If you are new to Bitcoin, one of the first questions you may ask is whether it is legal. In the United States, the short answer is yes, with rules around taxes, regulators, and states. This guide is informational only, not legal or tax advice.
Key Takeaways
- You can buy, hold, and spend Bitcoin in the United States. The rules focus on taxes and on businesses that handle other people’s money.
- The IRS treats Bitcoin as property, not currency. Selling or spending it can create a taxable gain or loss.
- Bitcoin is not legal tender. That is different from being illegal.
- No single agency covers it all. The IRS, FinCEN, the CFTC, the SEC, and the states each play a part.
Is it legal to own and use Bitcoin?
Yes. Federal agencies treat owning and using Bitcoin as ordinary activity and write their rules around it. The IRS explains how to report Bitcoin on your taxes. FinCEN, the Treasury bureau that fights money laundering, says that an individual who obtains virtual currency to buy goods or services for themselves is a “user,” not a money transmitter, including when using an unhosted wallet. Rules mostly apply to businesses, such as exchanges, that move or exchange money for other people.
How Bitcoin is taxed
For U.S. tax purposes, the IRS considers Bitcoin and other digital assets property, not currency. That has several practical effects:
- If you own Bitcoin as an investment and later sell or dispose of it, you generally have a capital gain or loss. Holding it for one year or less makes the gain short-term. Holding it longer than a year makes it long-term.
- If you receive Bitcoin as payment for goods or services, or from mining, its value in U.S. dollars when you receive it counts as income.
- Buying Bitcoin with U.S. dollars and holding it, or moving it between wallets you own, does not by itself mean answering “Yes” to the IRS digital asset question. Paying a transaction fee in bitcoin does count as a transaction.
- Tax returns ask whether you received or disposed of a digital asset during the year. Keep records of purchases, sales, and dates.
Since 2025, brokers such as custodial exchanges report digital asset sales to the IRS on Form 1099-DA, and reporting of cost basis for certain transactions starts in 2026. See the IRS digital assets page and its virtual currency FAQs for the details.
Not legal tender, but not illegal
“Legal tender” is a narrow term. Under federal law, U.S. coins and currency are legal tender for debts, taxes, and dues, according to the Federal Reserve. Bitcoin is not on that list, and the IRS treats it as property instead. That does not make it illegal. It simply means the law does not define Bitcoin as official U.S. money.
Who regulates Bitcoin?
The Congressional Research Service says there is no comprehensive federal regulatory framework for crypto as of its April 2025 overview. Instead, existing rules apply depending on what is being done. For Bitcoin, the main players are:
- IRS: taxes, as described above.
- FinCEN: exchanges and other crypto businesses generally must register as money services businesses and follow anti-money-laundering and know-your-customer rules.
- CFTC: treats Bitcoin as a commodity. Firms offering Bitcoin futures and options must register, while its power over regular spot markets is limited to fraud and manipulation.
- SEC: oversees securities. It created a crypto task force in January 2025 to clarify its approach.
State differences
States matter too. Licensing for money services businesses is largely handled state by state. New York, for example, has a “BitLicense” regulation (23 NYCRR Part 200, issued in 2015) for virtual currency businesses, and some states, including New York and Wyoming, offer special banking charters to crypto firms. If you run a business that handles Bitcoin for others, check your state’s requirements.
A beginner’s checklist
- Keep a record of every purchase, sale, and payment with Bitcoin.
- Learn how the IRS question about digital assets applies to you before filing.
- Be wary of anyone promising guaranteed returns.
- Ask a qualified tax or legal professional about your own situation, since rules change.
Related reading: Our Bitcoin ETF and U.S. reserve bill news shows how policy keeps moving, and What Is a Bitcoin Wallet? A Beginner’s Guide covers how to hold your own keys. To see why no regulator can change Bitcoin’s supply, read Why There Will Only Ever Be 21 Million Bitcoin.
Sources
- IRS: Digital assets
- IRS: Notice 2014-21 (Internal Revenue Bulletin 2014-16)
- IRS: Frequently asked questions on virtual currency transactions
- FinCEN: Application of FinCEN’s Regulations to Certain Business Models Involving Convertible Virtual Currencies (FIN-2019-G001)
- Federal Reserve: Is it legal for a business in the United States to refuse cash as a form of payment?
- Congressional Research Service: Introduction to Cryptocurrency (April 1, 2025)
- New York DFS: Virtual currency businesses
- Bitcoin.org: Frequently asked questions
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This post is for educational purposes only and is not financial advice. Bitcoin only, no altcoin coverage.
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