Why classification changes everything
When a tax authority decides how to treat an asset, almost everything downstream follows from that one decision. If crypto were classified as currency, the way many people intuitively think of it, spending it would generally be treated the same as spending a dollar bill: no gain, no loss, nothing to report. But in many jurisdictions, including under the IRS's long-standing guidance, crypto is instead classified as property — more like a share of stock or a piece of real estate than like cash. That reclassification is the single most important fact in this entire course, because it means the tax system doesn't ask 'did you convert this to your local currency?' It asks 'did you dispose of an asset, and did that asset change in value while you held it?'
Property treatment means that disposing of a token — in almost any way — is a potentially taxable event. Selling it for fiat is the obvious case, but property treatment doesn't stop there. Trading one token for another, using crypto to buy a coffee, or swapping into a stablecoin can all count as disposals, because in each case you're giving up an asset you held at some cost and receiving something else in return. The difference between what you received and what you originally paid (your cost basis, covered in depth next lesson) is the gain or loss that gets reported. This framework is not universal in every technical detail — some jurisdictions carve out exceptions, thresholds, or special treatment for small personal transactions — but the general shape of 'crypto is property, not currency' is the dominant approach across most major tax systems today.