Short-Term vs Long-Term Crypto Gains
In the US the holding period flips you from ordinary income rates (up to 37%) to long-term rates (0% / 15% / 20%). One day can be the difference between a 37% tax and a 15% tax. Paste your trades and see the split.
date, type, asset, qty, price_usd. Type is buy or sell. Date is YYYY-MM-DD. Price is total per-unit USD price (not total cost).Form 8949 summary
Per-lot detail, FIFO matched. Copy into your tax software or download as CSV.
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Get the $19 audit →The one-year rule (and the one-day trap)
The holding period for crypto starts the day after you bought it and ends on the day you sold it. To qualify as long-term, you need more than one year — not exactly one year. If you bought on Jan 15, you must sell on Jan 16 of the following year or later to get the long-term rate.
Why this matters
On a $20,000 gain, the difference between short-term (e.g. 24% bracket = $4,800) and long-term (15% = $3,000) is $1,800 of free money. If you're a few weeks away from the one-year mark, the calculator will flag it.