Short answer
- Yes, Bitcoin can still be mined, because mining is part of how the Bitcoin network itself works. Miners still compete to add new blocks of transactions to the blockchain, and the successful miner still receives a block reward made up of newly issued bitcoin plus transaction fees. What has changed is who can compete on equal terms. In the early years, an ordinary home computer had a realistic chance of winning a block. Today the network is dominated by specialized machines and large operations, and an ordinary personal computer contributes such a small share of total computing power that winning a block on its own is extremely unlikely. So the honest answer has two parts. Technically, mining remains open to anyone who runs compatible hardware and software and follows the network rules. Practically, mining is now an industrial scale activity for most participants, a pooled activity for smaller miners, or a learning experiment for hobbyists. Whether any particular setup covers its costs depends on electricity price, hardware efficiency, fees, and other local factors, and those factors change over time. This guide explains the system without promising a profit, because no honest general guide can promise one.
What Bitcoin Mining Actually Does
Bitcoin has no central bank, no company headquarters, and no single server that approves payments. Instead, thousands of computers around the world follow the same set of rules and keep copies of the same public ledger, the blockchain. Mining is the process that adds new pages, called blocks, to that ledger and keeps everyone working from the same version of it.
A useful way to picture it is to think of a public notebook that anyone can read but that only gains a new page when a difficult puzzle is solved. Transactions waiting to be confirmed sit in a kind of waiting area. A miner gathers some of those transactions into a candidate block, then works through a computational puzzle tied to that block. The first miner to find a valid answer broadcasts the block to the network. Other computers, called nodes, check the block independently. If the block follows the rules, nodes accept it and start building on top of it. If it breaks a rule, they reject it, no matter how much computing work went into it.
That checking step matters more than the popular image of mining suggests. Mining is often described as solving complex puzzles, and that is true as far as it goes. But the puzzle alone does not make a transaction valid. A miner cannot invent bitcoin out of thin air, spend coins that do not exist, or rewrite someone else’s payment simply by working harder. The network rules limit how much new bitcoin a block may create, and nodes enforce those rules on every block they receive.
Proof of Work in Plain English
The system Bitcoin uses is called proof of work. The name describes the idea: a miner proves that real computational work was done by presenting an answer that could only be found, in practice, by trying many possibilities.
In Bitcoin, that work uses a cryptographic function called SHA-256. A miner takes the header of a candidate block, which includes a reference to the previous block, a summary of the transactions in the block, a timestamp, and a number called a nonce, and runs it through double SHA-256 to produce a hash, a fixed length string of characters. The network sets a target, and a block is valid only if its hash is at or below that target. Because SHA-256 output is effectively unpredictable, the only practical way to find a qualifying hash is to try nonce after nonce until one works. That trial and error is the work.
The ten minute figure is a target average, not a timer. Some blocks arrive a minute apart, and some take much longer. The network keeps the average near ten minutes through a mechanism called difficulty adjustment, explained below. The key point for a reader is that mining does not produce a steady paycheck in the way a job does. Even a well equipped miner wins blocks irregularly, and smaller miners may wait a very long time between wins unless they join a pool.
Difficulty: Why the Puzzle Gets Harder or Easier
If the puzzle stayed at a fixed difficulty, adding more miners would make blocks arrive faster and faster, and new bitcoin would be issued faster than planned. Bitcoin avoids that with an automatic adjustment. Every 2,016 blocks, which works out to roughly two weeks at the ten minute target, the network recalculates difficulty based on how quickly those blocks were actually found.
If blocks came faster than ten minutes on average, difficulty rises, so finding a valid hash takes more tries. If blocks came slower, difficulty falls, so valid hashes are easier to find. This keeps the block interval near the target no matter how much computing power joins or leaves the network. It also means that a miner’s odds depend not only on their own machines but on the total power competing against them. A setup that was competitive last year can become uncompetitive if total network power grows while that setup stays the same.
Difficulty is often reported as a very large number, and network power is reported in units such as exahashes per second or zettahashes per second. Those units can be confusing, so it helps to keep the meaning simple. Hashrate is total computing power. Difficulty is how hard the puzzle is at a given time. Both move, and both should be treated as snapshots with a date, not as permanent facts. For example, a CoinDesk report dated 31 October 2026 put network hashrate at about 1.09 zettahashes per second, little changed from about 1.13 zettahashes per second a year earlier. A separate report from early 2026 put network difficulty at a record 144.4 trillion in February 2026. Those two snapshots describe different moments, and neither should be quoted as today’s figure without a fresh check.
The Block Reward, Halvings, and the 21 Million Cap
A miner who wins a block receives two things: a subsidy of newly created bitcoin, and the transaction fees attached to the transactions in that block. The subsidy is the part that changes on a fixed schedule. It started at 50 bitcoin per block when Bitcoin launched in 2009, and it halves every 210,000 blocks, roughly every four years. The sequence so far is:
| Period | Subsidy per block |
|---|---|
| 2009 to 2012 | 50 bitcoin |
| 2012 to 2016 | 25 bitcoin |
| 2016 to 2020 | 12.5 bitcoin |
| 2020 to 2024 | 6.25 bitcoin |
| 2024 to about 2028 | 3.125 bitcoin |
The most recent halving took place in April 2024, at block 840,000, cutting the subsidy from 6.25 bitcoin to 3.125 bitcoin. The next halving is expected in about 2028, when the subsidy would fall to 1.5625 bitcoin, but the exact calendar date depends on how quickly blocks are found, so it should be described as expected, not fixed to a day.
The subsidy schedule also explains the famous 21 million cap. Bitcoin’s rules limit total supply to 21 million coins. More than 20 million coins, about 95 percent of the total, had already been issued by the mid 2020s, and the remaining coins will be released ever more slowly until issuance ends in about 2140. After that point, if the network continues, miners would be paid only from transaction fees, because no new coins would remain to be issued. That distant future is not a practical planning horizon for a home miner today, but it is part of why the system is described as having a fixed supply schedule: the rules do not allow an authority to print more bitcoin beyond the cap.
The Hardware Eras: From Home Computers to Specialized Machines
Bitcoin mining hardware has gone through distinct eras, and each era made the previous one uncompetitive for Bitcoin specifically. Understanding these eras explains why advice from the early 2010s no longer applies.
In the first era, ordinary central processing units, the CPUs in desktop computers, could mine competitively. The network was small, difficulty was low, and a home computer could win blocks regularly. That era ended as more people joined and difficulty rose.
In the second era, graphics processing units, or GPUs, took over. GPUs can perform many similar calculations in parallel, which suits the repeated hashing that mining requires, so they were far more effective than CPUs for this task. For a time, GPU mining rigs built from several graphics cards were the standard for serious hobbyists.
A brief field programmable gate array, or FPGA, era sat between GPU and ASIC mining, using reprogrammable chips more efficient than GPUs.
The current era belongs to application specific integrated circuits, usually shortened to ASICs. An ASIC is a chip designed to do one job, in this case computing SHA-256 hashes for Bitcoin, as efficiently as possible. A modern Bitcoin ASIC does nothing else. It cannot run games, browse the web, or mine a different kind of coin that uses a different algorithm, at least not with the same efficiency. What it can do is produce far more hashes per watt of electricity than a CPU or GPU, and that efficiency is decisive when electricity is the largest ongoing cost.
Solo Mining, Pool Mining, and Hosted Mining
Once hardware is understood, the next question is how a miner actually participates. There are three broad patterns, and they suit very different goals.
Solo mining means running your own hardware independently and keeping the full block reward if you win a block. The advantage is clear: no sharing, no pool fee, full control. The disadvantage is equally clear: for a small miner, winning a block can take an extremely long time, because the miner’s share of total network power is tiny. Solo mining is best understood as a lottery ticket model. A small solo miner might mine for years without winning, then win a whole block at once. That irregularity makes solo mining a poor fit for anyone who needs regular returns, and it is one reason pools exist.
Pool mining means combining computing power with many other miners and sharing rewards in proportion to the work each miner contributed. When the pool wins a block, the reward is split among participants, minus a pool fee. The fee amount varies by pool and by payout method, so readers should check the terms of any specific pool rather than relying on a single typical figure. The advantage of a pool is steadier, smaller payouts instead of rare, large ones. A small miner in a pool can receive regular small amounts rather than waiting indefinitely for a solo win. The disadvantage is dependence on the pool operator, exposure to pool fees, and the need to trust the pool’s accounting and payout rules. Pools also raise a wider question about concentration: if a few large pools control a large share of network power, the network looks less decentralized in practice, even though the underlying rules remain open to all.
Hosted mining, sometimes sold under names such as cloud mining or mining contracts, means paying another company to run machines on your behalf, often in a distant facility, and receiving a share of the output. This model removes the need to buy machines, manage heat and noise, or negotiate a power contract. It also removes direct control. The buyer cannot inspect the machines easily, cannot verify that the machines exist or are devoted to their contract, and is exposed to the company’s solvency, fees, and contract terms. Some hosted services are genuine businesses with real facilities. Others have been outright scams, and regulators and consumer protection bodies have repeatedly warned about offers that promise guaranteed returns from mining. A promise of guaranteed mining profit should be treated as a warning sign, not a selling point, because mining returns depend on variables no seller can guarantee: future difficulty, fees, power costs, and market conditions.
For a reader trying to understand the landscape, the distinction is simple. Solo mining maximizes independence and variance. Pool mining trades some independence for steadier payouts. Hosted mining trades control for convenience and adds counterparty risk. None of these models changes the underlying competition. All three still compete for the same blocks under the same difficulty.
Energy and Cost: The Factors That Decide the Outcome
If one factor decides whether mining covers its costs, it is electricity. Industry surveys consistently put electricity at the center of mining economics. A Cambridge Centre for Alternative Finance survey, reported in its Digital Mining Industry Report, found that electricity made up more than 80 percent of miners’ cash based operating expenses, with a median reported electricity cost of 45 dollars per megawatt hour among surveyed miners. Those are survey results from a particular sample at a particular time, not a universal price, and a home miner on a retail tariff in most developed markets will usually pay a very different rate from an industrial operation with a negotiated power deal. The point of the survey is the shape of the cost, not the exact number: power dominates, and everything else is secondary.
Other costs still matter. Hardware must be bought, and it wears out and becomes outdated. Cooling is a real expense, because ASICs produce a great deal of heat. Noise is a practical problem at home, because industrial miners are loud, and ventilation, space, and electrical safety all need attention. Internet connectivity, maintenance, replacement parts, pool fees, and, where applicable, taxes and regulatory compliance add further costs. A home setup also competes with the household itself for power capacity: a domestic circuit is not designed for continuous industrial load, and electrical work should be handled by a qualified professional rather than improvised.
Total network energy use is often quoted in headlines, and here the honest answer is a range, not a single number. No authority can directly measure every watt used by every miner, because the network is decentralized and miners do not report to a central meter. Researchers therefore estimate total use from hashrate and assumptions about hardware efficiency, and different assumptions produce different totals. The Cambridge Centre for Alternative Finance survey based estimate of about 138 terawatt hours per year, roughly 0.5 percent of global electricity consumption, is widely cited. A separate model, the Digiconomist index, put the figure higher, at about 204 terawatt hours on a reading dated 5 September 2026. The gap between those figures is not an error by one side. It reflects different methods, different periods, and different assumptions about which machines are running. Any article that quotes one figure without mentioning the other, or without a date, gives a false sense of precision.
The energy mix raises a similar caution. The Cambridge Digital Mining Industry Report for 2025, as reported in secondary summaries, put sustainable sources, meaning renewables plus nuclear power, at 52.4 percent of mining electricity, up from 37.6 percent in 2022, with natural gas at 38.2 percent and coal at 8.9 percent. Those shares describe the surveyed sample and the report’s definitions, not a metered global total, and they will have moved since. Preliminary Cambridge figures presented in July 2026 put the December 2025 annualized figure near 190 terawatt hours and the low carbon share near 59.4 percent, but they do not replace the April 2025 figures above. They are useful for showing that the mix is contested and changing, not for claiming that mining is clean or dirty in general. The environmental question depends on where power comes from, when it is used, and what else that power could have done, and those details vary by site.
Is Mining Legal, and What Rules Apply
Mining is legal in many countries and restricted or banned in others, and the rules can change. China banned cryptocurrency mining in 2021, a decision widely reported at the time and often cited as the reason mining activity shifted to other countries, including the United States. Other countries have imposed licensing rules, electricity taxes, grid restrictions, or registration requirements, and some regions have limited mining during periods of grid strain. The United States has no single national mining law, so rules can vary by state and by locality, and they can involve electricity regulation, zoning, noise rules, and business registration.
Tax treatment also varies. In many jurisdictions, mined coins may be treated as income when received, and later sales may have separate tax consequences, but the details depend on the country, the miner’s status, and how the coins are used. This guide does not give tax advice or legal advice, and readers who mine at any scale should check the rules that apply where they live, and seek qualified professional advice for their own situation, rather than relying on a general explainer.
Can You Mine on a Phone or an Ordinary Laptop
This question comes up often, and the answer is short. Mining Bitcoin on a phone does not work as real mining. Apps that claim to mine Bitcoin on a phone are, in the usual case, simulations, reward schemes, or scams, not participation in Bitcoin’s proof of work network. A phone simply does not have the computing power or the energy budget to compete, and any app that claims otherwise without explaining that gap should be treated with skepticism.
Mining on an ordinary laptop or desktop computer is technically possible in the sense that mining software can be installed and run, and the machine will submit hashes. As a way to earn a meaningful amount of Bitcoin, it is not realistic for most people in 2026. The machine’s share of network power is so small, and its power use per hash is so poor compared with an ASIC, that payouts, even through a pool, are likely to be negligible while electricity, wear, heat, and noise costs continue. Some people still run a computer miner as a learning experiment, to understand how pools, wallets, and block explorers work. As education, that can make sense. As an income strategy, it does not, and guides that suggest otherwise are usually selling something.
What to Weigh Before Considering Mining at All
This guide does not recommend mining, and it does not recommend against it. It sets out the factors a careful reader would weigh, using local, dated figures rather than slogans: the full power price per kilowatt hour, including delivery charges and taxes; hardware price, efficiency in joules per terahash, noise, heat, space, and how quickly the machine may become outdated; current difficulty and hashrate from a reputable network data source; the reward schedule, remembering that the subsidy halves roughly every four years, with the next halving expected in about 2028; pool fees and payout terms, if pooling; local regulation, tax treatment, electrical safety, and ventilation; and wallet and software security, including obtaining software only from trusted sources. A reader whose real goal is to understand Bitcoin may learn more, with less risk and cost, by running a full node, reading protocol documentation, or using a block explorer than by running an uncompetitive miner at a loss. None of these points is personal financial advice, and none predicts whether any particular person will profit.
Common Myths, Corrected
Myth: mining creates bitcoin from nothing. Correction: mining issues new bitcoin only under fixed rules, up to a 21 million cap, and every block is checked by independent nodes.
Myth: more computers mean bitcoin is issued faster. Correction: difficulty adjustment keeps block production near one block every ten minutes on average. More power means more competition, not faster issuance.
Myth: a home computer can still mine profitably because Bitcoin went up in the past. Correction: past price movements do not change a computer’s share of network power or its efficiency per watt.
Myth: mining on a phone is an easy way to earn Bitcoin. Correction: phone apps that claim to mine Bitcoin are generally simulations or scams. Real mining requires sustained SHA-256 hashing at a scale a phone cannot provide.
Myth: when the last bitcoin is mined, mining will stop. Correction: issuance ends in about 2140 under current rules, but miners could continue to be paid from transaction fees if the network continues.
Myth: one energy figure settles the environmental debate. Correction: total mining energy use is estimated, not directly measured, and reputable models disagree by tens of terawatt hours per year.
Frequently Asked Questions
Can you still mine Bitcoin in 2026
Yes, in the technical sense. The network still issues blocks through proof of work, and anyone with compatible hardware and software can participate under the network rules. In the practical sense, competitive mining is dominated by specialized ASIC hardware and large operations, so a small or home based miner faces very different odds from an industrial miner. The distinction between technically possible and practically competitive is the whole story.
Can you mine Bitcoin on a normal computer
You can run mining software on a normal computer, and it will perform hashes. For most people, that will not produce a meaningful amount of Bitcoin, because the computer’s share of total network power is tiny and its energy efficiency for SHA-256 hashing is poor compared with an ASIC. Running a computer miner can still be a learning exercise, but it should not be treated as an income strategy.
Do you need an ASIC to mine Bitcoin
For competitive mining, effectively yes. ASICs are built solely to compute SHA-256 hashes efficiently, and they dominate Bitcoin mining today. A CPU or GPU can still hash, but it competes against ASICs for the same blocks, and that competition is why general purpose hardware stopped being competitive for Bitcoin years ago.
What is a mining pool, and do you need one
A mining pool is a group of miners who combine their computing power and share block rewards in proportion to the work each contributed, minus a pool fee. You do not strictly need one, since solo mining is permitted, but a small miner who wants steadier, smaller payouts rather than a very long wait for a possible solo block will usually find pooling more practical. Pool terms, fees, and payout methods vary, so they should be read before joining.
How much Bitcoin do miners earn per block now
As of the period covered by this guide, and following the April 2024 halving, the block subsidy is 3.125 bitcoin per block, plus the transaction fees in that block. That subsidy will halve again at the next halving, expected in about 2028. The dollar value of a block reward moves with market prices and fees, so this guide does not state a dollar figure for it. Any dollar figure quoted without a date will quickly go out of date.
How often is a new Bitcoin block found
On average, about every ten minutes. That is a target average maintained by difficulty adjustment every 2,016 blocks, not a fixed timer. Individual blocks can arrive much faster or much slower than ten minutes.
Is Bitcoin mining profitable
There is no general answer, and any source that gives one without asking about power price, hardware, difficulty, fees, and location should be treated with caution. Electricity is usually the largest ongoing cost, and industrial operators with low power prices face a different calculation from households on retail tariffs. Halvings, difficulty changes, and fee levels all move over time, so profitability at one date does not guarantee profitability later. This guide is an explainer, not investment advice, and it makes no profitability promise.
Does Bitcoin mining use a lot of electricity
Estimates vary by model and date, which is itself an important finding. A Cambridge survey based estimate put annual use at about 138 terawatt hours, roughly 0.5 percent of global electricity consumption, while the Digiconomist index read about 204 terawatt hours on 5 September 2026. Both are estimates, not direct measurements, because the network is decentralized. The energy mix also varies by site and over time, so broad claims about mining’s overall footprint should carry their source and date.
Sources & references
- CoinDesk, Retail bitcoin mining stages comeback amid AI boom, though profitability remains tough, 31 October 2026: network hashrate about 1.09 zettahashes per second, little changed from about 1.13 zettahashes per second a year earlier, and the assessment that making money as an individual miner remains hard.
- CoinShares, What is Bitcoin Mining: blocks roughly every ten minutes, SHA-256 competition, block reward of 3.125 bitcoin per block, and the United States position in global mining as reported from the Cambridge mining map.
- Bitget, Can you still mine Bitcoin on a PC in 2026, 2026: record network difficulty of 144.4 trillion in February 2026, dominance of ASIC hardware, and the finding that home PC mining is technically possible but extremely unlikely to be profitable for most individuals.
- Bitcoin.com, What Is Bitcoin Mining and How Does It Work in 2026: block reward of 3.125 bitcoin plus transaction fees, more than 20 million of 21 million bitcoin already mined, competitive mining requiring an ASIC, and phone mining apps described as simulations, ad harvesters, or scams.
- Blockstream Help Center, Halving: halving every 210,000 blocks, the April 2024 halving at block 840,000 from 6.25 to 3.125 bitcoin, and a fixed supply cap of 21 million coins with the last halving projected around 2140.
- Crypto.com, What is Bitcoin Halving and How Does it Work: halving schedule from 50 bitcoin in 2009 through 3.125 bitcoin in April 2024, difficulty adjustment every 2,016 blocks, and a ten minute block target.
- Cambridge Centre for Alternative Finance, Digital Mining Industry Report 2025, as reported in secondary summaries dated 2026: sustainable energy share of 52.4 percent, natural gas at 38.2 percent, coal at 8.9 percent, electricity above 80 percent of cash based operating expenses, and a median reported electricity cost of 45 dollars per megawatt hour.
- Cambridge Bitcoin Electricity Consumption Index, survey based estimate as reported in secondary summaries dated 2026: about 138 terawatt hours per year, roughly 0.5 percent of global electricity consumption, contrasted with the Digiconomist index reading of about 204 terawatt hours on 5 September 2026.
