• Yes. The Financial Crimes Enforcement Network (FINCEN) of the US Treasury Department announced in 2013 that investing in Bitcoin and using it as a method of payment is legal as long as the seller is ready to accept it. Cryptocurrency is classified as digital currency by the Securities and Exchange Commission, commodities by the Commodity Future Trading Commission, and property by the Internal Revenue Service.
• You can buy in any state, but some have restrictions. New York, for example, has a policy requiring any business dealing with cryptocurrencies to register for a BitLicense. Expect regulatory and legal modifications at the federal and state levels as adoption grows.

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