What Is a Capital Gain?
A capital gain is the profit from selling property for more than your cost basis, and the IRS treats crypto as property, so the entire capital-gains machine applies: rates, holding periods, netting, the lot. The single most valuable fact in it: how long you held before selling can change your federal rate by double digits.
How It Actually Works
- Short-term gains, assets held one year or less, are taxed as ordinary income: 10 to 37 percent by bracket.
- Long-term gains, held over a year, get preferential rates: 0, 15, or 20 percent by income. High earners add 3.8 percent net investment income tax either way.
- Disposals trigger it: selling for dollars, swapping token for token, spending crypto on anything. Moving between your own wallets does not. My tax guide walks the full list.
- Gains net against losses: total both, offset, and up to $3,000 of net loss deducts against ordinary income yearly with the rest carrying forward, the machinery behind tax-loss harvesting.
The Arithmetic Worth Staring At
A $10,000 gain at 24 percent ordinary costs $2,400; the same gain long-term at 15 percent costs $1,500. Eleven days short of a year can cost $900. My tax estimator shows your own numbers side by side, and patience gets a literal price tag.
Risks and Common Mistakes
- Trading actively without reserving for the bill: gains are taxable even if the proceeds stayed in crypto and later fell.
- Forgetting swaps count. The trade that felt like repositioning was a disposal with a gain attached.
- Confusing earned crypto (ordinary income at receipt: staking, airdrops, wages) with gains on later appreciation; they stack, on different lines.
When It Matters
Every disposal decision, sizing every profit-taking plan on my Portfolio page, and every December, when the netting math rewards people who kept records all year.
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