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Mining

Bitcoin Halving 2024 Aftermath and 2028 Outlook

Published March 27, 20249 min read
MH
Written by Mohamed Habbat · Product Owner, Bitcoin Suisse

In this article

  • TL;DR
  • What the Bitcoin halving is
  • What Actually Happened at Block 840,000
  • Hash price crashed and difficulty climbed
  • How spot ETFs changed the post-halving equation
  • Industrial scale mining took over
  • Bitcoin crossed 100k in seven months
  • Where this cycle sits in the four phase map
  • What 2028 brings
  • What the 2024 Halving Proved
In this article
  • TL;DR
  • What the Bitcoin halving is
  • What Actually Happened at Block 840,000
  • Hash price crashed and difficulty climbed
  • How spot ETFs changed the post-halving equation
  • Industrial scale mining took over
  • Bitcoin crossed 100k in seven months
  • Where this cycle sits in the four phase map
  • What 2028 brings
  • What the 2024 Halving Proved

I work in the crypto self-custody space. Every four years the same conversation comes back. Will the halving pump Bitcoin. What happens to miners. When does it end. The 2024 cycle answered some of those clearly. Others moved differently than any cycle before.

On April 19, 2024, at block 840,000, the Bitcoin network did exactly what it was programmed to do. The block reward dropped from 6.25 BTC to 3.125 BTC. Miners kept hashing. The blocks kept coming. Almost everything about the post-halving environment was different from any cycle before it.

This is a retrospective on what happened, and a look forward to 2028.


TL;DR

Every 210,000 blocks (~4 years) Bitcoin's block reward drops by 50%. This is the protocol-level rule that enforces the 21-million supply cap. The 4th halving fired April 19, 2024 at block 840,000. The reward dropped from 6.25 to 3.125 BTC, and daily issuance from ~900 to ~450 BTC. The 5th halving arrives around 2028. Each halving compresses new issuance, and 2024 was the first to coincide with spot ETFs absorbing daily issuance several times over. As of 2026-05-20 the chain sits at block ~950,000 with roughly 100,000 blocks left until the next halving in 2028 (MEXC news).


What the Bitcoin halving is

The bitcoin halving is a built-in rule that cuts the reward miners receive for producing a new block by exactly 50%, triggered every 210,000 blocks, roughly every four years.

Bitcoin's total supply is capped at 21 million. The halving enforces this cap by progressively reducing the rate at which new Bitcoin enters circulation. No central bank can override it and no committee can vote it away, the rule lives in every node's consensus code.

Per Binance Academy, the full schedule reads like a compression timetable:

HalvingBlockDateReward BeforeReward AfterPrice at Block
Genesis02009-01-03n/a50 BTCn/a
1st210,0002012-11-2850 BTC25 BTC$12.35
2nd420,0002016-07-0925 BTC12.5 BTC$650.53
3rd630,0002020-05-1112.5 BTC6.25 BTC$8,821.42
4th840,0002024-04-196.25 BTC3.125 BTC$63,652.80
5th1,050,000~20283.125 BTC1.5625 BTCTBD
6th1,260,000~20321.5625 BTC0.78125 BTCTBD
7th1,470,000~20360.78125 BTC0.390625 BTCTBD

Each halving roughly halves the daily issuance, from ~900 BTC/day before April 2024 to ~450 BTC/day after. That compression is the point.


What Actually Happened at Block 840,000

Block 840,000 arrived on April 19–20, 2024 (April 19 in the US, April 20 UTC). It was the most consequential block in four years.

The reward halved exactly as programmed. At the same block, the Runes protocol launched, a fungible token standard built directly on Bitcoin's base layer and part of the broader Bitcoin Ordinals ecosystem. Demand to inscribe was immense. Block 840,000 generated over $2.4 million in transaction fees alone, briefly making fees a larger revenue source than the block subsidy itself.

For miners, it was a brief but striking glimpse of what sustaining the network on fees rather than subsidies could look like.

The halving also marked the shift in daily Bitcoin production from approximately 900 BTC/day to 450 BTC/day.


Hash price crashed and difficulty climbed

Here is the number that reveals the real stress test Bitcoin's mining industry went through in 2024. The hash price fell roughly 60% since April 2024.

By May 2025, miners were earning approximately $0.049 per terahash per second, the lowest hash price in years. Smaller operations with aging hardware and expensive energy contracts faced an impossible margin squeeze.

And yet Bitcoin's mining difficulty hit 84.37 trillion at the time of the halving and kept climbing. The 30-day mean hash rate and difficulty grew roughly 40% in the year following the halving. By May 2025, global mining difficulty had surged past 136 trillion (difficulty is dimensionless, not a hashrate unit).

That divergence has two causes. Bitcoin's price rose significantly in the same window. The miners who survived the shakeout were already scaled and optimised. Hash price measures revenue per unit of hash, so if Bitcoin doubles you can add more hardware even as hash price falls. Total hash rate climbed even as individual economics tightened.

At the halving itself, Bitcoin's total hash rate had reached 613 exahashes per second, a pre-halving peak that set the baseline for everything that followed. By May 2026 the network was running at roughly 980 exahashes per second with difficulty above 136 trillion, about 60% above the pre-halving peak set at block 840,000 (blockchain.info/q/hashrate).


How spot ETFs changed the post-halving equation

Every previous halving played out with the same actors. Retail speculators, early adopters, a thin institutional layer. The 2024 halving was structurally different.

The Bitcoin spot ETF launched in the United States in January 2024, three months before the halving (see Bitcoin ETFs for a full breakdown). BlackRock's IBIT and Fidelity's FBTC became the fastest-growing ETF products in history. Bitcoin spot ETFs collectively accumulated more than $68 billion in net inflows, with US spot ETFs absorbing roughly five times daily issuance through net inflows during the post-halving window.

The supply shock of the halving collided with the demand surge of institutional entry. In 2020, the halving reduced daily issuance from ~1,800 BTC/day to ~900 BTC/day against primarily retail demand. In 2024, ETFs alone were absorbing hundreds of BTC per day in net inflows. That confluence, not the halving alone, is what drove the post-halving price action.

If you're looking to buy Bitcoin in Switzerland, see our guide on how to buy Bitcoin in Switzerland for the most direct options.


Industrial scale mining took over

The post-halving environment accelerated a structural shift that had been building since 2020. The industrialisation of Bitcoin mining.

Smaller miners who couldn't reduce energy costs or upgrade hardware were squeezed out. Energy costs can now comprise up to 80% of operational expenses for miners post-halving. Operations in Oman and the UAE benefit from subsidised energy at $0.035 to $0.07/kWh, a structural advantage smaller Western miners cannot match.

Public miners showed how tight margins had become. Riot Platforms (NASDAQ: RIOT) sold $38.8 million in BTC in December 2024 to cover operational costs. Marathon Digital (NASDAQ: MARA) kept acquiring operations as smaller miners sold. CleanSpark expanded aggressively.

Bitmain's Antminer S21+ and MicroBT's WhatsMiner M66S+ became the critical post-halving machines. Miners running older S19-era hardware found the economics increasingly untenable.

One adaptation worth noting. Some operations began repurposing infrastructure for AI computing. The same large-scale power and cooling that supports Bitcoin mining can be redirected to GPU clusters for AI training. The halving accelerated a diversification that had been quietly building.


Bitcoin crossed 100k in seven months

In every previous halving cycle, the supply reduction took 12 to 18 months to fully manifest in price. The 2024 cycle was faster.

Bitcoin crossed $100,000 for the first time in late 2024, less than seven months after the halving. The factors were unusually legible. Reduced daily issuance hit a market with $68B+ in institutional inflows against improving macro conditions.

In 2020, the same supply reduction with minimal institutional demand drove the run to $69,000 over 18 months. In 2024, the ETF compressed that timeline dramatically.

The 2012 halving preceded an 11,000% gain. 2016 produced ~2,850%. 2020 yielded roughly 700%. Returns compressed as Bitcoin's market cap grew. The 2024 cycle, still delivering a $100,000 milestone, was exceptional in absolute terms even if percentage gains were smaller.


Where this cycle sits in the four phase map

Erik Anderson's four-year cycle cheatsheet maps Bitcoin into four roughly one-year phases. Accumulation when media calls Bitcoin dead and smart money builds positions quietly. Early growth when the recovery starts and the crowd has not noticed. Expansion when the headlines turn euphoric and everyone is talking about it. Contraction when the cycle resets and sitting in cash becomes the strategy.

Cycle map for the post-2024 period: 2024 to 2025 was recovery and growth, ETF approval, halving event, Bitcoin past 100k. 2026 sits between expansion and an early contraction signal depending which on-chain indicator you trust. The 2028 halving probably catches the next accumulation low rather than the top.

The point of this framework is not prediction. It is positioning. If you understand which phase you are in, you stop reacting to headlines and start acting on plan.


What 2028 brings

The fifth Bitcoin halving is expected at block 1,050,000, approximately in 2028. The block reward drops from 3.125 BTC to 1.5625 BTC. Daily issuance falls to ~225 BTC/day.

Several dynamics from 2024 will define how 2028 plays out:

  • ETFs are structural, not cyclical. BlackRock and Fidelity's products will not disappear. Institutional demand enters 2028 from a much larger base.
  • Miner consolidation is effectively complete. The shakeout accelerated by 2024 leaves fewer weak hands. By 2028, a smaller number of large-scale operations dominate.
  • Transaction fees must eventually carry more weight. At 1.5625 BTC per block, the subsidy is a fraction of Bitcoin's early years. The Runes launch at block 840,000 briefly illustrated what a fee-dominant future could look like.

The 2028 halving will also occur against a backdrop of much clearer global Bitcoin regulation, and an institutional landscape significantly more developed than what existed when the ETF launched.


What the 2024 Halving Proved

Two years on, the 2024 halving has a clear lesson. Bitcoin's monetary policy is not theoretical. It is a functioning, self-executing system that has now survived four supply reductions without exception or override.

The reward halved. Miners adapted. The network continued. Hash rate grew. Bitcoin's first supply reduction in the institutional era demonstrated something prior cycles never could. Even with $68B+ in ETF demand colliding with reduced issuance, the protocol stayed indifferent. It runs regardless.

The 2028 halving will prove it again.


This post is a market retrospective and a positioning framework, not investment advice. Past halving cycles do not predict future Bitcoin price action. Hash rate, difficulty, ETF flows and miner economics change daily. Verify every figure against the cited primary sources before acting on them. Talk to a FINMA-registered advisor or Swiss-licensed Steuerberater before deploying material capital.


Thinking about holding Bitcoin in Switzerland? Understand the tax implications first, read our guide on Bitcoin and Swiss taxes.


Sources:

  • ProShares: Bitcoin Halving 2024
  • Forbes Advisor CA: Bitcoin Halving Event 2024
  • CoinGeek: Bitcoin Halving Aftermath
  • Fidelity Digital Assets: 2024 Bitcoin Halving One Year Later
  • Investopedia: Bitcoin Halving
  • WorldMetrics: Bitcoin Mining Statistics
  • AInvest: Bitcoin Price Outlook 2025–2026
  • Binance Academy: Bitcoin Halving Date
  • MEXC News: Bitcoin Halving Nears With 100,000 Blocks Left
  • Erik Anderson: Four-Year Cycle Cheatsheet PDF
  • blockchain.info hashrate

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Frequently Asked Questions

What is a Bitcoin halving?+
Every 210,000 blocks (~4 years) Bitcoin's block reward drops by 50%, the protocol-level mechanism that enforces the 21-million supply cap. The 4th halving fired on April 19, 2024 at block 840,000, dropping the reward from 6.25 BTC to 3.125 BTC.
When is the next Bitcoin halving?+
Block 1,050,000, projected for early-to-mid 2028 at current ~10-minute average block times. The reward will drop from 3.125 BTC to 1.5625 BTC, cutting daily issuance from ~450 BTC to ~225 BTC.
Why does Bitcoin halve?+
Halvings enforce Bitcoin's fixed supply schedule. The 50% reduction every 210,000 blocks asymptotes total supply at 21 million BTC by ~2140. The schedule is hard-coded in Bitcoin Core's consensus rules and cannot be changed without a contentious hard fork the entire network would have to accept.
Does the halving cause Bitcoin's price to rise?+
Historically, the year following each halving (2012, 2016, 2020, 2024) coincided with major price expansion, but the halving itself is fully priced-in by the time it occurs. The post-halving moves correlate more with macro liquidity cycles and demand catalysts (spot ETF approvals in Jan 2024) than the issuance change alone.
What happens to miners after each halving?+
Block reward subsidy drops 50% but transaction fees do not, so miners with the lowest power costs survive. Older ASICs (S19, M30S) shut off; newer hardware (S21 Pro, M50S+) and stranded-energy operations gain market share. Per Binance Academy, the hash rate typically sees short-term fluctuation around halvings as less efficient operators shut down, but has historically recovered and grown over subsequent months.
How was the 2024 halving different?+
First halving with spot Bitcoin ETFs already operating. By April 2024, US spot ETFs were absorbing roughly five times daily issuance through net inflows. The supply-demand asymmetry was structural, not just narrative. It was also the first halving where MicroStrategy and other corporate treasuries were actively buying.
When does Bitcoin stop being mined?+
Block subsidy reaches zero around 2140, at which point all 21 million BTC are in circulation. From then on, miners earn only transaction fees. Some forecasts (Coinmetrics, Cambridge Bitcoin Electricity Consumption Index) project the fee market becoming the dominant miner revenue source within the next 2 to 3 halving cycles.
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In this article

  • TL;DR
  • What the Bitcoin halving is
  • What Actually Happened at Block 840,000
  • Hash price crashed and difficulty climbed
  • How spot ETFs changed the post-halving equation
  • Industrial scale mining took over
  • Bitcoin crossed 100k in seven months
  • Where this cycle sits in the four phase map
  • What 2028 brings
  • What the 2024 Halving Proved
In this article
  • TL;DR
  • What the Bitcoin halving is
  • What Actually Happened at Block 840,000
  • Hash price crashed and difficulty climbed
  • How spot ETFs changed the post-halving equation
  • Industrial scale mining took over
  • Bitcoin crossed 100k in seven months
  • Where this cycle sits in the four phase map
  • What 2028 brings
  • What the 2024 Halving Proved
MH
Mohamed Habbat

Product Owner, Bitcoin Suisse

Product Owner at Bitcoin Suisse. Wrote this book over five years of researching Bitcoin — because he needed the answers himself.

About the author
Go deeper

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BTC2H₿₿2H

Next Bitcoin halving

Live
681D
10H
10M
00S

Blocks remaining

98,125

Target block

1,050,000

Reward now

3.125 BTC

Reward after

1.5625 BTC

Estimated halving date Apr 12, 2028, 3:12 AM UTCLast block 951,875 from mempool.space updated 0s ago