What is Cryptocurrency Mining and How Does It Work? (2026)

What is cryptocurrency mining? How does mining work and is it still profitable? (2026)

Cryptocurrency mining is the process of verifying transactions and adding new blocks to a blockchain. In exchange for providing computing power, miners receive rewards in the form of newly mined coins and transaction fees. Although a regular computer was sufficient in the early years of Bitcoin, mining today requires specialized equipment, a large amount of electricity, and appropriate knowledge.

Is cryptocurrency mining still profitable? The answer depends on many factors, such as the price of Bitcoin, the cost of energy, mining difficulty, and the equipment used. In this article, we explain what cryptocurrency mining is, how mining works, and what mining opportunities exist in 2026.

What is cryptocurrency mining?

Cryptocurrency mining is the process that allows certain blockchain networks to function without a central institution controlling transactions. Miners use the computing power of their devices to confirm transactions and secure the network.

Unlike traditional financial systems, where banks approve transactions, in networks using Proof of Work, this is done by network participants known as miners. This keeps the blockchain decentralized and resistant to manipulation.

Cryptocurrency mining is therefore not just about "creating new coins," but primarily about maintaining the operation of the entire network. For their work, miners receive rewards, which serve as an economic incentive to continue securing the blockchain.
 

If you are just getting to know the world of cryptocurrencies, it is worth understanding the basics of how this technology works first. You can read more about this in the article What is blockchain technology and how does it work? A guide for beginners (2026).

What does cryptocurrency mining entail and how does it work?

Cryptocurrency mining is based on using computing power to perform cryptographic calculations required by the Proof of Work mechanism. This process allows for the verification of transactions and the addition of new blocks to the blockchain.

Proof of Work and transaction verification

The most well-known mechanism used in cryptocurrency mining is Proof of Work (PoW). In this model, miners compete with each other to be the first to solve a cryptographic task that requires significant computing power.

Once the task is solved, the network checks the correctness of the result. If everything matches, the block is accepted and added to the blockchain.

It is thanks to Proof of Work that secure transaction verification is possible without the involvement of intermediaries.

How is a new block created?

Every day, millions of transactions are performed on the Bitcoin network and other Proof of Work cryptocurrencies. Before they are permanently recorded, they go to a so-called mempool, which is a queue of pending transactions.

Miners select transactions waiting for approval and create a new block from them. The next step is to solve the cryptographic task that will allow the block to be recorded on the blockchain.

The first miner to find the correct result can add the new block to the blockchain. Other network participants verify its correctness, and then the blockchain is updated.

Rewards for cryptocurrency mining

The mining reward usually consists of two elements:

• new coins issued by the network,
• transaction fees paid by users.

In the case of Bitcoin, the number of new coins going to miners decreases approximately every four years during an event called the halving.

If you want to learn more about this mechanism, also read our guide: What influences the price of Bitcoin? Halving and factors affecting cryptocurrency prices.

Why does mining secure the blockchain network?

Mining performs a key security function. To modify the transaction history, a potential attacker would need to control a huge portion of the network's total computing power.

In practice, this means incurring gigantic costs for equipment and electricity. Thanks to this, networks like Bitcoin are considered some of the most secure digital systems in the world.

The greater the computing power securing the blockchain, the harder it is to carry out a successful attack.

Which cryptocurrencies can be mined in 2026?

Not all projects use the mining process. Many cryptocurrencies now operate based on the Proof of Stake mechanism, which has replaced traditional mining. However, there are still many popular cryptocurrencies that use Proof of Work.

Bitcoin (BTC)

Bitcoin remains the largest and most recognizable cryptocurrency that uses mining.

The Bitcoin network is secured by thousands of miners around the world using mainly specialized ASIC devices. It is Bitcoin that accounts for the majority of the global computing power used for cryptocurrency mining.

However, the high level of competition makes solo Bitcoin mining very difficult today and usually requires joining a mining pool.

Monero, Litecoin, and other Proof of Work cryptocurrencies

Besides Bitcoin, many other cryptocurrencies can still be mined.

The most popular include:

• Monero (XMR),
• Litecoin (LTC),
• Kaspa (KAS),
• Dogecoin (DOGE),
• Bitcoin Cash (BCH).

Each of these networks uses its own mining algorithm and has different hardware requirements. Some are more friendly to GPU graphics cards, while others prefer ASIC devices.

Why is Ethereum no longer mined?

Ethereum was one of the most frequently mined cryptocurrencies for many years. The situation changed after the network transitioned to the Proof of Stake mechanism.

Currently, Ethereum no longer uses mining. Instead of miners, the network is secured by validators who lock their funds in a staking process.

If you want to learn about this blockchain operating model, also read the article: What is cryptocurrency staking and how does it work? How to earn and what are the risks (2026).

Cryptocurrency mining equipment – ASIC, GPU, or computer?

Effective cryptocurrency mining requires the right equipment. In the early years of Bitcoin, a regular computer was enough, but as mining difficulty increased, the situation changed significantly. Currently, miners mainly use ASIC devices or high-performance GPU graphics cards.

ASIC cryptocurrency miner

An ASIC (Application-Specific Integrated Circuit) is a specialized device designed solely to perform specific calculations related to mining.

ASIC miners offer very high computing power with relatively low energy consumption per unit of work. As a result, they are currently the standard in Bitcoin mining.

Advantages of ASIC:

• very high performance,
• greater profitability at a large scale of operations,
• optimized energy consumption.

Disadvantages of ASIC:

• high purchase price,
• can only be used for selected algorithms,
• rapid equipment obsolescence as technology develops.

  Cryptocurrency mining using a GPU

  A GPU (Graphics Processing Unit), or graphics card, was the primary tool for mining cryptocurrencies for many years.

  Unlike ASICs, graphics cards are more versatile and can be used for various cryptocurrencies and other applications, such as gaming or artificial intelligence.

  Cryptocurrency mining using a GPU is still popular for some Proof of Work projects, especially those resistant to ASIC device dominance.

  Can you mine cryptocurrencies on a regular computer?

  Technically yes, but in practice, mining cryptocurrencies on a personal computer is rarely profitable.

  High mining difficulty means that CPUs offer too little computing power compared to professional mining equipment. The exception is some cryptocurrencies designed for mining using regular computers.

  For most users, buying cryptocurrencies on an exchange is much easier today than starting to mine on their own. If you are just starting your adventure with the market, also read the guide How to start investing in cryptocurrencies in 2026? A guide for beginners.

  How much does cryptocurrency mining equipment cost?

  The cost of cryptocurrency mining equipment can range from a few hundred to tens of thousands of euros.

  The total investment cost is influenced by:

  • the price of ASIC devices or graphics cards,
  • electricity costs,
  • cooling and ventilation,
  • equipment maintenance,
  • network infrastructure.

  Before starting mining, it is worth carefully calculating the potential profitability of mining and the expected return on investment.

   

  What is a cryptocurrency mine and a mining pool?

  A cryptocurrency mine is a collection of devices used for mining cryptocurrencies. It can be either a single miner or a large farm consisting of hundreds of devices.

  Because mining difficulty is constantly increasing, many miners decide to participate in mining pools, which allow them to combine computing power and receive rewards more regularly.

  Solo mining vs. mining pool

  In solo mining, the entire reward for a new block goes to one miner. The problem is that the chance of finding a block is very small today, especially in the case of Bitcoin.

  A mining pool allows you to combine the computing power of many participants and increase the probability of receiving rewards regularly.

  How do mining pools work?

  A mining pool is a group of miners who combine their computing power to increase the chances of finding a new block. Instead of competing individually, participants cooperate and participate in the mining process together.

  When a mining pool finds a new block, the received reward is divided among its members. The payout amount usually depends on each participant's contribution, i.e., the computing power provided.

  Thanks to this, miners do not have to rely on rare, high rewards from solo mining. Instead, they receive smaller but more regular payouts, which allows for predicting mining profitability.

  How are mining rewards divided?

  The method of reward distribution depends on the model used by a given mining pool.

  Most often, the amount of remuneration depends on:

  • the provided computing power,
  • the operating time of the devices,
  • the number of accepted shares.

  Mining pool operators usually charge a small fee for maintaining the infrastructure.

   

  Cloud mining – how does it work and is it worth it?

  Cloud mining is an alternative for people who want to participate in cryptocurrency mining without buying their own equipment.

  What is cloud mining?

  In the cloud mining model, the user rents computing power from a company that owns professional cryptocurrency mines.

  Instead of buying ASIC devices or graphics cards, the investor pays for a specific contract and receives a portion of the revenue generated by the rented equipment.

  Advantages of cloud mining

  The biggest advantages of cloud mining are:

  • no need to purchase equipment,
  • no noise or cooling problems,
  • easier start for beginners,
  • possibility to start with a small amount of capital.

  For many people, cloud mining is a simpler solution than building their own mining infrastructure.

  Disadvantages and risks of cloud mining

  However, cloud mining involves significant risks.

  The most common problems include:

  • dishonest companies offering fake contracts,
  • hidden fees,
  • low profitability,
  • lack of control over the equipment.

  Before using such a service, it is worth carefully checking the provider's reputation and being especially cautious about offers promising guaranteed profits.

   

  Is cryptocurrency mining profitable in 2026?

  This is one of the most frequently asked questions by people interested in mining. The answer is not straightforward, because the profitability of cryptocurrency mining depends on many variables.

  Electricity cost and energy consumption

  Electricity is one of the largest costs of mining operations.

  The lower the energy price, the greater the chance of achieving positive profitability. That is why large cryptocurrency mines are often built in regions offering cheap energy or access to renewable energy sources.

  Mining difficulty and mining profitability

  Blockchain networks regularly adjust the mining difficulty level.

  If more miners join the network and the total computing power increases, mining becomes more difficult. This means that more resources are needed to mine the same number of coins.

  This is precisely why mining profitability can change even from month to month.

  How does the price of Bitcoin affect mining profitability?

  The price of Bitcoin is of great importance to the entire mining sector. When the value of BTC rises, the potential revenue of miners also increases. Conversely, during price drops, some cryptocurrency mines may operate at the break-even point or shut down their devices entirely.

  The situation in the cryptocurrency market therefore has a direct impact on mining profitability. If you want to better understand how bull and bear markets affect Bitcoin and the entire market, also read the article Cryptocurrency market cycle: bull run, bull and bear markets – how the Bitcoin cycle works.

  When is it worth mining cryptocurrencies?

  Mining can be profitable primarily when:

  • you have a cheap source of energy,
  • you use modern equipment,
  • you choose the right cryptocurrency,
  • you understand the risks associated with the cryptocurrency market.

  Otherwise, buying cryptocurrencies directly on an exchange may prove to be a simpler and more effective form of investing.

   

  Is cryptocurrency mining legal?

  In most countries of the world, including Poland and European Union countries, cryptocurrency mining is legal. The mining process itself is not prohibited because it involves providing computing power for the operation of the blockchain network.

  However, it is worth remembering that regulations regarding cryptocurrencies may vary depending on the country. Some countries limit or completely ban mining due to high energy consumption or local regulations regarding digital assets.

  Legality of cryptocurrency mining in Poland and the EU

  Currently, both in Poland and in most European Union countries, you can legally mine cryptocurrencies using your own equipment or use cloud mining services.

  However, you must comply with local regulations regarding business activity, tax settlements, and electricity consumption. Large cryptocurrency mines may be subject to additional requirements related to conducting commercial activity.

  Do you have to report mined cryptocurrencies?

  Yes. In many jurisdictions, income related to cryptocurrencies is subject to taxation.

  Detailed rules for settlement may vary depending on the country, so before starting mining operations, it is worth familiarizing yourself with current regulations or consulting a tax advisor.

   

  Mining or staking – what is more profitable for beginners?

  Mining and staking are two different ways of participating in blockchain networks. Both solutions allow you to receive rewards, but they work in completely different ways.

  Proof of Work vs Proof of Stake

  Mining uses the Proof of Work mechanism, in which miners compete with each other using computing power.

  Staking is based on the Proof of Stake mechanism. Instead of solving mathematical tasks, participants lock a certain number of tokens and help secure the network as validators.

  Differences in costs, risks, and potential profits

  Mining requires the purchase of specialized computer equipment and incurring constant electricity costs. Potential profits depend on the price of the cryptocurrency, mining difficulty, and equipment performance.

  In the case of staking, you do not need a crypto miner or high computing power. However, the user must own a certain number of tokens of a given cryptocurrency.

  Both methods involve investment risk, because the value of digital assets can change significantly.

  What to choose in 2026?

  For most beginner investors, staking is currently a simpler solution than mining.

  Cryptocurrency mining can be attractive for people who have access to cheap energy and appropriate equipment. On the other hand, staking often requires a lower entry threshold and does not involve the need to maintain mining infrastructure.

  The choice depends primarily on your budget, technical knowledge, and individual investment goals. It is also worth remembering that both mining and staking are not the only ways to participate in the cryptocurrency market. Many investors simply decide to buy Bitcoin or other digital assets and hold them long-term.

  If you are wondering when it is worth entering the market and what factors to consider before buying cryptocurrencies, also read the guide Is it worth investing in cryptocurrencies in 2026? When to buy Bitcoin and other crypto.

   

  Summary

  Cryptocurrency mining is the process of verifying transactions and adding new blocks to a blockchain using computing power. Miners secure the network, and in return, they receive mining rewards and transaction fees.

  Although mining remains the foundation of the operation of Bitcoin and many other Proof of Work cryptocurrencies, its profitability today depends on many factors. The greatest influence is exerted by the cost of electricity, the price of the cryptocurrency, mining difficulty, and the quality of the equipment used.

  For some users, mining may still be profitable, but many people today choose alternative methods of participating in the cryptocurrency market, such as staking or direct purchase of assets on an exchange.

   

  Frequently asked questions about cryptocurrency mining

  What is cryptocurrency mining?

  Cryptocurrency mining is the process of verifying transactions and adding new blocks to a blockchain. In exchange for providing computing power, miners receive rewards in the form of cryptocurrencies.

  How does a crypto miner work?

  A crypto miner uses computing power to solve cryptographic tasks required by the Proof of Work mechanism. After finding the correct solution, it is possible to add a new block to the network.

  Does mining cryptocurrencies on a computer make sense?

  In most cases, no. High mining difficulty means that regular computers are much less efficient than ASIC devices or modern GPU graphics cards.

  How much can you earn from cryptocurrency mining?

  Potential profits depend on the price of the cryptocurrency, the cost of electricity, equipment performance, and the level of mining difficulty. There is no single universal answer for all miners.

  Is cryptocurrency mining legal?

  Yes. In Poland and most European Union countries, cryptocurrency mining is legal, provided that applicable regulations are followed.

  Is cloud mining safe?

  Cloud mining can be safe if you use the services of reputable companies. However, you should be cautious about offers guaranteeing high profits or requiring large upfront payments.

  What cryptocurrencies can be mined besides Bitcoin?

  Besides Bitcoin, you can mine, among others, Monero (XMR), Litecoin (LTC), Dogecoin (DOGE), Bitcoin Cash (BCH), or Kaspa (KAS). The list of cryptocurrencies using Proof of Work is constantly changing as the market develops.

   

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