Bitcoin Halving 2028: The Complete Guide

Sometime in April 2028, Bitcoin will mine its one-millionth and fifty-thousandth block. The second that block is confirmed, the reward paid to the miner who found it will drop from 3.125 BTC to 1.5625 BTC. That event has a name: the Bitcoin halving. It will be the fifth time in Bitcoin's history that its block reward has been cut in half, and it will happen whether markets are up, whether governments approve, or whether anyone is paying attention. The code simply runs.

This guide covers everything you need to know about the 2028 halving: when it happens, what has changed in every previous cycle, what it does to miners and prices, and how to think about it as an investor. If you want the live countdown to block 1,050,000, you can track it in real time on our Bitcoin Halving Countdown.

What the Bitcoin Halving Is

Bitcoin has a fixed supply of 21 million coins. No central bank, no government, and no company can change that number. What keeps it fixed is a rule written into the Bitcoin protocol: every 210,000 blocks, the reward paid to miners for adding a new block to the chain is cut exactly in half.

When Satoshi Nakamoto launched Bitcoin in January 2009, miners received 50 BTC for every block they found. At roughly one block every 10 minutes, that meant 7,200 BTC entered circulation each day. The halving schedule was designed to reduce that flow steadily over time until all 21 million coins are in circulation, which will happen around the year 2140.

The mechanism is not managed by anyone. It is not a policy decision. Bitcoin nodes count blocks, and when the count crosses a multiple of 210,000, every node on the network enforces the lower reward simultaneously. A miner who tries to claim the old reward after a halving will have their block rejected by every other node. The rule is enforced by consensus, which means it is enforced by thousands of independent computers around the world with no central point of failure.

This is what separates Bitcoin's monetary policy from every government currency in history. The supply schedule is auditable, predictable, and immutable. Every person running a Bitcoin node is verifying it in real time.

Every Previous Bitcoin Halving: What Happened

First Halving: November 28, 2012 — Block 210,000

The first halving reduced the block reward from 50 BTC to 25 BTC. Bitcoin was barely three years old. The price at the time of the halving was approximately $12. Most people outside a small group of cryptographers and libertarian technologists had never heard of it.

The year that followed changed that. By November 2013, one year after the first halving, Bitcoin was trading above $1,000 for the first time. That is an 8,200% price increase in 12 months. The halving did not cause this directly or instantly. Markets took time to reprice the new supply reality. But the supply shock created the conditions for one of the most dramatic price increases in the history of any asset.

Second Halving: July 9, 2016 — Block 420,000

The second halving cut the reward from 25 BTC to 12.5 BTC. The price on that day was approximately $650. The 2016 halving was more anticipated than the first. Bitcoin was no longer obscure. The Wall Street Journal had covered it. A wave of venture capital had funded the first generation of exchanges and wallets.

The peak of the following cycle came in December 2017, when Bitcoin crossed $19,700. The 18-month rally from the halving to the cycle peak produced a gain of roughly 2,900%. The crash that followed was severe, dropping Bitcoin below $3,200 by December 2018.

Third Halving: May 11, 2020 — Block 630,000

The reward dropped from 12.5 BTC to 6.25 BTC. The halving occurred during one of the most unusual economic moments in modern history. Three months earlier, Bitcoin had crashed from $9,000 to $3,800 in a single week when COVID-19 triggered a global market panic. By the time the halving arrived, Bitcoin had recovered to approximately $8,600.

The 2020 to 2021 cycle was the first in which institutional money entered Bitcoin in a significant way. MicroStrategy began buying Bitcoin for its treasury in August 2020. Square followed. In late 2020, PayPal enabled Bitcoin purchases for all US accounts. The narrative shifted from "digital gold for cypherpunks" to "institutional store of value." Bitcoin peaked at $68,700 in November 2021.

Fourth Halving: April 19, 2024 — Block 840,000

The fourth halving cut the reward from 6.25 BTC to 3.125 BTC. The price at the time was approximately $63,700. This halving was the first to occur after the approval of US spot Bitcoin ETFs, which went live in January 2024 and accumulated more than $10 billion in assets within weeks. The 2024 halving was the most watched and most traded halving in Bitcoin's history.

Bitcoin reached a new all-time high above $100,000 in the months that followed. By early 2025, it had traded above $108,000. The institutional infrastructure that built up around the fourth halving will remain fully in place for the fifth.

When Is the 2028 Bitcoin Halving?

The fifth halving will occur at block 1,050,000. Based on the current pace of block production, the best estimate puts the date in April 2028, though the exact date will not be known until the block is actually mined.

Bitcoin's difficulty adjustment mechanism recalibrates every 2,016 blocks, roughly every two weeks, to keep average block time as close to 10 minutes as possible. If miners collectively add more computing power to the network, blocks come faster and the difficulty increases to slow them down. If miners drop off, blocks slow down and difficulty decreases. This means the halving date drifts forward or backward depending on network hashrate.

Over the past two years, Bitcoin's hashrate has been trending upward as mining has become increasingly industrialized. Faster block times could push the halving slightly earlier than April 2028. But the estimate will not become precise until the final few thousand blocks before 1,050,000 are mined.

The most accurate estimate at any given moment is the one that uses live block height data, which is exactly what our Bitcoin Halving Countdown tracks.

What Changes at Block 1,050,000

The numbers are straightforward. The block reward drops from 3.125 BTC to 1.5625 BTC. With 144 blocks mined per day on average, the network will issue 225 BTC per day after the halving, down from 450 BTC per day today.

At the time of the halving, approximately 20,343,750 BTC will have been mined. That is 96.87% of the 21 million total supply. Of the remaining 656,250 BTC left to mine, nearly all of it will take over 100 years to produce. The schedule is heavily weighted toward the early years.

This is the core of the halving's effect on supply. The argument is simple: if the number of new coins entering the market drops by half while demand stays the same, price must rise to clear the market. History has born this out in every cycle so far. Whether it continues to do so depends on factors well beyond the halving mechanism itself.

Why the 2028 Halving Is Different from Every Previous One

Every halving has occurred in a different market context. The 2028 halving will be unlike the previous four in several specific ways.

Spot ETFs Are Now Established Infrastructure

The US spot Bitcoin ETFs that launched in January 2024 have fundamentally changed how institutional capital accesses Bitcoin. By mid-2025, BlackRock's iShares Bitcoin Trust had become one of the fastest-growing ETF products in the history of financial markets. Pension funds, endowments, registered investment advisors, and family offices can now hold Bitcoin through the same brokerage infrastructure they use for equities and bonds.

In previous cycles, institutional demand was constrained by operational complexity: custody, legal approval, board sign-off. Those barriers have been substantially lowered. The 2028 halving will be the first where fully institutionalized demand meets a supply shock.

Transaction Fees Are Growing as a Share of Miner Revenue

After each halving, miners receive less BTC from the block subsidy. Their long-term survival depends increasingly on transaction fees. The fourth halving brought this dynamic into focus: on the day of the halving itself in April 2024, transaction fees spiked dramatically due to Runes protocol activity, and some blocks earned more in fees than in subsidy.

This is the model Bitcoin's long-term security depends on. The 2028 halving, which reduces the subsidy to 1.5625 BTC, will accelerate the transition. Miner revenue will increasingly reflect actual network usage rather than the subsidy schedule. A Bitcoin network with high fee revenue is one that can sustain security without the subsidy indefinitely. The 2028 cycle will be a significant test of whether that transition is on track.

Mining Is Now a Publicly Traded Industry

In 2012, Bitcoin mining was done on home computers. In 2016, it was done in warehouses with specialized hardware. By 2028, it will be dominated by publicly listed companies like Marathon Digital, Riot Platforms, and CleanSpark, alongside large private operations. These companies have shareholders, debt obligations, and quarterly reporting requirements. They cannot simply shut down when margins compress. They manage forward contracts, hedge with derivatives, and raise capital from institutional investors.

This industrialization means the post-halving hashrate volatility that characterized previous cycles will likely be smaller and shorter. Large listed miners have the balance sheets to absorb a difficult quarter. Smaller, less efficient operators will still exit, but the network will not experience the kind of sustained hashrate collapse that followed the 2020 halving.

More Countries Hold Bitcoin at the State Level

El Salvador adopted Bitcoin as legal tender in 2021. In 2024, the US government held tens of thousands of Bitcoin seized from criminal operations and began moving toward a strategic reserve framework. Other countries followed. By 2028, state-level Bitcoin accumulation will be a factor that did not exist in previous cycles. Sovereign buyers do not trade in and out on quarterly sentiment. They buy and hold at scale.

What the 2028 Halving Means for Bitcoin Miners

Every halving is a shock to miner economics. The revenue per block drops 50% overnight. For any miner whose cost of producing a Bitcoin is above the post-halving price, continued operation is loss-making. The weakest operations exit, hashrate falls, difficulty adjusts downward, and the miners who remain find their margins restored.

This cycle has repeated itself after every halving without exception. The question for 2028 is how severe the initial shock will be and how long recovery takes.

The Break-Even Price Problem

Miners have two primary costs: hardware (amortized over its useful life) and electricity. Electricity is the dominant ongoing expense. The average all-in cost to mine one Bitcoin varies widely by geography: industrial operations in regions with cheap hydro or flare gas can mine profitably at prices well below $30,000, while smaller operations with grid electricity may need prices above $80,000 to survive.

After the halving cuts the subsidy to 1.5625 BTC per block, any miner whose break-even price exceeds the market price at that moment faces a choice: operate at a loss and hope for price recovery, or shut down. The miners who survive are those who built their operations around low energy costs, not around a high subsidy.

The ASIC Upgrade Cycle

Each halving is preceded by a wave of next-generation mining hardware hitting the market. Manufacturers like Bitmain, MicroBT, and Canaan typically release new ASIC generations 12 to 18 months before a halving. The leading hardware in 2027 will deliver significantly better joules-per-terahash efficiency than 2024 machines. Miners who upgrade in time can reduce their electricity cost per Bitcoin substantially, partially offsetting the halving's revenue impact.

The operators who fail are typically those who delayed hardware upgrades, took on debt to finance expansion at cycle peaks, or locked in electricity contracts at unfavorable rates. The halving is not random adversity. It is scheduled 4 years in advance. Operators who are caught unprepared by it have made choices that led to that outcome.

The Long-Term Picture: Fee Revenue

The halving schedule eventually converges to zero subsidy. Bitcoin's security after that point depends entirely on transaction fees. The 2028 halving pushes that transition forward. The argument for Bitcoin's long-term security model is that a network valuable enough to transact on will generate enough fee revenue to make mining profitable without any subsidy. Whether that is true at a 1.5625 BTC subsidy level will not be known until the data is in.

Bitcoin Halving and Price: What the Data Actually Shows

The pattern across the four previous halvings is consistent: Bitcoin reaches a new all-time high roughly 12 to 18 months after each halving. The magnitude of the gain has decreased with each cycle as the market cap has grown. An 8,000% gain from $12 to $1,000 is much easier to achieve than an 8,000% gain from $63,700 to $5 million. That the gains have moderated is not a failure of the model. It is a natural consequence of scale.

What the data does not show is that the halving itself is a mechanical buy trigger. The timing between halving and peak varies. The macro environment matters. In 2020, a collapsing dollar and near-zero interest rates amplified the halving's effect. In 2024, spot ETF inflows arrived months before the halving and may have front-run some of the supply shock.

The honest framing is this: the halving structurally reduces new supply. If demand is flat or growing, basic economics says price rises. But Bitcoin does not exist in a vacuum. Regulatory crackdowns, exchange failures, macroeconomic contractions, and changes in risk appetite can all delay or derail a post-halving rally. The halving creates the conditions for a price increase. It does not guarantee one.

The Stock-to-Flow Model

The stock-to-flow model, popularized by analyst PlanB around 2019, attempts to quantify the relationship between Bitcoin's scarcity and its price. It measures how many years of production at current rates it would take to double the existing supply. After the 2028 halving, Bitcoin's stock-to-flow ratio will be approximately 120, meaning it would take 120 years of production at 1.5625 BTC per block to double the existing supply. Gold's ratio is approximately 60.

The model has attracted serious criticism, particularly for its precise price predictions, which have repeatedly missed. But the underlying insight, that scarcity has value and increasing scarcity tends to increase price, is consistent with how every previous halving has played out.

How to Think About the 2028 Halving as an Investor

The halving is well known. Every person who pays attention to Bitcoin has known since 2020 that block 1,050,000 would trigger the next halving. The question of whether the halving is "priced in" is one of the most debated in Bitcoin markets.

The 2024 experience is instructive. Bitcoin reached a new all-time high above $69,000 before the halving occurred, then traded sideways for months afterward before resuming its upward trend. ETF demand front-ran the supply shock. The halving itself was almost a non-event in terms of immediate price impact. The rally came, but on its own schedule.

Dollar Cost Averaging Around the Halving

For long-term investors who believe in Bitcoin's supply mechanics, the period 12 to 18 months before a halving has historically been a reasonable accumulation window. Prices are typically below the cycle peak but trending upward as anticipation builds. Spreading purchases across this window reduces the risk of buying at the top of pre-halving excitement.

The period immediately after a halving has been volatile in both directions. The initial weeks can bring selling as miners liquidate more Bitcoin to cover costs at reduced revenue. Patient buyers who understand the mechanics have historically been rewarded for that patience.

What to Watch in 2027

The 12 months before block 1,050,000 will give clear signals about how the fifth cycle is developing. Watch for: the pace of ETF inflows and whether they are accelerating; the health of the mining industry as measured by hashrate and publicly disclosed miner margins; any significant regulatory developments in the US or EU; and macro factors including Federal Reserve policy, dollar strength, and global risk appetite.

None of these factors will tell you exactly what happens after the halving. But they will tell you whether the conditions that amplified previous post-halving rallies are present or absent.

The Supply Math: How Close Is Bitcoin to Its Cap?

The 21 million cap is Bitcoin's most cited property, but the numbers behind it are worth understanding precisely. At the time of the fifth halving, approximately 20,343,750 BTC will have been issued. That is 96.87% of the total supply. Only 656,250 BTC remain to be mined over the following century.

The production schedule is asymptotic. After the fifth halving, daily issuance drops to 225 BTC. After the sixth halving in 2032, it drops to roughly 112.5 BTC per day. By 2036, it will be approximately 56 BTC per day. The scarcity curve gets steeper with every cycle.

There is also the question of lost coins. Researchers estimate that between 3 and 4 million Bitcoin are permanently inaccessible, lost in wallets with forgotten keys or sent to unspendable addresses. The real circulating supply is likely closer to 15 to 16 million than the 20 million nominally mined. This makes Bitcoin's effective scarcity more extreme than the raw supply numbers suggest.

What Happens After the Last Bitcoin Is Mined

The last Bitcoin will not be mined until approximately 2140. The halving schedule ensures this. After the 32nd halving, around 2036, the block reward will fall below one satoshi (0.00000001 BTC) and will effectively round to zero. From that point on, miners will only earn transaction fees.

This raises a long-term security question that Bitcoin economists debate seriously: will fee revenue alone be sufficient to keep miners economically motivated to secure the network? The counterargument to concern is that Bitcoin's fee market is dynamic. Higher transaction volume, more complex transaction types (like inscriptions, Runes, and Lightning channel opens), and potentially higher Bitcoin prices in absolute dollar terms could all contribute to a robust fee market even with no subsidy.

The 2028 halving does not resolve this question. But each successive halving makes it more relevant and pushes the network closer to the point where the answer will be tested in practice.

The Bottom Line on the 2028 Bitcoin Halving

The fifth Bitcoin halving at block 1,050,000 is one of the most predictable events in global finance. The block target is fixed. The supply math is transparent. The historical pattern is documented across four previous cycles. What is not predictable is the exact timing, the price level at which it occurs, or the macro environment surrounding it.

What history does support: the halving has preceded a new all-time high in every previous cycle. The mechanics that produced that outcome, reduced new supply meeting growing institutional demand, will be more powerful in 2028 than they have ever been. The spot ETF infrastructure now in place means demand-side access to Bitcoin is no longer a barrier for any serious institution.

How the fifth cycle plays out will depend on factors that will not be known until 2027 and 2028. In the meantime, you can track the live countdown to block 1,050,000 on our Bitcoin Halving Countdown page, which updates in real time from the Bitcoin network.