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| Meta Title | What Is Bitcoin? Definition, Basics & How to Use - NerdWallet |
| Meta Description | Bitcoin, launched in 2009, was the first of a new kind of asset called cryptocurrency, a decentralized form of digital cash that eliminates the need for traditional intermediaries like banks and governments. |
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| Boilerpipe Text | Bitcoin (BTC) definition in simple language
Bitcoin is a form of digital currency that doesn't rely on central authorities such as banks or governments. Normal currencies, such as the U.S. dollar, have value because governments control their supply and enforce laws against counterfeiting them. Bitcoin acts as a store of value without a government. Instead, it uses something called a blockchain: a self-updating, self-checking online ledger that publicly displays how many Bitcoins each user has, and who has sent Bitcoin to whom.
When someone sends Bitcoin to another person, computers that are connected to the Bitcoin network automatically review the transaction for signs of fraud (such as "double-spending" a single Bitcoin that the ledger shows as already-spent). If the transaction looks clean, it is allowed to proceed and gets recorded in the blockchain ledger, so that it can be referenced to check the authenticity of future transactions.
This automatic transaction-checking process also creates new Bitcoins, which are automatically sent to the owners of those transaction-checking computers as a reward for their work. This whole system of ledgers and transaction checks is encrypted, which makes it tamper-proof — but that encryption also makes the transaction-checking process time-consuming and energy-intensive, hence the need for a reward.
This transaction-checking process is called the proof-of-work consensus mechanism, and people who earn new Bitcoins by using their computers to check transactions are called Bitcoin miners.
Launched in 2009 by a mysterious developer known as Satoshi Nakamoto, Bitcoin (BTC) was the first, and remains the most valuable, entrant in the emerging class of assets known as
cryptocurrencies
.
Bitcoin's price topped $100,000 for the first time on Dec. 4, 2024, a long-awaited milestone. And though it fell around 30% from that high in the months after, BTC once again hurdled $100,000 on May 8, 2025, demonstrating the cryptocurrency's resilience — and volatility. Later that year, it touched a new all-time high of more than $124,000.
Nerdy summary đź’ˇ
Bitcoin is a form of digital currency that uses blockchain technology to support transactions between users on a decentralized network.
New Bitcoins are created as part of the mining process, as a reward to people whose computer systems help validate transactions.
Investing in Bitcoin exposes you to a volatile asset class. There are many pros and cons to consider about whether it's right for your portfolio.
If you decide to buy Bitcoin, you’ll need a place to store it — like a "hot" (online) or "cold" (offline) wallet.
How does Bitcoin work?
Each Bitcoin is a digital asset that can be stored at a cryptocurrency exchange or in a digital wallet. Each individual coin represents the value of Bitcoin’s current price, but you can also own partial shares of each coin. The smallest denomination of each Bitcoin is called a Satoshi, sharing its name with Bitcoin’s creator. Each Satoshi is equivalent to a hundred millionth of one Bitcoin, so owning fractional shares of Bitcoin is quite common.
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Blockchain:
Bitcoin is powered by open-source code known as
blockchain
, which creates a shared public history of transactions organized into "blocks" that are "chained" together to prevent tampering. This technology creates a permanent record of each transaction, and it provides a way for every Bitcoin user to operate with the same understanding of who owns what.
Private and public keys:
A Bitcoin wallet contains a public key and a private key, which work together to allow the owner to initiate and digitally sign transactions. This unlocks the central function of Bitcoin — securely transferring ownership from one user to another.
Bitcoin mining:
Users on the Bitcoin network verify transactions through a process known as mining, which is designed to confirm that new transactions are consistent with other transactions that have been completed in the past. This ensures that you can’t spend a Bitcoin you don’t have, or that you have previously spent.
How does Bitcoin make money?
New Bitcoins are created as part of the Bitcoin mining process, in which they are offered as a lucrative reward to people who operate computer systems that help to validate transactions. Bitcoin miners — also known as "nodes" — are the owners of high speed computers which independently confirm each transaction, and add a completed "block" of transactions to the ever-growing "chain." The resulting blockchain is a complete, public and permanent record of every Bitcoin transaction.
Miners are then paid in Bitcoin for their efforts, which incentivizes the decentralized network to independently verify each transaction. This independent network of miners also decreases the chance for fraud or false information to be recorded, as the majority of miners need to confirm the authenticity of each block of data before it's added to the blockchain in a process known as proof-of-work.
But as Bitcoin has become more mainstream, and far more integrated into traditional finance, other ways of making money with Bitcoin have cropped up. Mostly notably, there are about a dozen spot bitcoin ETFs that track the price of Bitcoin, but can be bought and sold through most major stock brokerages. This type of ETF, first traded in 2024, has let investors gain exposure to Bitcoin without ever owning it directly.
You decide: Is Bitcoin a good investment?
Buying cryptocurrency
exposes you to a volatile asset class. A common rule of thumb is to devote only a small portion of a diversified portfolio to risky investments such as Bitcoin or individual stocks.
Whether or not
Bitcoin is a good investment
for you depends on your individual circumstances, but here are a few pros and cons of Bitcoin to consider.
Bitcoin pros
Privacy.
Bitcoin transactions and balances are recorded on a public ledger (the blockchain), but that ledger doesn't store any personally-identifying information about users. If you make sure your Bitcoin address can't be linked to your real-life identity, you can own, send and receive Bitcoin anonymously.
Decentralization
. After the financial crisis and the Great Recession, some investors are eager to embrace an alternative, decentralized currency — one that is essentially outside the control of regular banks, governing authorities or other third parties.
Growth potential.
Some investors who buy and hold the currency are betting that once Bitcoin matures, greater trust and more widespread use will follow, and therefore Bitcoin’s value will grow.
Bitcoin cons
Price volatility.
While Bitcoin's value has risen dramatically over the years, buyers' fortunes have varied widely depending on the timing of their investment.
Hacking concerns.
While backers say the blockchain technology behind Bitcoin is even more secure than traditional electronic money transfers, there have been a number of high-profile hacks.
Not protected by SIPC.
The Securities Investor Protection Corporation insures investors up to $500,000 if a brokerage fails or funds are stolen, but that insurance doesn’t cover cryptocurrency
.
Storing your Bitcoins: Hot wallets vs. cold wallets
If you decide to buy Bitcoin, you’ll need a place to store it. Bitcoins can be stored in two kinds of digital wallets:
Hot wallet:
You can often store cryptocurrency on exchanges where it is sold. Other providers offer standalone online storage. Such solutions provide access through a computer browser, desktop or smartphone app.
Cold wallet:
An encrypted portable device much like a thumb drive that allows you to download and carry your Bitcoins.
Basically, a hot wallet is connected to the internet; a cold wallet is not. But you need a hot wallet to download Bitcoins into a portable cold wallet.
How is Bitcoin taxed?
Like other cryptocurrencies, sales of Bitcoin are subject to short-term capital gains tax rates if the Bitcoin was held for a year or less, or long-term capital gains tax rates if the Bitcoin was held for more than a year.
Myths about Bitcoin
Bitcoin's hacker-culture origins and price volatility have brought it a significant amount of media attention, which has given rise to a number of common misconceptions about it. Here are a few:
Bitcoin payments are only used for illegal activity.
According to BitPay, there are dozens of (legitimate) companies that accept Bitcoin payments directly, and thousands that allow shoppers to purchase gift cards with Bitcoin
.
Bitcoin transactions are untraceable.
Bitcoin transactions are recorded in a public, online ledger (a blockchain) that everyone can see and no one can edit. It is true that a Bitcoin user can transact anonymously if their identity is not tied to their Bitcoin wallet, but many if not most of the major exchanges do collect and store user information.
Bitcoin Cash is a form of Bitcoin.
Bitcoin Cash (BCH) is actually a separate cryptocurrency which "forked" itself from Bitcoin in 2017. Check out our article on
Bitcoin vs. Bitcoin Cash
to learn more.
Investing in Bitcoin is a hedge against stock market downturns.
Over the last five years, the price of Bitcoin has often moved in the same direction as stock market indexes such as the S&P 500 and Nasdaq composite, making Bitcoin questionable as an investment alternative to stocks.
Bitcoin payments are free and instantaneous.
Due to the time- and energy-intensive nature of Bitcoin mining, transactions can take hours to process and may cost several dollars per payment.
Frequently asked questions
How do I start mining Bitcoin?
As Bitcoin has grown in popularity and value, competition for the rewards offered by mining has grown steeper. Most miners now use specialized computers designed just for that purpose. This equipment is expensive and uses a huge amount of energy, so the costs to run a mining operation can be a barrier to entry for many.
All of this means that Bitcoin mining is a difficult proposition for beginners, though some smaller operations choose to join mining pools in which they combine their computing power with others in an attempt to compete for rewards.
If you're interested in getting started, a first step would be to research some
popular mining pools
and what they require.
Can Bitcoin be converted to cash?
Like many other assets, Bitcoin can be bought and sold using
fiat currencies
such as the U.S. dollar. The price will depend on the current market value, which can fluctuate significantly from day to day.
If you're looking to buy or sell Bitcoin, you have a handful of choices. But for most beginners, the simplest and most convenient option is using a
cryptocurrency exchange
.
Some of these exchanges are operated by online stock brokerages, and others are independent. But given Bitcoin's prominence in the market, you can trade it at pretty much any platform that offers crypto.
Here are some other options for buying and selling Bitcoin:
Peer-to-peer transactions:
Someone might pay you in Bitcoin for a product or service, or accept Bitcoin as payment instead of cash.
Bitcoin ATMs:
There are more than 36,000 Bitcoin ATMs in the U.S. Search
Coin ATM Radar
to find one near you.
The author and the editor owned Bitcoin at the time of publication. |
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What Is Bitcoin? Definition, Basics & How to Use
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NerdWallet, Inc. is an independent publisher and comparison service, not an investment advisor. Its articles, interactive tools and other content are provided to you for free, as self-help tools and for informational purposes only. They are not intended to provide investment advice. NerdWallet does not and cannot guarantee the accuracy or applicability of any information in regard to your individual circumstances. Examples are hypothetical, and we encourage you to seek personalized advice from qualified professionals regarding specific investment issues. Our estimates are based on past market performance, and past performance is not a guarantee of future performance.
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# What Is Bitcoin? Definition, Basics & How to Use
Bitcoin was the first cryptocurrency, a decentralized form of digital cash that eliminates the need for traditional intermediaries like banks and governments. Bitcoin can be used as a currency or an investment.
![]()
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The investing information provided on this page is for educational purposes only. NerdWallet, Inc. does not offer advisory or brokerage services, nor does it recommend or advise investors to buy or sell particular stocks, securities or other investments.
Updated
Oct 24, 2025
· 4 min read
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## Bitcoin (BTC) definition in simple language
Bitcoin is a form of digital currency that doesn't rely on central authorities such as banks or governments. Normal currencies, such as the U.S. dollar, have value because governments control their supply and enforce laws against counterfeiting them. Bitcoin acts as a store of value without a government. Instead, it uses something called a blockchain: a self-updating, self-checking online ledger that publicly displays how many Bitcoins each user has, and who has sent Bitcoin to whom.
When someone sends Bitcoin to another person, computers that are connected to the Bitcoin network automatically review the transaction for signs of fraud (such as "double-spending" a single Bitcoin that the ledger shows as already-spent). If the transaction looks clean, it is allowed to proceed and gets recorded in the blockchain ledger, so that it can be referenced to check the authenticity of future transactions.
This automatic transaction-checking process also creates new Bitcoins, which are automatically sent to the owners of those transaction-checking computers as a reward for their work. This whole system of ledgers and transaction checks is encrypted, which makes it tamper-proof — but that encryption also makes the transaction-checking process time-consuming and energy-intensive, hence the need for a reward.
This transaction-checking process is called the proof-of-work consensus mechanism, and people who earn new Bitcoins by using their computers to check transactions are called Bitcoin miners.
Launched in 2009 by a mysterious developer known as Satoshi Nakamoto, Bitcoin (BTC) was the first, and remains the most valuable, entrant in the emerging class of assets known as [cryptocurrencies](https://www.nerdwallet.com/investing/learn/cryptocurrency).\[1\]
Bitcoin.org. [Bitcoin: A Peer-to-Peer Electronic Cash System](https://bitcoin.org/en/bitcoin-paper). Accessed Mar 17, 2022.
[View all sources](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-list)
Bitcoin's price topped \$100,000 for the first time on Dec. 4, 2024, a long-awaited milestone. And though it fell around 30% from that high in the months after, BTC once again hurdled \$100,000 on May 8, 2025, demonstrating the cryptocurrency's resilience — and volatility. Later that year, it touched a new all-time high of more than \$124,000.
## Nerdy summary đź’ˇ
- Bitcoin is a form of digital currency that uses blockchain technology to support transactions between users on a decentralized network.
- New Bitcoins are created as part of the mining process, as a reward to people whose computer systems help validate transactions.
- Investing in Bitcoin exposes you to a volatile asset class. There are many pros and cons to consider about whether it's right for your portfolio.
- If you decide to buy Bitcoin, you’ll need a place to store it — like a "hot" (online) or "cold" (offline) wallet.
## How does Bitcoin work?
Each Bitcoin is a digital asset that can be stored at a cryptocurrency exchange or in a digital wallet. Each individual coin represents the value of Bitcoin’s current price, but you can also own partial shares of each coin. The smallest denomination of each Bitcoin is called a Satoshi, sharing its name with Bitcoin’s creator. Each Satoshi is equivalent to a hundred millionth of one Bitcoin, so owning fractional shares of Bitcoin is quite common.
» More: [Best cryptocurrency exchanges and apps](https://www.nerdwallet.com/investing/best/crypto-exchanges-platforms)
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|---|---|---|
| NerdWallet rating NerdWallet's ratings are determined by our editorial team. The scoring formula for online brokers and robo-advisors takes into account over 15 factors, including account fees and minimums, investment choices, customer support and mobile app capabilities. [5\.0 /5](https://www.nerdwallet.com/investing/reviews/webull) | NerdWallet rating NerdWallet's ratings are determined by our editorial team. The scoring formula for online brokers and robo-advisors takes into account over 15 factors, including account fees and minimums, investment choices, customer support and mobile app capabilities. [4\.7 /5](https://www.nerdwallet.com/investing/reviews/uphold) | NerdWallet rating NerdWallet's ratings are determined by our editorial team. The scoring formula for online brokers and robo-advisors takes into account over 15 factors, including account fees and minimums, investment choices, customer support and mobile app capabilities. [4\.5 /5](https://www.nerdwallet.com/investing/reviews/coinbase) |
| Fees \$0 per trade | Fees 2%-5.5% | Fees 0% - 5% varies by type of transaction; other fees may apply |
| Account minimum \$0 | Account minimum \$1 | Account minimum \$0 |
| Promotion Up to 4% match (up to \$2M) when you open and fund an account with Webull | Promotion None no promotion available at this time | Promotion None no promotion available at this time |
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- Blockchain: Bitcoin is powered by open-source code known as [blockchain](https://www.nerdwallet.com/investing/learn/what-is-bitcoin), which creates a shared public history of transactions organized into "blocks" that are "chained" together to prevent tampering. This technology creates a permanent record of each transaction, and it provides a way for every Bitcoin user to operate with the same understanding of who owns what.
- Private and public keys: A Bitcoin wallet contains a public key and a private key, which work together to allow the owner to initiate and digitally sign transactions. This unlocks the central function of Bitcoin — securely transferring ownership from one user to another.
- Bitcoin mining: Users on the Bitcoin network verify transactions through a process known as mining, which is designed to confirm that new transactions are consistent with other transactions that have been completed in the past. This ensures that you can’t spend a Bitcoin you don’t have, or that you have previously spent.
» More: [How does Bitcoin mining work?](https://www.nerdwallet.com/investing/learn/cryptocurrency)
## How does Bitcoin make money?
New Bitcoins are created as part of the Bitcoin mining process, in which they are offered as a lucrative reward to people who operate computer systems that help to validate transactions. Bitcoin miners — also known as "nodes" — are the owners of high speed computers which independently confirm each transaction, and add a completed "block" of transactions to the ever-growing "chain." The resulting blockchain is a complete, public and permanent record of every Bitcoin transaction.
Miners are then paid in Bitcoin for their efforts, which incentivizes the decentralized network to independently verify each transaction. This independent network of miners also decreases the chance for fraud or false information to be recorded, as the majority of miners need to confirm the authenticity of each block of data before it's added to the blockchain in a process known as proof-of-work.
But as Bitcoin has become more mainstream, and far more integrated into traditional finance, other ways of making money with Bitcoin have cropped up. Mostly notably, there are about a dozen spot bitcoin ETFs that track the price of Bitcoin, but can be bought and sold through most major stock brokerages. This type of ETF, first traded in 2024, has let investors gain exposure to Bitcoin without ever owning it directly.
» Learn: [What is blockchain, and how does it work?](https://www.nerdwallet.com/investing/learn/what-is-bitcoin)
## You decide: Is Bitcoin a good investment?
[Buying cryptocurrency](https://www.nerdwallet.com/investing/learn/how-to-buy-cryptocurrency) exposes you to a volatile asset class. A common rule of thumb is to devote only a small portion of a diversified portfolio to risky investments such as Bitcoin or individual stocks.
Whether or not [Bitcoin is a good investment](https://www.nerdwallet.com/investing/learn/is-bitcoin-a-good-investment) for you depends on your individual circumstances, but here are a few pros and cons of Bitcoin to consider.
### Bitcoin pros
- Privacy. Bitcoin transactions and balances are recorded on a public ledger (the blockchain), but that ledger doesn't store any personally-identifying information about users. If you make sure your Bitcoin address can't be linked to your real-life identity, you can own, send and receive Bitcoin anonymously.
- Decentralization. After the financial crisis and the Great Recession, some investors are eager to embrace an alternative, decentralized currency — one that is essentially outside the control of regular banks, governing authorities or other third parties.
- Growth potential. Some investors who buy and hold the currency are betting that once Bitcoin matures, greater trust and more widespread use will follow, and therefore Bitcoin’s value will grow.
» Learn [how to invest in Bitcoin](https://www.nerdwallet.com/investing/learn/how-to-invest-in-bitcoin)
### Bitcoin cons
- Price volatility. While Bitcoin's value has risen dramatically over the years, buyers' fortunes have varied widely depending on the timing of their investment.
- Hacking concerns. While backers say the blockchain technology behind Bitcoin is even more secure than traditional electronic money transfers, there have been a number of high-profile hacks.
- Not protected by SIPC. The Securities Investor Protection Corporation insures investors up to \$500,000 if a brokerage fails or funds are stolen, but that insurance doesn’t cover cryptocurrency\[2\]
FINRA. [Cryptocurrency Trading Platforms: Do Your Homework](https://www.finra.org/investors/insights/cryptocurrency-trading-platforms-do-your-homework). Accessed Mar 17, 2022.
[View all sources](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-list)
.
## Storing your Bitcoins: Hot wallets vs. cold wallets
If you decide to buy Bitcoin, you’ll need a place to store it. Bitcoins can be stored in two kinds of digital wallets:
- Hot wallet: You can often store cryptocurrency on exchanges where it is sold. Other providers offer standalone online storage. Such solutions provide access through a computer browser, desktop or smartphone app.
- Cold wallet: An encrypted portable device much like a thumb drive that allows you to download and carry your Bitcoins.
Basically, a hot wallet is connected to the internet; a cold wallet is not. But you need a hot wallet to download Bitcoins into a portable cold wallet.
» Learn more: [What's the best Bitcoin wallet for you?](https://www.nerdwallet.com/investing/learn/get-a-crypto-wallet)
## How is Bitcoin taxed?
Like other cryptocurrencies, sales of Bitcoin are subject to short-term capital gains tax rates if the Bitcoin was held for a year or less, or long-term capital gains tax rates if the Bitcoin was held for more than a year.
» Dive deeper into [crypto taxes](https://www.nerdwallet.com/investing/learn/crypto-tax-rate).
## Myths about Bitcoin
Bitcoin's hacker-culture origins and price volatility have brought it a significant amount of media attention, which has given rise to a number of common misconceptions about it. Here are a few:
- Bitcoin payments are only used for illegal activity. According to BitPay, there are dozens of (legitimate) companies that accept Bitcoin payments directly, and thousands that allow shoppers to purchase gift cards with Bitcoin\[3\]
BitPay. [Directory](https://www.bitpay.com/directory). Accessed Feb 4, 2025.
[View all sources](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-list)
.
- Bitcoin transactions are untraceable. Bitcoin transactions are recorded in a public, online ledger (a blockchain) that everyone can see and no one can edit. It is true that a Bitcoin user can transact anonymously if their identity is not tied to their Bitcoin wallet, but many if not most of the major exchanges do collect and store user information.
- Bitcoin Cash is a form of Bitcoin. Bitcoin Cash (BCH) is actually a separate cryptocurrency which "forked" itself from Bitcoin in 2017. Check out our article on [Bitcoin vs. Bitcoin Cash](https://www.nerdwallet.com/investing/learn/what-is-bitcoin) to learn more.
- Investing in Bitcoin is a hedge against stock market downturns. Over the last five years, the price of Bitcoin has often moved in the same direction as stock market indexes such as the S\&P 500 and Nasdaq composite, making Bitcoin questionable as an investment alternative to stocks.
- Bitcoin payments are free and instantaneous. Due to the time- and energy-intensive nature of Bitcoin mining, transactions can take hours to process and may cost several dollars per payment.
Frequently asked questions
How do I start mining Bitcoin?
As Bitcoin has grown in popularity and value, competition for the rewards offered by mining has grown steeper. Most miners now use specialized computers designed just for that purpose. This equipment is expensive and uses a huge amount of energy, so the costs to run a mining operation can be a barrier to entry for many.
All of this means that Bitcoin mining is a difficult proposition for beginners, though some smaller operations choose to join mining pools in which they combine their computing power with others in an attempt to compete for rewards.
If you're interested in getting started, a first step would be to research some [popular mining pools](https://coinmarketcap.com/alexandria/article/what-is-pool-mining) and what they require.
Can Bitcoin be converted to cash?
Like many other assets, Bitcoin can be bought and sold using [fiat currencies](https://www.nerdwallet.com/article/investing/fiat-currency) such as the U.S. dollar. The price will depend on the current market value, which can fluctuate significantly from day to day.
If you're looking to buy or sell Bitcoin, you have a handful of choices. But for most beginners, the simplest and most convenient option is using a [cryptocurrency exchange](https://www.nerdwallet.com/best/investing/crypto-exchanges-platforms).
Some of these exchanges are operated by online stock brokerages, and others are independent. But given Bitcoin's prominence in the market, you can trade it at pretty much any platform that offers crypto.
Here are some other options for buying and selling Bitcoin:
- Peer-to-peer transactions: Someone might pay you in Bitcoin for a product or service, or accept Bitcoin as payment instead of cash.
- Bitcoin ATMs: There are more than 36,000 Bitcoin ATMs in the U.S. Search [Coin ATM Radar](https://coinatmradar.com/) to find one near you.
How do I start mining Bitcoin?
As Bitcoin has grown in popularity and value, competition for the rewards offered by mining has grown steeper. Most miners now use specialized computers designed just for that purpose. This equipment is expensive and uses a huge amount of energy, so the costs to run a mining operation can be a barrier to entry for many.
All of this means that Bitcoin mining is a difficult proposition for beginners, though some smaller operations choose to join mining pools in which they combine their computing power with others in an attempt to compete for rewards.
If you're interested in getting started, a first step would be to research some
[popular mining pools](https://coinmarketcap.com/alexandria/article/what-is-pool-mining)
and what they require.
Can Bitcoin be converted to cash?
Like many other assets, Bitcoin can be bought and sold using
[fiat currencies](https://www.nerdwallet.com/article/investing/fiat-currency)
such as the U.S. dollar. The price will depend on the current market value, which can fluctuate significantly from day to day.
If you're looking to buy or sell Bitcoin, you have a handful of choices. But for most beginners, the simplest and most convenient option is using a
[cryptocurrency exchange](https://www.nerdwallet.com/best/investing/crypto-exchanges-platforms)
.
Some of these exchanges are operated by online stock brokerages, and others are independent. But given Bitcoin's prominence in the market, you can trade it at pretty much any platform that offers crypto.
Here are some other options for buying and selling Bitcoin:
- **Peer-to-peer transactions:**
Someone might pay you in Bitcoin for a product or service, or accept Bitcoin as payment instead of cash.
- **Bitcoin ATMs:**
There are more than 36,000 Bitcoin ATMs in the U.S. Search
[Coin ATM Radar](https://coinatmradar.com/)
to find one near you.
The author and the editor owned Bitcoin at the time of publication.
Article sources
NerdWallet writers are subject matter authorities who use primary, trustworthy sources to inform their work, including peer-reviewed studies, government websites, academic research and interviews with industry experts. All content is fact-checked for accuracy, timeliness and relevance. You can learn more about NerdWallet's high standards for journalism by reading our [editorial guidelines](https://www.nerdwallet.com/l/nerdwallet-editorial-guidelines).
- [1\.](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-x1987782812)Bitcoin.org. [Bitcoin: A Peer-to-Peer Electronic Cash System](https://bitcoin.org/en/bitcoin-paper). Accessed Mar 17, 2022.
- [2\.](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-x3078325811)FINRA. [Cryptocurrency Trading Platforms: Do Your Homework](https://www.finra.org/investors/insights/cryptocurrency-trading-platforms-do-your-homework). Accessed Mar 17, 2022.
- [3\.](https://www.nerdwallet.com/investing/learn/what-is-bitcoin#citation-x2290409880)BitPay. [Directory](https://www.bitpay.com/directory). Accessed Feb 4, 2025.
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About the authors
[![Kevin Voigt]()](https://www.nerdwallet.com/author/kevin-voigt)
[Kevin Voigt](https://www.nerdwallet.com/author/kevin-voigt)
Kevin Voigt is a former investing writer for NerdWallet. He has covered financial issues for more than 20 years, including for The Wall Street Journal and CNN.com. [See full bio.](https://www.nerdwallet.com/author/kevin-voigt)
[![Andy Rosen]()](https://www.nerdwallet.com/author/andy-rosen)
[Andy Rosen](https://www.nerdwallet.com/author/andy-rosen)
Andy Rosen is a former NerdWallet writer focused on cryptocurrency and alternative investments. He has more than 15 years of journalism experience as a reporter and editor at organizations including The Boston Globe and The Baltimore Sun. [See full bio.](https://www.nerdwallet.com/author/andy-rosen)
Helpful resources
[Cryptocurrency Basics: Pros, Cons and How It Works](https://www.nerdwallet.com/investing/learn/cryptocurrency)
[How to Buy Bitcoin (BTC): Quick-Start Guide](https://www.nerdwallet.com/investing/learn/how-to-invest-in-bitcoin)
[Crypto staking: What it is, how it works, calculator](https://www.nerdwallet.com/investing/learn/how-crypto-staking-works)
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4\.8
121,000+ reviews
[%22%3E%3Cstop%20offset%3D%220%22%20style%3D%22stop-color%3A%2300A0FF%22%2F%3E%3Cstop%20offset%3D%226.569999e-03%22%20style%3D%22stop-color%3A%2300A1FF%22%2F%3E%3Cstop%20offset%3D%220.2601%22%20style%3D%22stop-color%3A%2300BEFF%22%2F%3E%3Cstop%20offset%3D%220.5122%22%20style%3D%22stop-color%3A%2300D2FF%22%2F%3E%3Cstop%20offset%3D%220.7604%22%20style%3D%22stop-color%3A%2300DFFF%22%2F%3E%3Cstop%20offset%3D%221%22%20style%3D%22stop-color%3A%2300E3FF%22%2F%3E%3C%2FlinearGradient%3E%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20fill%3D%22url\(%23SVGID_1_\)%22%20d%3D%22M418.4%2C302.1c-11.6%2C12.5-18.3%2C31.6-18.3%2C56.6v886.7c0%2C25%2C6.7%2C44.1%2C18.7%2C56.1l3.1%2C2.7l496.8-496.8v-11.1%20L421.5%2C299.4C421.5%2C299.4%2C418.4%2C302.1%2C418.4%2C302.1z%22%2F%3E%3ClinearGradient%20id%3D%22SVGID_2_%22%20gradientUnits%3D%22userSpaceOnUse%22%20x1%3D%221712.6624%22%20y1%3D%221274.8376%22%20x2%3D%221606.5613%22%20y2%3D%221274.8376%22%20gradientTransform%3D%22matrix\(9.145%200%200%20-7.7%20-14305.5381%2010618.251\)%22%3E%3Cstop%20offset%3D%220%22%20style%3D%22stop-color%3A%23FFE000%22%2F%3E%3Cstop%20offset%3D%220.4087%22%20style%3D%22stop-color%3A%23FFBD00%22%2F%3E%3Cstop%20offset%3D%220.7754%22%20style%3D%22stop-color%3A%23FFA500%22%2F%3E%3Cstop%20offset%3D%221%22%20style%3D%22stop-color%3A%23FF9C00%22%2F%3E%3C%2FlinearGradient%3E%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20fill%3D%22url\(%23SVGID_2_\)%22%20d%3D%22M1084%2C973.5L918.3%2C807.8v-11.6L1084%2C630.5l3.6%2C2.2l196%2C111.4c56.1%2C31.6%2C56.1%2C83.8%2C0%2C115.8l-196%2C111.4%20C1087.6%2C971.3%2C1084%2C973.5%2C1084%2C973.5z%22%2F%3E%3ClinearGradient%20id%3D%22SVGID_3_%22%20gradientUnits%3D%22userSpaceOnUse%22%20x1%3D%221707.4414%22%20y1%3D%221290.0475%22%20x2%3D%221646.682%22%20y2%3D%221211.2225%22%20gradientTransform%3D%22matrix\(15.02%200%200%20-11.5775%20-24650.2285%2015829.6484\)%22%3E%3Cstop%20offset%3D%220%22%20style%3D%22stop-color%3A%23FF3A44%22%2F%3E%3Cstop%20offset%3D%221%22%20style%3D%22stop-color%3A%23C31162%22%2F%3E%3C%2FlinearGradient%3E%3Cpath%20fill%3D%22url\(%23SVGID_3_\)%22%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20d%3D%22M1087.6%2C971.3L918.3%2C802l-499.9%2C499.9c18.3%2C19.6%2C49%2C21.8%2C83.3%2C2.7L1087.6%2C971.3%22%2F%3E%3ClinearGradient%20id%3D%22SVGID_4_%22%20gradientUnits%3D%22userSpaceOnUse%22%20x1%3D%221660.6357%22%20y1%3D%221365.6676%22%20x2%3D%221687.767%22%20y2%3D%221330.4501%22%20gradientTransform%3D%22matrix\(15.02%200%200%20-11.5715%20-24650.2285%2015809.9922\)%22%3E%3Cstop%20offset%3D%220%22%20style%3D%22stop-color%3A%2332A071%22%2F%3E%3Cstop%20offset%3D%226.850000e-02%22%20style%3D%22stop-color%3A%232DA771%22%2F%3E%3Cstop%20offset%3D%220.4762%22%20style%3D%22stop-color%3A%2315CF74%22%2F%3E%3Cstop%20offset%3D%220.8009%22%20style%3D%22stop-color%3A%2306E775%22%2F%3E%3Cstop%20offset%3D%221%22%20style%3D%22stop-color%3A%2300F076%22%2F%3E%3C%2FlinearGradient%3E%3Cpath%20fill%3D%22url\(%23SVGID_4_\)%22%20fill-rule%3D%22evenodd%22%20enable-background%3D%22new%22%20clip-rule%3D%22evenodd%22%20d%3D%22M1087.6%2C632.7L501.7%2C299.9c-34.3-19.6-65.1-16.9-83.3%2C2.7L918.3%2C802L1087.6%2C632.7z%22%2F%3E%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20opacity%3D%220.2%22%20d%3D%22M1084%2C967.7l-581.9%2C330.6c-32.5%2C18.7-61.5%2C17.4-80.2%2C0.4l-3.1%2C3.1l3.1%2C2.7c18.7%2C16.9%2C47.7%2C18.3%2C80.2-0.4%20L1088%2C971.3C1088%2C971.3%2C1084%2C967.7%2C1084%2C967.7z%22%2F%3E%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20opacity%3D%220.12%22%20enable-background%3D%22new%22%20d%3D%22M1283.6%2C854.1l-200.1%2C113.6l3.6%2C3.6l196-111.4c28.1-16%2C41.9-37%2C41.9-57.9C1323.3%2C821.2%2C1309%2C839.4%2C1283.6%2C854.1%20z%22%2F%3E%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20opacity%3D%220.25%22%20enable-background%3D%22new%22%20d%3D%22M501.7%2C305.7l781.9%2C444.2c25.4%2C14.3%2C39.7%2C33%2C41.9%2C52.1c0-20.9-13.8-41.9-41.9-57.9L501.7%2C299.9%20c-56.1-32.1-101.6-5.3-101.6%2C58.8v5.8C400.1%2C300.3%2C445.6%2C274%2C501.7%2C305.7z%22%2F%3E%3C%2Fsvg%3E)](https://nerdwallet.onelink.me/3687710914/233a7a41)
4\.3
31,200+ reviews
Disclaimer: NerdWallet strives to keep its information accurate and up to date. This information may be different than what you see when you visit a financial institution, service provider or specific product's site. All financial products, shopping products and services are presented without warranty. When evaluating offers, please review the financial institution's Terms and Conditions. Pre-qualified offers are not binding. If you find discrepancies with your credit score or information from your credit report, please contact TransUnion® directly.
NerdWallet Compare, Inc. NMLS ID\# 1617539
[NMLS Consumer Access](https://www.nmlsconsumeraccess.org/EntityDetails.aspx/COMPANY/1617539) \| [Licenses and Disclosures](https://www.nerdwallet.com/p/nerdwallet-compare-inc-licenses-and-disclosures)
California: California Finance Lender loans arranged pursuant to Department of Financial Protection and Innovation Finance Lenders License \#60DBO-74812
Insurance Services offered through NerdWallet Insurance Services, Inc. (CA resident license no.OK92033) [Insurance Licenses](https://www.nerdwallet.com/nerdwallet-insurance-services-inc-licenses-and-disclosures)
Fundera, Inc. NMLS ID\# 1240038
[NMLS Consumer Access](https://nmlsconsumeraccess.org/)
California: California Finance Lender loans arranged pursuant to the Department of Financial Protection and Innovation Finance Lenders License \#603L288
NerdWallet has engaged Atomic Invest LLC (“Atomic”), an SEC-registered investment adviser, to bring you the opportunity to open investment advisory accounts (Automated Investing Account and/or Treasury Account) with Atomic. NerdWallet receives compensation of 0% to 0.85% of assets under management annualized, payable monthly, for each referred client who opens an Atomic account and a percentage of free cash interest earned by clients, which creates a conflict of interest. Brokerage services for Atomic are provided by Atomic Brokerage LLC ("Atomic Brokerage"), member of [FINRA](https://www.finra.org/#/)/[SIPC](https://www.sipc.org/) and an affiliate of Atomic, which creates a conflict of interest. See details about Atomic, in their [Form CRS](https://reports.adviserinfo.sec.gov/crs/crs_313255.pdf), [Form ADV Part 2A](https://adviserinfo.sec.gov/firm/brochure/313255) and [Privacy Policy](https://legal.atomicvest.com/usa.privacy.de3d0277-78f7-4741-9e9f-755f6b4f03ba.pdf). See details about Atomic Brokerage in their [Form CRS](https://files.brokercheck.finra.org/crs_315263.pdf), [General Disclosures](https://legal.atomicvest.com/usa.broker.disclosures.003464f3-f6bd-41c3-bbdf-7050e50b43a2.pdf), [fee schedule](https://legal.atomicvest.com/usa.broker.schedule.7ea28665-88a9-4542-a748-987e90ea46b6.pdf), and FINRA’s [BrokerCheck](https://brokercheck.finra.org/).
You also can open a Cash Account offered by Atomic Brokerage which allows you to earn interest on your cash through a cash sweep program. [View Important Cash Account Disclosures.](https://www.atomicvest.com/legal/disclosures/7d9c31dd-bf97-46ae-9803-1774b97187af)
Neither Atomic Invest nor Atomic Brokerage, nor any of their affiliates is a bank. Investments in securities: Not FDIC Insured, Not Bank Guaranteed, May Lose Value. Investing involves risk, including the possible loss of principal. Before investing, consider your investment objectives and the fees and expenses charged.
Images are for illustrative purposes only.
NerdWallet™ \| 4150 N Drinkwater Blvd, Suite 200, Scottsdale, AZ 85251
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NerdWallet USA
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[%22%3E%3Cg%20clip-path%3D%27url\(%23clipCA\)%27%3E%3Cpath%20d%3D%22M22.81%201H1.42V15.58H22.81V1Z%22%20stroke%3D%22currentColor%22%20strokeMiterlimit%3D%2210%22%20strokeLinejoin%3D%22round%22%20%2F%3E%3Cpath%20d%3D%22M14.7425%2010.5472C14.7961%2010.4936%2017%208.56438%2017%208.56438L16.6245%208.40343C16.4099%208.29828%2016.4657%208.15665%2016.5172%208.03004C16.5687%207.86695%2016.9485%206.58584%2016.9485%206.58584C16.9485%206.58584%2015.9249%206.80043%2015.7103%206.85408C15.5494%206.90558%2015.4957%206.80043%2015.4421%206.69313C15.3884%206.58584%2015.1202%205.99785%2015.1202%205.99785C15.1202%205.99785%2013.9914%207.28326%2013.9378%207.33476C13.7232%207.49571%2013.5064%207.33476%2013.5601%207.12017C13.5601%206.90558%2014.1524%204.33906%2014.1524%204.33906C14.1524%204.33906%2013.5064%204.71245%2013.2918%204.81974C13.1309%204.92704%2013.0215%204.92704%2012.9142%204.71245C12.8047%204.5515%2011.9979%203%2011.9979%203C11.9979%203%2011.1931%204.5515%2011.0858%204.71245C10.9785%204.92704%2010.8712%204.92704%2010.7082%204.81974C10.4936%204.71245%209.84764%204.33906%209.84764%204.33906C9.84764%204.33906%2010.4399%206.90558%2010.4399%207.12017C10.4936%207.33476%2010.279%207.49571%2010.0622%207.33476C10.0086%207.28112%208.87983%205.99785%208.87983%205.99785C8.87983%205.99785%208.61159%206.58369%208.55794%206.69099C8.50429%206.79828%208.45064%206.90343%208.2897%206.85193C8.07296%206.79828%207.0515%206.58369%207.0515%206.58369C7.0515%206.58369%207.42918%207.86481%207.48283%208.0279C7.53433%208.15665%207.59013%208.29614%207.37554%208.40129L7%208.56438C7%208.56438%209.20172%2010.4936%209.25751%2010.5472C9.36695%2010.6545%209.4721%2010.7082%209.36695%2011.03C9.25751%2011.3519%209.15021%2011.7833%209.15021%2011.7833C9.15021%2011.7833%2011.1931%2011.3519%2011.4099%2011.2983C11.5966%2011.279%2011.8026%2011.3519%2011.8026%2011.5665C11.8026%2011.7811%2011.6781%2013.9871%2011.6781%2013.9871H12.3219C12.3219%2013.9871%2012.1974%2011.7833%2012.1974%2011.5665C12.1974%2011.3498%2012.4013%2011.279%2012.5923%2011.2983C12.8069%2011.3519%2014.8498%2011.7833%2014.8498%2011.7833C14.8498%2011.7833%2014.7425%2011.3519%2014.6352%2011.03C14.5279%2010.7082%2014.6352%2010.6545%2014.7425%2010.5472Z%22%20fill%3D%22currentColor%22%20%2F%3E%3Crect%20x%3D%221%22%20y%3D%221%22%20width%3D%225%22%20height%3D%2215%22%20fill%3D%22currentColor%22%20%2F%3E%3Crect%20x%3D%2218%22%20y%3D%221%22%20width%3D%225%22%20height%3D%2215%22%20fill%3D%22currentColor%22%20%2F%3E%3C%2Fg%3E%3Cdefs%3E%3CclipPath%20id%3D%27clipCA%27%3E%3Crect%20width%3D%2228%22%20height%3D%2220%22%20fill%3D%22currentColor%22%20%2F%3E%3C%2FclipPath%3E%3C%2Fdefs%3E%3C%2Fsvg%3E) NerdWallet CA](https://www.nerdwallet.com/ca)
[%22%3E%3Cg%20clip-path%3D%27url\(%23clipCA\)%27%3E%3Cpath%20d%3D%22M22.81%201H1.42V15.58H22.81V1Z%22%20stroke%3D%22currentColor%22%20strokeMiterlimit%3D%2210%22%20strokeLinejoin%3D%22round%22%20%2F%3E%3Cpath%20d%3D%22M14.7425%2010.5472C14.7961%2010.4936%2017%208.56438%2017%208.56438L16.6245%208.40343C16.4099%208.29828%2016.4657%208.15665%2016.5172%208.03004C16.5687%207.86695%2016.9485%206.58584%2016.9485%206.58584C16.9485%206.58584%2015.9249%206.80043%2015.7103%206.85408C15.5494%206.90558%2015.4957%206.80043%2015.4421%206.69313C15.3884%206.58584%2015.1202%205.99785%2015.1202%205.99785C15.1202%205.99785%2013.9914%207.28326%2013.9378%207.33476C13.7232%207.49571%2013.5064%207.33476%2013.5601%207.12017C13.5601%206.90558%2014.1524%204.33906%2014.1524%204.33906C14.1524%204.33906%2013.5064%204.71245%2013.2918%204.81974C13.1309%204.92704%2013.0215%204.92704%2012.9142%204.71245C12.8047%204.5515%2011.9979%203%2011.9979%203C11.9979%203%2011.1931%204.5515%2011.0858%204.71245C10.9785%204.92704%2010.8712%204.92704%2010.7082%204.81974C10.4936%204.71245%209.84764%204.33906%209.84764%204.33906C9.84764%204.33906%2010.4399%206.90558%2010.4399%207.12017C10.4936%207.33476%2010.279%207.49571%2010.0622%207.33476C10.0086%207.28112%208.87983%205.99785%208.87983%205.99785C8.87983%205.99785%208.61159%206.58369%208.55794%206.69099C8.50429%206.79828%208.45064%206.90343%208.2897%206.85193C8.07296%206.79828%207.0515%206.58369%207.0515%206.58369C7.0515%206.58369%207.42918%207.86481%207.48283%208.0279C7.53433%208.15665%207.59013%208.29614%207.37554%208.40129L7%208.56438C7%208.56438%209.20172%2010.4936%209.25751%2010.5472C9.36695%2010.6545%209.4721%2010.7082%209.36695%2011.03C9.25751%2011.3519%209.15021%2011.7833%209.15021%2011.7833C9.15021%2011.7833%2011.1931%2011.3519%2011.4099%2011.2983C11.5966%2011.279%2011.8026%2011.3519%2011.8026%2011.5665C11.8026%2011.7811%2011.6781%2013.9871%2011.6781%2013.9871H12.3219C12.3219%2013.9871%2012.1974%2011.7833%2012.1974%2011.5665C12.1974%2011.3498%2012.4013%2011.279%2012.5923%2011.2983C12.8069%2011.3519%2014.8498%2011.7833%2014.8498%2011.7833C14.8498%2011.7833%2014.7425%2011.3519%2014.6352%2011.03C14.5279%2010.7082%2014.6352%2010.6545%2014.7425%2010.5472Z%22%20fill%3D%22currentColor%22%20%2F%3E%3Crect%20x%3D%221%22%20y%3D%221%22%20width%3D%225%22%20height%3D%2215%22%20fill%3D%22currentColor%22%20%2F%3E%3Crect%20x%3D%2218%22%20y%3D%221%22%20width%3D%225%22%20height%3D%2215%22%20fill%3D%22currentColor%22%20%2F%3E%3C%2Fg%3E%3Cdefs%3E%3CclipPath%20id%3D%27clipCA%27%3E%3Crect%20width%3D%2228%22%20height%3D%2220%22%20fill%3D%22currentColor%22%20%2F%3E%3C%2FclipPath%3E%3C%2Fdefs%3E%3C%2Fsvg%3E) NerdWallet CA](https://www.nerdwallet.com/ca)
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| Readable Markdown | Bitcoin (BTC) definition in simple language
Bitcoin is a form of digital currency that doesn't rely on central authorities such as banks or governments. Normal currencies, such as the U.S. dollar, have value because governments control their supply and enforce laws against counterfeiting them. Bitcoin acts as a store of value without a government. Instead, it uses something called a blockchain: a self-updating, self-checking online ledger that publicly displays how many Bitcoins each user has, and who has sent Bitcoin to whom.
When someone sends Bitcoin to another person, computers that are connected to the Bitcoin network automatically review the transaction for signs of fraud (such as "double-spending" a single Bitcoin that the ledger shows as already-spent). If the transaction looks clean, it is allowed to proceed and gets recorded in the blockchain ledger, so that it can be referenced to check the authenticity of future transactions.
This automatic transaction-checking process also creates new Bitcoins, which are automatically sent to the owners of those transaction-checking computers as a reward for their work. This whole system of ledgers and transaction checks is encrypted, which makes it tamper-proof — but that encryption also makes the transaction-checking process time-consuming and energy-intensive, hence the need for a reward.
This transaction-checking process is called the proof-of-work consensus mechanism, and people who earn new Bitcoins by using their computers to check transactions are called Bitcoin miners.
Launched in 2009 by a mysterious developer known as Satoshi Nakamoto, Bitcoin (BTC) was the first, and remains the most valuable, entrant in the emerging class of assets known as [cryptocurrencies](https://www.nerdwallet.com/investing/learn/cryptocurrency).
Bitcoin's price topped \$100,000 for the first time on Dec. 4, 2024, a long-awaited milestone. And though it fell around 30% from that high in the months after, BTC once again hurdled \$100,000 on May 8, 2025, demonstrating the cryptocurrency's resilience — and volatility. Later that year, it touched a new all-time high of more than \$124,000.
Nerdy summary đź’ˇ
- Bitcoin is a form of digital currency that uses blockchain technology to support transactions between users on a decentralized network.
- New Bitcoins are created as part of the mining process, as a reward to people whose computer systems help validate transactions.
- Investing in Bitcoin exposes you to a volatile asset class. There are many pros and cons to consider about whether it's right for your portfolio.
- If you decide to buy Bitcoin, you’ll need a place to store it — like a "hot" (online) or "cold" (offline) wallet.
How does Bitcoin work?
Each Bitcoin is a digital asset that can be stored at a cryptocurrency exchange or in a digital wallet. Each individual coin represents the value of Bitcoin’s current price, but you can also own partial shares of each coin. The smallest denomination of each Bitcoin is called a Satoshi, sharing its name with Bitcoin’s creator. Each Satoshi is equivalent to a hundred millionth of one Bitcoin, so owning fractional shares of Bitcoin is quite common.
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|---|---|---|
| NerdWallet rating [5\.0 /5](https://www.nerdwallet.com/investing/reviews/webull) | NerdWallet rating [4\.7 /5](https://www.nerdwallet.com/investing/reviews/uphold) | NerdWallet rating [4\.5 /5](https://www.nerdwallet.com/investing/reviews/coinbase) |
| Fees \$0 per trade | Fees 2%-5.5% | Fees 0% - 5% varies by type of transaction; other fees may apply |
| Account minimum \$0 | Account minimum \$1 | Account minimum \$0 |
| Promotion Up to 4% match (up to \$2M) when you open and fund an account with Webull | Promotion None no promotion available at this time | Promotion None no promotion available at this time |
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- Blockchain: Bitcoin is powered by open-source code known as [blockchain](https://www.nerdwallet.com/investing/learn/what-is-bitcoin), which creates a shared public history of transactions organized into "blocks" that are "chained" together to prevent tampering. This technology creates a permanent record of each transaction, and it provides a way for every Bitcoin user to operate with the same understanding of who owns what.
- Private and public keys: A Bitcoin wallet contains a public key and a private key, which work together to allow the owner to initiate and digitally sign transactions. This unlocks the central function of Bitcoin — securely transferring ownership from one user to another.
- Bitcoin mining: Users on the Bitcoin network verify transactions through a process known as mining, which is designed to confirm that new transactions are consistent with other transactions that have been completed in the past. This ensures that you can’t spend a Bitcoin you don’t have, or that you have previously spent.
How does Bitcoin make money?
New Bitcoins are created as part of the Bitcoin mining process, in which they are offered as a lucrative reward to people who operate computer systems that help to validate transactions. Bitcoin miners — also known as "nodes" — are the owners of high speed computers which independently confirm each transaction, and add a completed "block" of transactions to the ever-growing "chain." The resulting blockchain is a complete, public and permanent record of every Bitcoin transaction.
Miners are then paid in Bitcoin for their efforts, which incentivizes the decentralized network to independently verify each transaction. This independent network of miners also decreases the chance for fraud or false information to be recorded, as the majority of miners need to confirm the authenticity of each block of data before it's added to the blockchain in a process known as proof-of-work.
But as Bitcoin has become more mainstream, and far more integrated into traditional finance, other ways of making money with Bitcoin have cropped up. Mostly notably, there are about a dozen spot bitcoin ETFs that track the price of Bitcoin, but can be bought and sold through most major stock brokerages. This type of ETF, first traded in 2024, has let investors gain exposure to Bitcoin without ever owning it directly.
You decide: Is Bitcoin a good investment?
[Buying cryptocurrency](https://www.nerdwallet.com/investing/learn/how-to-buy-cryptocurrency) exposes you to a volatile asset class. A common rule of thumb is to devote only a small portion of a diversified portfolio to risky investments such as Bitcoin or individual stocks.
Whether or not [Bitcoin is a good investment](https://www.nerdwallet.com/investing/learn/is-bitcoin-a-good-investment) for you depends on your individual circumstances, but here are a few pros and cons of Bitcoin to consider.
Bitcoin pros
- Privacy. Bitcoin transactions and balances are recorded on a public ledger (the blockchain), but that ledger doesn't store any personally-identifying information about users. If you make sure your Bitcoin address can't be linked to your real-life identity, you can own, send and receive Bitcoin anonymously.
- Decentralization. After the financial crisis and the Great Recession, some investors are eager to embrace an alternative, decentralized currency — one that is essentially outside the control of regular banks, governing authorities or other third parties.
- Growth potential. Some investors who buy and hold the currency are betting that once Bitcoin matures, greater trust and more widespread use will follow, and therefore Bitcoin’s value will grow.
Bitcoin cons
- Price volatility. While Bitcoin's value has risen dramatically over the years, buyers' fortunes have varied widely depending on the timing of their investment.
- Hacking concerns. While backers say the blockchain technology behind Bitcoin is even more secure than traditional electronic money transfers, there have been a number of high-profile hacks.
- Not protected by SIPC. The Securities Investor Protection Corporation insures investors up to \$500,000 if a brokerage fails or funds are stolen, but that insurance doesn’t cover cryptocurrency
.
Storing your Bitcoins: Hot wallets vs. cold wallets
If you decide to buy Bitcoin, you’ll need a place to store it. Bitcoins can be stored in two kinds of digital wallets:
- Hot wallet: You can often store cryptocurrency on exchanges where it is sold. Other providers offer standalone online storage. Such solutions provide access through a computer browser, desktop or smartphone app.
- Cold wallet: An encrypted portable device much like a thumb drive that allows you to download and carry your Bitcoins.
Basically, a hot wallet is connected to the internet; a cold wallet is not. But you need a hot wallet to download Bitcoins into a portable cold wallet.
How is Bitcoin taxed?
Like other cryptocurrencies, sales of Bitcoin are subject to short-term capital gains tax rates if the Bitcoin was held for a year or less, or long-term capital gains tax rates if the Bitcoin was held for more than a year.
Myths about Bitcoin
Bitcoin's hacker-culture origins and price volatility have brought it a significant amount of media attention, which has given rise to a number of common misconceptions about it. Here are a few:
- Bitcoin payments are only used for illegal activity. According to BitPay, there are dozens of (legitimate) companies that accept Bitcoin payments directly, and thousands that allow shoppers to purchase gift cards with Bitcoin
.
- Bitcoin transactions are untraceable. Bitcoin transactions are recorded in a public, online ledger (a blockchain) that everyone can see and no one can edit. It is true that a Bitcoin user can transact anonymously if their identity is not tied to their Bitcoin wallet, but many if not most of the major exchanges do collect and store user information.
- Bitcoin Cash is a form of Bitcoin. Bitcoin Cash (BCH) is actually a separate cryptocurrency which "forked" itself from Bitcoin in 2017. Check out our article on [Bitcoin vs. Bitcoin Cash](https://www.nerdwallet.com/investing/learn/what-is-bitcoin) to learn more.
- Investing in Bitcoin is a hedge against stock market downturns. Over the last five years, the price of Bitcoin has often moved in the same direction as stock market indexes such as the S\&P 500 and Nasdaq composite, making Bitcoin questionable as an investment alternative to stocks.
- Bitcoin payments are free and instantaneous. Due to the time- and energy-intensive nature of Bitcoin mining, transactions can take hours to process and may cost several dollars per payment.
Frequently asked questions
How do I start mining Bitcoin?
As Bitcoin has grown in popularity and value, competition for the rewards offered by mining has grown steeper. Most miners now use specialized computers designed just for that purpose. This equipment is expensive and uses a huge amount of energy, so the costs to run a mining operation can be a barrier to entry for many.
All of this means that Bitcoin mining is a difficult proposition for beginners, though some smaller operations choose to join mining pools in which they combine their computing power with others in an attempt to compete for rewards.
If you're interested in getting started, a first step would be to research some [popular mining pools](https://coinmarketcap.com/alexandria/article/what-is-pool-mining) and what they require.
Can Bitcoin be converted to cash?
Like many other assets, Bitcoin can be bought and sold using [fiat currencies](https://www.nerdwallet.com/article/investing/fiat-currency) such as the U.S. dollar. The price will depend on the current market value, which can fluctuate significantly from day to day.
If you're looking to buy or sell Bitcoin, you have a handful of choices. But for most beginners, the simplest and most convenient option is using a [cryptocurrency exchange](https://www.nerdwallet.com/best/investing/crypto-exchanges-platforms).
Some of these exchanges are operated by online stock brokerages, and others are independent. But given Bitcoin's prominence in the market, you can trade it at pretty much any platform that offers crypto.
Here are some other options for buying and selling Bitcoin:
- Peer-to-peer transactions: Someone might pay you in Bitcoin for a product or service, or accept Bitcoin as payment instead of cash.
- Bitcoin ATMs: There are more than 36,000 Bitcoin ATMs in the U.S. Search [Coin ATM Radar](https://coinatmradar.com/) to find one near you.
The author and the editor owned Bitcoin at the time of publication. |
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