The US is home to most of the world’s largest Bitcoin companies, so it’s no surprise that it’s easy to buy bitcoins in the United States using nearly any payment method: cash , credit card , or bank transfer. Listen to a Bitcoin podcast to stay up-to-date with the latest news. Making your Bitcoin Cash purchase. This commission officially classified Bitcoin as a commodity towards the end of — this classification meant that Bitcoin would be liable to taxation by the Internal Revenue Service as it was categorized as property.