The cut was triggered automatically by Bitcoin's code, just like every halving before it. No CEO signed off, no board voted, and no government gave the green light. Every 210,000 blocks — about four years — the protocol forces this supply shock on itself, and the network simply obeys.

At the time of the halving, Bitcoin was trading around $63,000–$64,000, recovering from a slump earlier in the year. The immediate price reaction was muted compared to previous cycles, but the structural impact on miners was brutal and instant.

Every Bitcoin Halving in History

To understand the significance of the 2024 event, it helps to look at the full halving timeline. Each cut has roughly coincided with major shifts in the broader market cycle — though correlation isn't always causation.

  • November 28, 2012 — Block reward cut from 50 BTC to 25 BTC. Bitcoin price: around $12.
  • July 9, 2016 — Block reward cut from 25 BTC to 12.5 BTC. Bitcoin price: around $650.
  • May 11, 2020 — Block reward cut from 12.5 BTC to 6.25 BTC. Bitcoin price: around $8,600.
  • April 19, 2024 — Block reward cut from 6.25 BTC to 3.125 BTC. Bitcoin price: around $64,000.

Why the Halving Matters

The halving is built directly into Bitcoin's source code as part of its deflationary monetary policy. While fiat currencies can be printed at will, Bitcoin's total supply is capped at 21 million coins. The halving is the mechanism that enforces that scarcity on a predictable, transparent schedule.

After the 2024 event, more than 93% of all Bitcoin that will ever exist has already been mined. Only around 1.3 million BTC remains to be unlocked over the next century-plus.

What Changed for Miners After the 2024 Halving

The halving is great for long-term scarcity, but a gut punch for short-term miner economics. With revenue per block suddenly cut in half, miners had to scramble to stay profitable.

Hashrate — the total computing power securing the network — actually hit an all-time high shortly before the halving, peaking above 700 EH/s. After the event, several less efficient operations unplugged rigs, and a few publicly traded miners were forced to sell Bitcoin from their treasuries just to cover operating costs.

Profit Squeeze and Industry Consolidation

The post-halving mining landscape has been shaped by a few dominant themes:

  • Rig upgrades to next-generation ASICs with dramatically better energy efficiency.
  • Geographic shifts toward cheaper power sources, often stranded hydroelectric or flared natural gas.
  • AI pivots — several miners, including Core Scientific and Hut 8, have leaned into AI and high-performance computing to diversify revenue streams.

Smaller, older rigs simply couldn't compete. The halving didn't kill mining, but it accelerated the consolidation that's been underway for years.

Did the Price React? What History Suggests

Here's where things get juicy — or frustrating, depending on your time horizon. Historically, Bitcoin's price has rallied massively after halvings, but never immediately. The 2016 halving was followed by a parabolic run to nearly $20,000 by December 2017. The 2020 halving preceded the blow-off top near $69,000 in late 2021.

So far, the 2024 halving has been a more complicated story. Spot Bitcoin ETFs launched in January 2024, fundamentally reshaping market dynamics. Prices eventually reached new all-time highs above $100,000 later in the year, but the road there was volatile — shaped by macro conditions, Federal Reserve policy, and ETF inflows as much as supply-side math.

The halving matters, but it's no longer the only show in town. ETFs, regulation, and global liquidity now move Bitcoin at least as much as block rewards do.

When Is the Next Bitcoin Halving?

If the pattern holds, the fifth Bitcoin halving is expected around April or May 2028, at block height 1,050,000. The block reward will drop from 3.125 BTC to 1.5625 BTC.

By that point, roughly 98% of all Bitcoin will have been mined. The digital gold thesis will be tested by an asset increasingly competing with tokenized real-world assets, central bank digital currencies, and a maturing crypto derivatives market.

Key Takeaways

  • The last Bitcoin halving happened on April 19, 2024, at block 840,000.
  • The block reward dropped from 6.25 BTC to 3.125 BTC.
  • Over 93% of all Bitcoin has now been mined; only around 1.3 million BTC remains.
  • Miners faced a major profit squeeze, triggering rig upgrades and industry consolidation.
  • The next halving is projected for 2028, bringing the reward down to 1.5625 BTC.