Every four years or so, the Bitcoin network pulls off one of the most anticipated events in crypto: the halving. It slashes the reward miners earn for securing the blockchain in half, and every single time it happens, the market braces for fireworks. So when was the last Bitcoin halving, and what did it actually do?

The most recent Bitcoin halving took place on April 19–20, 2024, depending on your time zone, when the network mined block 840,000. In a flash, the block reward dropped from 6.25 BTC to 3.125 BTC, tightening the supply of new coins hitting circulation.

The 2024 Halving at a Glance

The April 2024 halving was the fourth in Bitcoin's history and arguably the most-watched one yet. With Bitcoin trading near all-time highs heading into the event, anticipation was running wild across crypto Twitter, mining forums, and Wall Street desks alike.

Here are the headline numbers:

  • Date: April 19–20, 2024
  • Block height: 840,000
  • Pre-halving reward: 6.25 BTC per block
  • Post-halving reward: 3.125 BTC per block
  • New daily issuance: roughly 450 BTC (down from 900)

The cut happened silently, the way Bitcoin likes it — no boss flipped a switch. Miners around the world simply woke up to half the revenue they had the day before, and the protocol kept chugging along.

Bitcoin Halving History: A Full Timeline

Bitcoin's pseudonymous creator, Satoshi Nakamoto, baked the halving into the code from day one. The idea was simple: as time goes on, new Bitcoin becomes scarcer until only 21 million will ever exist. So far, the network has hit that milestone four times.

The Four Halvings So Far

  • November 28, 2012 — Block 210,000. Reward cut from 50 BTC to 25 BTC. Bitcoin's first halving, barely noticed outside the early cypherpunk crowd.
  • July 9, 2016 — Block 420,000. Reward cut from 25 BTC to 12.5 BTC. By now, BTC had graduated from a niche experiment to a recognized asset class.
  • May 11, 2020 — Block 630,000. Reward cut from 12.5 BTC to 6.25 BTC. This one landed smack in the middle of COVID-era stimulus mania, and the bull run that followed was legendary.
  • April 19–20, 2024 — Block 840,000. Reward cut from 6.25 BTC to 3.125 BTC. The current setup.

Each halving has occurred roughly every 210,000 blocks, which works out to about four years given Bitcoin's 10-minute average block time. Don't set your watch to the calendar though — minor variations in block production can nudge the date by a few days.

Why Halvings Matter for Price and Supply

Halvings are basically Bitcoin's built-in shock absorber for inflation. Every four years, the rate of new supply entering the market is cut in half, while demand tends to grow steadily. That mismatch is the heart of why halvings are treated as macro catalysts by traders and long-term holders alike.

Here's what tends to happen on a structural level:

  • Supply shock: Daily new BTC issuance drops sharply, reducing the amount of sell pressure miners can apply to the market.
  • Miner squeeze: Less revenue per block forces less efficient miners offline, eventually rebalancing the hash rate.
  • Post-halving rallies: Historically, Bitcoin has gone on major bull runs in the 12–18 months following each halving, though past performance is no guarantee of future results.
The halving doesn't promise a price moonshot. It just makes new Bitcoin scarcer. What the market does with that is anyone's guess.

It's worth pointing out that the 2024 halving differed from previous cycles in one big way: the launch of spot Bitcoin ETFs in the United States earlier that year created a brand-new wave of institutional demand right around the time the supply tightened. Many analysts argue this was the first truly "institutional" halving cycle.

What's Next: The 2028 Halving Outlook

If the pattern holds, the next Bitcoin halving is expected to occur sometime in 2028, when the block reward drops from 3.125 BTC to 1.5625 BTC. By that point, more than 93% of all Bitcoin will have been mined, putting the network firmly into "scarce asset" territory.

After that, the cycle continues roughly every four years:

  • 2028: 3.125 BTC → 1.5625 BTC
  • 2032: 1.5625 BTC → 0.78125 BTC
  • 2036: 0.78125 BTC → 0.390625 BTC

The final Bitcoin — the very last satoshi — is not expected to be mined until around the year 2140. Yes, you read that right. Patience is the entire point.

Key Takeaways

  • The last Bitcoin halving happened on April 19–20, 2024, at block 840,000.
  • It cut the block reward from 6.25 BTC to 3.125 BTC, halving the rate of new supply.
  • It was the fourth halving in Bitcoin's history, following events in 2012, 2016, and 2020.
  • Halvings create a supply shock that has historically preceded major bull runs, though each cycle is unique.
  • The next halving is expected in 2028, taking the reward down to 1.5625 BTC.

Whether you're a trader hunting the next parabolic move or a long-term believer stacking sats for the next decade, the halving cycle is the rhythm of Bitcoin. Miss it at your own risk.