Is crypto legal? The rules for owning, buying and trading crypto in the US, UK and Canada

It’s one of the most common questions about crypto, and the short answer is reassuring: yes, owning and trading crypto is legal in the United States, the United Kingdom and Canada. But “legal” covers a lot of ground. Crypto isn’t money in the legal sense, the companies that sell it are regulated, some products are banned and very little of it is protected if things go wrong.

This guide sets out where each country stands, using what the regulators themselves say.

The short answer

United States

Legal, but not legal tender

Under US law, United States coins and currency are legal tender (31 U.S.C. § 5103). Crypto isn’t, so nobody is obliged to accept it. That doesn’t make it illegal: it means using it is a choice for both sides.

The way US agencies treat crypto shows it’s a legal, regulated asset:

• Tax: the IRS treats digital assets as property. Selling, swapping or spending them can create a taxable gain or loss. See US crypto tax.
• Platforms: exchanges register with FinCEN as money services businesses and need state licenses; New York has its own license. You can check a company on FinCEN’s registrant search. See how to check if an exchange is registered.
• Funds: the SEC approved spot bitcoin exchange-traded products in January 2024 and spot ether products in 2024. See bitcoin ETFs explained.

Where the rules get complicated

Whether a particular token is a security, a commodity or neither can affect which regulator oversees it. In 2015 the CFTC found that bitcoin is a commodity, and in 2025 SEC staff said the memecoins they described aren’t securities, which also means buyers don’t get securities-law protection. See memecoins explained. In March 2026 the SEC issued a formal interpretation sorting crypto assets into five categories, and listed bitcoin and ether among its examples of digital commodities that aren’t themselves securities. See is crypto a security? Separately, a January 2025 executive order bars federal agencies from creating a US central bank digital currency. See what is a CBDC?

United Kingdom

Legal to own, not money

HMRC’s Cryptoassets Manual is direct: owning and using cryptoassets is not illegal in the UK, and doesn’t in itself imply tax evasion or any other illegal activity. HMRC also says it doesn’t consider cryptoassets to be currency or money. Gains and income are taxed. See UK crypto tax.

How UK firms are regulated

• Registration: crypto businesses providing in-scope services in the UK must be registered with the FCA under the Money Laundering Regulations. A full FCA authorization regime starts on 25 October 2027.
• Marketing: since 8 October 2023, crypto promotions to UK consumers must be communicated or approved by an FCA-authorized firm, or by a crypto business registered with the FCA, unless an exemption applies. The FCA says promotions made any other way are a criminal offense, punishable by up to two years in prison, an unlimited fine, or both. Compliant promotions include risk warnings and positive frictions such as a 24-hour cooling-off period for new customers.

What’s banned or restricted

• Crypto derivatives for retail investors, such as futures, options and CFDs: the FCA’s ban remains in place. See leverage and derivatives rules.
• Crypto ATMs: the FCA says none of the registered crypto firms is approved to offer them, so any operating in the UK are doing so illegally. See bitcoin ATMs.

Since 8 October 2025, retail investors can again buy crypto ETNs listed on a UK investment exchange. See crypto ETNs in the UK.

The FCA’s warning applies whatever you buy: consumers should be prepared to lose all their money if they buy cryptoassets, and shouldn’t expect FSCS compensation.

Canada

Legal, not legal tender

The Financial Consumer Agency of Canada says that, unlike the Canadian dollar, crypto assets are not legal tender in Canada, and that no government or central bank issues or oversees them. Its guidance tells consumers to check the Canadian Securities Administrators’ list of crypto trading platforms authorized to do business with Canadians.

How platforms are regulated

• Securities regulators: crypto trading platforms serving Canadians must register with the provincial securities regulators or sign pre-registration undertakings while they apply. Under CSA Staff Notice 21-332, platforms commit to hold clients’ crypto in trust, not to lend or reuse it, and not to offer margin, credit or other leverage to any client.
• FINTRAC: businesses dealing in virtual currency must also register with FINTRAC as money services businesses. FINTRAC says registration isn’t an endorsement.
• Stablecoins: platforms can only offer fiat-backed stablecoins that meet CSA conditions. See stablecoins explained.

The FCAC adds two warnings: federal and provincial deposit insurance doesn’t cover crypto assets, and crypto transactions can’t be reversed once confirmed on the blockchain. See Canada crypto tax for the tax side.

What’s changed recently

The legal picture has moved quickly. The main milestones in our three countries:

None of these made crypto illegal. Most of them bring crypto further inside the regulated financial system, with more rules for the businesses involved and, in some cases, more protection for users.

What “legal” doesn’t mean

Being allowed to buy crypto isn’t the same as being protected:

• No deposit insurance. The FDIC says deposit insurance doesn’t protect against the failure of crypto exchanges, custodians or wallet providers; the FCAC and the FCA say the same for Canada and the UK. See is your crypto insured?
• Registration isn’t a guarantee. It’s a minimum standard, not an endorsement.
• Scams are still illegal. Fraud using crypto is a crime in all three countries, and losses are large. See crypto scams and where to report them.
• Taxes still apply to every sale, swap and piece of crypto income.

How to stay on the right side of the rules

1. Use a platform registered or authorized where you live.
2. Keep records of every purchase, sale and swap for your taxes.
3. Be suspicious of products banned for retail investors in your country, offered from abroad.
4. Only invest what you could afford to lose.