Chapter 1: The Basics: Bitcoin is Property

The most fundamental concept for understanding crypto taxes in the United States is this: The IRS treats Bitcoin as property, not currency. This classification has enormous implications. When you buy a stock and sell it for a profit, you owe capital gains tax. The exact same rules apply to Bitcoin and all other cryptocurrencies.

Why This Matters

Because Bitcoin is property, almost every transaction involving it is a potentially taxable event. This includes:

• Selling Bitcoin for US dollars (or any fiat currency)
• Trading Bitcoin for another cryptocurrency (like Ethereum)
• Using Bitcoin to buy goods or services
• Receiving Bitcoin as payment for work

The IRS does not care that you never "cashed out" to dollars. If you traded BTC for ETH, you have realized a gain or loss on the Bitcoin portion of that trade.

Record Keeping: The "Zero Basis" Danger

Many investors assume that if they lose their records, they can just estimate their taxes later. This is a dangerous misconception. The Risk: If you cannot prove what you paid for your Bitcoin (your "Cost Basis"), the IRS is legally allowed to assume your cost was $0. Scenario: You bought 1 BTC for $50,000 and sold it for $55,000. You should pay tax on the $5,000 profit. Without Records: The IRS assumes a $0 cost basis. You are now taxed on the full $55,000.