What it is
Capital gains tax applies when an investor sells an asset for more than its original purchase price (cost basis). The gain is the difference between the sale price and the cost basis. In the U.S., capital gains are categorized as either short-term (for assets held one year or less) or long-term (for assets held over one year), with different tax rates. Short-term gains are typically taxed at ordinary income rates, while long-term gains usually benefit from lower preferential rates.
For retail investors in crypto, understanding capital gains tax is crucial because every sale, trade, or even use of cryptocurrency for purchases can trigger a taxable event. When you sell Bitcoin for fiat, exchange Ethereum for another altcoin, or use crypto to buy goods, you potentially incur a capital gain or loss. Tracking cost basis and holding periods for numerous transactions is complex, making tools and accurate tax reporting, like the upcoming Form 1099-DA, vital for compliance.
Why it matters
This tax directly impacts your returns from selling or trading crypto; understanding it helps you manage your tax liabilities and investment strategies.
Reviewed under editorial standardsUpdated September 26, 2026Not investment advice